Hawk Air Defense Guided Missile System RADAR Set AN-MPQ-51 Operator and Organizational Maintenance Manual - TM 9-1425-525-12-1

Citation preview

D 101. 11 : 9-1430-529-12-1/2

1-17 TM

9-1430-529-12-1

TECHNICAL MANUAL

OPERATOR AND ORGANIZATIONAL MAINTENANCE MANUAL

RADAR

10399038

SET

AN/MPQ-51

(W/ E)

10674604

(XO - 1 )

(WO/E)

1430-00-178-8454

HAWK

AIR DEFENSE

GUIDED MISSILE SYSTEM

Y

R

A

R

B

I

L MAN MA N ALDEN BOC UME PUB NTS LIC R 1 P 24 984 ‫זי‬

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UNIV

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IN

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OF

UNIVERSITY OF VIRGINIA LIBRARY

This copy is a reprint which includes current

X004816445 pages from Changes

DEPARTMENT

P 840919-1

OF THE

1 Through 17 .

ARMY

AUGUST

1972

C13

TM 9-1430-529-12-1

WARNING RADIATION HAZARD This equipment contains the following radioactive items : NSN

Nomenclature Electron tube 5651WA Electron tube 6627/0B2WA Electron tube 6626/0A2WA Electron tube MA-362A, B,

Isotope

5960-00-262-0286 5960-00-624-4718 5960-00-503-4880 5960-00-844-5183

Co 60

5920-00-864-2984 5960-01-013-0079

H3

Amount (Microcuries)

0.40

C, D , E Spark arrestor 10106476 Electron tube, TR limiter, MD- 80K24 (MCDY) MA- 3959-I ( MCWA) Electron tube 5C22

3,000 Less than 50,000 5960-00-116-9969

Unknown

0.080

*Isotope and level of activity varies among manufacturers. Refer to TB 43-0116. Refer to TM 3-261 , TM 38-250 , and TB 43-0116 for information relative to shipping, storage, handling, and disposal of radioactive material .

FIRST AID FOR RADIOACTIVE CONTACT The following first aid procedure for wounds caused by anything coated with a radioactive particle material represent the only reasonable first aid treatment which would possibly be available :

a. Stimulation of mild bleeding by normal pressure about the wound and by use of suction cups.

WARNING

Do not suck the wound by mouth . The wound must be washed with soap and flushed with plenty of clear water.

b. If the wound is of the puncture type , or the opening is quite small , an incision should be made to promote free bleeding and to facilitate cleaning and flushing of the wound. c. Evacuate patient to a medical facility where monitoring of the wound can be accomplished . All such wounds should be examined by a medical officer.

d. For wounds involving the extremities , pending medical attention , place a lightly constricting band (tourniquet) 2 to 4 inches closer to the heart than the site of the wound . The band should be tight enough to halt the flow of blood in superficial blood vessels but not tight enough to stop the pulse (arterial flow) .

CLEANING SURFACES ON WHICH TUBES HAVE BEEN BROKEN

Wet Method. Put on rubber or plastic gloves. Pick up large fragments with forceps then , using a wet cloth , wipe across the area. Make one wipe at a time and fold cloth in half, using the clean side for wiping each time. When cloth becomes too small, discard and start again with a clean piece of cloth. Care must be taken not to rub the radioactive particles into the surface being cleaned by using a back and forth motion . All ebris and cloths used for cleaning should be sealed in a container such as a plastic bag, heavy waxed paper, ce cream carton, or glass jar for disposal .

TM 9-1430-529-12-1

C15

WARNING FOR RADIO-FREQUENCY RADIATION HAZARD (FOR IHAWK SYSTEMS WITH ICWAR AN/MPQ -55 )

Radio-frequency (rf) radiation from radar antennas and associated equipment is a potential hazard to personnel. Rf radiation is not cumulative but it can be hazardous . It heats the body tissues , and , if the radiation intensity is sufficiently high, will permanently damage the tissue . This damage is not immediately apparent .

Precautions should be taken to insure that personnel are not exposed to rf radiations of hazardous intensity levels . Personnel who must be within the hazardous distances for the below listed radars should be instructed not to place themselves on the radiating side of the antenna, and to never look into a transmitting horn or open waveguide which is connected to an energized transmitter.

Personnel are prohibited from entering areas where they may be exposed to levels of rf radiation above 10 milliwatts per square centimeter ( 10 mw/cm² ) . This level, though not considered hazardous , is stipulated by AR 40-583 as the maximum permissible exposure level for personnel .

A power intensity of at least 10 mw/cm² is present along the axis of each radar's transmitted beam , for the distances listed below. These distances are based on calculations and actual measurements and may be used as a guide to prevent radio-frequency radiation injury . In each instance , radiation intensity rapidly diminishes as the distance is increased .

ANTENNA

DISTANCE

Improved High-powered Illuminator Radar

111.5 m (366 ft )

Improved Cw Acquisition Radar non -scanning scanning

74 m (243 ft) 36 m ( 118 ft)

Improved Pulse Acquisition Radar Improved Range- only Radar

15.2 m ( 50 ft) 45.1 m (148 ft)

The 36m distance for the scanning ICWAR antenna does not mean the system constitutes a hazard to personnel while the antenna is scanning . It means that those systems capable of producing power densities greater than 100 mw/cm2 when the antenna is stationary must be controlled out to the 100 mw/cm2 distance in the event the antenna should stop scanning .

No radiation hazard exists at radar ground level if the radars are not depressed below zero degrees elevation . When at all possible during maintenance , however , place the antenna at a high elevation . Personnel are restricted from the area atop the radars or other elevated locations in front of the antennas when radiating.

Personnel may move in and around the ICWAR to zero range at ground level provided they are below the horizontal center line of the antennas. There is no height restriction to either side or rear of the antennas.

Potentially hazardous power density levels do not exist in the radiation field of the improved pulse acquisition radar when scanning .

The above information is applicable to typical Hawk sites . The services of the U.S. Army Environmental Hygiene Agency are available , in accordance with the provisions of AR 40-583 for the evaluation of potential radio-frequency hazards at sites where unusual operating or site conditions may exist .

TM 9-1430-529-12-1

C17

WARNING FOR RADIO-FREQUENCY RADIATION HAZARD (FOR HAWK SYSTEMS WITH CWAR AN/ MPQ-48 )

Radio-frequency ( rf) radiation from radar antennas and associated equipment is a potential hazard to personnel. Rf radiation is not cumulative but it can be hazardous . It heats the body tissues , and , if the radiation intensity is sufficiently high, will permanently damage the tissue . This damage is not immediately apparent.

Precautions should be taken to insure that personnel are not exposed to rf radiations of hazardous intensity levels . Personnel who must be within the hazardous distances for the below listed radars should be instructed not to place themselves on the radiating side of the antenna, and to never look into a transmitting horn or open waveguide which is connected to an energized transmitter.

Personnel are prohibited from entering areas where they may be exposed to levels of rf radiation above 10 milliwatts per square centimeter ( 10 mw/cm² ) . This level , though not considered hazardous , is stipulated by AR 40-583 as the maximum permissible exposure level for personnel .

A power intensity of at least 10 mw/cm² is present along the axis of each radar's transmitted beam , for the distances listed below . These distances are based on calculations and actual measurements and may be used as a guide to prevent radio-frequency radiation injury . In each instance , radiation intensity rapidly diminishes as the distance is increased .

ANTENNA

DISTANCE

High-powered Illuminator Radar

111.5 m (366 ft)

Cw Acquisition Radar

20.4 m (67 ft) 15.2 m ( 50 ft) 45.1 m ( 148 ft)

Pulse Acquisition Radar Range-only Radar

No radiation hazard exists at radar ground level if the radars are not depressed below zero degrees elevation . When at all possible during maintenance , however , place the antenna at a high elevation . Personnel are restricted from the area atop the radars or other elevated locations in front of the antennas when radiating.

NOTE Potentially hazardous power density levels do not exist in the radiation field of the improved pulse and cw acquisition radars when scanning .

A

The above information is applicable to typical HAWK sites . The services of the U.S. Army Environmental Hygiene Agency are available , in accordance with the provisions of AR 40-583 for the evaluation of potential radio-frequency hazards at sites where unusual operating or site conditions may exist.

TM 9-1430-529-12-1

C13

WARNING

DANGEROUS VOLTAGE

is used in the operation of this equipment

DEATH ON CONTACT may result if personnel fail to observe safety precautions

Never work on electronic equipment unless there is another person nearby who is familiar with the operation and hazards of the equipment and who is competent in administering first aid. When the technician is aided by operators , he must warn them about dangerous areas.

Whenever possible , the power supply to the equipment must be shut off before beginning work on the equipment. Take particular care to ground every capacitor likely to hold a dangerous potential. When working inside the equipment, after the power has been turned off, always ground every part before touching it.

Use extreme caution when operating equipment protected by interlocks. panels, and drawers) are functioning properly. (TM 9-1425-525-12-4 )

Insure that interlocks (doors ,

Be careful not to contact high-voltage connections when installing or operating this equipment. Whenever the nature of the operation permits , keep one hand away from the equipment to reduce the hazard of current flowing through the vital organs of the body.

WARNING

Do not be misled by the term "low voltage . " Potentials as low as 50 volts may cause death under adverse conditions.

For artificial respiration , refer to FM 21-11.

EXTREMELY DANGEROUS POTENTIALS greater than 500 volts exist in the following units: Keep-alive power supply Magnetron power supply Modulator- power supply Range indicator

TM 9-1430-529-12-1

C17

WARNING DANGEROUS CHEMICALS are used in the operation of this equipment

DEATH

may result if personnel fail to observe safety precautions

The following is a list of chemicals used in the operation or maintenance of the equipment in this manual, including proper care and handling procedures and corrective actions (fire and first aid procedures).

Item (NSN/APN) Isopropyl alcohol, technical TT 1735 Grade 3 (6810-00-2865435)

Care and Handling Procedures

Corrective Actions

Flammable; keep away from open flames.

Use CO2 or dry chemical extinguisher.

Vapors toxic and can produce symptoms of intoxications and irritation of eyes, nose and throat.

Remove to fresh air and give oxygen if short of breath. Get attention .

medical

Avoid contact with skin. Not toxic but may add to the effect of inhalation.

Promptly remove soaked clothing and wash skin thoroughly with water.

Swallowing causes

nausea,

Induce vomiting if victim is con-

vomiting, abdominal pain, bleeding and central nervous system damage.

scious and alert. If victim is not alert, black coffee and activated

severe

charcoal may be given . Never give anything by mouth to a person who is unconscious. Get medical attention.

Mineral Spirits (8010-00-242-2089 )

Flammable. Avoid heat, sparks, and open flames. When heated, may yield carbon monoxide . Excessive inhala-

Use CO2 or dry chemical extinguisher. Remove victim to fresh air and get medical attention. Apply

tion causes headache, dizziness, and nausea. Use with adequate ventilation.

artificial respiration if necessary.

Avoid prolonged or repeated contact with skin.

Wash with mild soap and water and apply skin cream.

Avoid contact with eyes.

Flush thoroughly with water. Get medical attention .

TM 9-1430-529-12-1 C17

WARNING DANGEROUS CHEMICALS Continued

Item (NSN/APN)

Care and Handling Procedures

Polychlorinated biphenyls (PCB) (contained in General Electric and Electrical Utilities

When heated, vapors are highly toxic. Do not allow capacitors to become overheated. Replace any capacitors

capacitors located in the motor-

that show signs of excessive swelling or leaking.

generator assembly (5910-00675-4503/9175280 )

Avoid contact with eyes. Do not wear contact lenses when working with this material.

Avoid contact with skin.

Corrective Actions

Remove to fresh air and give oxygen if short of breath . If breathing has stopped, perform artificial respiration . Keep the victim warm. Get medical attention.

Wash thoroughly with water. Get medical attention.

Wash with soap or mild detergent and water. Remove contaminated clothing. Get medical attention.

Excessive inhalation or swallowing can cause nausea, vomiting, loss of

Get medical attention immediately. If swallowed, induce vomiting. Do

weight, liver damage and abdominal pain. When liver damage is severe, it can be fatal.

not induce vomiting in an unconscious victim.

If material leaks or vaporizes, persons in the area should wear protec-

Remove all ignition sources . Ventilate the area. If solid material is

tive clothing (paper suits, gloves, disposable booties, organic respirators )

present, sweep onto paper or other suitable material and burn in a safe

when disposing of contaminants .

place. If in a liquid form, absorb on paper towels . Evaporate in a safe place, then burn. PCB material can also be disposed of in an approved hazardous waste location.

C17

TM 9-1430-529-12-1

WARNING DANGEROUS CHEMICALS Continued

Item (NSN/APN) Toluene OC265 (6810-00-257-2487)

Corrective Actions

Care and Handling Procedures

Flammable ; keep away from open flames .

Use CO₂ or dry chemical extinguisher.

Vapors harmful. Use in well-ventilated area.

Remove to fresh air.

Avoid prolonged contact with skin.

Wash thoroughly with water.

Avoid contact with eyes.

Flush with water for at least 15 minutes. Get medical attention.

Avoid swallowing .

Get medical attention immediately. If swallowed, induce vomiting. Do not induce vomiting in an unconscious victim .

MECHANICAL HAZARD When performing maintenance procedures in the vicinity of the antenna , insure that the antenna SAFETY SWITCH , located on the base of the pedestal, is in the SAFE position .

TM 9-1430-529-12-1

C16

TECHNICAL MANUAL

HEADQUARTERS DEPARTMENT OF THE ARMY

No. 9-1430-529-12-1

WASHINGTON , D.C. ,

7 August 1972

OPERATOR AND ORGANIZATIONAL MAINTENANCE MANUAL RADAR SET AN /MPQ-51 10674604 (WO/E)

(XO- 1 )

10399038 (W/E)

1430-00-178-8454

(HAWK AIR DEFENSE GUIDED MISSILE SYSTEM )

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual . If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter or DA Form 2028 ( Recommended Changes to Publications and Blank Forms) direct to: Commander, U.S. Army Missile Command, ATTN: DRSMI - SNPM , Redstone Arsenal , Alabama 35898. A reply will be furnished to you.

TABLE OF CONTENTS

Paragraph CHAPTER Section

1. I. II.

CHAPTER Section

Page

INTRODUCTION General Description and Data

1-1-1-6 1-7-1-10

1-1 1-1

2. I. II. III.

OPERATING INSTRUCTIONS Controls and indicators Operation under usual conditions Operation under unusual conditions

2-1, 2-2 2-3, 2-4 2-5-2-11

2-1 2-12 2-12

CHAPTER Section

3. I. II. II.1. III.

PERIODIC CHECKS AND ADJUSTMENTS Preventive maintenance checks and services Operational checks HAWK battery silent mode system redeployment checks Illustrations

3-1-3-5 3-10-3-17.1 3-17.2 , 3-17.3 3-18

3-1 3-3 3-36.1 3-37

CHAPTER Section

3.1. I. II. III. IV. V. VI. VII. VIII.

EXPLANATION OF CHECKS General Power distribution weekly checks Antenna weekly checks Parallax circuits weekly checks Transmitter and modulator power supply weekly checks Range indicator weekly checks ...... Receiver weekly checks Radar performance weekly checks

3.1-1 , 3.1-2 3.1-3-3.1-9 3.1-10-3.1-16 3.1-17-3.1-21 3.1-22-3.1-25 3.1-26-3.1-29 3.1-30-3.1-36 3.1-37-3.1-40

3.1-1 3.1-1 3.1-2 3.1-2 3.1-5 3.1-6 3.1-6 3.1-7

CHAPTER Section

4. I. II. III. IV. V.

MAINTENANCE INSTRUCTIONS Repair parts, special tools, and equipment Service upon receipt-general Service upon receipt of the ROR Lubrication Maintenance services

4-1 , 4-2 4-2.1 , 4-2.2 4-2.3, 4-2.4 4-3, 4-4 4-5 4-11

4-1 4-1 4-2.1 4-2.2 4-2.2

CHAPTER

5.

CORRECTIVE MAINTENANCE

5-1-5-9

5-1

6. I. II. III.

PREPARATION FOR TRAVEL General Methods of transportation

6-1-6-3 6-4, 6-5 6-6-6-10

6-1 6-1 6-4

Section

Preparation for travel

i

TM 9-1430-529-12-1

CHAPTER Section

CHAPTER

Section

CHAPTER APPENDIX

INDEX

7. I. II. 8.

EMPLACEMENT PROCEDURES General Emplacement of range-only radar AN/MPQ -51

C16 Paragraph

Page

7-1, 7-2 7-3-7-7

7-1 7-1

ORIENTING AND ALINING

I. II. g.

Orientation and alinement of the ROR

8-1-8-5

8-1

Azimuth mil ring ...........

8-6-8-9

8-10

LIGHTNING PROTECTION

9-1-9-3

9-1

A. B. C. D. E.

REFERENCES BASIC ISSUE ITEMS LIST MAINTENANCE ALLOCATION CHART NOMENCLATURE AND REFERENCE DESIGNATIONS SERIAL NUMBER EFFECTIVITY CODE

A-1 B-1 C-1 D-1 E-1 Index 1

TM 9-1430–529-12-1

C16

CHAPTER 1

INTRODUCTION

Section I. GENERAL

1-1 .

Scope

units maintaining this equipment, refer to TM 38-750.

a. This technical manual (TM) contains instructions for operation and organizational maintenance of range only radar set AN/MPQ -51 (XO-1 ) (ROR ) .

1-5.1 .

Reporting

Equipment

Improvement

Recommendations ( EIR's) b. This TM is one of a series of manuals on operation, assembly and emplacement, organizational maintenance, direct and general support maintenance, and depot maintenance of the HAWK air defense guided missile system.

1 If your HAWK equipment needs improvement, let us know. Send us an EIR. You , the user, are the only one who can tell us what you don't like about your equipment. Let us know why you don't like the design or performance. Put it on an SF 368 (Quality

1-2.

Destruction of Material to Prevent Enemy Use

Deficiency Report ). Instructions for preparing EIR's are provided in TM 38-750, The Army Maintenance Management System (TAMMS) . EIR's should be

Destruction of materiel to prevent enemy use will be undertaken by the user upon order of the unit commander. His decision will be based upon orders and policies established by the Army Commander. Procedures for destruction of the ROR

mailed directly to Commander, US Army Missile Command, ATTN: DRSMI - SNEM, Redstone Arsenal, Alabama 35898. A reply will be sent directly to you .

and related materiel are contained in TM 430002-24. 1-5.2. 1-3. Travel Preparation, Emplacement, Alinement, and Lightning Protection Complete instructions for preparation for travel, emplacement , orientation and alinement, and lightning protection of the chapters 6 through 9.

Hand Receipt

Hand receipts for Components of End Item (COEI), Basic Issue Items (BII) , and Additional Authorization List (AAL) items are published in a Hand Receipt manual , TM 9-1425-52510-HR or TM 9-1425-1525-10-HR . This

ROR are contained in

1-4. Organizational Maintenance Allocation The responsibility of organizational maintenance units and the allocation of repair parts and tools are reflected in TM 9-1430-529-24P and the maintenance allocation chart in appendix C.

manual is published to aid in property accountability and is available through : Commander, US Army Adjutant General Publication Center, ATTN : AGDL-OD , 1655 Woodson Road , St. Louis, MO 63114.

1-6.

Readiness Rating Criteria

1-5. Forms, Records, and Reports

For the forms, records and reports required of

Refer to table 3-1 for readiness reporting in accordance with AR 750-40.

1-1

C13

TM 9-1430-529-12-1 Section II. DESCRIPTION AND DATA

1-7. Physical Description

IROR is mounted on a type M514 , one-ton , twowheel trailer. NOTE The key numbers shown below in parentheses refer to figure 1-2.

NOTE The key numbers shown below in parentheses refer to figure 1-1. a. General. The IROR is a completely mobile

b. Receiver-transmitter. The receiver-transmitter

radar set consisting of the following major components: receiver-transmitter ( 1 ) , modulator-power

consists of the following components : IF preamplifier ( 4 ), local-oscillator control amplifier ( 5 ) , local oscillator-tuning drive ( 8 ) , magnetron pulse gener-

supply (3) , antenna ( 2 ) , antenna pedestal (4 ) , motor-generator ( 6 ) , and radar set group ( 5) . The

ator (9) , sequential timer ( 2) , rf components as-

09/198

2 213)

3

jowo O

5

8.S.ARMY U.S.ARMY 9602

oh

gnito

atsibook

I-E sided of

-T a MI 65292 to beslopes aringan binab

1-Receiver-transmitter 2-Antenna

3-Modulator- power supply 4-Antenna pedestal Figure 1-1 . IROR- major assemblies.

1-2

5-Radar set group 6-Motor-generator

C13 sembly ( duplexing-mixer group ) (6 ) , wavemeter indicator (7) , and receiver-transmitter subassembly

TM 9-1430-529-12-1 NOTE The key numbers shown below in parentheses refer to figure 1-3.

(14 ). The receiver-transmitter subassembly, located on the inside of the door, contains the following components: noise figure amplifier ( 11 ) , AFC amplifier ( 10 ) , back bias amplifier ( 12 ) , controldetector (13 ) , and ferrite attenuator control (1 ) . A blower, located within the cabinet, cools the mag-

c. Modulator-Power

Supply.

The

modulator-

power supply contains the trigger pulse generator (4 ) and the high- voltage power supply ( 1) . An indicator panel ( 3) , located on the inside of the enclosure door, contains meters for monitoring

netron pulse generator . Mounted on top of the receiver-transmitter is a high-power dummy load (3) which is used to dissipate rf energy when radia-

high-voltage, rectifier current, magnetron shunt current, magnetron operating current, and mod-

tion into the atmosphere is not desired .

ulator power supply voltage. An internally located

1-2.1

TM 9-1430-529-12-1

2

14

13

12-

11

MI 65293

10

1-Ferrite attenuator control 2-Sequential timer 3-High-power dummy load 4-IF preamplifier 5-Local-oscillator control amplifier 6-RF components assembly (duplexing-mixer group ) 7-Wavemeter indicator

8-Local oscillator-tuning drive 9-Magnetron pulse generator 10-AFC amplifier 11-Noise figure amplifier 12-Back bias amplifier 13-Control-detector 14-Receiver-transmitter subassembly

Figure 1-2. Receiver- transmitter components.

3

味

MI 65294

1-High-voltage power supply 2-Blower

3-Indicator panel 4-Trigger pulse generator

Figure 1-3. Modulator-power supply components. blower ( 2 ) cools the modulator -power supply components .

d. Antenna. The antenna (2, fig. 1-1), which is bracket mounted to the receiver-transmitter and

the modulator-power supply , functions as a receiver of target echo reflections and a transmitter of high-energy rf pulses. The vertically polarized antenna is shaped like a parabola and incorporates a fixed feed .

1-3

TM 9-1430-529-12-1

NOTE The key numbers shown below in parentheses refer to figure 1-4.

muth positioning system and the waveguide pressurization unit. Two access doors (2 and 3) and a vent hood (5 ) , equally spaced about the pedestal, permit access to the synchro orient cluster adjust

e. Antenna Pedestal . The antenna pedestal is the supporting structure for the receiver-transmitter, the modulator-power supply, and the antenna. It consists of a pedestal and drive unit, and a rotating head assembly.

(1 ) Pedestal

and

drive

unit.

The

conically

shaped pedestal and drive unit (4 ) houses the azi-

knobs, the alinement meter, and a blower. A twoposition toggle switch at the base of the pedestal disables the antenna by cutting off the 28 - vdc motor-generator contactors. to the

supply

Sliprings, located in the center of the pedestal and drive unit, provide electrical connection between components of the radar set group and those of the receiver-transmitter and modulator-power sup-

5

2

J /F )

3 3/4 REAR VIEW

3/4 FRONT VIEW

1-Rotating head assembly 2-Access door 3-Access door

4-Pedestal and drive unit 5-Vent hood

Figure 1-4. Antenna pedestal.

1-4

MI 65295

TM 9-1430-529-12-1

ply. An azimuth stow lock, mechanically linked to a microswitch , locks the azimuth positioning system gear train. A graduated azimuth scale at the top of the pedestal and drive unit determines the azimuth bearing of the receiver-transmitter antenna .

g. Radar Set Group. The radar set group houses the following major components : control-indicator panel ( 2 ) , amplifier-computer ( 7), low-voltage power supply ( 11), and power distribution panel ( 14) . One internally located blower cools the radar set group components.

(2) Rotating head assembly. The rotating head assembly ( 1 ) is mounted on top of the pedestal and drive unit, and houses the elevation positioning system. An elevation stow lock, mechanically linked to a microswitch, locks the elevation positioning system gear train. This microswitch and its counterpart in the azimuth positioning system are parts of the interlock circuits which apply 28 vdc to the motor-generator contacts . A graduated elevation scale determines the elevation bearing of the antenna.

NOTE The key numbers shown below in parentheses refer to figure 1-5.

f. Motor-Generator. The motor-generator consists of an azimuth amplidyne (4) and an elevation amplidyne (2), six capacitors ( 1), and two terminal boards (3). The amplidynes supply power to the antenna azimuth and elevation positioning systems. The capacitors are connected in parallel across the three-phase amplidyne motor .

input windings

of each

NOTE The key numbers shown below in parentheses refer to figure 1-6.

(1) Control-indicator panel. The control-indicator panel contains the controls and indicators necessary for local operation. It consists of three replaceable modules : a range indicator (3), a sweep generator (22), and a radar set control (21). The range indicator is an A-scope CRT which displays target range during local operation. The sweep generator provides the sweep voltages necessary for operation of the range indicator. The radar set control contains the switches, meters, and indicators required for local operation of the IROR. A communication station ( 1) is included to provide communication with other units of the improved HAWK system battery.

(2) Amplifier-computer. The amplifier - computer contains eight replaceable modules, seven of which are mounted on the front of the panel. The front panel modules include an amplifier-computer test set (6 ), an azimuth parallax computer ( 5 ) , elevation parallax computer (8 ) , two computer controls , A and B (4 and 9) , an elevation control amplifier ( 19), and an azimuth control amplifier (20). The eighth module is a gas tube starter which is mounted behind the amplifier-computer panel. The amplifier-computer test set provides a convenient and rapid means of evaluating the condition of the parallax computing and amplifying circuits as well as the pedestal synchro system . The

2 1-Capacitors 2-Elevation amplidyne

MI 65296

3-Terminal boards 4-Azimuth amplidyne

Figure 1-5. Motor-generator.

1-5

C9

TM 9-1430-529-12-1

6

8

7

9 10

11

131

4 5

127

10213

14500

WARNING

22

21

1-Communication station 2-Control- indicator panel 3-Range indicator 4-Computer control A 5-Azimuth parallax computer 6-Amplifier-computer test set 7-Amplifier-computer

20

19

18

17

16

8-Elevation parallax computer 9 Computer control B 10-100-Vdc voltage regulator 11-Low-voltage power supply 12-100-Vdc voltage regulator 13-250-Vdc voltage regulator 14-Power distribution panel

15

MI

65297A

15-300-Vdc voltage regulator 16-100-Vdc voltage regulator 17-250-Vdc voltage regulator 18-Balance selector panel 19-Elevation control amplifier 20-Azimuth control amplifier 21 -Radar set control 22-Sweep generator

Figure 1-6. Radar set group components. parallax computers and computer controls furnish the parallax correction signal to the antenna positioning systems. The control amplifiers function in conjunction with the antenna drive circuits.

designated adjustment knobs also located on this panel. Included are meters for monitoring radiation time, total running time, and line voltage. h. Trailer. The trailer is a type M514, one-ton, two-wheel vehicle equipped with a tow bar and lunette for coupling to a prime mover. Three crank-

(3) Low-voltage power supply. The low-voltage power supply ( 11 ) contains six identical voltage regulators, and a balance selector panel . The lowvoltage power supply furnishes both regulated and unregulated dc voltage to the IROR circuits . The regulator portion includes two 100-vdc regulators ( 12 and 16 ) , two 250-vdc regulators ( 13 and 17), one 300-vdc regulator ( 15 ) and a -100-vdc regulator ( 10) . The balance selector panel ( 18 ) contains the monitoring and fusing devices for these regulators.

(4) Power distribution panel. The power distribution panel ( 14) is located on a hinged door at the extreme right side of the radar set group and contains all the circuit breakers for the IROR. Receiver functions are monitored at a test meter located on this panel, and corresponding corrections are made through the use of appropriately

1-6

operated jacks are used for leveling and supporting the IROR. Complete information on trailer M514 is contained in TM 9-2330-235-14.

1-8. Functional Description The IROR is a pulse-type radar. It is used to determine target range in the event either of the two battery improved high- powered illuminator radars is subjected to electronic countermeasures (jamming). The IROR is also capable of functioning as a passive device. In this mode, the IROR acts only as a receiver and does not radiate rf energy. Any jamming signals which are of the same frequency as the IROR transmitter are detected under this condition and displayed on the range indicator in the improved battery control central (IBCC) .

C10

TM 9-1430-529-12-1

1-9. Data

Elevation

This paragraph contains physical data for the IROR. For operating data , refer to TM 9-1425525.

C.

а.

1580 to 1620 mils -158 to -198 mils

Trailer. M514 4.34 m

Type

Length

IROR (trailer mounted).

Width

( 14 ft 3 in . ) 2.39m

Weight Tire size

(7 ft 10 in . ) 2430 lbs 900 x 20

5090 lbs

Gross weight Height : Antenna in stowed position

2.34 m (7 ft 8 in . ) .... 3.07 m

Antenna upright

Tire pressure : (10 ft 1 in . ) Length : Antenna in stowed position

Antenna upright Width ......

50 psi 45 psi 30 psi

Highway Cross country 4.45 m (14 ft 7-1 /2 in .) 4.34 m

Mud, sand , snow Brakes

Air-over-hydraulic

(14 ft 3 in . ) 2.39 m 1-10.

(7 ft 10 in . ) Maximum slope emplacement .... .... 10 degrees 4.93 m Diameter of circle of emplacement

Modification Work Orders

Table

1-1

lists

all modification work orders

(MWO's ) affecting the IROR. (16 ft 2 in . ) b.

Antenna.

Reflector type

NOTE

Parabolic with fixed feed

Reflector diameter Mechanical limits :

122 cm (48 in . ) None

Azimuth

MWO's are listed in this manual for information only . This manual is not an authority for requisitioning kits. The published MWO , or a change thereto , is the only authority for requisitioning MWO kits.

Table 1-1. Modification Work Orders MWO

Effectivity

Description

9-1425-525-50-1

Replaces transistor voltage regulator with a zener voltage regulator.

Communication stations 10677377.

9-1425-525-50-2

Replaces communication stations zener voltage regulator.

Communication stations 10677377 and 10288711 .

9-1430-529-50-1

Replaces TR tube and eliminates keep-alive power supply.

IROR with 430000.

serial

numbers

275001 through

1-7

TM 9-1430-529-12-1

CHAPTER 2

OPERATING INSTRUCTIONS

Section I. CONTROLS AND INDICATORS 2-1 . General

2-2. Controls and Indicators The controls and indicators are listed in tabular

This section provides sufficient information concerning the controls and indicators of the IROR to

form in tables 2-1 through 2-7, and are shown in figures 2-1 through 2-7. Placarded items are in-

permit local operation by authorized personnel .

dicated by upper- case letters.

2 3

5 6 7 8 9 10

-11 12 WARNING

29.

-13

28

2220

-14 -15

27

-16

26 25 2423

.17 -18

00

-19

20 22-

21

MI 65298

Figure 2-1. Control-indicator panel-controls and indicators.

2-1

TM 9-1430-529-12-1

Table 2-1. Control-Indicator Panel Key

C4

Controls and Indicators (Fig. 2-1)

Function

Control or indicator

1

Range indicator A- scope

Displays the target range and associated range marks.

2

FOCUS control

Adjusts the range indicator display for maximum definition.

3

INTENSITY control

Adjusts the intensity of the display on the range indicator.

4

VIDEO control

Adjusts the target video amplitude on the range indicator.

5

VERT POS control

Positions the range indicator sweep vertically.

6

ASTIG control

Reduces the distortion of the range indicator display.

7

RANGE MK control

Adjusts the amplitude of range marks displayed on the range indicator.

8

SWEEP LENGTH control

Adjusts the sweep length on the range indicator.

9

HOR POS control

Positions the range indicator sweep horizontally.

EXPAND-NORMAL switch

EXPAND -- Provides one quarter of the normal display on the range indicator.

10

NORMAL - Provides entire display on the range indicator. 11

EXP RANGE control

Selects the portion of the range indicator display to be viewed in the EXPAND position.

12

23

FREQUENCY meter

Provides a related indication of the transmitting frequency.

13

AZIMUTH HUNDREDS OF MILS indicator

Indicates the azimuth position of the antenna in mils.

14

FREQUENCY switch

INCREASE

15

INCREASE-DECREASE control

Adjusts the 416 vac applied to the magnetron high-voltage power supply.

16

35

Azimuth handwheel

Positions the antenna in azimuth.

17

ANTENNA-LOAD switch

LOAD Directs the magnetron pulse generator output to the high-powered dummy load.

Increases the transmitting frequency.

ANTENNA - Directs the magnetron pulse generator output to the antenna. S. T. C. switch

Energizes the sensitivity time control circuit .

19

D. B. B. switch

Energizes the detector back bias circuit.

20

LOCAL- REMOTE switch

Permits the IROR to be operated either locally or remotely.

21

RADIATE lamp

When illuminated , indicates that the high-voltage interlock circuit is closed and that the RADIATE - STANDBY switch is in the RADIATE position.

22

READY RADIATE lamp

When illuminated , indicates that the high-voltage interlock cir- · cuit is closed.

23

RADIATE-STANDBY switch

Controls the 28- vde supply to the high-voltage contactor.

24

ON-OFF switch

Controls the local 28-vdc supply.

25

LOCAL lamp

When illuminated, indicates that the ON-OFF switch is in the ON position, the LOCAL- REMOTE switch is in the LOCAL position, and the 28-vdc power supply is energized.

26

MAGNETRON CURRENT meter

Indicates current drawn by the magnetron pulse generator.

27

Elevation handwheel

Positions the antenna in elevation.

28

REMOTE-SCOPE pushbutton switch

Permits viewing of the display on the range indicator when the IROR is in REMOTE. Indicates the present elevation position of the antenna in mils.

ã 2 2

18

22 ≈22

29

29

2-2

ELEVATION HUNDREDS OF MILS indicator

TM 9-1430-529-12-1

2

3

4 5

6

7 CAROU -8

22

22

211

10

-11 20-

12 19

1

13

18

14 17 15 16 MI 65299 Figure 2-2. Amplifier-computer-controls and indicators.

Table 2-2. Amplifier- Computer-Controls and Indicators (Fig. 2-2)

Key

Control or indicator

Function

1

ERROR meter

Permits monitoring of the functions selected by the TEST switch.

2

TEST switch

NORMAL - No function is monitored. ZERO Compares the output of the parallax computers and control amplifiers against a known reference.

STATIC - Compares the output of the antenna servo-mechanism system against a known reference at a predetermined azimuth and elevation. DYNAMIC - Checks the balance of the antenna servo-mechanism system by comparing the servo system output against a known reference during a dynamic condition.

3

ERROR switch

COMPUTER EL - Permits monitoring of computer elevation error and elevation parallax. COMPUTER AZ - Permits monitoring of computer azimuth error and azimuth parrallax.

2-3

TM 9-1430-529-12-1

Table 2-2. Amplifier- Computer-Controls and Indicators (Fig. 2-2) —Continued Control or indicator

Key

Function

4

AMPLIDYNE FIELD CURRENT meter

Monitors the azimuth or elevation motor-generator field currents.

5

TEST lamp

Illuminates when the TEST switch is set to ZERO, STATIC, or DYNAMIC.

6

AMPLIDYNE FIELD CURRENT switch

AZ - Permits monitoring of the azimuth motor- generator field currents.

EL - Permits monitoring of the elevation motor-generator field currents. 7

AMPLIDYNE FIELD CURRENT meter

Monitors the azimuth or elevation motor-generator field currents.

8

HIGH ERROR lamp

Illuminates when an excessive azimuth and/or elevation pointing error exists .

9

STATIC ADJUST control

Adjusts the amplitude of the distance/range signal in the elevation parallax circuits.

10

Elevation parallax indicator dial

Indicates elevation angular parallax, referenced to the illuminator radar.

11

CLUSTER ADJUST handwheel

Permits orientation of the parallax circuits referenced to illuminator radar (B).

1227

METERS dial

Indicates the setting of the DISTANCE TO ILLUM handwheel (13 below).

13

DISTANCE TO ILLUM handwheel

Permits setting, in the parallax circuits, of the IROR-to-illuminator (B) distance.

14

AMPLIDYNE FIELD CURRENT ADJUST control

Permits adjustment of the elevation motor-generator field current.

15

STATIC ADJUST control

Permits adjustment of the illuminator elevation error signal.

16

AMPLIDYNE FIELD CURRENT ADJUST control

Permits adjustment of the azimuth motor-generator field current.

17

STATIC ADJUST control

Permits amplitude adjustment of the azimuth pointing error signal .

18

DISTANCE TO ILLUM handwheel

Permits setting, in the parallax circuits , of the IROR-to- illuminator (A) distance.

19

METERS dial

20

CLUSTER ADJUST handwheel

Indicates the setting of the DISTANCE TO ILLUM handwheel (18 above) . Permits orientation of the parallax circuits referenced to illuminator radar (A).

2222

21

2-4

Azimuth parallax indicator dial

Indicates azimuth parallax, referenced to the illuminator radar.

STATIC ADJUST control

Adjusts the amplitude of the distance- range signal in the azimuth parallax circuits.

TM 9-1430-529-12-1

C10

(N)(SEE NOTE) (M )(SEE NOTE )

POWER ON

PWR

OFF

VOL

ON

·VOLY Oi RING

EMERGENCY

OFF

FUSA

FUSA

IA125V

1A2 8V L

‫ال‬

NOTE : REFER TO APPENDIX E FOR SERIAL NUMBER EFFECTIVITY.

MS 166238

Figure 2-2.1. Communication station - controls and indicators.

Table 2-2.1 .

Key

I

Communication Station - Controls and Indicators (Fig. 2-2.1)

Control or indicator

Function

1

VOL control

Adjust the volume level in the headset.

2

RING switch

Enables the IROR to call any selected interbattery communication unit.

3

POWER switch * ( N)¹ PWR switch * (M ) ¹

Applies 28 vdc to the unit.

4

1A125V fuse * ( N ) ¹ 1A28V fuse * (M ) ¹

Provides circuit overload protection

5

Connector J1

Provides connection for a headset.

6

Sonalert

Provides an audible tone to alert the IROR operator of an incoming call .

Refer to ap pendix E for serial number effectivit . y

2-4.1

TM 9-1430-529-12-1

1 2 000

3

5

31

6 30

7 29

8

28 27 26

10 25

11 24

12 23

13

22

21

20

19 18 17 16 15 14 MI 65300

Figure 2-3. Low-voltage power supply-controls and indicators.

2-5

TM 9-1430-529-12-1

Table 2-3. Low - Voltage Power Supply-Controls and Indicators (Fig. 2-3)

Key

Control or indicator

Function

NOTE The indicators described in 1 through 3 below are identical for voltage regulators A1 through A6. 1

1/2A DEL. fuse

When illuminated , indicates a burned-out fuse.

2

1A DEL. fuse

When illuminated, indicates a burned-out fuse.

3

FAIL IND. lamp

When illuminated , indicates excessive voltage rise.

4

F10 1A DEL. fuse

When illuminated , indicates a burned-out fuse.

5

F11 1A DEL. fuse

When illuminated, indicates a burned-out fuse.

6

F12 1A DEL. fuse

When illuminated , indicates a burned-out fuse.

7

F13 1A DEL. fuse

When illuminated , indicates a burned-out fuse.

8

F14 1A DEL. fuse

When illuminated , indicates a burned-out fuse.

9

F15 1A DEL. fuse

When illuminated , indicates a burned-out fuse.

10

F16 1/2A DEL. fuse

When illuminated, indicates a burned-out fuse.

11

F17 1 /2A DEL. fuse

When illuminated, indicates a burned-out fuse.

12

23

F18 1 /2A DEL. fuse

When illuminated , indicates a burned-out fuse.

13

A6 control

Permits adjustment of the 300 vdc.

14

A5 control

Permits adjustment of the 250 vdc (A).

15

A4 control

Permits adjustment of the 250 vdc (B).

16

BALANCE SELECTOR switch

Permits selection of Al through A6 voltage regulators to be monitored on BALANCE meter.

17

A3 control

Permits adjustment of the 100 vdc (A).

18

A2 control

Permits adjustment of the 100 vdc (B).

19

A1 control

Permits adjustment of the 100 vdc.

20

PWR ON lamp

When illuminated , indicates that low-voltage power supply is operating.

21

2

1A DEL. fuse

When illuminated, indicates a burned-out fuse.

22

2 2 2 2 2 2 2

BALANCE meter

Indicates the outputs of the low-voltage power supplies.

23

F1 3A DEL. fuse

When illuminated , indicates a burned-out fuse.

24

F2 3A DEL. fuse

When illuminated, indicates a burned-out fuse.

25

F3 3A DEL. fuse

When illuminated, indicates a burned-out fuse.

26

F4 1A DEL. fuse

When illuminated , indicates a burned-out fuse.

27

F5 1A DEL. fuse

When illuminated, indicates a burned-out fuse.

28

F6 1A DEL. fuse

When illuminated, indicates a burned-out fuse.

29

2

F7 1A DEL. fuse

When illuminated, indicates a burned-out fuse.

30

F8 1A DEL. fuse

When illuminated, indicates a burned-out fuse.

2

F9 1A DEL. fuse

When illuminated, indicates a burned-out fuse.

31

2-6

63 C9

TM 9-1430-529-12-1

3 23

5 22 2288

21.

879

20. 19.

6

18

17 16 15

8

14

9

10

13 11

122

WARNING 416 VOLTS ONTERMINALS WHEN DOOR IS OPEN

MI 65301A Figure 2-4. Power distribution panel-controls and indicators.

2-7

TM 9-1430-529-12-1

Table 2-4. Power Distribution Panel - Controls and Indicators (Fig . 2-4)

Key

Control or indicator

Function

1

RADIATION TIME meter

Indicates the operational time of the magnetron pulse generator.

2

TOTAL TIME meter

Indicates the operational time of the IROR.

3

LINE VOLTAGE meter

Permits monitoring of PHASE 1, PHASE 2, or PHASE 3 voltage selected by the LINE VOLTAGE switch.

4

LINE VOLTAGE switch

Permits selection of PHASE 1 , PHASE 2, or PHASE 3 voltage to be monitored on the LINE VOLTAGE meter.

5

TEST switch

Permits selection of receiver functions to be monitored on the TEST meter.

6

R/T & MOD. circuit breaker

When in the ON position, supplies operating voltage (34, 400 Hz, 115v) to the modulator power supply and receiver-transmitter.

7

R. S. G. BLOWERS circuit breaker

When in the ON position, supplies operating voltage (34 , 400 Hz, 115v) to the radar set group blowers.

8

IND. K. V. circuit breaker

When in the ON position, supplies voltage (34, 400 Hz, 115v) to the control-indicator panel.

9

L. V. P. S. PLATE circuit breaker

When in the ON position, supplies operating voltage (34, 400 Hz, 416v) to the low-voltage power supply.

10

EL-AMPLIDYNE circuit breaker

When in the ON position, supplies operating voltage (34, 400 Hz, 416v) to the elevation amplidyne through amplidyne relay K3.

11

MAIN POWER circuit breaker

When in the ON position , supplies operating voltage (34, 400 Hz, 416v) to the IROR.

12

MOD PLATE circuit breaker

When in the ON position , supplies operating voltage (34, 400 Hz, 416v) to the modulator power supply.

13

AZ-AMPLIDYNE circuit breaker

When in the ON position, supplies operating voltage (34, 400 Hz, 416v) to the azimuth amplidyne through amplidyne relay K4 .

14

L. V. P. S. FIL. circuit breaker

When in the ON position, supplies operating voltage ( 14, 400 Hz, 115v) to the low voltage power supply.

15

SERVO FIL. circuit breaker

When in the ON position, supplies operating voltage ( 14, 400 Hz, 115v) to the amplifier computer.

16

IND. FIL. circuit breaker

When in the ON position, supplies operating voltage ( 14, 400 Hz, 115v) to the control-indicator panel.

17

S. P. O. circuit breaker

When in the ON position, supplies operating voltage ( 14, 400 Hz, 115v) to convenience outlets on the power distribution panel and pedestal.

18

NOISE FIGURE SET control

Controls the TEST meter setting for the SET position which is indicative of the receiver's inherent noise.

19

2222

IF GAIN control

Controls the gain of the IF preamplifier.

20

CRYSTAL CURRENT control

Controls the amplitude of the local oscillator output.

21

R. F. POWER meter

Indicates the magnetron pulse generator's average output power.

TEST meter

Monitors receiver functions selected by the TEST switch.

23

RECEIVER TEST P16 /W25P11 connector

Test connector used during transmitter and modulator- power supply tests.

2-8

TM 9-1430-529-12-1

1

MI 65302 Figure 2-5. Receiver- transmitter-controls and indicators.

Table 2-5. Receiver- Transmitter-Controls and Indicators (Fig. 2-5)

Key

1

Control or indicator

ATTENUATOR CONTROL switch

Function

Permits routing of the ferrite attenuator control output. AUTO - Routes the ferrite attenuator output to the local oscillator coupler.

FIXED - Causes the ferrite attenuator to ground the local oscillator output . 2

WAVEMETER INDICATOR meter

Indicates the frequency of the magnetron pulse generator.

3

SYSTEM TRIGGER switch

Permits the routing of the system trigger.

TEST - Removes the system trigger from the magnetron assembly. OPERATE - Permits the system trigger to flow to the magnetron assembly.

4

Pressure gage

Monitors the air pressure in the waveguide system.

2-9

TM 9-1430-529-12-1

2

6

3

5 MI 65303

Figure 2-6. Modulator-power supply-controls and indicators.

Table 2-6. Modulator-Power Supply-Controls and Indicators (Fig. 2-6) Control or indicator

Key

Function

1

Safety interlock switch

Permits override of the interlock circuits for maintenance inside the modulator power supply.

2

RECT CURRENT meter

Indicates the current drawn by the magnetron power circuits.

3

SHUNT CURRENT meter

Indicates the current drawn by the pulse forming network .

4

MAG CURRENT meter

Indicates the current drawn by the magnetron pulse generator.

5

KILOVOLTS meter

Indicates the high voltage from the magnetron power circuits.

6

WARNING lamp

When illuminated, indicates the radar is energized.

2-10

TM 9-1430-529-12-1

108 hands the

7

TY

STEN

SAFE

ON OFF

Sert

5

ON MAIN POWER

MI 65304

Figure 2-7. IROR-Miscelleneous controls and indicators.

Table 2-7. IROR- Miscellaneous Controls and Indicators (Fig. 2-7)

Key

Control or indicator

Function

1

ELEV STOW lock

When engaged, locks the antenna at a fixed elevation and opens elevation microswitch S5 in the rotating head assembly.

2

Elevation indicator

Indicates the elevation angle of the antenna in mils.

3

AZIMUTH STOW lock

When engaged, locks the antenna at a fixed azimuth and opens azimuth microswitch S4 in the pedestal and drive assembly.

4

Antenna SAFETY SWITCH

Disables the antenna by cutting off the 28 vdc supplied to the motor-generator contactors.

5

MAIN POWER switch

Controls the main power (416 ) to the IROR.

6

Azimuth indicator

Indicates the azimuth bearing of the antenna in mils.

7

Humidity indicator

Indicates the presence of the moisture in the waveguide system.

2-11

TM 9-1430-529-12-1

C13

Section II. OPERATION UNDER USUAL CONDITIONS

2-3. General

2-4. Normal Operation

This section provides procedures for normal operation of the IROR. Prior to operation , it is assumed that the IROR has been emplaced, oriented and alined, and the organizational check

Under normal conditions, the IROR is unattended during operation . All operating functions are remotely controlled from the IBCC.

procedures performed.

Section III. OPERATION UNDER UNUSUAL CONDITIONS 2-5. General

temperatures as low as -31.7°C (-25° F ) for a minimum of three days without the benefit of solar

The IROR is capable of efficient operation within the design limitations contained in paragraphs 2-6 through 2-11 below. For emergency

radiation .

b. The IROR is capable of normal operation in operation under conditions beyond the design limitations, develop and employ local standing operating procedures for maximum protection of the materiel.

ambient temperatures as high as 41 ° C ( 105 ° F) at a minimum exposure of 4 hours . In addition , the materials used in the construction of the IROR are inert to , or protected from, the effects produced by exposure to fungi , bacteria , and insects .

2-6. Wind The IROR is capable of normal operation in steady winds of 64.4 km/hr ( 40 mph ) and in gusts up to 80.5 km /hr ( 50 mph ) . Normal operation is not degraded by accompanying sand, dust, or snow.

2-8. Barometric Pressure The IROR can be operated satisfactorily at atmospheric pressures encountered from sea level up to 3.05 km ( 10,000 feet ) above sea level, and is

NOTE Perform the following steps for increased stability of the radar set during high winds 75 km/hr (46.6 mph) or greater.

capable of withstanding the pressure encountered at 7.625 km ( 25,000 feet ) above sea level for a period of not more than twelve hours.

2-9. Operation in High Humidity

a. Deenergize the radar. The IROR is capable of normal operation at 100

b. Stow all loose equipment. c. Close all vent and access doors.

d. Secure the protective shipping cover on the antenna . e. Engage the elevation stow lock.

percent relative humidity at all temperatures not greater than 32°C ( 90°F ).

2-10. Operation in Proximity to Salt Water The IROR is capable of withstanding the effects produced by exposure to salt- sea atmospheric conditions as encountered at a beach location.

f. Disengage the azimuth stow lock . g. Lower the leveling jacks until the weight of the radar set is equally distributed between the jacks and the wheels. h. Place sandbags or other weights across the jack pads (use a minimum of 600 pounds per jack) or tie the trailer securely to four 1.52 m ( 5-ft ) ground anchors.

2-11. Fording Operations The IROR is capable of fording operations and complete immersion in water. To prevent damage to the IROR during fording or immersion operations, all cabinet covers and vents must be closed and secured, and all case drains secured. After fording operations, all case drains must be opened to permit drainage of any water which may have

2-7. Extreme Cold or Hot Weather Operation a. The IROR is capable of effective operation at 2-12

accumulated. The IROR should then be thoroughly inspected to insure that no damage has occurred to any units during fording or immersion operations.

C12

TM 9-1430-529-12-1

CHAPTER 3 PERIODIC CHECKS AND ADJUSTMENTS

Section I.

3-1 .

PREVENTIVE MAINTENANCE CHECKS AND SERVICES

General

3-5 .

Preventive Maintenance Checks and Services

a.

These checks and services are to be per-

The purpose of preventive maintenance is to detect the first signs of electrical and mechanical failures, and to insure that appropriate corrective action is taken before expensive and time- consuming repairs or replacements are required . This system is based on frequent inspections and services accomplished by operators or maintenance

formed by the organizational maintenance mechanic and the operator. Only those procedures beyond the responsibilities of the operator will be performed by the mechanic. The battery maintenance supervisor will determine the specific areas

personnel under active supervision by all commanders and supervisors .

of responsibility. b.

3-2 .

Responsibility

Operators and crew chiefs are personally responsible for assigned materiel. Section and platoon leaders are charged with supervisory responsibility for materiel pertaining to their commands . Unit and organization commanders are required to insure that materiel issued or assigned to their commands is properly maintained.

| 3-3.

Intervals

The principal criteria for determining the frequency of preventive maintenance services are operating hours and road movement . Since these cannot be accurately predicted , prescribed intervals will be used. Operation under adverse conditions such as extreme temperature or inclement weather may require that preventive maintenance services be performed more frequently . Reduce the intervals when environmental conditions indicate the need . Do not exceed the intervals unless authorized to do so.

Preventive maintenance checks are a systema-

tic inspection of the IROR performed at prescribed intervals and after each time it is emplaced so that defects may be discovered and corrected before they result in serious damage or failure. c. Weekly checks are to be performed before doing the monthly checks , etc. d.

If the equipment must be kept in continuous

operation, check and service only those items that can be checked and serviced without endangering personnel and without disturbing operation. Make the complete checks and services when the equipment can be shut down. e. Report any deficiencies using the proper forms (see TM 38-750) . Any defects noted that are beyond the scope of the organizational maintenance mechanic will be reported immediately to the maintenance supervisor. f. The specific checks and services for the IROR are listed in table 3-1. The personnel responsible for performing the checks and services at the various intervals are as follows : Interval

3-4.

General Procedures for All Services and Inspections

Refer to TM 9-1425-525-12-4 for information on general procedures for all services and inspections .

Hourly Weekly Monthly Quarterly 120- Day Semiannually Annually

Responsible Personnel " Operator Operator, organizational Operator, organizational Operator, organizational Direct Support Operator, organizational Operator, organizational

3-1

TM 9-1430-529-12-1

H - Hourly W = Weekly Item No.

Interval D HW M Q│Y│S│A

C16

Table 3-1. ROR Preventive Maintenance Checks and Services DY - Days M - Monthly Q = Quarterly

Item to be inspected General inspection

A - Annually

S - Semiannually Procedures: Check for and clean have adjusted, repaired or replaced as required

Forreadiness reporting equipment is not ready/ available if:

During normal operation , inspect exterior surfaces for dirt , rust , and corrosion. Check equipment for loose or missing hardware , broken meter faces, chipped paint, loose connections , defective insulation , and improper type fuse holders .

1.

Equipment Cabinets

Check for moisture and dry as required (TM 9-1425-525-12-4)

2.

Waveguide pressurization hose and fittings

Loose connections and defective insulation (par. 4-11) .

3.

Air filters

Dirt, corrosion, damage (TM 9-1425-525-12-4)

4.

Humidity indicator

For pressurization unit 11566317 * (Q) ¹, at any slight indication of color change in the sight indicator, replace the dehydrator cartridges. Refer to paragraph 4-8.1. For pressurization unit 10043943 *(P)¹, at any slight indication of color change in the desiccant, replace the desiccant in the humidity indicator and in the dehydrator cartridge. Refer to paragraphs 4-8 and 4-8.2

Pressurized microwave system components

Inspect for leaks (par. 4-11 )

6.

Radar set

Lubricate at designated intervals (Chapter 4, section IV and LO 9-1430-529-12) .

7.

Trailer M514

Lubricate and perform preventive maintenance services (TM 9-2330-235-14)

8.

Pedestal drive assembly

Check the azimuth and elevation gear assembly backlash (pars. 4-6 and 4-7) .

9.

Motor generator

Inspect brushes for excessive wear and arcing after the first 100 hours and every 500 hrs thereafter (par. 4-10) .

10.

Panel meters

Have DS maintenance perform periodic test procedures every 120 days (TM 9-4935-548-14)

11.

Pedestal sliprings

Inspect and clean semi-annually, or when sliprings are suspected of causing a malfunction such as excessive video noise (par. 4-9)

12.

Pedestal brushes

Inspect for excessive wear (par 4-9)

13.

Azimuth and Inspect semiannually for excessive wear and arcelevation drive motor ing. Replace every 2500 hours or annually, brushes whichever occurs first . (par. 4-9.1 )

14.

Elevation drive motor air filter

Inspect and clean as required (TM 9-1425-525-12-4)

15.

High-voltage power supply diodes CR7 thru CR10

Clean all traces of dust to prevent arcing. In extremely dusty conditions perform at more frequent intervals as required.

16.

Pressurization Unit safety relief valve

Have DS maintenance perform the nitrogen test procedures upon installation and annually thereafter.

17.

Radar set

Perform weekly check procedure

23

5.

¹Refer to appendix E for serial number effectivity. 3-2

Weekly check procedures cannot be performed.

C12

TM 9-1430-529-12-1

3-6 through 3-9 Deleted

Table 3-2 through 3-5 deleted.

Section II.

OPERATIONAL CHECKS

3-10. General

This section contains the energizing, deenergizing, and organizational check procedures in tabular form , and all the information necessary to

trols to the positions given in table 3-8 . Controls not listed in table 3-8 may be set to any position as they do not directly affect the energizing procedure. Make certain that the controls are correctly set before the energizing or check procedures are

prepare the IROR for performance of the check procedures .

performed.

3-11 . External Test Equipment Required

3-14. Energizing Procedures

Table 3-6 lists the external test equipment required for performing the daily and weekly check procedures.

The energizing procedures for the IROR are contained in tables 3-9 and 3-10 . When performing the daily and weekly check procedures , the procedures in tables 3-9 and 3-10 need not be performed

3-12. Procedures Prior to Application of Power

because they are included as integral parts of the check procedures .

WARNING Table 3-6.

External Test Equipment Required

Procedures

Make certain that the IROR is emTest equipment placed in accordance with instructions contained in chapter 7.

Before applying power to the IROR, perform the procedures contained in table 3-7 .

Stopwatch Cable W25 ( 10110444 ) Cable W26 ( 10106498 ) Digital Multimeter 10177187 Multimeter AN/ PSM-6

Daily

Weekly

X X

X X X X X

3-13. Position of Controls Prior to Application of Power Before applying power to the IROR, set the con-

3-3

TM 9-1430-529-12-1

C10 Table 3-7.

Procedures Prior to Application of Power

Illustration

Control or assembly

Position or operation

Figure

Key

3-2

5

Radar set group door

Open and lock

3-1

8

Modulator-power supply air vent drawer

Open and secure only when ambient temperature exceeds 38° C ( 100° F )

3-1

1

Receiver-transmitter air vent drawer

Open and secure

2-7

1

ELEV STOW lock

Unlock

2-7

3

AZIMUTH STOW lock

Unlock

3-1

4

Antenna pedestal air vent lever

Push to OPEN

3-2

8,9

Motor-generator air exhaust doors

Open and secure

3-1

6

Motor-generator air intake door

Open and secure

3-2

7

Motor-generator air intake door

Open and secure

3-1

7

Radar set group air exhaust door

Open and secure

3-2

6

Radar set group air intake door Radar set group drawers and subassemblies Power and data cables Radar

Open and secure Close and secure Connect and secure Level in accordance with Chapter 7

Table 3-8.

Position of Controls Prior to Application of Power

Illustration Location

Figure

Control

Control setting

Key

2-7

4

2-4

5 4

Antenna pedestal Cable entry panel Power distribution panel

5 14 15 16 17 6 7 8 13

LINE VOLTAGE switch

SAFE OFF OFF

TEST switch L. V. P. S. FIL. circuit breaker

OFF OFF

SERVO FIL. circuit breaker IND. FIL. circuit breaker

OFF OFF OFF

SAFETY SWITCH MAIN POWER switch

S. P. O. circuit breaker R/T & MOD. circuit breaker R. S. G. BLOWERS circuit breaker IND . K. V. circuit breaker AZ-AMPLIDYNE circuit breaker

10 9 12

EL-AMPLIDYNE circuit breaker

11

MAIN POWER circuit breaker BALANCE SELECTOR switch

2-3 2-2

16 2

2-1

10

20 24 23 15 18 19

3

L. V. P. S. PLATE circuit breaker MOD PLATE circuit breaker

Low-voltage power supply Amplifier-computer panel Control-indicator panel

TEST switch EXPAND/NORMAL switch LOCAL-REMOTE switch ON-OFF switch RADIATE -STANDBY switch INCREASE-DECREASE control S. T. C. switch

OFF OFF

OFF OFF OFF OFF OFF OFF

OFF NORMAL NORMAL LOCAL OFF STANDBY

Fully ccw OFF

D. B. B. switch

OFF

INTENSITY control

Fully ccw

3-5

C16

TM 9-1430—529—12—1 Shutdown to Standby.

Table 3-9 . Energizing Procedure

Step

Procedure

1.

Insure that all intake and exhaust vent doors are open, and that all assemblies and subassemblies are closed and securely fastened .

2.

Open the receiver-transmitter door ( 13 , fig. 3-2 ) .

3.

Set the SYSTEM TRIGGER switch ( 3 , fig. 2-5 ) to OPERATE .

4.

Set the ATTENUATOR CONTROL switch ( 1, fig. 2-5) to AUTO.

5.

Set the MAIN POWER switch ( 5, fig. 2-7) to ON.

6.

Set the following circuit breakers ( fig. 2-4) to ON : IND. KV , R. S. G. BLOWERS, L. V. P. S. PLATE, MAIN POWER, MOD PLATE , R/ T & MOD , S. P. O., IND , FIL, SERVO FIL, L. V. P. S. FIL.

6.1.

Normal indication

Set the LINE VOLTAGE switch (4, fig. 2-4) to PHASE 1 , PHASE 2, and PHASE 3.

7.

Set the LINE VOLTAGE switch to OFF .

8.

Set the ON-OFF switch ( 24 , fig. 2-1 ) to ON .

The LINE VOLTAGE meter indicates 228 to 252 vac.

The LOCAL lamp ( 25 , fig . 2-1 ) illuminates, the PWR ON lamp ( 20, fig. 2-3 ) illuminates after 30 seconds, and the waveguide pressure gage (8, fig. 3-3 ) indicates 18 to 22 psi. The blowers in the receiver-transmitter, modulatorpower supply, and antenna pedestal begin to operate. The blower in the radar set group operates correctly.

9.

Check that no indicator fuses and FAIL IND lamps (3, fig. 2-3 ) are illuminated.

10.

Close the receiver-transmitter door.

11.

Set the BALANCE SELECTOR switch ( 16 , fig. 2-3) to positions A1 through A6.

The BALANCE meter ( 22 , fig. 2-3 ) indicates white line for each position.

12.

Wait 5 minutes for the 5-minute timer relay to activate.

The READY RADIATE lamp ( 22 , fig. 2-1 ) illuminates.

NOTE If the READY RADIATE lamp fails to illuminate after 5 minutes , momentarily place the ON -OFF switch to OFF and quickly back to ON . Then wait 5 minutes.

Table 3-10.

Step

Energizing Procedure - Standby to Radiate Normal indication

Procedure

1.

Open the modulator-power supply door ( 3, fig. 3-2 ) .

2.

Override the safety interlock switch ( 1 , fig. 2-6 ) on the modulator -power supply.

3.

Insure that the READY RADIATE lamp ( 22 , fig. 2-1) is illuminated .

The WARNING lamp ( 6 , fig. 2-6 ) illuminates.

NOTE If the READY RADIATE lamp is not illuminated , momentarily place the ON-OFF switch ( 24, fig. 2-1 ) to OFF and quickly back to ON . Then wait 5 minutes. 4.

3-6

Set the RADIATE- STANDBY switch (23 , fig. 2-1 ) to RADIATE .

The RADIATE lamp ( 21 , fig . 2-1 ) illuminates . The MAGENTRON CURRENT meter indicates 8 to 11.5 ma.

C12

TM 9-1430-529-12-1 Table 3-10.

Energizing Procedure- Standby to Radiate -Continued

Step

Procedure

Normal indication

5.

Adjust the INCREASE - DECREASE control ( 15 , fig. 2-1 ) clockwise.

The MAGNETRON CURRENT meter ( 26, fig. 2-1 ) indicates 16.5 ma. The SHUNT CURRENT meter black needle indicates 20 to 60 μa. The RECT CURRENT meter black needle indicates 0 to 80 μa . The KILOVOLTS meter ( 5 , fig . 2-6 ) indicates 4.8 to 5.6 kv.

6.

Adjust the INCREASE - DECREASE control fully counterclockwise.

7.

Set the RADIATE- STANDBY switch to STANDBY.

8.

Close and secure the modulator-power supply door.

9.

Insure that all personnel are clear of the antenna, then set the antenna SAFETY SWITCH ( 4 , fig. 2-7) to OPERATE .

10.

Set the AZ -AMPLIDYNE circuit breaker ( 13 , fig . 2-4) to ON.

11.

Set the EL-AMPLIDYNE circuit breaker ( 10 , fig. 2-4) to ON.

12 .

Set the RADIATE- STANDBY switch to RADIATE.

13.

Adjust the INCREASE-DECREASE control clockwise until the MAGNETRON CURRENT meter indicates 16.5 ma.

3-15. Normal Operation

into two steps : step 1 contains the procedure to be

Under normal conditions, the IROR is unattended during operation. All operating functions are controlled remotely from the IBCC. To operate the IROR remotely, all controls must be set to the

performed when the IROR is to be placed in the standby condition from the radiate status ; step 2 contains the procedure to be performed when placing the IROR in the shutdown condition from the

positions listed in table 3-8, with the following

standby status. The procedure in table 3-11 is to be performed only when deenergizing the IROR from local operation .

exceptions :

Antenna SAFETY SWITCH to OPERATE . LOCAL-REMOTE switch to REMOTE. MAIN POWER switch to ON. All circuit breakers on the power distribution panel to ON. DECREASE control clockwise INCREASE until MAGNETRON CURRENT meter indicates

16.5 ma.

3-16. Deenergizing Procedure The deenergizing procedure for the IROR is contained in table 3-11 . The procedure is separated

3-17. a.

Daily Check Procedures

Tables 3-12 through 3-18 contain the IROR

daily check procedures .

In a PIP battery, daily

check procedures need not be performed unless the daily integrated system check procedures indicate a failure in the IROR or if maintenance has been performed on the IROR . If the daily check procedures are performed , and a normal indication is not obtained , make certain that the correct procedure has been used before troubleshooting for defective units.

3-7

C13

TM 9-1430-529-12-1 Table 3-11. Procedure

Step

1.

Deenergizing Procedure

Radiate to Standby.

а.

Adjust the INCREASE -DECREASE control (15 , fig. 2-1 ) fully counterclockwise.

b.

Set the RADIATE- STANDBY switch ( 23 , fig. 2-1 ) to STANDBY.

2.

a.

Normal indication

The RADIATE lamp ( 21 , fig. 2-1 ) extinguishes and the READY RADIATE lamp ( 22 , fig. 2-1 ) illuminates.

Standby to Shutdown. Set the ON-OFF switch ( 24 , fig. 2-1 ) to OFF .

The LOCAL lamp ( 25 , fig. 2-1 ) extinguishes . The READY lamp ( 22, fig. 2-1 ) extinguishes.

b.

Set the MAIN POWER circuit breaker ( 11 , fig. 2-4 ) to OFF .

C.

Set the MAIN POWER switch ( 5 , fig . 2-7 ) to OFF .

b. The sample table explains the use and layout of the check procedure tables . Notice that the operations , normal indications, and corrective procedures are alined with their respective headings ,

ings , as indicated in this sample by the vertical arrowed lines. c. All check procedure steps must be performed in the sequence given.

as indicated in this sample by the vertical arrowed lines. d. Before starting the checks, perform the applicable procedures in tables 3-1 , 3-7 and 3-8.

c. All check procedure steps must be performed in the sequence given.

The weekly checks require organizational main-

d. Before starting the checks , perform the applicable procedures in tables 3-1 , 3-7 and 3-8.

tenance personnel with assistance from an operator. A minimum of two men is required for safety

The daily checks require organizational maintenance personnel with assistance from an operator. A minimum of two men is required for safety and During convenience when performing checks.

and convenience when performing checks. During periods of continuous operation , selected checks may be performed more frequently than once a

periods of continuous operation , selected checks may be performed more frequently than once a day to assure that equipment is operating properly.

day to assure that equipment is operating properly .

e. Upon emplacement of the IROR, perform the entire check procedures contained in tables 3-12 through 3-18 .

3-17.1 .

Weekly Check Procedures

a. Tables 3-19 through 3-25 contain check procedures which must be performed on a weekly basis to make certain that the IROR is operating correctly.

If a normal indication is not obtained

f. Although operational tolerances are specified , in many cases during the checks the mechanic should attempt to adjust for optimum operation within these tolerances. "Peaking" within tolerances will provide reasonable assurance that equipment will operate satisfactorily between maintenance services . Operator personnel must be able to

when performing the checks as listed , make certain that the correct procedure has been used before troubleshooting for defective units .

recognize less-than-optimum performance during normal operation and the performance of operator checks. When the corrective action for this perfor-

b. The sample table explains the use and layout of the check procedure tables. Notice that

mance is beyond their capability , they will report it to maintenance personnel. Adjustments are a

the operations , normal indications, and corrective procedures are alined with their respective head-

normal part of the checks and do not necessarily indicate equipment malfunction .

3-8

TM 9-1430-529-12-1

C8

Sample Table Operation

Illustration

Normal indication

Step

Corrective procedure

Key

Figure

4 Check (Step Name) Sequence and step name of the specific check

1. a.

OPERATIO (OPERATION) Sequential operations required to obtain a normal indication.

(NORMAL INDICATION) Normal system or circuit responses.

(CORRECTIVE PROCEDURE) Adjustment listing if applicable.

Table 3-12.

Main Power Daily Checks Illustration

Operation

Step

Normal indication

Corrective procedure 1.

Figure

Key

Check Preparation.

a.

Notify the IBCC personnel that the IROR local checks are ready to begin.

b.

LOCAL-REMOTE switch

C.

Insure that the procedures necessary for the preparation of the IROR for check procedures contained in paragraphs 3-12 and 3-13 have been performed.

LOCAL .

20

2-1

Check Main Power.

a.

Insure that the power cable is connected .

b.

MAIN POWER switch

ON.

2-7

པ་

2.

C.

MAIN POWER circuit breaker

ON.

2-4

11

d.

LINE VOLTAGE switch

PHASE 1 .

5

4

PHASE 2 . PHASE 3.

LINE VOLTAGE meter

228 to 252 vac.

3

Have the power generator output adjusted.

e.

OFF.

LINE VOLTAGE switch

Table 3-13.

Standby and Low- Voltage Power Supplies Daily Checks Illustration

Operation

Step

Normal indication

Corrective procedure 1.

a.

Figure

Key

Check Ready Status. ON-OFF switch

LOCAL lamp

ON. illuminates.

2-1

24 25

3-9

C13

TM 9-1430-529-12-1 Table 3-13.

Standby and Low -Voltage Power Supplies Daily Checks- Continued Illustration

Operation Normal indication

Step

Corrective procedure 1b.

Key

Figure

Set the following circuit breakers and note time.

2-4

14

(1)

L.V.P.S. FIL

ON.

(2)

SERVO FIL

ON.

15

(3)

IND . FIL

ON.

16

(4)

R/T & MOD.

ON.

6

C.

Continue the check procedures while observing the normal indications. The blowers in the modulator-power supply, antenna pedestal, and the receiver-transmitter start operating. Air is drawn into the vent drawers on the receiver-transmitter and the modulator-power supply, and is forced out the exhaust port facing the antenna. The compressor in the pedestal base starts operating. 2-3

20

2-1

22

ON

2-4

7

exhausts air

3-1

7

2-4

PWR ON lamp illuminates after sufficient pressure has accumulated.

READY RADIATE lamp illuminates in 4 to 6 minutes. d.

R.S.G. BLOWERS circuit breaker R.S.G. exhaust door

བ

The compressor operates for not more than 5 minutes, and is then inoperative for at least 15 minutes.

17

e.

S.P.O. circuit breaker

ON.

ƒ.

IND K.V. circuit breaker

ON.

8

g.

L.V.P.S. PLATE circuit breaker

ON .

9

All indicator fuses and FAIL IND lamps 2.

extinguish.

2-3

1, 2 , 3

A1 thru A6.

2-3

16

Check Low-Voltage Regulators .

a.

BALANCE SELECTOR switch

BALANCE meter

22

white line for all positions .

Adjust A1 thru A6 respectively .

b.

BALANCE SELECTOR switch

Table 3-14.

OFF .

Antenna Daily Checks

Illustration

Operation

Step

Normal indication

Corrective procedure 1.

Key

Figure

Check Azimuth.

a.

Insure that all personnel are clear of antenna.

b.

Antenna SAFETY SWITCH

OPERATE .

2-7

4

C.

AZ-AMPLIDYNE circuit breaker

ON.

2-4

13

3-10

TM 9-1430-529-12-1

C8 Table 3-14.

Antenna Daily Checks -Continued Illustration

Operation

Step

Normal indication Corrective procedure

ld. e.

EL-AMPLIDYNE circuit breaker

ON.

TEST switch

NORMAL .

TEST lamp f.

10 2-2

2

2-1

16

extinguishes. rotate clockwise and counterclockwise .

Azimuth handwheel

moves clockwise and then counterclockwise.

Antenna

g.

Key

Figure

Azimuth handwheel

rotate until

13

returns to 0 mils.

AZIMUTH mil indicator

Check Elevation.

2. α.

rotate clockwise and then counterclockwise.

Elevation handwheel

rotate until

Elevation handwheel

29

returns to 0 mils.

ELEVATION mil indicator

3.

27

moves up and then down .

Antenna b.

2-1

Check Azimuth Amplidyne Field Current. AMPLIDYNE FIELD CURRENT switch . AMPLIDYNE FIELD CURRENT meters

AZ .

2-2

6

within 1 scale division of red line. 16

Adjust the AMPLIDYNE FIELD CURRENT ADJUST .

4.

Check Elevation Amplidyne Field Current. AMPLIDYNE FIELD CURRENT switch.

EL.

AMPLIDYNE FIELD CURRENT meters

within 1 scale division of red line. Adjust the AMPLIDYNE FIELD CURRENT ADJUST.

Table 3-15.

2-2

Parallax Circuits Daily Checks Illustration

Operation

Step

Normal indication

Figure

Corrective procedure

1.

14

Key

Check Normal Position. Set the ERROR switch as follows :

ERROR meter indicates as

2-2

3, 1

follows :

a.

EL-COMPUTER

blue area.

b.

AZ-COMPUTER

blue area. 3-11

C13

TM 9-1430-529-12-1 Table 3-15 .

Parallax Circuits Daily Checks - Continued Illustration

Operation

Step

Normal indication Corrective procedure

1c.

EL-ELECTRONIC CONTROL

blue area.

d.

AZ-ELECTRONIC CONTROL

blue area.

2.

Key

Figure

Check Zero Position.

TEST lamp

illuminates.

5

Azimuth parallax computer

0.

21

Elevation parallax computer

0.

10

ERROR meter

blue area for all positions of ERROR switch. 0.

Elevation indicator 3.

2-2

2

ZERO.

TEST switch

2-7

2

2-2

17, 15 22 and 9

Check Static Position.

a.

STATIC.

TEST switch

TEST lamp

illuminates.

Azimuth parallax computer

S.

Elevation parallax computer

S.

Antenna

slews to between 1060 and 1070 mils on elevation indicator and maintains position while in STATIC.

Set the ERROR switch as follows :

ERROR meter indicates as follows :

( 1)

AZ -ELECTRONIC CONTROL

red line.

(2)

EL-ELECTRONIC CONTROL

red line.

(3)

AZ -COMPUTER

red line.

(4)

EL-COMPUTER

red line.

b. ཊུས

In steps 3b ( 1 ) thru ( 4 ) , adjust the appropriate STATIC ADJUST control until the ERROR meter indicates red line.

C.

4.

a.

Repeat steps 3b ( 1 ) thru ( 4 ) until no further adjustments are necessary in any position of the switch.

Check Dynamic Position. TEST switch Antenna

DYNAMIC . completes one diagonal movement in 12 to 16 seconds.

slews minimum 700 mils peak-to-peak in azimuth and elevation.

elevation lower limit -25 to +25 mils. 3-12

C13

TM 9-1430-529-12—1 . Table 3-15.

Parallax Circuits Daily Checks- Continued Illustration

Operation Normal indication

Step

Figure

Corrective procedure 46.

Set the ERROR switch as follows :

ERROR meter indicates as follows:

(1)

EL-COMPUTER

yellow area.

(2 )

AZ-COMPUTER

yellow area.

(3)

EL- ELECTRONIC CONTROL

yellow area.

(4)

AZ -ELECTRONIC CONTROL

yellow area.

Key

In steps 4b ( 1 ) thru ( 4 ) the peak-to-peak flutter of the needle does not exceed 1/4 the total width of yellow area, except immediately following reversal.

C.

TEST switch

NORMAL.

Antenna

returns to the setting of the azimuth and elevation handwheels.

TEST lamp

extinguishes.

Table 3-16.

Transmitter and Modulator-Power Supply Daily Checks Illustration

Operation

Step

Normal indication Corrective procedure

1.

Figure

Key

Check Radiate. MOD PLATE circuit breaker

ON.

2-4

12

b.

INCREASE -DECREASE control

fully counterclockwise.

2-1

15

READY RADIATE lamp

illuminates 5 minutes ± 15 seconds after the ON-OFF

22

325

20

a.

switch is set to ON. Reset the overload stepping relay ( 5A5K9 ) by momentarily placing the ON-OFF switch to OFF, then to ON.

C.

RADIATE-STANDBY switch

RADIATE .

RADIATE lamp

illuminates.

MAGNETRON CURRENT meter...........

d.

INCREASE-DECREASE control MAGNETRON CURRENT meter

e.

FREQUENCY switch

FREQUENCY meter

11.5 ma .

2223

Wait 5 minutes for the READY RADIATE lamp to illuminate.

21

26

clockwise until

16.5 ma.

26

INCREASE or DECREASE until

14

0.

12

3-13

C13

TM 9-1430-529-12-1 Table 3-17.

Range Indicator Daily Checks Illustration

Operation Normal indication

Step

Corrective procedure 1.

Key

Figure

Check Sweep .

a.

Insure that the data cables to the IROR are connected .

b.

INTENSITY control

adjust until

2-1

3

sweep is clearly visible and

Range indicator screen

1

sharply focused. 2, 6

Adjust FOCUS and ASTIG controls.

2.

Check Range Marks.

range marks extend to

Range indicator screen

about 4 inch from the top of the range indicator screen. 7

བ

Adjust the RANGE MK control .

range marks divide the

Range indicator screen

sweep into four equal segments . 3.

Check Video Gain. VIDEO control

4

adjust until 1/4 inch stable grass level.

Range indicator screen

Table 3-18.

Radar Performance Daily Checks Illustration

Operation

Step

Normal indication

Figure

Corrective procedure 1.

Check Automatic Frequency Control (AFC) .

α.

While holding the ANTENNA-LOAD switch in the ANTENNA position, rotate the azimuth and elevation handwheels until the antenna is pointing at a known video return or ground clutter.

b.

FREQUENCY switch FREQUENCY meter

c.

2-1

17

DECREASE until

14

-5.

12

While holding the ANTENNA-LOAD switch to ANTENNA, momentarily set the FREQUENCY switch to INCREASE for each of the following indications on the FREQUENCY meter : -4, -3, -2 , -1 , 0 , +1 , +2 , +3 , +4 and +5 . Video return or ground clutter is present on the range indicator screen at each frequency indication . The video return or ground clutter may disappear as the transmitter is tuned but will reappear within 6 seconds each time tuning stops. Perform the AFC alinement procedures in table 5-2. Perform the magnetron frequency check in table 5-1.

3-14

Key

TM 9-1430-529-12—1

C13 Table 3-18 .

Radar Performance Daily Checks - Continued Illustration

Operation Step

Normal indication

Corrective procedure

ld.

FREQUENCY switch

DECREASE until 0.

FREQUENCY meter 2.

Key

Figure

Check Sensitivity Time Control ( STC ) .

a.

Rotate the azimuth and elevation handwheels to obtain typical short- range ground clutter within range of STC effectiveness .

b.

S.T.C. switch

2-1

ON.

18

The short-range amplitude is below video limiting but above noise level (see waveforms below) .

Lu

Too much S.T.C.

‫سال‬

Correct S.T.C.

Too little S.T.C.

(Below noise level) C.

ANTENNA-LOAD switch

release .

d.

S.T.C. switch

OFF .

3.

a.

Check Detector Back Bias ( DBB ) . VIDEO control Range indicator screen

b.

D.B.B. switch

adjust until noise peaks are ½ the amplitude of the range marks.

ON.

Noise peaks do not decrease in amplitude.

The high intensity concentration of the noise shifts to the baseline over the entire range of the sweep.

C.

D.B.B. switch

OFF .

d.

VIDEO control

adjust until

Range indicator screen

e.

14 -inch grass level.

Inform the IBCC personnel that the IROR checks are completed . When requested by the IBCC personnel to place the IROR in remote operation, refer to paragraph 3-15 .

3-15

TM 9-1430-529-12-1

C13 Table 3-19.

Power Distribution Weekly Checks Illustration

Operation

Step

Normal indication

Corrective procedure

la. b.

Figure

Key

Notify the IBCC personnel that the IROR local checks are ready to begin. Insure that the procedures necessary for the preparation of the IROR for check procedures contained in paragraphs 3-12 and 3-13 have been performed.

WARNING

High Voltage potential exists, during performance of these procedures.

2a.

Insure that the power cable is connected and advise the generator personnel that the IROR is to be energized .

b.

MAIN POWER switch

ON.

2-7

5

3.

MAIN POWER circuit breaker

ON.

2-4

11

d.

LINE VOLTAGE switch

PHASE 1 .

4

PHASE 2. PHASE 3.

LINE VOLTAGE meter

228 to 252 vac.

3

Adjust generator output Refer to TM 9-1430-529-12-2 , table 11-4, step 2.

e. 3.

LINE VOLTAGE switch

OFF .

ON-OFF switch

ON.

LOCAL lamp

2-1

24 25

illuminates .

Refer to TM 9-1430-529-12-2, table 11-4, step 3 . 4.

L.V.P.S. FIL. Circuit breaker Circuit breaker

ON.

2-4

14

2-4

15

2-4

16

remains on.

Refer to TM 9-1430-529-12-2 , table 11-4, step 4. 5.

SERVO-FIL. circuit breaker Circuit breaker

ON. remains on.

Refer to TM 9-1430-529-12-2, table 11-4, step 5 .

6.

IND. FIL. circuit breaker Circuit breaker

ON.

remains on.

Refer to TM 9-1430-529-12-2, table 11-4 , step 6 .

3-16

C12

TM 9-1430-529-12-1

Table 3-19.

Power Distribution Weekly Checks - Continued Illustration

Operation

Step

Normal indication

Figure

Corrective procedure

7.

R/T & MOD . circuit breaker Circuit breaker

ON.

Key

2-4

6

2-3

20

2-4

7

2-4

17

2-4

8

remains on.

Refer to TM 9-1430-529-12-2 , table 11-4 , step 7. 8.

Check blower in modulator-power supply . BLOWER in modulator-power supply

operates.

Refer to TM 9-1430-529-12-2 , table 11-4 , step 8.

9.

Check blower in receiver-transmitter. Blower in receiver-transmitter

operates.

Refer to TM 9-1430-529-12-2 , table 11-4 , step 9. 10.

Check blower in antenna pedestal . Blower in antenna pedestal

blower operates .

Refer to TM 9-1430-529-12-2 , table 11-4 , step 10. 11.

Check compressor in pressurization unit . Compressor in pressurization unit

operation is audible .

Refer to TM 9-1430-529-12-2 , table 11-4 , step 11 . 12 .

Check compressor operating cycle. Compressor operates for not more than 5 minutes, and is then inop erative for at least 15 minutes. Refer to TM 9-1430-529-12-2 , table 11-4, step 12.

13.

Observe PWR ON lamp.

PWR ON lamp

illuminated.

Refer to TM 9-1430-529-12-2 , table 11-4, step 13.

14.

R.S.G. BLOWERS circuit breaker

ON.

Circuit breaker remains on and blower in radar set group operates. Refer to TM 9-1430-529-12-2 , table 11-4, step 14.

15.

S.P.O. circuit breaker

Circuit breaker

ON.

remains on.

Refer to TM 9-1430-529-12-2 , table 11-4 , step 15 .

16.

IND K.V. circuit breaker

Circuit breaker

ON. remains on.

Refer to TM 9-1430-529-12-2, table 11-4 , step 16.

3-17

TM 9-1430-529-12-1

C12 Table 3-19.

Power Distribution Weekly Checks- Continued

I

Illustration

Operation

Step

Normal indication Corrective procedure

17.

L.V.P.S. PLATE circuit breaker Circuit breaker

Figure ON.

Key

2-4

9

2-3

1, 2, 3

remains on.

Refer to TM 9-1430-529-12-2 , table 11-4 , step 17. 18.

Observe FAIL IND lamp and indicator fuses A1 through A6. All indicator fuses and FAIL IND lamps

extinguish. Refer to TM 9-1430-529-12-2 , table 11-4, step 18.

19.

Loosen the eight knurled screw fasteners and pull out the low-voltage power supply to the stop limit.

PWR ON lamp

extinguishes .

2-3

20

3-7

3

Refer to TM 9-1430-529-12-2, table 11-4 , step 19.

20a.

Safety interlock switch

b.

Observe PWR ON lamp.

PWR ON lamp

override .

2-3

20

illuminates .

Refer to TM 9-1430-529-12-2, table 11-4, step 13. 21a.

b.

Digital multimeter ( DMM )

set to measure -500 vdc .

LO test lead

into J4 (reference voltage regulator ) .

5

into J7.

HI test lead DMM

3 LO

C.

3-8

-249.5 vdc to -250.5 vdc.

6

Adjust -250 ADJUST. Refer to TM 9-1430-529-12-2 , table 11-4 , step 26. 22a.

b.

Remove the HI test lead and set the DMM to measure +500 vdc . into J5 .

HI test lead

DMM

3-8

2

249.5 vdc to 250.5 vdc.

Adjust +250 ADJUST. 1

Refer to TM 9-1430-529-12-2, table 11-4 , step 27. C.

Remove the DMM test leads.

23a.

Digital multimeter ( DMM )

set to measure +28 vdc.

b.

LO test lead

connect to TB1-5 .

C.

HI test lead

connect to TB1-4.

DMM

25 to 40 vdc. Refer to TM 9-1430-529-12-2, table 11-4 , step 28.

d.

3-18

Push in and secure the low voltage power supply.

3-7

2

1

TM 9-1430-529-12-1

C14 Table 3-19.

Power Distribution Weekly Checks- Continued

Illustration

Operation Normal indication

Step

Corrective procedure 24.

BALANCE SELECTOR switch

A1 through A6 .

BALANCE meter

Figure

Key

2-3

16 22

white line for all positions.

Adjust A1 through A6 , respectively .

19 , 18 , 17, 15 ,

14, 13 Refer to TM 9-1430-529-12-2 , table 11-4, step 29.

2-1

Observe READY RADIATE lamp . READY RADIATE lamp

222

25.

illuminates 4 to 6 minutes after ON-OFF switch is set to ON.

24

Refer to TM 9-1430-529-12-2 , table 11-4, step 30 .

Table 3-20.

Antenna Positioning Weekly Checks Illustration

Operation Normal indication

Corrective procedure

Figure

Key

2-7

34

Step

2-4

13

WARNING

Insure that all personnel are clear of the antenna.

la.

AZIMUTH AND ELEV STOW lock

disengaged.

b.

Antenna SAFETY SWITCH

OPERATE .

C.

AZ -AMPLIDYNE circuit breaker

ON.

d.

EL-AMPLIDYNE circuit breaker

ON.

e.

TEST switch

NORMAL .

TEST lamp

3, 1

10 2-2

2

5

extinguishes. Refer to TM 9-1430-529-12-2 , table 11-5 , step 1 .

2a.

rotate clockwise and

Azimuth handwheel

2-1

16

counterclockwise.

moves clockwise and then counterclockwise .

Antenna

Refer to TM 9-1430-529-12-2, table 11-5 , step 2. b.

Azimuth handwheel

rotate to 0 mils.

16

3-19

C12

TM 9-1430—529—12—1

Table 3-20.

Antenna Positioning Weekly Checks -Continued Illustration

Operation

Step

Normal indication Corrective procedure

Figure

Key

2-1

27

2-2

6

WARNING

Insure that all personnel are clear of the antenna .

3a.

rotate clockwise and

Elevation handwheel

then counterclockwise . moves up and down.

Antenna

Refer to TM 9-1430-529-12-2 , table 11-5 , step 8 .

་

b.

4a.

b.

Elevation handwheel

rotate to 0 mils .

AMPLIDYNE FIELD CURRENT switch

AZ .

4,7

Observe AMPLIDYNE FIELD CURRENT meters.

within 1 scale division of

Meters

red line. Adjust the AMPLIDYNE FIELD CURRENT ADJUST control.

16

Refer to TM 9-1430-529-12-2 , table 11-5 , step 4.

5a. b.

AMPLIDYNE FIELD CURRENT switch

EL.

2-2

4,7

Observe AMPLIDYNE FIELD CURRENT meters.

Meters

6

within 1 scale division of red line. Adjust the AMPLIDYNE FIELD CURRENT ADJUST control.

14

Refer to TM 9-1430-529-12-2 , table 11-5 , step 10.

ба.

AZ-AMPLIDYNE circuit breaker

OFF .

b.

EL-AMPLIDYNE circuit breaker

OFF .

2-4

13 10

NOTE Wait two minutes before proceeding.

C.

Azimuth handwheel

HIGH ERROR lamp

rotate clockwise. illuminates in less than 60 mils of rotation from 0.

Refer to TM 9-1430-529-12-2, table 11-5 , steps 6 and 7.

3-20

2-2

8

C16

TM 9-1430-529-12-1 Table 3-20.

Antenna Positioning Weekly Checks- Continued Illustration

Operation

Step

Normal indication Figure

Key

rotate clockwise.

2-1

27

illuminates in less than 60

2-2

8

2-4

13

Corrective procedure 6d.

Azimuth handwheel

rotate counterclockwise.

HIGH ERROR lamp

extinguishes before the handwheel reaches 0.

Refer to TM 9-1430-529-12-2, table 11-5 , steps 6 and 7.

e.

Azimuth handwheel

rotate counterclockwise.

HIGH ERROR lamp

illuminates in less than 60 mils of rotation from 0.

Refer to TM 9-1430-529-12-2, table 11-5 , steps 6 and 7.

ƒ.

rotate clockwise.

Azimuth handwheel

HIGH ERROR lamp

extinguishes before the handwheel reaches 0.

Refer to TM 9-1430-529-12-2 , table 11-5, steps 6 and 7. g.

7a.

Rotate the azimuth handwheel to 0 mils. Elevation handwheel

HIGH ERROR lamp

mils of rotation from 0. Refer to TM 9-1430-529-12-2 , table 11-5, steps 6 and 7.

b.

Elevation handwheel

HIGH ERROR lamp

rotate counterclockwise .

extinguishes before the handwheel reaches 0.

Refer to TM 9-1430-529-12-2, table 11-5, steps 6 and 7. C.

Elevation handwheel

HIGH ERROR lamp

rotate counterclockwise. illuminates in less than 60 mils of rotation from 0.

Refer to TM 9-1430-529-12-2, table 11-5, steps 6 and 7.

d.

Elevation handwheel

HIGH ERROR lamp

rotate clockwise. extinguishes before the handwheel reaches 0.

Refer to TM 9-1430-529-12-2, table 11-5 , steps 6 and 7. e.

ROTATE the elevation handwheel to 0 mils.

ƒ.

AZ-AMPLIDYNE circuit breaker

ON.

g.

EL-AMPLIDYNE circuit breaker

ON.

10

3-21

TM 9-1430-529-12-1

C13 Table 3-21 .

Parallax Circuits Weekly Checks

Operation

Step

Illustration Normal indication

Corrective procedure la.

Figure

Loosen the eight knurled screw fasteners and pull the amplifier-computer

3-9

2-3 extinguish.

2220

out to the stop limits . PWR ON and READY RADIATE lamps

Key

2-1

Refer to TM 9-1430-529-12-2, table 11-6, step 1.

Safety interlock switch PWR ON and READY RADIATE lamps

override .

3-9 2-3

illuminate.

2

22220

2.

2-1

Refer to TM 9-1430-529-12-2, table 11-6, step 2 .

3a. b.

Note the reading on the azimuth indicator (mil - ring).

CALIBRATION pushbutton ................

press and hold .

2-7

6

3-9

3

slews 200 mils in azimuth as

Antenna.......

indicated on the azimuth indicator (mil -ring) . 1

Adjust R16 CALIBRATION ADJUST. Refer to TM 9-1430-529-12-2, table 11-6 , step 3. C.

CALIBRATION pushbutton

d.

Close and secure the amplifier-computer.

4.

release. 1-6

7

2-2

3

Error switch

COMPUTER-EL.

TEST switch

ZERO.

2

illuminates.

5

TEST lamp

Refer to TM 9-1430-529-12-2, table 11-6 , step 4.

5.

Observe azimuth parallax indicator dial. Azimuth parallax indicator dial

2-2

21

2-2

10

2-2

3

0.

Refer to TM 9-1430-529-12-2 , table 11-6, step 5 .

6.

Observe elevation parallax indicator dial . Elevation parallax indicator dial

0.

Refer to TM 9-1430-529-12-2 , table 11-6, step 6. 7.

ERROR switch

COMPUTER-EL.

ERROR meter

blue area.

Refer to TM 9-1430-529-12-2, table 11-6 , step 7.

3-22

1

TM 9-1430-529-12-1

C12 Table 3-21 .

Parallax Circuits Weekly Checks -Continued

I Illustration

Operation

Step

Normal indication Corrective procedure

8.

Observe azimuth parallax indicator dial.

Figure

Key

2-2

21

ERROR switch

COMPUTER- AZ .

3

TEST switch

STATIC.

2 1

ERROR meter shows fluctuations and azimuth parallax indicator dial moves between 0 and S.

Refer to TM 9-1430-529-12-2 , table 11-6, step 8. 9.

2-2

Observe elevation parallax indicator dial.

10

ERROR switch

COMPUTER-EL.

3

TEST switch

STATIC .

2 1

ERROR meter shows fluctuations and elevation parallax indicator dial moves between 0 and S. Refer to TM 9-1430-529-12-2, table 11-6 , step 9. 10.

Observe antenna. Antenna slews between 1060 and 1070 mils on elevation parallax indicator dial and maintains position while in STATIC.

2-2

10

2-2

3

Refer to TM 9-1430-529-12-2, table 11-6, step 10. 11.

ERROR switch

ELECTRONIC CONTROL-AZ .

ERROR meter

1

red line.

Refer to TM 9-1430-529-12-2, table 11-6, step 11 .

12.

ERROR switch

ELECTRONIC CONTROL-EL.

ERROR meter

2-2

3 1

red line.

Refer to TM 9-1430-529-12-2 , table 11-6, step 12.

13.

COMPUTER-AZ.

ERROR switch

ERROR meter

2-2

3 1

red line.

Refer to TM 9-1430-529-12-2 , table 11-6 , step 13.

14.

ERROR switch

COMPUTER-EL .

ERROR meter

red line.

2-2

3

1

Refer to TM 9-1430-529-12-2, table 11-6, step 14.

3-23

TM 9-1430-529-12-1

C13 Table 3-21.

Parallax Circuits Weekly Checks-Continued

Illustration

Operation

Step

Normal indication

Figure

Corrective procedure

15.

DYNAMIC.

TEST switch

Key

2-4

5

2-2

2

Antenna completes one diagonal search in 12 to 16 seconds. Slews minimum 700 mils peak to peak in azimuth and elevation. Elevation lower limit −25 to +25 mils. Refer to TM 9-1430-529-12-2, table 11-6 , step 15.

16.

TEST switch

NORMAL .

Antenna returns to settings of azimuth and elevation handwheels.

TEST lamp

5

extinguishes. Refer to TM 9-1430-529-12-2, table 11-6, step 16.

Table 3-22.

Transmitter and Modulator Power Supply Weekly Checks Illustration

Operation

Step

Normal indication Corrective procedure

la.

Figure

Key

2-4

13

Position the antenna over the radar set group cabinet at 200 mils elevation .

b.

AZ-AMPLIDYNE circuit breaker

OFF .

C.

EL-AMPLIDYNE circuit breaker

OFF .

d.

Antenna SAFETY SWITCH

SAFE .

e.

f.

10 4

Open the road side fender well and remove test cable W25.

3-1

5

Remove the cover of RECEIVER TEST P16/W25P11 and the cover of J5 located beneath the receiver/transmitter.

2-4

23

3-1

g.

Connect test cable W25 between RECEIVER TEST P16/W25P11 and J5 .

h.

Modulator-power supply door

i.

Override the safety interlock switch on the modulator power supply.

WARNING lamp

open.

223

2-7

3-2

3

2-6

1

illuminates with safety 6

interlock switch engaged. Refer to TM 9-1430-529-12-2 , table 11-7, step 1 .

SHUNT CURRENT meter

red needle is set to 60 μa.

b.

RECT CURRENT meter

red needle is set to 90μa.

C.

Receiver-transmitter door

open.

3-2

13

d.

ATTENUATOR CONTROL switch

AUTO .

2-5

1

e.

SYSTEM TRIGGER switch

OPERATE .

f.

Observe waveguide pressure gage .

2a.

Refer to TM 9-1430-529-12-2, table 11-7 , step 2.

3-24

3 2

3

∞ ∞

18 to 22 psi.

2-6

3-3

8

TM 9-1430-529-12-1

C16 Table 3-22.

Transmitter and Modulator Power Supply Weekly Checks - Continued Illustration

Operation

Step

Normal indication

Figure

Corrective procedure

Key

NOTE Perform this check only if MWO 9-1430-529-50-1 has not been applied. If MWO 9-1430-529-50-1 has been applied, close and secure the receivertransmitter door and proceed to step 4.

3a.

R/T & MOD. circuit breaker

OFF.

b.

Remove the cap from the tr tube in the receiver-transmitter.

C.

Multimeter AN/PSM-6 FUNCTION switch ..

DC MA.

d.

RANGE switch

0.5.

2-4

6

3-3

5

WARNING

When the

ROR is energized , high voltage is present in the

receiver-transmitter. Use extreme caution during the performance of this check. Do not allow the base portion of the meter leads to come in contact with any part of the body, or any part of the radar not specified .

e.

Connect the multimeter positive lead to the tr tube cap, and the negative lead to the tr tube cap lead.

f.

R/T & MOD . circuit breaker

g.

Observe multimeter.

ON.

100 to 230 ua. Refer to TM 9-1430-529-12-2, table 11-7, step 3.

4. 2. 2

h .

R/T & MOD. circuit breaker

OFF .

i.

Remove the multimeter.

j.

Connect the cap to the tr tube and then close and secure the receivertransmitter door.

k.

R/T & MOD. circuit breaker

ON.

MOD PLATE circuit breaker

ON.

2-4

12

b.

INCREASE -DECREASE control

full counterclockwise.

2-1

15

C.

Observe READY RADIATE lamp.

4a.

READY RADIATE lamp

22

illuminated.

5.

RADIATE -STANDBY switch

RADIATE .

RADIATE lamp

illuminates .

2-1

8823

Refer to TM 9-1430-529-12-2, table 11-7, step 4.

21

Refer to TM 9-1430-529-12-2, table 11-7 , step 5.

5.1

Observe MAGNETRON CURRENT meter.

MAGNETRON CURRENT meter .............

2-1

26

8 to 11.5 ma.

Perform transformer limit adjustment procedure table 5-3.

3-25

C17

TM 9-1430-529-12-1 Table 3-22.

Transmitter and Modulator Power Supply Weekly Checks—Continued Illustration

Operation

Step

Normal indication

Figure

Corrective procedure

Key

NOTE

6a. b.

Adjust INCREASE-DECREASE control ......

clockwise.

2-1

25

When radar is placed in radiate , magnetron current will be greater than 8 ma .

15 26

Observe MAGNETRON CURRENT meters. MAGNETRON CURRENT meter is adjustable to 16.5 ma.

SHUNT CURRENT meter

black needle indicates

2-4 3-4.1 or 3-4.2

2-6

245

Thyratron operation is audible and visible ( purplish glow) . R.F. POWER meter greater than 85 watts. KILOVOLTS meter 4.8 to 5.6 kv.

21

or

3

20 to 60 μa.

RECT CURRENT meter

2

black needle indicates 0to 80 μa.

Refer to TM 9-1430-529-12-2, table 11-7, step 6. 7a.

Turn the upper adjustment screw on the SHUNT CURRENT meter until the red needle coincides with the black needle. Radar momentarily returns to standby twice in succession, and then remains in standby. Refer to TM 9-1430-529-12-2 , table 11-7 , step 7.

b. C.

d.

SHUNT CURRENT meter

return red needle to 60 μa.

INCREASE- DECREASE control.......……………………..

fully counterclockwise

Set the ON-OFF switch to OFF for five seconds , then back to ON. Wait

2-1

15

3-10

18

until the RADIATE lamp illuminates.

e.

INCREASE- DECREASE control.................

MAGNETRON CURRENT meter .......... 8a.

clockwise until 16.5 ma

Turn the upper adjustment screw on the RECT CURRENT meter for mo-

2-6

2

3-2

8

2-1

15

3-10

18

mentary coincidence of the red needle with the black needle. Radar momentarily returns to standby twice in succession, and then remains in standby. Refer to TM 9–1430-529-12-2, table 11-7, step 8. b.

RECT CURRENT meter

C.

Close and secure the modulator-power supply door.

d.

INCREASE-DECREASE control

e.

Set the ON-OFF switch to OFF for five seconds, then back to ON. Wait

return red needle to 90 μa.

fully counterclockwise.

until the RADIATE lamp illuminates.

f.

INCREASE-DECREASE control

MAGNETRON CURRENT meter

3-26

clockwise until

16.5 ma.

C12

TM 9-1430-529-12—1

Table 3-22.

Transmitter and Modulator Power Supply Weekly Checks- Continued Illustration

Operation Normal indication

Step

Corrective procedure

9a.

b.

Observe FREQUENCY meter.

FREQUENCY switch

Figure

Key

2-1

14

INCREASE or DECREASE until 12

FREQUENCY meter moves from one end of dial to other. Refer to TM 9-1430-529-12-2 , table 11-7, step 9.

Table 3-23.

Range Indicator Weekly Checks

| Illustration

Operation

Step

Normal indication

Corrective procedure 1.

Adjust INTENSITY control Range indicator screen

Figure

until

2-1

sweep is clearly visible and

Key 3

1

sharply focused . 2,6

Adjust FOCUS and ASTIG controls .

Refer to TM 9-1430-529-12-2 , table 11-8 , step 1.

2.

Check vertical position. Range indicator screen

sweep is positioned about ¼ inch from bottom .

2-1

1

Adjust the VERT POS control . LO5

Refer to TM 9-1430-529-12-2 , table 11-8 , step 2.

3.

Check horizontal position. Range indicator screen

sweep is horizontally centered.

2-1

9

Adjust the HOR POS control . Refer to TM 9-1430-529-12-2 , table 11-8, step 3.

4.

1

Check sweep length . Range indicator screen

sweep extends to ¼ inch

2-1

1

from right edge. Adjust the SWEEP LENGTH control .

8

Refer to TM 9-1430-529-12-2 , table 11-8 , step 4 .

3-27

TM 9-1430-529-12-1

C12 Table 3-23.

Range Indicator Weekly Checks-Continued Illustration

Operation

Step

Normal indication

Figure

Corrective procedure

5.

Key

Check range marks. Range indicator screen

range marks extend to

2-1

1

2-1

7

2-1

11

about 1/4 inch from top of screen and are equally spaced . Adjust the RANGE MK control. Refer to TM 9-1430-529-12-2 , table 11-8 , step 5.

6a. b.

EXP RANGE control

0.

EXPAND-NORMAL

EXPAND .

10

The sweep expands to display the first 14 -range segment. Refer to TM 9-1430-529-12-2 , table 11-8 , step 6.

C.

clockwise.

EXP RANGE control

The range marks move smoothly to the left and the indicator

‫نون‬

displays 14 -range segments up to full range. Refer to TM 9-1430-529-12-2, table 11-8 , step 6.

d.

EXPAND-NORMAL switch

NORMAL .

e.

EXP RANGE control

0.

Table 3-24.

Receiver Weekly Checks Illustration

Operation

Step

Normal indication

Figure

Corrective procedure AFC- 1- CR1 .

TEST switch

TEST meter

2-4

green area.

5

22222

la.

Key

20

Adjust and lock the CRYSTAL CURRENT control. Refer to TM 9-1430-529-12-2, table 11-9, step 1 .

TEST meter

stable and deflects periodically. Perform the AFC alinement check in table 5-2.

Perform the magnetron frequency check in table 5-1. b.

FREQUENCY switch

set and hold to

2-1

14

DECREASE until FREQUENCY meter

3-28

-5.

12

TM 9-1430-529-12-1

C12 C Table 3-24.

Receiver Weekly Checks- Continued Illustration

Operation

Step

Normal indication Corrective procedure

1 c.

Figure

Key

2-4

20

2-4

5

Momentarily set the FREQUENCY switch to INCREASE for each of the following indications on the FREQUENCY meter : -4, -3, -2, -1 , 0, 1, +2, +3, +4, and +5.

TEST meter

green area. Adjust and lock the CRYSTAL CURRENT control . Refer to TM 9-1430-529-12-2 , table 11-9, step 1.

TEST meter

stable and deflects periodically. Perform the AFC alinement check in table 5-2. Refer to TM 9-1430-529-12-2 , table 11-9, step 1.

2a.

TEST switch

AFC-2-CR2.

220

TEST meter

green area. Adjust and lock the CRYSTAL CURRENT control . Refer to TM 9-1430-529-12-2, table 11-9, step 1.

b.

12

Momentarily set the FREQUENCY switch to DECREASE for each of the following indications on the FREQUENCY meter : +4, +3 , +2 , +1 , 0 , −1, -2, -3, -4, and -5.

TEST meter

green area. Adjust and lock the CRYSTAL CURRENT control. Refer to TM 9-1430-529-12-2 , table 11-9, step 1 .

TEST switch

REC-1- CR3.

TEST meter

2-4

green area.

22220

3a.

5

Adjust and lock the CRYSTAL CURRENT control . Refer to TM 9-1430-529-12-2, table 11-9, step 1 . b.

12

Momentarily set the FREQUENCY switch to INCREASE for each of the following indications on the FREQUENCY meter : -4, -3, -2 , -1 , 0 , +1, +2, +3, +4, and +5.

TEST meter

green area. Adjust and lock the CRYSTAL CURRENT control . Refer to TM 9-1430-529-12-2 , table 11-9, step 1.

TEST switch

TEST meter

REC-2-CR4.

green area.

2-4

2220

4a.

5

Adjust and lock the CRYSTAL CURRENT control. Refer to TM 9-1430-529-12-2, table 11-9, step 1 .

3-29

TM 9-1430-529-12-1

C12 Table 8-24.

Receiver Weekly Checks-Continued Illustration

Operation

Step

Normal indication Corrective procedure

Key 121

4b.

Figure

Momentarily set the FREQUENCY switch to DECREASE for each of the following indications on the FREQUENCY meter : +4, +3 , +2 , +1 , 0 , -1 , -2, -3, -4, and -5.

TEST meter

green area. Adjust and lock the CRYSTAL CURRENT control. Refer to TM 9-1430-529-12-2 , table 11-9, step 1.

NOTE If the CRYSTAL CURRENT control is adjusted for one crystal diode, the remaining crystal diodes must be rechecked to insure that the TEST meter indicates green area for each TEST switch position.

C.

FREQUENCY switch FREQUENCY meter

5a.

TEST switch

set to INCREASE until 0.

SET.

R.F. POWER meter

2-4

5

21

falls slowly to 0.

Refer to TM 9-1430-529-12-2 , table 11-9, step 2 . b.

NOISE FIGURE SET control

TEST meter

adjust until

2-4

18 22

black line under SET.

19

Adjust and lock the IF GAIN control. Refer to TM 9-1430-529-12-2, table 11-9, step 2. C.

NOISE FIGURE SET control

lock.

d.

TEST switch

READ.

TEST meter

indication is not to left of 13 db line. Refer to TM 9-1430-529-12-2, table 11-9, step 2.

2-4

5

6a.

TEST switch

IF GAIN.

b.

IF GAIN control

adjust until

19

red line and noise level varies as control is

22

TEST meter

adjusted. Refer to TM 9-1430-529-12-2, table 11-9, step 3. C.

IF GAIN control

lock.

d.

TEST switch

OFF.

e.

Remove test cable W25 and replace in the left fender well.

3-30

3-1

5

C12

TM 9-1430-529-12—1

Table 3-24.

Receiver Weekly Checks-Continued Illustration

Operation Normal indication

Step

Corrective procedure

6f.

Replace the covers on RECEIVER TEST P16 /W25 P11 and J5.

Figure

Key

2-4

23

3-1

5

2-7

4

2-4

13, 10

WARNING

Insure that all personnel are clear of antenna. g.

h.

OPERATE .

Antenna SAFETY SWITCH AZ-AMPLIDYNE and EL-AMPLIDYNE circuit breakers

ON.

༡

GO Table 3-25.

19

Radar Performance Weekly Checks

Illustration

Operation

Step

Normal indication Corrective procedure

la.

While holding the ANTENNA-LOAD switch in the ANTENNA position , rotate the azimuth and elevation handwheels until the antenna is pointing

Figure

Key

2-1

17

at a known video return or ground clutter. While holding the ANTENNA-LOAD switch to ANTENNA, momentarily

2-4

121

b.

2-1

16, 27

set the FREQUENCY switch to INCREASE for each of the following indications on the FREQUENCY meter : -4, -3 , -2, -1 , 0 , +1 , +2 , +3, +4 and +5.

Video return or ground clutter present on the range indicator screen at each frequency indication. Perform the AFC alinement procedures in table 5-2. Refer to TM 9-1430-529-12-2, table 11-10 , step 1.

C.

2a.

FREQUENCY switch

DECREASE until 0.

Rotate the azimuth and elevation handwheels to obtain typical short-range ground clutter within range of STC effectiveness.

3-31

TM 9-1430-529-12-1 C12 Table 3-25.

Radar Performance Weekly Checks- Continued

Operation

Step

Illustration Normal indication Corrective procedure

26.

S.T.C. switch

ON.

Figure

Key

2-1

18

The short-range amplitude is below video limiting but above noise level (see waveforms below) .

Luwwwwwww

Too much S.T.C.

‫سال‬

Correct S.T.C.

Too little S.T.C.

(Below noise level )

Adjust R23 and R39.

3-3

2,3

2-1

4

Refer to TM 9-1430-529-12-2 , table 11-10 , step 2.

C.

ANTENNA-LOAD switch

release.

d.

S.T.C. switch

OFF .

VIDEO control

adjust until

3a.

noise peaks are 1½ amplitude of range marks.

Range indicator screen

b.

D.B.B. switch

ON.

Noise peaks do not decrease in amplitude. The high intensity concentration of the noise shifts to the baseline over the entire range of the sweep . Refer to TM 9-1430-529-12-2, table 11-10, step 3.

C.

D.B.B. switch

OFF .

d.

VIDEO control

adjust until

Range indicator screen e.

1 / 4 -inch grass level.

Inform the IBCC personnel that the IROR checks are completed . When requested by the IBCC personnel to place the IROR in remote operation, refer to paragraph 3-15.

3-32-3-36

19

t

TM 9-1430-529-12-1

C16 Section II.1 .

HAWK BATTERY SILENT MODE SYSTEM REDEPLOYMENT CHECKS I

3-17.2

General

3-17.3

Preparation

This section contains information pertaining to

When directed to prepare the ROR for the silent

the HAWK battery silent mode redeployment checks. These checks are performed by the BCC personnel following emplacement to establish inte-

mode redeployment checks by the BCC personnel , perform table 3-26.

grated system confidence without placing system radars in the radiate mode.

Table 3-26.

HAWK Battery Silent Mode Redeployment Check Preparation Illustration

Step

Operation

1.

Radar

energized to false radiate status.

2.

DISTANCE TO ILLUM handwheels

set to 0 during test, return

Figure

Key

2-2

13, 18

to tactical setting after alinement check is complete.

4

3.

Antenna SAFETY switch

OPERATE.

8-3

5

4.

LOCAL/REMOTE switch

REMOTE.

2-1

20

5.

Report completion of ROR preparation to the BCC personnel.

6 3-36.1

TM 9-1430-529-12-1

C13

Section III. ILLUSTRATIONS

3-18. General

This section contains the illustrations necessary for the operation and organizational maintenance

of the IROR. The illustrations are for easy reference to the controls, indicators, test points, and adjustments used during the performance of the procedures.

8

MI 65305

1-Receiver-transmitter air vent drawer 2-J5 3-Flexible air hose 4-Antenna_pedestal air vent lever 5- Road side fender well 6-Motor-generator air intake door 7-Radar set group air exhaust door 8-Modulator-power supply air vent drawer

Figure 3-1. IROR - road side.

14

1312

11-

9

10

8

MI 65306

1-Antenna 2-Modulator-power supply 3-Modulator-power supply door 4-Radar set group 5-Radar set group door 6-Radar set group air intake door 7-Motor-generator air intake door 8-Motor-generator air exhaust door 9-Motor-generator air exhaust door -generator assembly 10-Motor 11-Antenna pedestal 12- Access door 13-Receiver-transmitter door 14- Receiver-transmitter

Figure 3-2. IROR- curb side.

3-37

TM 9-1430-529-12-1

Mail

2

4

3

5

15-

14-

13

12

11

10

9

8 7

MI 65307

1- ATTENUATOR CONTROL switch 2-R23 3- R39 4-J4 5-Tr tube 6- SYSTEM TRIGGER switch 7- Local oscillator tuning drive cover plate 8-Waveguide pressure gage

9-J7 10-J6 11-J3 12-C18 13-Noise figure IF amplifier 14-P19 15-J8

Figure 3-3. Receiver- transmitter adjustments .

1

VROULIKOS

Q

2

3

MI 65308 1-Waveguide 2-WAVEMETER INDICATOR 3-J1 4- Rf test cable W26 5-Wavemeter 6-Rf test adapter

Figure 3-4. Receiver - transmitter-waveguide test hookup.

3-38

TM 9-1430-529-12-1

15

-1 14

2

WOLD

1312

8

11

9

10

MI 65309

1-J9 2-AC LINE switch 3-AFC ON lamp 4-HOLD ADJ 5-LOW REPEL ADJ 6-HIGH REPEL ADJ 7- GAIN ADJ 8-BALANCE ADJ 9-J11 10-INPUT pushbutton 11-J12 12-J13 13-DIFF ZERO ADJUST 14-J8 15- PICK UP ADJUST

Figure 3-5. Local oscillator control amplifier - adjustments.

1

5 2

4

3

MI 65310

1-Repeller control drive gear 2-Repeller control shaft 3-Repeller control drive cam 4-Spring-loaded worm shaft cam 5-High frequency stop

Figure 3-6. Local oscillator tuning drive gear assembly.

3-39

TM 9-1430-529-12-1

1

21

www

3

MI 65311

1-TB1-4 2-TB1-5 3-Safety interlock switch Figure 3-7. Low-voltage power supply-left-side view .

250

. 5

V5-5667 47-5731

2 MI 65312

1-+250 ADJUST 2-J5 3-J4 4-J2 5-J7 6-250 ADJUST Figure 3-8. Reference voltage regulator.

3-40

TM 9-1430-529-12-1

3

2

1-CALIBRATION ADJUST 2-Safety interlock switch 3-CALIBRATION pushbutton

MI 65313

Figure 3-9. Amplifier-computer-left-side view.

BLUE 17

14 12

10

8

7 0

T

8

SE

目

RED LINE

GREEN

GREEN

BLUE

BLUE

RED LINE YELLOW

TEST METER

ERROR METER

MI 65314 Figure 3-10. IROR

meter colored areas. 3-41

(

C12

TM 9-1430-529-12-1

CHAPTER 3.1 EXPLANATION OF CHECKS

Section I.

3.1-1 .

GENERAL

3.1-2.

Purpose

Introduction

This chapter is a maintenance aid in performing

In the following pages you will find a section

the check procedures. It supplements the checks in chapter 3 so that you will know why certain procedures are necessary, and how the check in-

for each weekly check procedure table ; within the sections are paragraphs explaining the steps . Steps with an obvious function are not discussed in

sures optimum IROR performance .

detail.

Since the theory of operation can be found in TM 9-1430-529-12-2 , we will discuss such theory only as necessary to understand the purpose of the checks.

Section II.

3.1-3 .

POWER DISTRIBUTION WEEKLY CHECKS (Table 3-19) leaks.

Purpose

This procedure checks the application of primary ac power to the IROR . It also checks that the energizing and control system produces the correct sequence from turn-on to standby and insures that

lamp indicates that the 5 -minute timer has run up . This delay protects the magnetron and the thyratron in the modulator power supply from damage due to early application of high voltage. 3.1-7.

the equipment , blowers , and waveguide pressurization system operate correctly .

3.1-4 .

Check Communications System (Step 1 )

This step insures that IBCC are established . 3.1-5 .

communications with

Check Main Power (Step 2)

This step applies 416-vac three-phase primary power and checks the voltage at each stage .

ply safety interlock is overridden. Then you check the 250- and -250 -vdc reference supplies since they provide the references by which the low-voltage regulators maintain correct voltage . Since the -250 -vdc supply is the primary reference ( it governs the output of the 250 -vdc supply) , you check it before the 250-vdc supply .

Check Ready Status (Step 3)

When you set the ON -OFF switch to ON , illumination of the LOCAL lamp shows you that 28vdc main power is available to control the IROR operating modes.

Steps 4 , 5 , 6 , and 7 activate the

radar's filaments , all blowers except those in the radar set group , the waveguide pressurization unit , and the 5-minute timer. The airflow direction check insures correct phasing of the primary ac power. A low compressor duty cycle shows that the pressurized waveguide system has no significant

Check Reference Voltage (Steps 19, 20, 21 , 22, and 23)

First , you check the 28-vdc interlock line by observing that the PWR ON lamp extinguishes and then illuminates when the low-voltage power sup-

3.1-8. 3.1-6.

Illumination of the READY RADIATE

Check Low- Voltage 24)

Regulators

(Step

In this step , you insure that the A1 (-100 ) - , A2 ( 100 ) ( B) - , A3 ( 100 ) ( A) - , A4 ( 250 ) ( B ) - , A5 ( 250) (A) -, and A6 ( 300 ) -vdc regulators produce the correct outputs . These voltages are checked against the reference supplies by means of switched -in dividers .

3.1-9.

Check Time Delay Relay (Step 25)

This step insures that the READY RADIATE lamp illuminates in 4 to 5 minutes after the ONOFF switch is set to ON. 3.1-1

C12

TM 9-1430-529-12-1

Section III.

3.1-10.

ANTENNA WEEKLY CHECKS (Table 3-20)

Purpose

3.1-14.

Check Elevation Amplidyne Field Current (Step 5)

These steps insure that the antenna positioning system responds correctly to manual commands and provides the correct indication for high aiming errors . They also check the operating points of the control amplifiers .

This step is identical to the preceding one , except now we check the elevation channel .

3.1-15. 3.1-11 .

Check High Error Azimuth (Step 6)

Check Azimuth (Steps 1 and 2 )

In this and the following step , you check the error detection circuits . These circuits prevent the

This step prepares the antenna positioning system for operation , energizes it , and checks azimuth response to handwheel commands.

IROR from radiating, and withhold range data from the designated IHIPIR until the IROR is

3.1-12.

pointed near enough to the target to obtain valid With the azimuth amplidyne deinformation .

Check Elevation (Step 3 )

Here you insure that the elevation channel follows manual commands by observing antenna movement as the handwheel is turned .

3.1-13 .

Check Azimuth Amplidyne Field Current (Step 4)

This step checks dc current through the azimuth control amplifier output stage and azimuth amplidyne field windings . The adjustment controls output stage grid bias.

Section IV.

3.1-17.

Purpose

components . They insure that the IROR will point rapidly and accurately according to target data supplied by the IHIPIR . Figure 3.1-1 shows the test conditions , and is simplified to the extent that uninterrupted component chains are represented as single blocks. Note that local remote relay K1 , test relay K2 , and local azimuth and elevation relays K21 and K22 remain energized for these tests . However, they are included in the figure so that the normal (remote control ) signal inputs can also be shown . The points labeled TEST A through H are monitored by the ERROR meter circuit for specific voltages .

to energize , illuminating the HIGH ERROR lamp . This step also checks that K1 deenergizes for small errors , so that dynamic tracking conditions will not prevent the use of the IROR .

3.1-16.

Check High Error Elevation (Step 7)

Here you test elevation error detection in a manner similar to the azimuth check above .

divider R17-R22 and R27 in the amplifier-comVoltages taken from this divider puter test set . will serve as comparison references for the staticCALIBRATION pushtest error measurements . button S4 sends the comparison ac as a simulated azimuth parallax signal to the summing network at the input of the azimuth control amplifier . The resulting 200 -mil azimuth travel then provides indication by which to adjust the reference amplitude . Next , we check the NORMAL position of the This checks that the IHIPIR -toTEST switch . target and antenna positioning servos operate to null their inputs . Since local -remote relay K1 and test relay K2 are energized , the parallax and IHIPIR error signals are zero , and only one signal is present at each of the servo input summing networks (TEST B, D , F , and G in fig. 3.1-1 ) . The ERROR switch successively selects these signals for display on the ERROR meter , where they are checked for null (blue area indication) .

Check Calibration (Steps 1 , 2 , and 3)

Here you prepare for the static check by adjusting the amplitude of the synchro reference fed to

3.1-2

error signal, which causes azimuth error relay K1

PARALLAX CIRCUITS WEEKLY CHECKS (Table 3-21 )

These steps check the performance of the parallax and antenna positioning systems , including parallax computers , control amplifiers and drive

3.1-18.

energized , rotating the azimuth handwheel from the null position of the previous step creates an

0

TM 9-1430-529-12-1

C12

SELECTED IHIPIR ELEVATION POINTING ERROR FROM IBCC

52.48

MODULATOR

LOCAL REMOTE KI TEST A

d:

STATIC ADJUST RIS

-67 VDC

52-5A

SUMMING NETWORK

SELECTED IHIPIR ELEVATION COMMAND FROM IBCC

IHIPIR TO -TARGET ELEVATION SERVO

ELEVATION PARALLAX COMPUTER INDICATOR

S2-2 O NILS COMMAND CT LOCAL ELEVATION K2

1065 MILS COMMAND DYNAMIC COMMAND

TEST B

CT

ΤΟ SECANT R45 ELEVATION HANDWHEEL

TEST C

DRIVER AMP

ELEVATION RESOLVER 82

52-3A

STATIC ADJUST R44

SLANT RANCE 1/R FROM IBCC

DISTANCE TO 1HIPIR CIRCUITS

EL PARALLAX

SUMMING NETWORK

CT

TEST D

ANTENNA ELEVATION SERVO

ANTENNA ELEVATION DRIVE

D/R 32-38 DRIVER AMP STATIC ADJUST R44

TEST K2

AZIMUTH RESOLVER 82

DRIVER AMP

ELEVATION RESOLVER 05

FEEDBACK $3-2A,B

SYNCHRO REFERENCE

MS 157622

Figure 3.1-1 .

Parallax checks (sheet 1 of 2) .

3.1-3

TM 9-1430-529-12—1

SELECTED IHIPIR AZIMUTH POINTING ERROR FROM IBCC

C12

32-4A MODULATOR

LOCAL REMOTE KI STATIC ADJUST R18

TEST M

-67 VDC

SECANT R45 FROM IHIPIR-TO- TARGET ELEVATION SERVO

52-58

--

52.1 CT

ANTENNA AZIMUTH SERVO

ANTENNA AZIMUTH DRIVE

SUMMING NETWORK

IHIPIR TO- TARGET AZIMUTH SERVO

ELEVATION PARALLAX COMPUTER INDICATOR

CLUSTER ORIENT CIRCUITS

TEST G

DYNAMIC COMMAND

SELECTED THIPIR AZIMUTH COMMAND FROM IBCC

SUMMING NETWORK

CLUSTER ADJUST CIRCUITS

52-6

OMILS COMMAND CT 1065 MILS COMMAND

LOCAL AZIMUTH K21

DYNAMIC COMMAND

TEST F

CT

AZIMUTH HANDWHEEL AZ PARALLAX

CALIBRATION 54

52-3C TEST E

STATIC TEST COMPARISON VOLTAGE

MS

Figure 3.1-1.

3.1-4

Parallax checks (sheet 2 of 2).

157623

C12 3.1-19.

TM 9-1430-529-12-1

Check Zero Position (Steps 4, 5, 6, and 7)

flection of the parallax computer indicators ("S" line ) , 1065 mils elevation antenna , and a specified computed parallax (TEST C and E, fig. 3.1-1 ) . The

In this and the following two steps , TEST switch S2 breaks the normal connections between

parallax signal is measured against selected fractions of the comparison reference in the AZ- and

sections of the parallax and antenna positioning systems, inserting test commands at the inputs to the sections . The isolated sections are thus tested

EL-COMPUTER positions of the ERROR switch . Since the test angle commands are all 1065 mils

individually , with output response monitored as antenna deflection , a parallax computer indicator reading, and an ERROR meter indication . The zero check substitutes 0-mil commands (synchro reference fed to 2 of 3 stator wires) for the elevation and azimuth handwheel commands fed to both IHIPIR-to -target servos and to the antenna elevation servo . However , the azimuth handwheel command continues to feed the antenna azimuth servo . The synchro reference is also applied to azimuth resolver B2 as a simulated D/R signal . Correct response to these inputs is a zero -parallax output (null) from elevation resolvers B2 and B5 (TEST C and E , fig . 3.1-1 ) , measured in the AZand EL-COMPUTER positions of the ERROR switch, and zero-position mechanical outputs at the parallax computer indicators and at the elevation vernier ring. In addition to these tests, the zero check also insures dc balance in the IHIPIR error modulators by grounding their inputs and checking the outputs (TEST A and H , fig. 3.1-1 ) for null , measured in the AZ-and EL- ELECTRO-

(60° ) , the correct azimuth parallax is exactly four times the elevation parallax . This is because , for equal azimuth and elevation test angles , the only difference between the two parallax signals is that the azimuth channel divides by the cosine of the test angle ( = 0.5 ) while the elevation channel multiplies by this factor. The adjustments for parallax control the signal drive amplitudes to the two resolvers positioned by the IHIPIR-to -target servos . The static test also checks the output of the IHIPIR error modulators (TEST A and H , fig . 3.1-1 ) with fixed dc inputs , measured against a fixed fraction of the comparison reference in the AZ- and EL-ELECTRONIC CONTROL positions of the ERROR switch . The adjustments for IHIPIR error control the output amplitudes of the modulators .

3.1-21 .

Check Dynamic Position (Steps 15 and 16)

NIC CONTROL positions of the ERROR switch .

Here the dynamic command , obtained from test synchro B1 oscillator by test motor B2 , is applied

3.1-20.

to both IHIPIR -to -target servos and both antenna servos. As in the normal test (par . 3.1-19 ) , the

Check Static Position (Steps 8, 9, 10, 11 , 12 , 13, and 14)

parallax and IHIPIR error inputs to the summing networks are zero , so the ERROR meter monitors This check inserts 1065 -mil commands (synchro reference on 1 of 3 stator leads ) at the points that received the 0-mil commands in the previous step , as well as injecting the synchro reference as a simulated D/R signal to the azimuth resolver . The correct response to these inputs is a 1065 -mil de-

Section V.

3.1-22 .

error is acceptably low and constitutes a test not only of the servos but also of the antenna drive train .

TRANSMITTER AND MODULATOR POWER SUPPLY WEEKLY CHECKS (Table 3-22 )

Purpose

These steps check the transmitter and modulator power supply operating circuits , and tuning range. 3.1-23.

total input error to each servo ( at TEST B , G , D , and F , fig . 3.1-1 ) . The check insures that dynamic

parameters ,

protection

Check Interlock (Steps 1 and 2)

This step orients the antenna to a position convenient for inspection of the receiver-transmitter and modulator power supply, connects the rf test

cable for use in the rf power check , and checks that the door interlock switch interrupts the 28vdc interlock when the modulator power supply door is opened . Door actuated switches short the magnetron high-voltage power supply output to ground . Overriding the interlock switch enables radiating for the following step. The SHUNT CURRENT and RECT CURRENT meter relays respectively protect against excessive reverse current following the modulator pulse due to pulse load mismatch, and excessive average current through

3.1-5

TM 9-1430-529-12-1

C12

the modulator power supply . The red needle settings determine the maximum currents permitted by the meter relays . Finally, we open the receivertransmitter door and observe that the waveguide

3.1-25 .

Check Radiate (Steps 4 , 5, 6 , 7, 8 and 9)

This step places the IROR in radiate , insures that

air pressure is within specified limits to insure that there are no air leaks .

critical currents and voltages are within specifications , and checks rf power. Steps 7 and 8 test overcurrent sensing and memory functions of the

3.1-24.

Check Keep- Alive Power Supply Current (Step 3 )

meter relays and overload stepping relay K9 . Step 7a simulates a condition of repeated shunt overcurrent, first cycling the transmitter out of radiate

This step provides a check on both the tr tube

twice , as overcurrent relay K3 momentarily interrupts the 28 -vdc interlock twice. The third inter-

and the keep-alive supply by measuring the current through the tr tube . In order to get a normal current reading , the applied voltage must be normal as

holds the interlock path open . Steps 8a and 86 check the overcurrent sensing function of the RECT CURRENT meter in the same manner.

well as the impedance of the tr tube.

Section VI.

3.1-26.

RANGE INDICATOR WEEKLY CHECKS (Table 3-23 )

Purpose

3.1-28.

These checks insure that the range indicator controls are adjusted correctly .

3.1-27.

ruption then requires a reset (step 7c ) as the overload stepping relay advances to position 4 and

Check Sweep (Steps 1 , 2 , 3 , and 4)

This step adjusts the display intensity , focus , and position .

Check Range Marks (Step 5)

This step checks the height and spacing of the range marks . Either range mark oscillator instability or sweep generator nonlinearity can cause uneven mark spacing.

3.1-29.

Check Expand (Step 6)

This step makes sure that the indicator sweep expansion circuit operates .

Section VII .

3.1-30.

RECEIVER WEEKLY CHECKS (Table 3-24)

Purpose

These steps check the receiver mixer crystals , adjust gain , determine noise figure , and check the local oscillator and AGC functions.

3.1-31 .

Check AFC - 1 - CR1

Crystal Current

(Step 1 ) This step checks dc current through CR1 in the AFC balanced mixer. Since crystal current is a

to keep this current at some constant value , determined by the CRYSTAL CURRENT control , over the entire frequency range . Therefore , this step is also a test of the AGC loop which includes CR1 , the crystal current coupling circuit in the AFC amplifier , the ferrite attenuator control , and the ferrite attenuator . If the CRYSTAL CURRENT control is unable to bring the current within range, it is likely that the local oscillator klystron repeller voltage is not being properly controlled

function of local oscillator power output , checking current over the entire transmitter tuning range permits an evaluation of the "flatness " of the local

by the AFC loop , causing a low klystron output The that cannot be compensated for by AGC . AFC alinement check referred to , will correct proper repeller voltage control. Note that the CR2 ,

oscillator , coupling circuits , and mixer . Because of the wide tuning range required , the IROR local oscillator has an AGC loop to improve flatness , and

CR3 , and CR4 currents depend on the information CR1 feeds to the AGC loop . Consequently , even if the correct indications are obtained in this

thus maintain optimum mixer efficiency and noise figure . AGC is active when the ATTENUATOR CONTROL switch is set to AUTO . The loop is controlled by the dc current in CR1 and attempts

step , CR1 is still suspect if the following three

3.1-6

steps all show significant and similar crystal current deviations in frequency .

C12 3.1-32.

TM 9-1430-529-12-1 Check AFC- 2 - CR2 Crystal Current (Step 2)

This step checks CR2 current over the entire transmitter tuning range , and is similar to the previous step except for the fact that CR2 is not a part of the AGC loop. 3.1-33.

Check REC- 1 - CR3 Crystal Current (Step 3)

This step checks CR3 current over the tuning range and is similar to the previous step . 3.1-34.

Check REC - 2 - CR4 Crystal Current (Step 4)

Except for the crystal checked , this step is identical to the previous one.

3.1-35 .

Check Noise Figure (Step 5)

This step determines the degradation in signal -tonoise ratio undergone by returns passing through the receiver. The determination is indirect , and the result , in db , is displayed on the TEST meter . A numerically low indication shows that the receiver adds little noise of its own to incoming signals .

The portion of the receiver tested in the

noise figure check is the signal balanced mixer , and

Section VIII .

3.1-37.

cascade V1 -V2 in the preamplifier . The measuring device for this check consists of IF preamplifier stages V3 and V5 , the noise figure amplifier , and the TEST meter , which is connected to the noise figure amplifier output in the SET and READ positions of the TEST switch . The gain of the measuring device is controlled by the NOISE FIGURE SET and IF GAIN controls. Since the measurements must be linear , IF gain is increased if necessary only when the noise figure amplifier is operating at maximum gain . This avoids the possibility of overdriving the noise amplifier . The meter output circuit of this amplifier consists of a biasing network of such characteristics that the TEST meter operates as a voltmeter for the detected noise at the V7 output , with a zero (SET line) to full-scale range of +4.5 to +18 vdc. Thus , the SET line indication shows a specified receiver noise output , and the READ indication with the noise generator active , shows the calculated noise figure . 3.1-36.

Check IF Gain (Step 6)

This step adjusts the gain of the last two stages of the IF preamplifier. The IF GAIN control determines gain by setting the quiescent level of the STC voltage output of the control-detector. The red-line TEST meter indication shows a specified video noise output for no receiver input .

RADAR PERFORMANCE WEEKLY CHECKS (Table 3-25)

Purpose

These steps check the automatic frequency control (AFC) , sensitivity time control ( STC ) , and detector back bias (DBB) function of the IROR . We observe ground clutter and noise on the range indicator screen to insure that the radar is opera-

duced peak in the ferrite attenuator rotation current monitored at J8 and J4 . These procedures are performed with the transmitter in standby to prevent the AFC from affecting the repeller con-

tional and ready for battery integration .

trol voltage adjustments . The next portion of the alinement consists of disabling the AFC to obtain a search , checking local oscillator output over the entire search-tuning range of the klystron , and ad-

3.1-38 .

justing the PICK UP ADJUST , HOLD ADJ, and GAIN ADJ controls for optimum AFC locking .

Check Automatic Frequency Control (AFC) (Step 1 )

This step insures that the AFC loop locks on and maintains the correct local oscillator frequency . It also checks the presence of returns or clutter over the transmitter tuning range . A check of transmitter tuning speed is also included . The AFC alinement checks , referred to first , balance cathode followers V1A-V1B . Next we zero the no -signal

The radar

is then repositioned

for

returns or

clutter , and local oscillator performance is rechecked over the transmitter tuning range . The final alinement procedure maximizes receiver response to returns by adjusting the AFC discriminator center frequency to that of the IF circuits . 3.1-39.

Check Sensitivity Time Control (STC ) (Step 2)

output of repeller cathode follower V4A and adjust the upper and lower repeller control voltages for maximum klystron power output at the upper and lower tuning limits, as shown by an AGC-pro-

This step checks that the STC is correctly adjusted to attenuate near clutter so that shortrange targets will be visible above it.

3.1-7

TM 9-1430-529-12-1 3.1-40 .

Check Detector Back Bias (DBB)

(Step 3) This step makes sure the DBB option functions correctly. With DBB switched in , those portions of

3.1-8

C12 the video where the system noise level is constant or decreasing for longer than 0.5 μs are greatly attenuated, while isolated impulses are not affected . This results in a decrease in average , but not peak , noise level , as shown on the range indicator.

C7

TM 9-1430-529-12-1

CHAPTER 4

MAINTENANCE INSTRUCTIONS

Section I. REPAIR PARTS, SPECIAL TOOLS, AND EQUIPMENT 4-1 . General Repair parts, special tools, and equipment are issued to the using organization for operating and maintaining the IROR.

4-2. Repair Parts, Special Tools, and Equipment

maintenance of the IROR. The special equipment required for organizational maintenance of the IROR is listed in chapter 3. Repair parts are supplied to the using organization for replacement of those parts that become worn , damaged, or otherwise unserviceable , providing replacement of those parts is within their scope.

No special tools are required for organizational Section II.

SERVICE UPON RECEIPT- GENERAL

4-2.1. Scope a. When a new or reconditioned IROR of the improved HAWK system is first received by the using organization , it is the responsibility of the officer-in-charge to determine whether the materiel has been properly prepared for service , and to insure that it is in condition to perform its assigned mission when placed in service . For this purpose , a visual inspection will be made of all

fer to the system logbook and appropriate manuals all the information found on such tags or indicators . Check the serial number of the IROR book .

with the number recorded in the log-

c. Make

certain that all hardware is secure ,

cabling not exposed .

frayed,

and

cable

conductors not

d. Make sure that all major component parts major components , assemblies, subassemblies , and accessories to make sure that they are present , properly assembled , secured , and clean . Equipment records will be checked to determine that the major item has been correctly adjusted and lubricated . b. This chapter presents general and detailed services to be performed upon receipt of the IROR. Service upon receipt depends upon the is level of preshipment processing , which explained in paragraph 4-2.3.

are present. Check to insure that leveling jacks are present and in good condition . Look for missing or loose bolts , screws , and rivets . Check the shielding and ground connections . Make sure the nameplates are present and secured in their proper places . e. Check all items of equipment to determine whether they are in good operating condition . Check to determine that all exterior surfaces are intact and properly assembled, noting excessive grease, oil , or foreign matter that might interfere with proper operation .

4-2.2. General Service Procedures f. Visual checks of the equipment give an indication of its condition . Steps ( 1 ) through (23 ) a. TM 38-750 lists the applicable forms , records , and reports to be used for inspection . Examine the logbook for the IROR to determine the general maintenance background of the materiel .

below list these checks . Any deficiencies noted should be corrected before operation of the equipment . (1 )

b. Check all tags attached to the materiel for information pertaining to lubrication required before the adjustment of parts . Check the tags , or other indicators of used or reconditioned equipment, for any changes . Immediately trans-

Check the materiel against the accom-

panying lubrication tion .

orders

for proper lubrica-

( 2 ) Make sure that sealing is complete on all sealed parts of the equipment . 4-1

TM 9-1430-529-12-1 (3 )

C9

Check all indexes, scales , division and

nameplates , warning, danger, and caution plates to see that they are clear and easy to read.

to

(4) Look for bare spots or damaged finish see if any unprotected metal surfaces are

(16 )

( 17 )

all

the

Check the

dry

batteries

from

capacitors for evidence of

heating ( discoloration , melted wax ). (18 )

exposed to corrosion or rust . Determine whether a touchup or complete refinishing job should be

Remove

equipment not in use.

swelling,

Check the resistors

cracked ,

or

for discoloration,

cracks, breaks , and signs of overheating.

accomplished . (5 ) Inspect movable metal parts such as bearings , hinges , sliding surfaces, and latches to determine whether they are clean , properly lubricated , and free from rust and foreign matter .

(19) Look for indications of burned , pitted , or corroded contacts on switches , relays , and circuit breakers . Check the contacts for cleanliness . Make sure the switch detents have a positive mechanical action .

(20 ) (6 ) Look for moisture or rust producing conditions .

(7) Check the service tags guishers for current servicing . ( 8 ) Make sure flammable authorized containers only .

of fire extin-

are

Look for

excessive

or uneven

be

clean

and

(21 ) Check the wiring and cabling for proper support where required . Runs should be short and have stress on leads .

liquids

should

parts

without cracks or breaks .

only

enough slack to

relieve

in (22 )

(9)

Ceramic

wear,

play , or backlash in geartrains, bearing surfaces , dials and knobs .

Examine the wires near terminals for

frayed or loose strands that can cause shorts . (23 ) Visually inspect the lenses, prisms , reticles , and windows to make sure that they are free of scratches , pits , dirt , and chips which

(10 ) Check the contacts of connectors for looseness , corrosion , or dirt .

would interfere with the optical performance of the equipment . Any breakdown or excessive discoloration of cement between elements of the

(11 ) Look for solder filings , stray bits of solder, and cold- solder joints.

compound lenses which affects optical performance in the field is cause for rejection of the instrument . Do not base rejection on the lack

( 12 ) See that the solder connections are bulky with excess solder but are neat ,

of reflection -reducing coating for the optical elements of instruments already in the field . There must be no parallax, abnormal , or double vision . If errors cannot be brought into specified tolerances as determined by the system alinement requirements , the optical instrument is considered unserviceable .

not

smooth and shiny, and coated with anti-fungus varnish .

( 13 ) Inspect all the insulation for signs of discoloration , carbonization , mildew, or fungus growth .

( 14 ) See that there is no chafing, or possibility of chafing, of the insulation . (15 ) Look for bent, broken , loose , or missing contacts on plug-in components . Make sure that the contacts are clean .

4-2

g. Remove the tape from all glass surfaces, such as meter windows , reflectors , instrument dials , lights, and windows over cathode-ray tubes.

h. Remove the sealing tape from vents , doors, covers , and other tape -sealed areas.

C9

TM 9-1430-529-12-1 Section III.

SERVICE UPON RECEIPT OF THE IROR

4-2.3. General

b. Motor-Generator

Service upon receipt of the IROR depends upon whether it has been processed for overseas, extended storage , or use within 30 days by the using organization . The level at which an item is shipped is clearly marked on it . The main levels of processing for shipment are presented in subparagraphs a through c below.

Assembly.

Remove

the

protective tape , if any , from the cover. Remove the cover by releasing the snap fasteners along the bottom edges . Remove the desiccant units and securing tape . Any barrier material used with the units for shipping purposes should be removed . Remove the humidity indicator on or near the motor . If the motors are shockmounted but have been secured for shipment , remove

a. Level A military package provides preservation and packaging for adequate protection against corrosion , deterioration , and physical damage during shipment , handling, indeterminate storage , and world-wide redistribution .

the securing devices and place the motors in the shockmounted position . Replace

the cover and secure it in the locked position with the snap fasteners . c. Radar Set console should

b. Level B limited military package furnishes preservation and packaging for adequate protection against corrosion, deterioration , and physical damage during multiple domestic shipments , handling, and covered storage .

Group. All chassis within the be locked in their respective

positions with the turnlock studs on the individual panels . Check the cover locking device for proper operation . Remove the protective tape from the dials and knobs . Remove the desiccant units and associated packaging material located near the motor area . Remove the

c. Level C minimum military package prepares for preservation and packaging for adequate protection against corrosion , deterioration , and physical damage during shipment from the supply source to the first receiving activity for immediate use . The supplier's commercial practice will be accepted when such practice meets the requirements of level C.

humidity indicator on or adjacent to the inside area of the console unit cover.

d. Radar Set Group Exterior. If the electrical connections are taped , remove the tape from the exposed ends of the cables , harnesses , plugs , cable openings , sockets , receptacles , terminals , junction boxes , and electrical openings . Remove the securing wire from the ground rod attached to the console exterior . Do not confuse securing

4-2.4. Service Upon Receipt of the Improved Range - Only Radar ( IROR )

wire with the heavy ground wire attached to the rod . If the metal surfaces are preserved with . oil or grease , remove excessive amounts .

CAUTION e. Pedestal.

desiccant in the conical section of the pedestal blower area. Remove the humidity indicator fixed to the lower inside rim of the blower

Care should be exercised in performing service-upon-receipt procedures because many parts damage easily . Damage or exposure to bad weather may require a complete overhaul or cause the equipment to become inactive .

access port frame . The humidity indicator might be located in some other position within the blower area, but is always as far away as possible from the desiccant .

Refer to paragraphs 4-2.1 and 4-2.2 for general service-upon-receipt information . In addithe procedures listed in subparagraphs a tion , through below must be followed upon receiving the IROR. a. Trailer. Refer to TM 9-2330-235-14 service upon receipt of the M514 trailer.

Remove the barrier material and

for

f. Azimuth Mil Ring Indicator. Remove any tape or cotton covering the mil ring indicator .

g. Elevation Mil Indicator. Remove any tape or cotton covering the mil indicator . Remove any padding between the mil indicator and the elevation head assembly.

4-2.1

TM 9-1430-529-12-1

C10

h. Telescope Mount. Remove any padding or tape covering the telescope mount . i. Fender

Wells .

Remove

the

j. Fire Extinguisher. Remove the fire extin guisher from the packaging container . Remove all tape and padding material .

desiccants ,

humidity indicators , web strapping, taped-onpackaged items , tools , equipment, and chemically neutral paper . Check the contents . Replace the tools and equipment in the assigned fender wells .

k. Protective Covers. Remove the protective covers on the IROR antenna .

1. Check

Procedures.

Perform

the

periodic

check procedures for the IROR (chapter 3 ).

Section IV. LUBRICATION

4-3. Lubrication Chart

4-4. General Lubrication Instructions Lubrication

Lubrication

chart

LC

9-1430-529-12

intervals

are based on

normal

pre-

scribes lubricating instructions as to location , intervals, and proper materials for the IROR. It also contains the specific procedures to be performed.

NOTE Refer to TM 9-2300-235-14 for preventive maintenance checks and services and lubrication instructions for trailer M514.

8-hour day operation . These intervals may be reduced to compensate for abnormal operation, severe conditions, or the discovery of contaminated lubricants . During inactive periods the intervals may be extended, commensurate with adequate preservation . After washing or fording, the IROR must be lubricated . Parts should be cleaned with volatile mineral spirits, paint thinner (TPM), or dry cleaning solvent ( PP - S- 861B) . All lubrication points should be dried before applying the lubricant.

Section V. MAINTENANCE SERVICES

4-5. General

4-6. Azimuth Gear Assembly Backlash Check

This section contains the information necessary for the maintenance of the IROR. For instructions not contained in this 9-1425-525-12-4.

manual,

refer to TM

WARNING

Do not perform any maintenance on the IROR unless the radar is in the localstandby condition or the MAIN POWER switch is set to OFF .

4-2.2

WARNING

Before performing maintenance on the azimuth gear assembly , make certain the MAIN POWER switch is set to OFF .

NOTE The following procedure checks the backlash in the geartrain assembly of the azimuth data assembly, azimuth drive assembly, and final drive assembly .

TM 9-1430-529-12-1

C10

LUBRICATION CHART

LC

9-1430-529-12 Supersedes LO 9-1430-529-12, 28 August 1972.

RARAR SET AN /MPQ- 51 IMPROVED HAWK AIR DEFENSE GUIDED MISSILE SYSTEM

Intervals are based on normal operations. Reduce to compensate for abnormal operation, severe conditions or contaminated lubricants. During inactive period, intervals may be extended commensurate with adequate preservation. Relubricate after washing and fording.

Warning: Make certain the MAIN POWER switch is set to OFF before applying lubricant to gears. Warning: The dry-cleaning solvent referred to below is flammable. Keep away from heat and open flame. Clean parts with dry-cleaning solvent ( PD-680, Type 1 ). Dry before lubricating.

INTERVAL - LUBRICANT

ELEVATION DRIVE GEAR TRAIN (See note 1).

S GL

PEDESTAL TILT JOURNAL (See note 4.)

M MIL-G-23827

AZIMUTH INTERMEDIATE DRIVE GEAR ASSEMBLY (See nots 2.)

M MIL-G-23827

AZIMUTH FINAL DRIVE GEAR ASSEMBLY (See note 2.)

LUBRICANTS - ALL TEMPERATURES OAI –

OIL, lubr., aircraft instrument

MIL-G-23827 - GREASE , aircraft instrument, gear, and screw GL

INTERVAL

9-207 TM to

-KEY-

For Arctic Operation refer

M MIL-G-23827

M -Monthly S- Semiannually

GREASE, aircraft instrument

MS 166219 Figure 4-0.1. Lubrication chart (sheet 1 of 2).

4-2.3

TM 9-1430-529-12-1

C10

NOTES

1. ELEVATION DRIVE GEAR TRAIN -To reach elevation drive gear assembly, remove access plate from rear of elevation head. Apply a thin coat of lubricant, MIL-G-23827, to teeth of gear. Do not mix graphite with lubricant. 2. AZIMUTH INTERMEDIATE AND FINAL GEAR ASSEMBLY - To reach azimuth intermediate drive gear assembly, remove pedestal cover. To reach azimuth final drive gear assembly, remove pedestal bottom cover. Apply a thin coat of lubricant, MIL-G-23827, to teeth of gears. Do not mix graphite with lubricant.

3. OIL CAN POINTS Monthly, lubricate pedestal lifting eyes, and all cabinet latches and hinges with OAI. 4. PEDESTAL TILT JOURNAL - Remove journal brackets and apply a thin coat of GL to shaft blocks and brackets. 5. DATA GEARS - Do not lubricate. 6. TRAILER LUBRICATION - Refer to TM 9-2330-23514.

MS 166220

Figure 4-0.1 . Lubrication chart (sheet 2 of 2).

4-2.4

TM 9-1430-529-12-1

C10

a. Check.

(5) Sight the board through the telescope, and manually rotate the antenna clockwise until the CAUTION

mechanical limit of travel is reached while holding the azimuth drive motor shaft stationary with the

The board used in this procedure must

wrench. The gear backlash, as viewed through the telescope, must not exceed the width of the board

be exactly 7.62 cm (3 in . ) wide , or a wider board with two marks 7.62 cm (3 in. ) apart may be used .

or the distance between the two marks. Repeat the check several times to insure a correct reading. Make sure that the vertical crosshair of the tel-

( 1 ) Position a 7.62 cm ( 3 in . ) wide board upright 91.5 m ( 300 ft ) from the radar. Place the board, as close as possible , at zero mils azimuth with respect to the IROR antenna . NOTE

escope is alined with the left-hand edge (or the left-hand mark) of the board each time the check is repeated.

b. Adjustment.

If terrain features prohibit positioning the board 91.5 m ( 300 ft ) from the radar, place it at the most convenient location and measure the distance between the telescope and the board. Place two marks on the board an inch apart for every hundred feet of distance .

( 1) If the backlash is not within tolerance (a above) , have the direct-support personnel perform the azimuth gear assembly backlash adjustment procedure.

( 2) If the backlash is within tolerance, remove ( 2 ) Install the alinement telescope .

(3 ) Manually rotate the antenna counterclockwise until the vertical line on the telescope is alined with the left-hand edge or the left-hand mark of the 7.62 cm ( 3 in. ) board .

the open-end wrench and close the access cover ( 1). Remove and store the alinement telescope.

4-7. Elevation Gear Assembly Backlash Check

NOTE The key numbers shown below in parentheses refer to figure 4-1. WARNING

(4) Open the access cover ( 1 ) and insert a 5/8inch open-end wrench ( 3) through the opening in the generator bracket (2 ) . Place the wrench on the self-locking nut of the motor shaft and hold the

Before performing maintenance on the elevation gear assembly, make certain the MAIN POWER switch is set to OFF .

|

shaft stationary . a. Check.

CAUTION

The board used in this procedure must be exactly 7.62 cm ( 3 in . ) wide, or a wider board with two marks 7.62 cm (3 in . ) apart may be used. (1 ) Position a 7.62 cm (3 in . ) wide board horizontally 91.5 m ( 300 ft ) from the radar . Place the board, as close as possible , at zero mils ele2

vation with respect to the IROR antenna.

3 NOTE MI 65315

1-Access cover 2-Generator bracket 3-5/8-inch open- end wrench

If terrain features prohibit positioning the board 91.5 m ( 300 ft ) from the radar, place it at the most convenient location and measure the distance between the telescope and the board . Place two marks on the board an inch apart for every hundred feet of distance.

Figure 4-1. Locking the azimuth drive motor. (2) Install the alinement telescope.

4-2.5

TM 9-1430-529-12-1

C13

(2) Remove the attaching hardware ( 1, 2, and

(3) Manually adjust the antenna until the horizontal line on the telescope is alined with the bottom edge (or mark) of the 3-inch board.

3) and the dehydrator (4).

(4) Remove the access cover from the end of the elevation drive motor, and insert a 1 / 16-inch thick screwdriver into the slot on the motor shaft to hold the shaft stationary.

(9).

(5) Sight the board through the telescope, and manually elevate the antenna until the mechanical

(3) Release the tie bolts (7) and the brackets

(4) Remove the end plates ( 10) . (5) Remove the gaskets ( 11 and 12) , screens ( 13), and pads ( 14) from the tube ( 15).

(6) Empty the desiccant from the tube.

limit of travel is reached while holding the shaft of the elevation drive motor stationary. The gear

NOTE Do not use solvent to clean parts.

backlash, as viewed through the telescope, must not exceed the width of the board, or the distance

(7) Clean the tube with water and/or a wire between the two marks. Repeat the check several times. Make sure that the horizontal crosshair of

brush to remove all residue and dry tube thoroughly.

the telescope is alined with the bottom edge (or mark ) of the board each time the check is repeated.

(8) If the tube is heavily pitted or excessive residue remains , install a new pressurization unit. (9) Using repair kit 5420434 , replace the pads, screens, and gaskets ( 14, 13, 12 and 11 ).

b. Adjustment. ( 1 ) If the backlash is not within tolerance (a above), have the direct support personnel perform the elevation gear assembly backlash adjustment procedure. (2 ) If the backlash is within tolerance, install the access cover on the elevation drive motor, and remove and store the alinement telescope . 4-8. Replacement of Pressurization Unit 10043943 Dehydrator Cartridge Desiccant The procedures below provide instructions for desiccant replacement in the Lear Siegler pres-

( 10) Bond the two gaskets ( 11) to the end plates with adhesive ( 8040-00-543-7170 ) . (11 ) Remove the plug, spring, collar, and ball ( 16 through 19) from the end plate. (12) Clean the plug threads and apply antiseize compound MIL-T-22361 to the threads before installing the plug. ( 13 ) Clean the valve area with water and replace the spring, ball, and collar with new items from the kit.

surization unit and the Great Lakes Mfg. Corp. pressurizing unit. Both pressurizing units have the same part number ( 10043943) . However, each unit employs a specific repair kit. Identify the pressurization unit in the radar to determine the

NOTE Desiccant should not be exposed to atmosphere for more than five minutes. ( 14) Assemble one end plate , parts and tube.

procedure and kit to use. a. Lear Siegler Pressurization Unit.

( 15 ) Fill the tube with 12 ounces of desiccant furnished in kit 5420434. (16) Assemble the second end plate and parts.

WARNING (17) Assemble two tanks, brackets, bolts, nuts, and washers. Before performing maintenance on the pressurization unit, make certain the MAIN POWER switch is set to OFF .

( 18 ) Mount the assembly on the chassis and install in the base of the antenna pedestal .

Remove the pressurization unit from the base of the antenna pedestal.

( 19 ) Remove the desiccant cartridge from the humidity indicator (7, fig . 2-7) located on the receiver-transmitter group, and replace with a new cartridge which is stored behind the control-

NOTE The key numbers shown below in parentheses refer to figure 4-2, unless otherwise specified. (1) Remove the lines connecting the desiccant tank and air tank to the compressor.

indicator panel (fig. 2-1).

(20) Energize the radar and check that the compressor operates for not more than five minutes, and does not operate again for at least 15 4-3

TM 9-1430-529-12-1

7

12 13 8

14 этой

.de

18

16

15

10

To h

6

themejalgs 60 0 EAPEADO Inpɔɔies Smbysing

Дай по

2 ΠΟΙ has 9

AW

MI 65316

1- Nut 2-Washer 3-Screw 4- Dehydrator 5-Nut 6-Washer

7-Tie bolt 8-Washer 9-Brackets 10-End plates 11-Gaskets 12-Gaskets

Figure 4-2. Pressurization unit (Lear Siegler).

13-Screens 14-Pads 15-Tube 16-Plug 17-Spring 18 -Collar 19-Ball

TM 9-1430-529-12-1

C13 minutes. If these requirements are not met, check the waveguide connections for leaks using kit 5420642. If no leaks are found, check the pressurization unit for leaks due to damaged packing. See pressurized microwave system components leak detection check (par. 4-11). b. Great Lakes Pressurization Unit.

WARNING

Before performing maintenance on the pressurization unit, make certain the MAIN POWER switch is set to OFF. Remove the pressurization unit from the base of

( 10) Assemble valve L1 and the two cylinders. ( 11 ) Connect the electrical connector and intake line, and install the unit in the base of the antenna pedestal. ( 12) Remove the desiccant cartridge from the humidity indicator ( 7, fig . 2-7) located on the receiver-transmitter group, and replace with a new cartridge which is stored behind the controlindicator panel (fig. 2-1).

( 13) Energize the radar, and check that the compressor operates for not more than five minutes, and does not operate again for at least 15 minutes. If these requirements are not met, check the waveguide connections for leaks using kit 5420642. If no leaks are found, check the pres-

the antenna pedestal.

NOTE The key numbers shown below in parentheses refer to figure 4-3 unless otherwise specified.

surization unit for leaks due to damaged packing. See the pressurized microwave system components leak detection check (par. 4-11) .

4-8.1 . (1) Disconnect the connector (2), and remove the intake line from valve L1 (3).

Replacement of Pressurization Unit 11566371 Dehydrator Cartridges NOTE

Repair kit 5423704 is provided for replacement of the dehydrator cartridges.

WARNING a.

A spring is retained by valve L1. Hold the valve against the chamber when disassembling to avoid a flying spring. (2) Remove valve L1 from the cylinder (4).

Removal. (1 ) Deenergize the IROR to shutdown (par. 3-

16). (2) Remove the pressurization unit from the receiver transmitter. (3) Remove the dehydrator cartridges and pre-

(3) Remove the attaching hardware ( 5 and 6) and separate the two chambers.

(4) Remove the packing, spring , disc, screen, and packings (8 through 12) from the cylinder. (5) Remove the desiccant from the cylinder. NOTE Do not use solvent to clean parts. (6) Clean the cylinder with water and/or a wire brush, removing all residue. (7) Dry the cylinder thoroughly. If it is heavily pitted or if excessive residue remains, install a new pressurization unit. (8) Using kit 5420433, replace the screen ( 11), packings ( 12), packing (8) , and packing ( 13 ). NOTE Desiccant should not be exposed to the atmosphere for more than five minutes. (9) Fill the cylinder with desiccant furnished in kit 5420433.

formed packings ( 1 through 4 , fig. 4-2.2.) . b. Installation. CAUTION Do not expose dehydrator cartridges to the atmosphere for more than 5 minutes . ( 1) Apply silicon grease MIL-G -4343B to preformed packings . (2) Apply antiseize compound MIL- L-60326 to the threads of the dehydrator cartridges. (3) Install the preformed packings and dehydrator cartridges ( 1 through 4, fig 4-2.2). (4) Install the pressurization unit in the receiver-transmitter . Installation Test. Energize the IROR to standby (par.3-14). Ifthe pressurization unit does not cycle within the limits specified , test the waveguide connections for leaks using a soap and water solution. If no leaks are found , test the pressurization unit for leaks caused by damaged packings .

4-5

C4

TM 9-1430-529-12-1

2

O

с

10

11

12 00

17

CO

13

15

16

MS 154690

10-Dust cap 11 -Retaining ring 12 -Disc 13-Pad 14 - Disc 15-Retaining ring 16-Dust cap 17-Cylinder

1- Nut 2-Lockwasher 3-Head 4-Head 5-Flat washer 6-Bolt 7-Gasket 8-Cartridge 9 -Gasket Figure 4-2.1. Humidity indicator.

4-6

C13

TM 9-1430-529-12-

1

СИМИЯАМ

О Ө с

1

3

2

00 000 00

ob

MS

312393

1- Dehydrator cartridges 2-Preformed packing 3-Preformed packing 4-Preformed packing

Figure 4-2.2.

Pressurization unit 11566317.

4-6.01

TM 9-1430-529-12-1

C13

4-8.2. Replacement of the Humidity Indicator Desiccant

NOTE The key numbers shown below in parentheses refer to figure 4-2.1.

WARNING

Before performing maintenance on the humidity indicator, make certain the radar is in the local-standby condition or the MAIN POWER switch is set to OFF .

CAUTION

a. Disassembly. (1 ) Remove the humidity indicator from the IROR by disconnecting the air hose from the indicator head . Remove the indicator from beneath the receiver-transmitter cabinet.

cator cartridge are delicate . Use extra care in the disassembly and assembly of cartridge.

Use or

(2 ) Firmly grasp the indicator and carefully loosen and remove the three nuts, lockwashers , and

pliers

flat washers ( 1 , 2 and 5 ) and bolts (6 ) from the indicator .

(4)Ca

(3 ) Remove the gaskets ( 7 and 9 ) and the Component parts of the humidity indi-

The dus on new storage . taped in returnin

cartridge ( 8 ) from the heads ( 3 and 4 ) . Inspect the gaskets and the cartridge for cracks or other damage , and replace the cartridge and gaskets if damage exists .

thecy (5) Re thecy for crac

(6)R cylind 6. Assem

(1)F L-D-371

htly tap atthe d Fillthe

(2)R 13.12an

Keep store

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at wash

C

4-6.02

C10

TM 9-1430-529-12-1 NOTE

rom

The dust caps ( 10 and 16 ) will only be present on new cartridges and on cartridges in spares storage. The dust caps must be replaced and taped in place with waterproof tape prior to returning the cartridge to storage.

(5 ) Firmly grasp the indicator and in a clockwise sequence carefully tighten the three bolts (6 ) . (6) Inspect the assembled indicator for any cracks resulting from assembly. Replace the cartridge if necessary . (7) Install IROR .

Menest

the

humidity

indicator

on the

CAUTION 4-9. Pedestal Brush Replacement and at

Use only the appropriate retaining-ring

ers,

pliers for retaining ring removal .

Slipring Cleaning

rom

and : Dect3

(4) Carefully remove the retaining ring ( 11 ) from the cylinder ( 17 ). (5) Remove the disc and pad ( 12 and 13 ) from the cylinder. Inspect the disc , pad and cylinder for cracks . Replace the cartridge if any cracks exist. (6) Remove the contaminated desiccant from the cylinder. Clean all parts and dry thoroughly . b. Assembly. (1 ) Fill the cylinder with new dry desiccant MIL-D-3716 , type 4, grade H ( 6850-00-290-0042 ) . Lightly tap the cylinder on a hard surface to compact the desiccant and add desiccant as required to fill the cylinder .

WARNING

Before performing maintenance on the pedestal sliprings and brushes , make certain the antenna SAFETY SWITCH is set to SAFE and the MAIN POWER switch is set to OFF . a. Removal of the Upper Brushes.

NOTE The key numbers shown below in parentheses refer to figure 4-4.

(2 ) Replace the pad, disc, and retaining ring (13, 12 and 11 ). ( 1) Remove the cover and door assembly to gain access to the upper sliprings. NOTE (2) Disengage the AZIMUTH STOW lock ( 1).

Keep unused desiccant tightly covered and store it in a cool dry place . (3 ) Replace the cartridge ( 8 ) and gaskets (7 and 9) between the heads ( 3 and 4).

CAUTION

(4) Install and finger tighten three bolts and flat washers, lockwashers, and nuts (6 , 5 , 2 , and 1 ).

Brushes must be kept in order so they

CAUTION

can be returned to their original positions. Do not attempt to remove the plate and brush holder ( 4) with the brushes assembled in the holder.

In the next step, do not place unnecessary pressure on the cartridge by tightening any one bolt more than the others in the tightening sequence .

(3) Remove and inspect each brush (2). Discard all damaged brushes, or any brush worn below 3/8 inch . (4) Disconnect the conductors (3) and remove the plate and brush holder (4).

4-6.1

C4 TM 9-1430-529-12-1

12

10

1 3 0

MI 65317 1- Screw 2-Connector 3-Valve L1 4-Cylinder 5-Screw

6-Washer 7-Cylinder 8-Packing 9-Spring 10-Disc Figure 4-3. Pressurization unit (Great Lakes).

4-6.2

11 -Screen 12-Packings 13-Packing

TM 9-1430—529—12—1

C16

(4) Remove and inspect each brush (5). Discard all damaged brushes , or any brush worn below 3/8 inch.

3

2

3/8 IN.

(5) Remove the support and brush holders (6 and 7) as a unit and then tie them out of the way to permit access to the sliprings. c. Cleaning. ( 1) Stuff a clean cloth at the bottom of slipring 42 (upper slipring ) to absorb any residue that might fall into the bearing. (2 ) Brush off any residue that might have settled on the slipring barriers. Rotate the pedestal one revolution to completely clean the barriers. (3) Starting at the top with slipring 1, hold a clean, lint-free cloth, saturated with isopropyl alcohol MIL-T-10428 ( 6810-00-286-5435 ), firmly against both sides of the slipring barrier and rotate the pedestal at least two revolutions .

•

(4) Repeat step (3) above to clean the remaining sliprings, including the lower sliprings on the cable and ring assembly (8 , fig. 4-5) . Insure that a clean area of the cloth is used on each slipring

O

barrier and that the pedestal is rotated at least two revolutions.

H

MI 65318

(5 ) Thoroughly clean the upper and lower brush holders with a clean cloth saturated with isopropyl alcohol.

1-AZIMUTH STOW lock 2-Brush 3-Conductor 4-Plate and brush holder Figure 4-4. Removal of the upper brushes.

( 6 ) Have DS or GS personnel check the surface resistance from ring to ring through the connectors . (7)

Remove

the

cloth

from the bottom

of slipring 42 . b. Removal of the Lower Brushes.

NOTE The key numbers shown below in parentheses refer to figure 4-5 , unless otherwise specified.

d. Installation of the Brushes. ( 1 ) Install the plate and brush holder and reconnect the conductors (4 and 3, fig. 4-4).

(1) Remove both covers ( 1 and 2) as a unit.

(2) Untie and install the support and brush holders (6 and 7, fig. 4-5).

(2) Remove the pressurization unit (3). (3) Remove the reservoir tank and mounting

CAUTION

plate (4).

CAUTION Brushes must be kept in order so that they can be replaced in their original positions. Do not attempt to remove the support and brush holders ( 6 and 7) with the brushes assembled in the hol-

When installed , each brush must be positioned in the holder assemblies with the indicator marking up. This mark is usually a spot of red color at the junction of the spring and the brush. (3 ) Install the upper and lower brushes at their original positions in their respective brush holders.

ders. 4-7

C13

TM 9-1430-529-12-1

10

A

*(P)10043943 (SEE NOTE)

3/8

11

14 13

B

3

12 - B

*(Q) 11566317 (SEE NOTE )

TEFE NORE : R TO APPENDIX E FOR SERIAL NUMBER EFFECTIVITY

6 7

3

3/8

- B-

2 1

MI 65319B

1-Cover 2-Cover 3-Pressurization unit 4-Reservoir tank and mounting plate 5-Brush

6-Support 7-Brush holder 8-Cable and ring assembly 9-Hexagon-head capscrew 10-Motor

Figure 4-5. Removal of the lower brushes .

4-8

11 -Plate 12-Gasket 13 -Cap 14-Brush

TM 9-1430-529-12-1

C10 (4) Manually rotate the antenna and check

4-9.2. Inspection of Elevation Drive that there is no binding and that the lower brushes ride freely in the grooves of the cable and ring assembly (8 , fig. 4-5 ).

Motor Brushes

WARNING (5) Install the reservoir tank and mounting plate , the pressurization unit, and the covers (4 Before performing maintenance on the elevation drive motor, make certain the antenna SAFETY SWITCH is set to SAFE and the MAIN POWER switch is

through 1, fig. 4-5). (6) Install the cover and door assembly on the pedestal.

set to OFF .

NOTE The key numbers shown below in parentheses refer to figure 4-5.1 .

4-9.1. Inspection of Azimuth Drive Motor Brushes

а.

Insure

that

the

EL-AMPLIDYNE

circuit

breaker on the power distribution panel is set to OFF . b. Remove the two brushes ( 4 ) from the elevation drive motor (5 ). Inspect the two brushes for excessive wear, C.

WARNING

Before performing maintenance on the azimuth drive motor , make certain the antenna SAFETY SWITCH is set to SAFE and the MAIN POWER switch is set to OFF .

and replace them if they are worn below the safe operating length as shown in figure 4-5.1. 4-10. Inspection and Replacement of MotorGenerator Brushes

WARNING

NOTE The key numbers shown below in parentheses refer to figure 4-5 .

Before performing maintenance on the motor-generator, make certain the radar is in the local-standby condition or the MAIN POWER switch is set to OFF.

a. Manually position the antenna reflector over the curb side fender well .

NOTE The key numbers shown below in parentheses refer to figure 4-6.

b. Remove cover ( 2 ) from cover ( 1 ) beneath the pedestal.

a. Insure that the AZ-AMPLIDYNE and ELAMPLIDYNE circuit breakers on the power dis-

c. Remove the pressurization unit (3) .

tribution panel are set to OFF. a. 1. Remove motor generator cover (1).

d. Remove the six hexagon-head capscrews (9) from the reservoir tank and mounting plate (4 ) . e. Position the mounting plate (4 ) to one side to expose the azimuth drive motor (10 ).

b. Remove the eight brushes (6). c. Inspect the brushes for excessive wear and replace them if they are worn below 7/16 inch. d. Install the brushes.

f. Remove the two azimuth drive motor.

brushes

( 14)

from the e. Remove the cover plates (7) and energize the motor-generator.

g. Inspect the two brushes for excessive wear , and replace them if they are worn below the safe

f. Inspect the brushes for excessive arcing.

operating length as shown on figure 4-5 .

h. Replace the reservoir tank and mounting plate , pressurization unit, and bottom cover on the pedestal .

g. Deenergize the motor-generator and replace faulty brushes if excessive arcing was observed. h. Replace the cover plates.

4-8.1

TM 9-1430-529-12-1

C11

C10

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MS 166221A 1-Plate 2-Gasket 3-Cap 4-Brush 5-Elevation drive motor Figure 4-5.1. Inspection of elevation drive motor brushes.

4-8.2

804-449 followi

C10

TM 9-1430-529-12—1

4-11. Pressurized Microwave System Components Leak Detection Check The following procedure is required for the detection and repair of air leaks in the pressurized microwave system components of the IROR. Refer to waveguide seal repair kit 5420642 ( 1430-00804-4482 ) for the items necessary to perform the following checks.

WARNING

Before performing maintenance on the pressurized microwave system components , make certain the MAIN POWER switch is set to OFF and ground all points of high potential .

4-8.3

0

TM 9—1430—529—12—1

9 e

5 7/16 IN.

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MI 65320

1-Motor-generator cover 2-Motor-generator 3-Plate 4-Gasket

5-Cap 6 -Brush 7-Cover plate

Figure 4-6. Replacement of the motor-generator brushes.

NOTE Persistent air leakage of the waveguide components or seals necessitates disassembly and replacement. User personnel will refer the materiel to direct support maintenance personnel for any replacement and adjustments of parts.

a. Inspection. ( 1) Remove the local- oscillator control amplifier (5 , fig . 1-2) from the receiver-transmitter. Open and secure the receiver-transmitter door ( 13, fig. 3-2).

4-9

C13

TM 9-1430-529-12-1

19

17

2 3 8 18 10

16

9

13

9 12

15

н и н н е п

14

1 8

MI

1-Nut 11-Shim 2-Washer 12-Adapter W11 3-Washer 13-Waveguide assembly W13 4-Local-oscillator control amplifier 14-Wiring harness W22 5-Receiver-transmitter 15-Wiring harness W21 6-Inclosure door 16-Seal 17-Horn 7-Coupling half 8-Hose assembly 18-Flange 9-Packing 19-Waveguide assembly W14 10-Waveguide assembly W12 Figure 4-7. Antenna and waveguide leak check. 4-10

65321A

TM 9-1430-529-12-1

C9 CAUTION Use care when inspecting waveguide connections to insure that waveguide

(j) Waveguide assembly W14 ( 19, fig. 4-7) (k) Waveguide assembly W5 ( 10)

(1) Mixer stage A2 ( 17)

flanges are not damaged. (m) Generator A3 (24)

(2) Inspect the waveguide components (figs. 4-7, 4-8 , and 4-9) for worn or damaged parts and air leakage.

(n) Waveguide assembly A4 ( 29) (3) Apply the solution along the entire length

(3) Check the waveguide flange assemblies (figs. 4-7, 4-8, and 4-9) for loose hardware (nuts, bolts, and washers ). Tighten all hardware as required. b. Detection ofLeaks.

NOTE Do not use an excessive amount of leak detection solution . Leakage into the electronic equipment could be detrimental to its operation.

of flexible waveguide assemblies W13 ( 13 , fig. 4-7) and W2 (5 , fig. 4-8). Observe for bubbling of the solution (air leakage ).

NOTE The key numbers shown below in parentheses refer to figure 4-9. (4) Apply the solution to the following areas on the waveguide pressure gage connections. Observe for bubbling of the solution (air leakage).

(a) Hose assembly (2) (b) Elbow (3)

NOTE In areas where application with a paint brush would be difficult, it may be necessary to use the finger-tips to apply the leak detection solution.

(c) Tee (9) (d) Adapter (8 ) (e) Shielding gasket (6)

NOTE The key numbers shown below in parentheses refer to figure 4-8, unless otherwise specified. ( 1) Use leak detection solution from kit 5420642. Starting at the magnetron and working through the opening left by the local-oscillator control amplifier, apply the solution evenly to all flanges and joints of waveguide assembly W1 ( 15) , coupler DC1 ( 6), and the windows of E1 through E4 (7). Observe for bubbling of the solution (air leakage ). (2) Continue to apply the solution to the flange and joints of the following components : (a) Switch A5 (4) (b) Switch K1 (3)

( f) Cover (5)

NOTE The key numbers shown below in parentheses refer to figure 4-10. c. Test the connection to the pressurization unit and reservoir in the following manner. (1) Loosen the 18 captive screws (3) and remove the cover and retainer assembly (4) from the base of the antenna pedestal . (2) Inspect the pressurization unit and reservoir hardware ( nuts , bolts, and washers ) . Check that all hose connections and fittings are secure. Tighten all hardware as required. (3) Apply solution to the nut and elbow ( 10

(c) Waveguide assembly W7 (27)

and 7) and along the entire length of the tube assembly (6) . Observe for bubbling of solution (air

(d) Dummy load 1 ( 2 )

leakage).

(e) Circulator E6 (20) ( f ) Switch A1 (22)

NOTE The key numbers shown below in parentheses refer to figure 4-7, unless otherwise specified.

(g) Waveguide assembly W3 (21) (h) Adapter W11 ( 12, fig. 4-7) (i) Waveguide assembly W12 ( 10, fig. 4-7)

d. Test the antenna waveguide seal in the following manner. 4-11

TM 9-1430-529-12-1

C9

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21

MI 65322

23 1- Packing 2-Dummy Load 1 3-Switch K1 4-Switch A5 5-Waveguide assembly W2 6-Coupler DC1 7-Window E1- E4 8-Waveguide assembly W1 9-Holder 10-Waveguide assembly W5

11-Calorimeter E7 12-Adapter 13-Seal 14-Gasket 15-Waveguide assembly W1 16-Plate 17-Mixer stage A2 18-Waveguide assembly W6 19-Electron tube V1 20-Circulator E6

21-Waveguide assembly W3 22-Switch Al 23-Waveguide assembly W8 24-Generator A3 25-Support 26-Bracket 27-Waveguide assembly W7 28-Coupler A4 29-Waveguide assembly W4

Figure 4-8. Receiver-transmitter rf components leak check.

4-12

TM 9-1430-529-12-1

(4 ) Fill a transparent container such as a plastic or glass jar with water and immerse the waveguide seal. Observe for bubbles in the water.

NOTE To seal air leaks detected in the porous material of the waveguide seal not attributed to a debonded or physically damaged seal, perform steps (5) through (8) below. 7

(5 ) Depressurize the waveguide components by loosening the nut of the hose assembly (2, fig. 4-9) at the pressure gage. Insure that all pressure has been relieved.

3

MI 65323

(6) Using a paint brush, apply one coat of silicone varnish B155584 to the waveguide seal ( 16, fig. 4-7) . Air dry for nine hours.

1-Gage 2-Hose assembly 3-Elbow 4-Rf assembly A1 5-Cover 6-Shielding gasket 7-Packing 8- Adapter 9 Tee

NOTE The drying period can be accelerated by applying heat at 212°F ( 100°C) for four hours. For accelerated heat drying , it is recommended that a heat lamp be suspended between the tripod in front of the seal with a reflector aimed toward the waveguide seal.

Figure 4-9. Waveguide pressure gage connections leak check.

NOTE Do not energize the radar during the drying period as it will cause bubbling of the sealant.

( 1) Inspect the waveguide seal ( 16) to insure that any detected air leaks are not caused by a

(7) Tighten the nut of the hose assembly (2,

debonded or a physically damaged seal.

(2) Check the waveguide flange ( 18) for loose hardware (nuts, bolts, and washers). Tighten as

fig. 4-9) at the pressure gage, energize the radar to standby (table 3-10) , and retest with leak detection solution.

required.

(8) Retest the waveguide seal (par. d (3) and (4)).

(3) Angle the antenna to a position that will allow the waveguide seal ( 16) to be immersed in water.

e. Install the local- oscillator control amplifier. Close and secure the receiver-transmitter inclosure door.

4-13

C13 TM 9-1430-529-12-1

*(P) 10043943 (SEE NOTE )

5

1

NOTE : REFER TO APPENDIX E FOR SERIAL NUMBER EFFECTIVITY.

(Q) 11566317 (SEE NOTE )

2

15

3

13

16

12

10 11 MI 65324A

1-Washer 2-Cover and nut assembly 3-Screw 4-Cover and retainer assembly 5-Pressurization unit A1

6-Tube assembly 7-Safety relief valve

8-Tee fitting 9-Packing 10-Nut

Figure 4-10. Pressurization unit connection leak check. 4-14

11-Tank 12-Support 13-Clamp 14-Support 15-Plate 16-Ring and pin assembly

TM 9-1430-529-12-1

C11

CHAPTER 5 CORRECTIVE MAINTENANCE

5-1 . General WARNING

This chapter provides maintenance instructions for authorized organizational maintenance personnel of the IROR. Maintenance consists of Before performing maintenance on the magnetron pulse generator, make certain the MAIN POWER switch is set to OFF

replacement of parts and detailed adjustment of parts authorized. Using personnel will refer the material to direct-support maintenance personnel for all other replacements and adjustments.

and ground all points of high potential .

b.

CAUTION

Removal.

(1 ) Disconnect the high-voltage pulse cable from connector J2 on the bottom of the magnetron pulse generator .

Use care when removing or installing waveguide connections to insure the waveguide flanges are not damaged.

CAUTION Insure that the screws do not protrude beyond the flange edge to prevent damage to waveguide .

5-2. Replacement of the Magnetron Pulse Generator

(2 ) Disconnect (W1 ) flexible waveguide ( 3) from the output port of the magnetron . (3) Remove the access door ( 3.1 ) on the side of the receiver-transmitter cabinet.

川 NOTE

(4) Disconnect cables P1 , P4, and P6 from the The key numbers shown below in parentheses refer to figure 5-1 , unless otherwise indicated .

magnetron pulse generator (5 ) . (5 ) Remove the cover ( 2 ) from the bottom of the receiver-transmitter cabinet.

a.

Preparation. (1)

Energize the radar to standby (table 3-9) .

CAUTION NOTE Nonmagnetic tools in Organizational Guided Missile Maintenance Tool Kit NSN 5180-00231-7690 will be used throughout this procedure . The following tools required are listed below: Wrench, open end Wrench, open end Screwdriver, Phillips Screwdriver, flat tip Keyset, socket headscrew , spline drive

NSN NSN NSN NSN

5120-00-919-2927 5120-00-060-8369 5120-00-596-0865 5120-00-287-2502

Insure that the flexible waveguide (W1 ) does not get caught on the magnetron output flange .

CAUTION Maintain minimum clearance of two (2) inches between magnetic materials (tools , plates, other magnets) and magnetron tube magnets .

NSN 5120-00-585-6257

(6 ) Release the four mounting screws that (2 ) Set the FREQUENCY switch ( 14 , fig. 2-1 ) for a zero indication on the FREQUENCY meter

secure the magnetron pulse generator ( 5 ) and carefully remove it from the receiver transmitter cabinet.

(12 , fig. 2-1 ). ( 3) Deenergize the radar (table 3-11 ) .

(7) Set the magnetron pulse generator on its side with the output flange facing up. 5-1

TM 9-1430-529-12-1

C11

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1 8

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100

16 15-

13 12 11-

MI 65325A 1-Captive thumbscrew 2-Cover 3-Flexible waveguide W1 3.1-Access door 4-Captive screw 5-Magnetron pulse generator

6-Receiver-transmitter cabinet 7-No. 6 x 3/8 socket-head capscrew 8-No. 6 lockwasher 9-Waveguide assembly 10-Locknut 11 - No. 8 x 5/8 panhead screw

12-No. 8 lockwasher 13-No. 8 flat washer 14-No. 6 hexagon nut 15-Retaining band 16-Calorimeter 17-Gasket

Figure 5-1. Replacement of the magnetron pulse generator and calorimeter.

5-2

C

TM 9-1430-529-12-1

C11

a

31 FPP

3

band

2.

7

13 12

10.

MS 193753

1-Flat washer 2- Lockwasher 3-Hexagon bolt 4-Thermostatic switch 5-Bracket 6-Dust boot 7-Electron tube

8-Pipe 9-Gasket 10-Magnetron power supply 11-Tuning drive 12-Coupling 13-Tube contact clip

Figure 5-1.1. Replacement of the magnetron tube.

5-2.1

TM 9-1430-529-12-1

C11

(8 ) Remove the tube contact clip (13 , fig. 5-1.1 ) from the magnetron pulse generator .

CAUTION ofthe

(9) Place a protective covering such as tape over the connector P7 located under the magnetron

Do not allow the dial to slip . It is spring loaded and damage can result if it slams into its stop .

power supply . ( 10 ) Set the magnetron pulse generator upright in a secure position .

C.

C11

(4) Carefully lift the dust boot and adjust the dial and vernier to the value of code letter F3 on the new magnetron and hold in place.

ecto

C

Disassembly of the Magnetron . CAUTION

( 1 ) Remove the air conditioning pipe ( 8 , fig . 5-1.1 ) and its gasket ( 9 , fig. 5-1.1 ) from the magnetron power supply ( 10 , fig . 5-1.1 ) and retain the hardware .

DOCUL

A slight adjustment of the coupling ( 12, fig. 5-1.1 ) may be required to mate the magnetron drive to the tuning drive coupling , but do not rotate the coupling more than 90 degrees either way.

(2 ) Carefully lift the dust boot (6 , fig. 5-1.1 ) and read the magnetron dial and vernier. a.

The reading should correspond to the

value of code letter F3 stamped on the magnetron .

b.

(3

ad 3-

53 R (5) Connect the magnetron to the tuning drive coupling .

If the reading does not correspond , set

the dial and vernier to the F3 value by rotating the flex coupling by hand.

(6 ) Bolt the bracket holding the thermostatic switch and the magnetron electron tube to the magnetron pulse generator, using flat and split lockwashers .

B

(7) Install the three remaining bolts that attach the magnetron electron tube to the pulse generator .

P

switch (4 , fig. 5-1.1 ) and retain the bolt, washers , bracket, and switch. (4 ) Remove the remaining bolts holding the magnetron electron tube ( 7 , fig. 5-1.1 ) and retain bolts and washers.

(8) Connect the tube contact clip (13, fig. 5-1.1 ) to the pulse generator .

(3) Remove the bolt ( 3 , fig. 5-1.1 ) holding the bracket (5 , fig. 5-1.1 ) that holds the thermostatic

(5 ) Carefully disengage the magnetron electron tube from the magnetron tuning drive ( 11 , fig . 5-1.1 ) by holding the spring loaded vernier dial and sliding it from the magnetron tuning drive until the coupling is disengaged . Release the dial slowly until it hits the stop.

(9) Install air conditioning pipe and its gasket to the magnetron pulse generator ( 5 ) . e.

Installation .

(1 ) Remove the protective cover from the output port and from connector P7 located under the magnetron power supply .

(6) Remove the dust boot and retain . (7) Remove the magnetron electron tube and, using the correct SMR code, complete the disposition action.

Assembly of the Magnetron .

d.

(1 ) Remove the new magnetron electron tube from its container.

(2 ) Secure the dust boot to the new magnetron electron tube.

CAUTION Care should be taken not to damage the flexible waveguide W1 ( 3 ) when inserting the magnetron pulse generator into the receiver-transmitter. (2 ) Carefully replace the magnetron pulse generator (5) in the receiver-transmitter cabinet and secure the four mounting screws.

NOTE

CAUTION

Do not disturb the tuning drive coupling .

(3) Carefully insert the magnetron electron tube on the magnetron pulse generator ( 5 ) .

5-2.2

Before tightening the screws be sure that the preformed packing is seated properly. (3) Reconnect the flexible waveguide W1 (3) to the output port of the magnetron . (4)

Reconnect cables P1 , P4, and P6 .

( 5)

Replace the cover (2) .

TM 9-1430-529-12-1

C11

(6) Replace the access door ( 3.1 ) on the side of the receiver-transmitter cabinet. (7) Reconnect high-voltage pulse cable to connector J2 on the bottom of the magnetron pulse

NOTE The key numbers shown below in parentheses refer to figure 5-1.

a. Removal.

generator.

f.

Electrical Check.

( 1) Disconnect the waveguide assembly (9) from the calorimeter ( 16).

(1 ) Energize the radar to standby (table 3-9) . (2) Remove the retaining band ( 15) .

(2) Check the flexible waveguide W1 at the magnetron for leakage (par. 4-11 ) . If leakage occurs , replace the preformed packing. (3) Perform frequency check in table 5-1 . (4) Perform the weekly checks in tables 3-23 and 3-24.

(3) Remove the calorimeter ( 16) and the gasket ( 17). b. Installation. ( 1)

Install the

calorimeter,

gasket,

and

waveguide assembly. (2) Install the retaining band.

5-3. Replacement of the Calorimeter

c. RfPower Measuring Circuit Adjustment.

(1) Purpose. This check insures that the calWARNING

orimeter output is correctly attenuated after its replacement.

Before performing maintenance on the calorimeter, make certain the MAIN POWER switch is set to OFF and ground

(2) Procedure. Note the dc value printed on vertical input coupler No. 1 and the three dc

all points of high potential.

orimeter. If the coupler db value corresponds to

resistance values stamped on the end of the cal-

5-2.3

C10

trib

in 3 TESIS

TM 9-1430-529-12-1

C10

one of the de values on the calorimeter ( 23.7, 24.0, or 24.3 db), adjust resistor R6 on the power distribution panel to the corresponding resistance

5-4.

Replacement of the Modulator - Power Supply Interlock Switch

value stamped on the calorimeter. If not, it will be necessary to interpolate the calorimeter values to determine the resistance for R6. (See the example

WARNING

in (3) below if interpolation is necessary.) Once the resistance value for R6 has been determined ,

Before performing maintenance on the modulator power supply interlock

insure that test cable W25 is not connected to J5

switch, make certain the MAIN POWER switch is set to OFF and ground all

on the radar set group from previous tests. Open the power distribution panel and locate variable resistor R6 on the rear of the panel, just below the line-voltage meter. Connect the DMM, set to the appropriate resistance scale , to the two end terminals of R6. If necessary , adjust R6 until the DMM indicates the value calculated above . Disconnect

points of high potential . a. Removal. Remove the interlock switch.

b. Disassembly and Assembly. Disassemble and assemble the interlock switch (fig. 5-2) . c. Installation. Install the interlock switch.

the DMM and close the panel . d. Test After Installation. Perform a continuity check using the DMM. (3) Example of interpolation . For purposes of illustration, assume the following values: vertical input coupler No. 1 attenuation : 24.2 db; DB resis-

5-5. Replacement of the Range Indicator Cathode-Ray Tube ( CRT )

tance values stamped on the calorimeter:

WARNING 23.7 db = 1429 ohms

24.0 db = 1273 ohms 24.3 db = 1129 ohms

Before performing maintenance on the range indicator CRT, make certain the MAIN POWER switch is set to OFF and ground all points of high potential .

Calculate the resistance value for R6 as follows: WARNING (a) Determine the two calorimeter db values which are closest to the coupler value (24.0 and 24.3 db). (b) Calculate the difference in resistance for the above two db values ( 1273 - 1129 = 144 ohms).

(c) Divide this difference by 3 to calculate the resistance equal to a 0.1-db change ( 144 - 3 = 48 ohms).

Use extreme caution when working on or near the range indicator. Serious injury may result from accidental implosion of the CRT.

NOTE The key numbers shown below in parentheses refer to figure 5-3.

a. Removal. (d) Note the difference between the value of the directional coupler ( 24.2 db) and the smaller db value of (a) above ( 24.0 db) ( 24.2 24.0 0.2 db).

(1) Open the range- indicator ( 16) drawer and loosen the panhead screw (1) on the electron- tube shield (5), and disconnect the connector (2).

(e) Multiply the resistance of step (c) by the absolute numerical difference of step (d), ignoring

(2) Loosen the two externally-relieved body screws (3) and lift up the mounting bracket (4).

the decimal point (48 x 2 = 96 ohms).

(3) Remove the electron-tube shield and the ( f) Subtract the value obtained in step (e) from the larger of the resistance values used in step (b) ( 1273-96 = 1177 ohms).

rubber seal (7) from the CRT (6 ) .

(4) The resistance calculated in (f) above is the value to be used for R6.

(5) Remove the six panhead screws and the flat washers ( 11 and 12).

(4) Remove the two panhead screws, flat washers, and the plate (8 , 9, and 10).

5-3

TM 9-1430-529-12-1

-

C4

B4

14

45

fr 11

12 13

26

EL

15

28

16

21

17 20 34

48

38

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33 19

43

18

42

32

30-1

23 24

22

40

-25 MI 65326 1- Setscrew 2-Setscrew 3-Setscrew 4-Pin 5-Shaft 6-Flat washer 7-Spring 8-Collar 9-Collar 10-Collar 11-No. 4 x 1/2 panhead screw 12-No. 4 hexagon nut 13- No. 4 flat washer 14-Electrical contact 15-No. 6 x 3/4 socket-head capscrew 16-No. 6 lockwasher

17-No. 6 flat washer 18 -Shaft 19-Plate 20-Bearing 21-Yoke 22-No. 4 x 1/2 panhead screw 23-No. 4 hexagon nut 24-No. 4 flat washer 25-Electrical contact 26-No. 4 x 5/16 panhead screw 27-No. 4 flat washer 28-Electrical contact 29-Block 30-No. 4 x 5/16 panhead screw 31-No. 4 flat washer 32-Electrical contact

33-Block 34-No. 6 x 1 1/2 panhead screw 35-No. 6 hexagon nut 36-No. 6 washer 37-No. 6 flat washer 38 -Switch 39-Plate 40-No. 4 x 5/16 panhead screw 41-No. 4 flat washer 42-Electrical contact 43 -Block 44-Pin 45 -Roller 46-Pin 47-Stop 48-Interlock switch plate

Figure 5-2. Replacement of the modulator-power supply interlock switch.

5-4

TM 9-1430-529-12-1

C11 (6) Remove the tube-visor adapter, the electron-tube window, and the hood ( 13, 14, and 15) from the range indicator.

b. Assembly.

b. Installation. (1) Install the vent interlock switch (8 ) on bracket assembly ( 4 ) but do not tighten screws (1 ). ( 2 ) Install the vent interlock switch and bracket assembly (fig. 5-4). (3) Connect the electrical leads .

(1) Position the window and the hood on the tube-visor adapter , and secure the adapter and hood to the range indicator .

CAUTION

Prevent bending of the switch mounting bracket by properly positioning the vent interlock switch .

(2) Secure the plate to the adapter. (3) Place the rubber seal on the cathode- ray tube.

(4) Press and hold the pushrod ( 9 ) in to simulate vent cover closing . WARNING (5) Adjust the vent interlock switch so that the switch is activated but not bottoming against

Install the tube with the type desig-

the pushrod cap (3).

nator (etched on the side of the tube)

(6 ) Secure the vent interlock switch to the bracket assembly.

facing upward.

(7) Release the pushrod. (4) Slide the tube into the tube shield. (8) Press the pushrod in several times to insure that the vent interlock switch is activated (5) Position the tube shield, tube, and rubber seal behind the adapter. (6) Close the mounting bracket and secure it with the two screws. (7) Connect the connector to the tube.

c. Test After Installation . Perform the range indicator check.

5-6.

Replacement of the Radar Set Group Intake-Exhaust Vent Interlock Switches

without bottoming against the body of the switch. Perform steps (4) through ( 8 ) , if necessary. (9) Close the control-indicator panel or power distribution panel . 5-7.

Magnetron Frequency Check

The magnetron frequency check in table 5-1 is provided to assist the maintenance mechanic in determining the correct operating frequency of the transmitter magnetron . This check is to be performed by the maintenance mechanic , and only when referenced to this check when performing the check procedures contained in chapter 3.

WARNING

5-8. AFC Alinement The AFC alinement in table 5-2 is provided to assist the maintenance mechanic in alinement of

Before performing maintenance on the radar set group intake and exhaust vent interlock switches, make certain the MAIN POWER switch is set to OFF . NOTE Numbers in parentheses refer to figure 5-4 unless otherwise indicated.

a

Removal.

the AFC circuits in the receiver. These procedures are to be performed by the maintenance mechanic , and only when referenced to this procedure when performing the chapter 3 .

check procedures

contained

in

5-8.1 . Radar Control Transformer Limit Adjust The transformer limit adjust procedures in Table 5-3 are provided to assist the maintenance

(1 ) Deenergize the radar. (2) Open the control-indicator panel or power distribution panel to gain access to the vent interlock switches (8 ). (3) Tag and disconnect the switch electrical leads. (4) Remove the vent interlock switch and bracket assembly (4).

mechanic in adjusting the cam set plate for upper and lower limits on the magnetron current meter.

5-9. Replacement of Additional Units a. The repair or replacement of the following listed units is obvious. Insure that the radar is deenergized before performing maintenance .

5-5

TM 9-1430-529-12-1 C11 b. For the appropriate test after installation , refer to the table given in parentheses after each unit. For those units with no table reference , refer

to the fault isolation procedures in TM 9-1430529-12-2 . AFC amplifier - 9170023 (table 3-18)

12 2

11

16

1- No. 8 x 5/8 panhead screw 2-Connector 3-No. 8 x 3/4 externally-relieved body screw 4-Mounting bracket 5-Electron-tube shield 6-Cathode-ray tube 7-Rubber seal 8-No. 6 x 5/16 panhead screw 9-No. 6 flat washer 10-Plate 11- No. 6 x 1/2 panhead screw 12 -No. 6 flat washer 13-Tube- visor adapter 14- Electron-tube window 15-Hood 16-Range indicator

10

13

15

MI 65327 Figure 5-8. Replacement of the range indicator CRT.

5-6

CA

C4

TM 9-1430-529-12-1

L

0

00000

000

20

1

7

5

MS 154691

1-Machine screw 2-Flat washer 3-Pushrod cap 4-Bracket assembly 5-Hexagon nut

6-Flat washer 7-Machine screw 8-Switch 9-Pushrod

Figure 5-4. Replacement of the radar set group vent interlock switches.

5-7

TM 9-1430-529-12-1

C13

Amplifier-computer test set - 9179057 (tables 3-14, 3-15)

Gas tube starter -- 9178184 (table 3-18) IF preamplifier - 9169415 (table 3-18)

Azimuth control amplifier --

9180404 (tables

Local oscillator control amplifier - 10107595

3-14, 3-15 ) (table 3-18 )

Azimuth parallax computer - 9190251 (table 3-15)

Motor-generator assembly 3-14 )

9182311 (table

Back bias amplifier - 9169601 (table 3-18) Noise figure amplifier - 9169579 (table 3-18) Communications

station

-

10288848 10291990 * (L ) ' , * ( M ) ' , 10288711 * (M ) ¹ , or 10677377 * ( D ) ¹ , * (M) ¹

* (N)¹ , * (E ) ¹ ,

Computer control (A) - 9170194 (table 3-15) Computer control (B) - 9170194 (table 3-15) Control-detector -

Pressurization unit - 11566317* (Q ) ¹ , 10043943* (P) ¹ (table 3-13) Radar set control - 10177733 (table 3-14) Reference voltage regulator - 9079440 (table 3-13)

9170512 (table 3-18 ) Sequential timer - 10177155 (tables 3-12, 3-13)

Elevation control amplifier - 9180404 (tables 3-14, 3-15 )

Sweep generator - 9169483 (table 3-17)

Elevation parallax computer

Trigger pulse generator - 10177751 (table 3-16) 9190251 (table

3-15) Ferrite attenuator control -

Voltage divider matrices 9086380 , 9179776, 9179777, 10110297 (table 3-13) 9170546 (table

3-18)

Voltage regulator - 9179969 (table 3-13)

Table 5-1 . Magnetron Frequency Check Operation

Step

Normal indication

Corrective procedure

Check Frequency . 80

а.

Note the position of the rf test adapter (6 , fig . 3-4 ) .

b.

Insure that the RADIATE -STANDBY switch is set to STANDBY .

CAUTION Exercise care to prevent foreign matter from entering the waveguide .

öə

C.

d.

Remove the four screws holding the rf test adapter to the waveguide ( 1 , fig. 3-4 ) . Open the left fender well and remove the wavemeter, calibration chart , and rf test cable W26 from the carrying case and insure that the serial numbers of the wavemeter and calibration chart are identical .

e.

Insure that the wavemeter is installed with the microwave barrel pointing downward, and the vernier index facing the operator , and secure the wavemeter (5 , fig. 3-4 ) to the waveguide with two screws inserted diagonally opposite each other, using the screws obtained when removing the rf test adapter.

f.

Attach the rf test adapter to the wavemeter by fastening the two remaining screws diagonally opposite each other and insure that the aperture of the rf test adapter is installed in the vertical position .

g.

Remove the cover from J1 ( 3 , fig. 3-4 ) .

1 Refer to appendix E for serial number effectivity. 5-8

TM 9-1430-529-12-1

C13 Table 5-1 . Magnetron Frequency Check -Continued Operation

Step

Normal indication

Corrective procedure h.

Connect rf test cable W26 ( 4 , fig . 3-4) between the rf test adapter and J1 .

i.

Unlock the micrometer dial , and set the micrometer to 0.

j.

Set and hold the FREQUENCY switch to INCREASE until the FREQUENCY meter indicates +5 .

k.

Set the RADIATE-STANDBY switch to RADIATE .

1.

Adjust the INCREASE-DECREASE control clockwise until the MAGNETRON CURRENT meter indicates 16.5 ma .

m.

Slowly rotate the micrometer dial counterclockwise until the needle dips toward the left of the meter scale on the WAVEMETER INDICATOR ( 2 , fig. 3-4) .

n.

Record the micrometer setting.

0.

Set and hold the FREQUENCY switch to DECREASE until the FREQUENCY meter indicates 0.

p.

Slowly rotate the wavemeter micrometer dial counterclockwise until the needle dips toward the left of the meter scale on the WAVEMETER INDICATOR .

..

Record the micrometer setting.

r.

Set and hold the FREQUENCY switch to DECREASE until the FREQUENCY meter indicates -5 .

S.

Slowly rotate the wavemeter micrometer dial counterclockwise until the needle dips toward the left of the meter scale on the WAVEMETER INDICATOR .

t.

Record the micrometer setting.

น.

Check the recorded micrometer settings at +5.0 , and -5 with the settings on the calibration chart at F3 , F2, and F1 .

The settings agree with the calibration chart within -0.004 to +0.004 inch. Repeat i through u above once. NOTE A FREQUENCY meter indication of +5 corresponds to F3 on the calibration chart, O corresponds to F2 , and −5 corresponds to F1 .

V.

Adjust the INCREASE-DECREASE control ( 15 , fig . 2-1 ) fully counterclockwise .

w.

Set the RADIATE-STANDBY switch to STANDBY.

x.

Remove rf test cable W26 , and replace the cover on J1.

y.

Remove the wavemeter from the waveguide.

2.

Remove the test adapter from the wavemeter.

αα.

Using the four screws , secure the rf test adapter to the waveguide in the position noted in a above and insure that the aperture of the rf test adapter is installed in the vertical position.

ab.

Replace the wavemeter, calibration chart , and test cable W26 in the carrying case , and then close and secure the case .

5-9

C8

TM 9-1430-529-12-1 Table 5-2. AFC Alinement Operation

Step

Normal indication Corrective procedure

a.

Set and hold the FREQUENCY switch to DECREASE until the FREQUENCY meter indicates 0.

b.

Position the antenna over the motor-generator cabinet at 200 mils elevation .

C.

Adjust the INCREASE-DECREASE control fully counterclockwise , and then set the RADIATE-STANDBY switch to STANDBY .

d.

Set the antenna SAFETY SWITCH to SAFE.

e.

Open the receiver-transmitter door.

f.

Insure that the ATTENUATOR CONTROL switch ( 1 , fig . 3-3) is set to AUTO .

g.

Remove the ACCESS DOOR ( 12 , fig. 3-2 ) located on the rear of the receiver-transmitter.

h.

Remove the four screws holding the local oscillator tuning drive cover plate ( 7 , fig. 3-3) located in the receiver-transmitter to the left of the WAVEMETER INDICATOR .

i.

Set the AC LINE switch ( 2 , fig . 3-5) to OFF , and manually position the klystron local oscillator to midband.

NOTE For a midband setting of the klystron local oscillator , turn the repeller control drive gear ( 1 , fig. 3-6 ) upward until a sharp click is heard , and then an additional 1/2 turn.

j.

Set the digital multimeter 10177187 to measure ± 2.5 vdc . CAUTION

In k through o below, do not release the INPUT pushbutton until the test leads are removed from J8 and J11 .

k.

Depress and hold the INPUT pushbutton ( 10 , fig. 3-3 ) . While holding the pushbutton , connect the black test lead to J13 ( 12 , fig. 3-5 ) and the red test lead to J12 ( 11 , fig. 3-5 ) . The multimeter indicates 0 vdc. Adjust the BALANCE ADJ ( 8 , fig . 3-5 ).

1. m.

Remove the test leads from J12 and J13. Connect the black test lead to J11 ( 9 , fig . 3-5) and the red test lead to J8 ( 11 , fig . 3-5) . The multimeter indicates 0 vdc. Adjust the DIFF ZERO ADJUST ( 13 , fig. 3-5).

n.

Remove the test leads from J8 and J11 .

0.

Release the INPUT pushbutton .

p.

Turn the repeller control drive gear upward to the click position , where the spring-loaded worm shaft cam ( 4 , fig. 3-15 ) slips off the repeller control drive cam (9, fig. 3-6 ) and resets at the high frequency stop ( 5 , fig . 3-6 ) . Continue rotating the gear slowly until the repeller control drive cam just reengages the spring-loaded worm shaft cam.

..

5-10

Set the multimeter to measure 500 vdc .

TM 9-1430-529-12-1

C13 Table 5-2. AFC Alinement-Continued Operation

Step

Normal indication

Corrective procedure

r.

Insert the black test lead into J4 and the red test lead into J8 on the receiver -transmitter subassembly ( 15 and 4 , fig. 3-3) .

NOTE It may be necessary to rotate the repeller control drive gear slightly further upward to obtain a multimeter indication.

S.

Adjust the HIGH REPEL ADJ ( 6 , fig. 3-5) for a maximum negative indication on the multimeter.

t.

Rotate the repeller control drive gear upward to the low end of the frequency band .

NOTE This position is just before the point where the spring-loaded worm shaft cam slips off the repeller control drive cam.

I น.

Adjust the LOW REPEL ADJ ( 5 , fig. 3-5) for a maximum negative indication on the multimeter. NOTE Due to the interaction between the HIGH REPEL ADJ and LOW REPEL ADJ, steps p through u above must be repeated until the voltage indications are stabilized . If difficulty is encountered in stabilizing voltage indications, verify that the voltages to ground at pins 1 and 3 of R1 on the local - oscillator tuning drive correspond to the voltages stamped on the tuning drive cover plate . Monitor the higher voltage on the uppermost terminal ( pin 1 ) . The multimeter will give an approximate reading, and the HIGH and LOW REPEL variable resistor should be adjusted accordingly.

$

V.

Remove the test leads from J8 and J4 .

ພ.

Set the PICK UP ADJUST ( 15 , fig . 3-5 ) fully counterclockwise .

મં ૐ કં x.

Set the HOLD ADJ and GAIN ADJ (4 and 7 , fig . 3-5) to midrange.

y.

Set the AC LINE switch to ON.

2.

Connect the test cable W25 between RECEIVER TEST P16 /W25P11 and J5.

аа.

Set the RADIATE-STANDBY switch to RADIATE and adjust the INCREASE-DECREASE control clockwise until the MAGNETRON CURRENT meter indicates 16.5 ma.

ab.

Set the TEST switch to the following positions: AFC-1 -CR1 , AFC-2-CR2, REC- 1 -CR3 , REC-2 -CR4 . The TEST meter needle fluctuates during search, makes a brief dip between search cycles, but does not settle to the SET line. NOTE If at any point during search the meter needles drops to SET and remains there, repeat steps i through ab above.

5-11

TM 9-1430-529-12-1

C8 Table 5-2. AFC Alinement-Continued

Operation Step

Normal indication

Corrective procedure

ac.

Adjust the PICKUP ADJUST clockwise in small increments until The AFC ON lamp flickers once per revolution of the repeller control shaft, or the AFC ON lamp remains illuminated and search stops . If the AFC ON lamp flickers once per shaft revolution , adjust the HOLD ADJ counterclockwise in small increments.

ad.

Set the AC LINE switch to OFF.

ae.

Rotate the repeller control drive gear 1/4 turn upward .

The AFC ON lamp extinguishes. Adjust the HOLD ADJ slightly clockwise.

af.

Set the AC LINE switch to ON . Search resumes for less than 1 revolution, the AFC ON lamp illuminates and search stops .

If the klystron does not search : Adjust the PICK UP ADJUST slightly counterclockwise . If the AFC on lamp flickers during search : Adjust the PICK UP ADJUST slightly clockwise . If the repeller control drive gear oscillates or drifts:

Adjust the GAIN ADJ slowly counterclockwise .

ag.

Replace the four screws in the local oscillator tuning drive cover plate .

ah.

Close the receiver-transmitter door .

ai.

Replace the ACCESS COVER .

aj.

Disconnect rf test cable W25 , and replace the covers on RECEIVER TEST P16 /W25P11 and J5 .

ak. al. am .

Set the antenna SAFETY SWITCH to OPERATE . Set the azimuth and elevation handwheels for a known video return or ground clutter. Set and hold the ANTENNA-LOAD switch to ANTENNA . Video return or ground clutter appears on the range indicator screen .

an.

Release the ANTENNA- LOAD switch .

ao.

Set the AZ-AMPLIDYNE and EL-AMPLIDYNE circuit breakers to OFF . Wait one minute before proceeding .

ap.

Set the antenna SAFETY SWITCH to SAFE.

aq.

Connect test cable W25 to RECEIVER TEST P16 /W25P11 and J5.

5-12

TM 9-1430-529-12-1

C14 Table 5-2.

AFC Alinement-Continued

Operation Step

Normal indication

Corrective procedure

ar.

Set and hold the FREQUENCY switch to INCREASE until the FREQUENCY meter indicates +5 .

trol

NOTE

101 Insure that the TEST switch is set to AFC-2-CR2.

直 309

as.

Set and hold the ANTENNA-LOAD switch to ANTENNA. Video return or ground clutter appears on the range indicator screen. The TEST meter indicates between 9.5 and 13 db.

at.

151

While holding the ANTENNA-LOAD switch to ANTENNA, momentarily set the FREQUENCY switch to DECREASE for each of the following indications on the FREQUENCY meter: 4, 3 , 2 , 1 , 0 , -1 , -2, -3, -4 , and -5. Video return or ground clutter is present on the range indicator screen at each of the frequency indications. The video return or ground clutter may disappear as the transmitter is tuned , but will reappear within 6 seconds each time tuning stops. The TEST meter indicates between 9.5 and 13 db for each of the frequency indications.

Repeat steps a through as above . au.

While holding the ANTENNA-LOAD switch to ANTENNA, momentarily set the FREQUENCY switch to INCREASE for each of the following indications on the FREQUENCY meter: -4 , -3 , -2 , -1 , 0 , 1 , 2 , 3, 4, and 6 .

The indications are the same as in step at. αυ.

હું કે હું ૐ

aw.

Release the ANTENNA-LOAD switch. Set and hold the FREQUENCY switch to DECREASE until the FREQUENCY meter indicates 0. Note the position of C18 ( 12 , fig. 3-3 ) on the AFC IF amplifier. Set and hold the ANTENNA-LOAD switch to ANTENNA. Using a non-metallic tuning wand , carefully adjust C18 for maximum amplitude of the unlimited portion of the video return or clutter.

NOTE If video disappears and the AFC begins to search, set C18 to the previously noted position and repeat the adjustments more slowly.

ba .

Release the ANTENNA-LOAD switch .

ཐྱ ལྕྨ ཎྱ

bb.

Remove the rf test cable W25 .

bc.

Replace the covers on RECEIVER TEST P16 /W25P11 and J5 .

bd.

Set the antenna SAFETY SWITCH to OPERATE .

be.

Set the AZ-AMPLIDYNE and EL-AMPLIDYNE circuit breakers to ON .

bf.

Set the TEST switch to OFF.

5-13

TM 9-1430-529-12—1

C11 Table 5-3. Transformer Limit Adjustment Procedures

Illustration

Operation

Step

Normal indication Corrective procedure

Figure

Key

WARNING

Hazardous voltages exist in the radar set control . Use extreme caution while loosening transformer T1.

or

tightening the setscrew on

1

a.

Pull the radar set control out of the control-indicator panel for access to transformer T1 .

1-6

21

b.

Rotate the INCREASE-DECREASE control fully counterclockwise .

2-1

15

C.

Set the RADIATE -STANDBY switch to RADIATE .

2-1

23

10

RADIATE lamp d.

illuminates.

Rotate the INCREASE-DECREASE control clockwise until MAGNETRON CURRENT meter

17 ma .

21

e.

Carefully loosen the setscrew on the stop on transformer T1 , turn the stop fully counterclockwise against INCREASE-DECREASE control until

the

pin

MAGNETRON CURRENT meter .........

while

holding the

17 ma. 19

f.

Carefully tighten and secure the setscrew.

MAGNETRON CURRENT meter ..........

17 ma.

If normal: perform step g below .

If abnormal : repeat steps b through f.

g.

Rotate the INCREASE-DECREASE control until MAGNETRON CURRENT meter

h.

5-14

16.5 ma .

Push the radar set control back into the control-indicator panel.

TM 9-1430-529-12-1

C7

CHAPTER 6 PREPARATION FOR TRAVEL

Section I. GENERAL

6-1. Scope Preparation for travel of the IROR is presented in this chapter . Paragraphs 6-4 and 6-5 contain general information on the transportation of the equipment by truck (prime mover) , cargo aircraft , and helicopter . Paragraphs 6-8 through 6-10 contain the preparation for travel procedures .

improved range-only radar ( IROR ) from a completely emplaced radar into a mobile unit . Before the IROR can be disassembled and prepared for travel , it must described in chapter 3 .

be

deenergized

as

6-3. Trailers There

are

four

different

trailers

used

to

6-2. Explanation of Procedures The preparation for travel procedures describe the

most

efficient

method

of converting the

Section II.

support the major items of the improved HAWK . The M514 trailer is used to support the IROR.

METHODS OF TRANSPORTATION

6-4. Transportation by Truck

Usually , the IROR is towed by the truck (prime mover ) to the battery site .

M36 7

6-5. Transportation by Air a. Helicopter. The IROR is helicopter-lifted by means of a suspension sling assembly . This assembly is shown in figure 6-1 and table 6-1 . The storage bag ( 7 , fig . 6-1 ) is used to stow the remaining components when not in use . The

5

grounding device assembly ( 1 , fig . 6-1 ) is used to ground the helicopter lifting hook ( 2 , fig . 6-15 ) before hookup of the IROR and is fabricated locally . Refer to subparagraph b below for fabrication procedures for this device . The suspension sling assembly ( fig . 6-2 ) required to lift the IROR consists of four nylon web and chain legs connected to a one-foot diameter nylon web ring . Each leg is 23 feet long and consists of a 15-foot nylon web leg with an eight-foot chain assembly bolted to the end of the nylon web leg. The sling legs can be adjusted in length to compensate for the center of gravity or construction of the item to be lifted . Figure 6-3 shows a typical chain leg hookup of the suspension sling assembly. Instructions for sling preparation for the IROR are given in section III .

MS 156058 1-Grounding device assembly 2-Load binder 3-Quick-fit tiedown fastener 4-15-foot tiedown strap 5-Tape 6-Suspension sling assembly 7-Storage bag

b. Grounding Device Assembly. The grounding Figure 6-1. Helicopter lifting components. device assembly ( 1 , fig . 6-1 ) must be fabricated 6-1

C7

TM 9-1430-529-12-1 locally . Detailed procedures for fabricating this device are as follows .

( 1 ) Obtain a 2 -foot section of 1 -inch copper tubing ( 1 , fig. 6-4 ) or other suitable -2

material and fabricate as shown in A. (2 ) Obtain a 1 -inch strip of copper mate(4 ) or other suitable material , 10 inches

rial

long and fabricate as shown in B.

(3) copper

Attach the copper strip (4 ) to the tubing ( 1 ) with two self-threading

screws. (4 ) Obtain a piece of copper braid (2 ) or other suitable material , which has a minimum length of 26 feet and fabricate as shown in C.

(5 ) Attach one end of the copper braid (2 ) to the copper tubing ( 1 ) with a 1 /2-inch bolt, lockwasher, and nut .

(6 ) Obtain a 12-inch copper rod (3) or other suitable material , and fabricate as shown in D.

(7) Attach the remaining end of the copper braid (2 ) to the copper rod ( 3 ) with a 1/2 -inch bolt , lockwasher, and nut. MS 156059 (8 ) Insulate one-half of the copper tubing (1 ) with an insulating tape as shown in A.

c. Cargo Aircraft.

When the

1-12-inch web ring 2-15-foot nylon web leg 3-Grab link 4-8-foot chain leg

IROR is trans-

ported

by cargo aircraft , the preparation for travel procedure is the same as for the prime mover. It may be necessary to lower the IROR antenna, dependent upon the cargo compartment height limitations of the aircraft to be used .

Figure 6-2. Helicopter suspension sling-typical.

For detailed instructions on stowing the

IROR antenna, refer to paragraph 6-10.

3

1

MS 156060 1-Grab link 2-Tie point 3-Taped excess chain Figure 6-3. Suspension sling assembly-typical chain leg hookup. 6-2

C7

TM 9-1430-529-12-1 Table 6-1. Description of Helicopter Lifting Components

Item

Identification number

Suspension sling assembly (2 )

1670-00-902-3080

Description

Nylon and chain leg cargo sling ; 23 ft . long; 15,000 lbs . capacity

Nylon cord

Type I or III

Nylon cord , 1 /8 - in . diameter

8135-00-559-1531

Cellulose wadding,

MIL-C -5040 ,

Protective padding

cushioning material

Web strap ( 2 )

1670-00-360-0540

Nylon webbing, 15 ft . long , 1 ply

Load binder ( 2 )

3990-00-360-0248

Eccentric takeup , w/lever

Strap fastener ( 2 )

1670-00-360-0340

Quick-fit buckle

Adhesive tape

8135-00-266-5016

Pressure sensitive , 2 in. wide , 60 yds long

Storage bag

8460-00-245-6693

Cotton duck, OD, w/zipper

Grounding device

Fabricated locally

Refer to paragraph 6-5b for fabrication instructions

Spreader bar assembly

Fabricated locally

Not used on IROR

Nails

10D or 16D

10D 3 in . , 16D 3-1 /2 in .

assembly

INSULATING

-6″.

HOLE, 1/2" DIAMETER MATERIAL -24".

1" HOLE, 1/4" DIAMETER

" -1 ″ A

2"-

B

2

ELECTRICAL LUG HOLE, 12" DIAMETER

·312". C

3

12".

HOLE, 1/2" DIAMETER D

MI 70497 1-Copper tubing 2-Copper braid

3-Copper rod 4-Copper strip

Figure 6-4. Grounding devices assembly. 6-3

TM 9-1430-529-12-1

C13 Section III.

PREPARATION FOR TRAVEL

6-6. General

11 This section describes the preparation for travel for the improved range-only-radar ( IROR ) and its trailer by prime mover (par. 6-8 ) , by helicopter

10

(par . 6-9) , or by cargo aircraft ( pars . 6-8 and 6-10) .

6-7. Tools The tools required to prepare the IROR for travel are a common screwdriver , a crossrecessed wrench .

screwdriver,

and

869

a 3/4-inch open-end

6-8. Preparation for Travel ProceduresPrime Mover

MI 70514

a. The detailed procedures for preparing the IROR for travel are described below.

1-Receiver- transmitter cabinet 2-Intake -exhaust air vent drawer 3-Air vent cover 4-Ground rod stow bracket 5-Air vent cover 6-Antenna SAFETY SWITCH 7-Motor-generator assembly 8-Air vent cover 9-Radar set group cabinet 10-Intake-exhaust air vent drawer 11-Modulator-power supply cabinet

WARNING

To prevent injury to personnel working on or near the antenna, set the antenna SAFETY SWITCH (6 , fig. 6-5) on the pedestal to SAFE .

Figure 6-5. IROR air vent covers.

(1 )

Deenergize the IROR (table 3-11 ) .

(5 ) waveguide

Using

care

assembly

antenna protective on the antenna .

to

avoid

(3 , fig.

damage to the mount the

6-6) ,

shipping cover (2, fig . 6-6 )

WARNING (6) Prior to handling a system

power

cable , insure that the generator main power circuit breaker is set to off.

Secure

the

Prior to handling an on trailer cable of a major item , set the major item main power circuit breaker to off.

( 2 ) Disconnect all the power and data cables, and cap the connectors and receptacles with the protective caps .

(3 )

Close

and

secure

the

two

intake-

exhaust air vent drawers (2 and 10 , fig . 6-5 ) , one on the receiver-transmitter cabinet (1 , fig. 6-5 ) and one on the modulator power supply

(4 ) Manually rotate the antenna 6-6) to the maximum elevation angle .

6-4

(1 , fig .

shipping

cover

NOTE If the IROR is to be transported by cargo aircraft, perform the procedures in paragraph 6-10 for stowing the IROR antenna. Rotate the antenna so that it faces to (7) the curb side of the trailer .

(8) Engage the AZIMUTH STOW lock (3, fig. 6-9) by depressing and turning it 90 degrees clockwise . Manually elevate the antenna to 0 mils in elevation and engage the ELEVATION STOW lock (1 , fig. 6-9) by depressing and turning it (9)

cabinet (11 , fig. 6-5 ).

protective

by attaching the securing straps (5 , fig . 6-6 ) to the inner ring on the back of the antenna .

90 degrees clockwise .

C13

TM 9-1430-529-12—1

(10) Close and secure the air vent covers (3 , and 8 , fig . 6-5 ) on each side of the radar set group cabinet ( 9 , fig . 6-5 ).

( 14)

Remove the headset from the commu-

nication station ( 2 , fig . 6-11 ) and stow the headset behind the communications station panel (1 , fig . 6-11 ) .

(11 ) Close and secure the four air vent covers (5 , fig . 6-5 ) on the motor-generator

( 15) Close and secure the radar set group cabinet cover .

assembly ( 7 , fig . 6-5 ) .

( 12 )

Fold the protective covers

(2 and 4 ,

fig. 6-10 ) flat and secure with the turnlock fasteners on the radar set group cabinet and the motor-generator assembly .

( 16) Disconnect the ground rod cable ( 4 ) from the cable attach point ( 6) and the ground rod (3), and stow the cable in the road side fender well (2), locating these items in fig. 6-12. NOTE

(13)

Insure

that

all

chassis

drawers

and

panels in the radar set group are secured .

In batteries equipped with the stake puller kit (fig . 6-7 ) omit steps ( 18 ) and ( 19 ) and perform steps ( 20 and ( 21 ) below.

( 17)

Pull the ground rod from the ground .

( 18 ) Stow the ground rod in the ground rod stow brackets (4 , fig. 6-5 ) on the rear of the trailer .

(19) Remove the ground rod as described in (a) through (g) below . NOTE -5

Unless otherwise indicated, the key numbers shown below in parentheses refer to figure 6-8 .

(a) Position the tripod

3

(1 ) so that the

pulley ( 6 ) is directly over the ground rod . (b) Drive the

prime

mover toward the

tripod and hook the retrieving cable ( 2 ) to a towing point on the front of the vehicle .

(c) Place the ground rod grip (3 ) on the ground rod (4 ) and secure the latch .

(d) Attach the cable yoke to the eye of the grip .

(e) Insure

that

other

tripod

pad

is

directly under the retrieving cable.

(f) Back off the prime mover, stopping when the cable yoke has run to the cable restraining pin (5 ) . MI 70515 (g) If the

1-Antenna 2-Antenna protective shipping cover 3-Waveguide assembly 4-Air filter housing 5-Securing strap Figure 6-6. Mounting the antenna protective shipping cover.

ground

rod

has

not

pulled

free , and cannot be removed by hand , unlatch the grip, drive the truck forward , attach the grip to the ground rod, and back off the vehicle once more. (20) Stow the ground rod in the ground rod stow brackets (4 , fig . 6-5 ) .

6-5

C9 TM 9-1430-529-12-1 NOTE If the IROR all-weather shelter is emplaced , refer to TM 10-8340-203-13 for the preparation for travel procedures .

1

MI 70516

5

1-ELEVATION STOW lock 2-Spirit levels 3-AZIMUTH STOW lock 4-Elevation head

MI 70503

Figure 6-9. IROR pedestal head. 1-Ground rod grip 2-Straight-jawed grip 3-Retrieving cable 4-Pulley 5-Tripod (disassembled )

b. The detailed procedures for preparing the M514 trailer , which supports the IROR for travel , are as follows:

WARNING Figure 6-7. Stake puller kit. Insure that the front support ( 6 , fig. 7-1 ) is locked in the down position , and set 11

the handbrakes.

NOTE

Unless otherwise indicated , the key numbers shown below in parentheses refer to figure 7-1.

2 ( 1 ) Obtain the three leveling jack cranks (D1 ) from the fender well and install them on the

three

leveling jack

crankshafts (D3 ) .

(2 ) Retract the rear leveling jack (D2 ) until the weight of the trailer rests on the tires and the front leveling jacks , and the rear leveling jack is just clear of the ground . (3) Open the pintle hook (E3 )

on the prime mover by removing the pintle hook locking pin (E1 ) and lifting the spring -loaded

MI 70504

T-bar latch ( E2 ) . (4 ) Position the prime mover so that the pintle hook is directly below the lunette (E4 ). Engage the lunette on the open pintle hook by retracting the front leveling jacks . (5 )

1-Tripod 2-Retrieving cable 3-Ground rod grip 4-Ground rod 5 Cable restraining pin 6-Pulley Figure 6-8. Removal of ground rod. 6-6

(6 )

Close the pintle hook and insert the

pintle hook locking pin . (7)

Raise the trailer front support by per-

forming the following steps .

C13

TM 9-1430—529—12—1

(a) Remove the gravity the frame support bracket ( B1 ) .

pin

( B3 )

from

leveling jack upward to its vertical position and lock it by allowing the retaining pins to spring into the locking holes .

(b) Withdraw the spring-loaded locking pin (C1 ) in the upper section of the front NOTE support leg (B2 ) . (c) Lift the front support to the stow position, and allow the spring-loaded locking pin to spring back into the locking hole.

(d) Install the holes in the front support bracket .

(8 )

Remove

gravity pin through the support leg and frame

the

airbrake

hose

(4 ) from

the bracket on the lunette support (3) . Connect the hose to the coupling at the rear of the prime mover, and open the service coupling shutoff cock, permitting operation of the trailer hydraulic brakes from the prime mover.

When the IROR antenna is in the stowed position , for cargo aircraft transport , the rear leveling jack ( D2 ) must be completely retracted and stowed in the alternate stow position ( 45 degrees from the vertical ) . This position is shown on the radar set group cabinet cover placard.

(14) Release the trailer handbrakes using the handbrake lever ( 9 ) (one on each side of the A-frame ) .

c. Prior to leaving the checks should be made : ( 1 ) The antenna the SAFE position .

OR: (9) Detach the intervehicular cable plug assembly (2 ) from the storage bracket on the left side of the lunette support. Open and lock the spring-loaded cover on the cable connector, and plug the cable into the receptacle on the rear ofthe prime mover to provide power for the trailer lights. (10) Hook the safety chains ( 5 ) to the appropriate loops at the rear of the prime mover.

following

SAFETY SWITCH is in

(2) All the cables are disconnected and the connectors and receptacles properly capped . Power and data cables are stored in the prime mover. (3 ) The antenna is facing to the curb side of the trailer .

(4 ) The ELEVATION and the AZIMUTH STOW locks are engaged . cabinet and vent covers are

(11 ) Retract the two front leveling jack assemblies (11 ) completely , using the leveling jack cranks. Remove the leveling jack cranks

(5 ) secured .

All the

from the jack crankshafts ( 12) and stowthem and the rear leveling jack cranks in the road side fender well (1).

(6 ) secured .

The protective

(12) Pull out and lock the two spring- loaded retaining pins ( 10) for each of the two front leveling jacks. Rotate each jack upward by pulling on the

area the

covers are folded and

(7) The accessories are properly stowed in fender wells .

leveling jack handgrip (A4) and rest the leveling jacks on the pad (8) . Secure each leveling jack with its strap.

(8 )

The fender well covers are secured .

(9)

The ground rod is properly stowed .

retaining

( 10 ) stowed .

(13 )

Pull

out

the

spring-loaded

pins (A3 ) on the rear leveling jack; rotate the

The

front

support

leg

is

properly

6-7

C7

TM 9-1430-529-12-1

(11 )

The leveling jacks are properly stowed .

( 12 )

The

(14 )

trailer is properly connected to

the prime mover . the (13 )

The handbrakes are released.

The trailer lights are working properly .

(15 ) The trailer brakes are working (move prime mover a short distance and then

stop ).

2

3

USARMY

B.S.ARMY 19602

MI 70517

1- Radar set group cabinet 2-Protective cover (air vent) 3-Turnlock fastener

4-Protective cover (air vent) 5-Turnlock fastener 6-Motor-generator assembly

Figure 6-10. IROR protective covers folded. 6-8

C9

TM 9-1430-529-12-1

30

WARING

MI 70518 1-Communications station panel 2-Communications station 3-Cabinet cover support arms

4-Quick-disconnect pins 5-MAIN POWER circuit breaker

Figure 6-11. IROR radar set group preparation for travel and emplacement.

6-9. Preparation for Travel Procedures-

Helicopter a. The helicopter lifting kit (fig . 6-1 ) is provided for each major item in the improved HAWK system. The kit contains the items necessary to form the suspension sling assembly for each major item. The suspension sling assembly required to lift the IROR and the M514 trailer

(2 ) Locate the IROR so that the lunette (7, fig. 6-13 ) is downwind .

(3 ) Release the four snap fasteners on the rear and ends of the motor-generator cabinet cover (3 , fig . 6-14 ) . c. Prepare the below :

by helicopter consists of four nylon web and chain legs connected to a one-foot diameter nylon web ring . Each leg is 23 feet long and is made up of a 15-foot nylon web leg with an eight-foot chain assembly bolted to the nylon leg. For detailed procedures, refer to c below. b. Prepare the described below.

IROR

for

helicopter lift

as

suspension sling as described

WARNING

Inspect web leg before use for defects (burns, cut edges, or broken threads ) to prevent injury to personnel or damage to equipment from breaking of the legs.

( 1 ) For preparation for travel procedures for the IROR , refer to paragraph 6-8a. For preparation for travel procedures for the M514 trailer, refer to subparagraphs 6-8b ( 1 ) , ( 2 ) and ( 11 ) through ( 15 ); c(1) through ( 9 ) and ( 11 ) , except that front level-

(1 )

Lay the lifting sling

on top of the

radar set group cabinet with two adjacent chain legs hanging over forward of the cabinet and adjacent to the lifting points as shown ( 5, fig. 6-13 ).

ing jacks must be stowed vertically.

6-9

C9

TM 9-1430-529-12-1 (2 ) Wrap each chain leg through the leveling jack bracket as shown in figure 6-13. Insure that the grab link is forward of the bracket and clear of the brake handle under the jack bracket. Tape clear if necessary . Fasten link 3 of each chain in its grab link.

(5) The four sling legs are laid and taped so that they will not hang up during helicopter lift.

e . The using organization may be required to perform the following helicopter hookup procedures for the IROR .

( 3 ) Place the center loop of the lifting sling assembly on top of the elevation gear box , and lay the unattached sling legs down over the motor-generator cabinet cover so that the chain

WARNING

legs fall adjacent to the rear lifting clevis ( 2 , fig. 6-14 ) .

Attach each of the two sling legs to

The hookup crew must wear protective devices consisting of helmet liners , shell ,

the rear lifting eyes by passing one chain leg through each eye , and fasten link 24 of each

and goggles for protection against flying sand, dirt , dust, and debris .

(4 )

chain in its grab link. ( 5 ) Fasten loose chain ends with tape to prevent fouling (fig. 6-3 ) .

WARNING

(6 ) To prevent fouling of the sling legs before hookup , coil all four sling legs together

The hovering helicopter develops high static voltages in excess of 20,000 volts

on top of the

on the helicopter lifting hook (2 , fig. 6-15 ). Steps ( 1 ) through ( 6 ) below must

elevation

gear box, and wrap

with tape so that it will break away during lift . Insure that the sling legs are positioned and taped so that they will not hang up during lift . In particular , insure that the sling legs are taped clear of the antenna, modulator-power supply cabinet (3 , fig. 6-13 ) and receiver-transmitter cabinet (9 , fig. 6-13 ) .

(7) Drive the ground rod of the grounding device assembly into the ground next to the trailer.

be performed in the exact sequence given to insure maximum safety to the hookup personnel .

( 1 ) The hookup crew takes a position on the major item so that the helicopter lifting hook can be grounded from the right side and the 30.48 cm ( 1 -ft ) nylon web ring ( 1 , fig . 6-15) of the suspension sling assembly can be put on the hook from the left side .

( 8) Place the grounding device ( 2 , fig. 6-13 ) on top of the coiled slings ( 1 , fig . 6-13 ) . WARNING d. Prior to helicopter lift, lowing checks :

perform the fol-

for

The helicopter lifting hook must be grounded, using the grounding device (1 , fig. 6-1 ) and the ground connection must be maintained until the hookup is com-

The front support is locked in the down

pleted . If the hookup is not completed and the ground is disconnected , the hook

( 1 ) The trailer has been prepared travel , and the handbrakes have been set .

(2 ) position .

(3 )

must be grounded again before attempting to hook up the sling assembly . The front support jack is fully retrac-

ted and in the vertical position .

(4 ) The IROR has been prepared travel per paragraphs a, b, and c above.

6-10

for

(2 ) Using the grounding device , ground the helicopter lifting hook . While maintaining contact between the grounding device and the hook, grasp the hook by hand.

C13

TM 9-1430-529-12-1 (6 ) Retrieve the grounding device assembly and return it to the storage bag.

6-10. Stowing the IROR Antenna

When the IROR is transported by cargo aircraft, it may be necessary , as a height requirement, to stow the antenna . The procedures for stowing the antenna are described below. a. Rotate the antenna so that it faces toward the rear of the trailer.

b. Engage the AZIMUTH STOW lock ( 3 , fig. 6-9) by depressing and turning it 90 degrees clockwise . MI 70519

c. Manually position the antenna to 0 mils in 1-Radar set group cabinet 2-Road side fender well 3-Ground rod 4-Ground rod cable 5-Air vent cover 6-Ground rod cable attach point 7-Radar set group cabinet cover

elevation and engage the ELEVATION STOW lock (1 , fig. 6-9 ) by depressing and turning it 90 degrees clockwise .

d. Remove the five bolts (1 , fig. 6-17 ) which secure the pedestal support plate ( 2, 6-17 ) to the pedestal flange (3 , fig. 6-17 ).

Figure 6-12. IROR ground rod-preparation for travel and emplacement.

2

(3)

Engage the one-foot nylon web ring of

the suspension sling assembly into the hook, and make sure that the helicopter lifting hook latch (3 , fig. 6-15 ) has locked the ring in place. (4) hook.

Remove the grounding device from the

WARNING

To insure the safety of the hookup crew, step ( 5 ) must always be performed at the completion of the hookup . (5)

The

hookup

crew

must

leave

MS 156068

the

IROR to the right of the line-of-flight of the helicopter (fig. 6-16 ).

WARNING

The hookup crew must stay clear of the IROR until it is airborne (fig. 6-16 ).

1-Suspension sling assembly 2-Grounding device 3-Modulator-power supply cabinet 4- Road side rear suspension sling leg 5-Forward lift point 6-Road side front suspension sling leg 7-Lunette 8-Curb side front suspension sling leg 9-Receiver-transmitter cabinet Figure 6-13. IROR suspension sling assembly secured for helicopter pickup-front view (typical).

6-11

C13

TM 9-1430-529-12-1 e. Remove the six bolts

(4, fig.

6-17 ) that

secure the pedestal support plate to the pedestal support flange , and remove the pedestal support plate . f. Stow the pedestal support plate by taping it to the lunette .

g. Stow the 11 bolts in the right fender well.

h. Obtain

a

5 /8-inch

rope

at least

12

feet

long. i. Install the rope around the elevation head assembly as shown in figure 6-19. j. Position the

crane

at the lunette end of

the trailer . Secure the 5/8-inch rope to the crane and take up the slack in the rope . k. Remove the spring-loaded tilt-lock pin ( 3 , fig. 6-20 ) from the tilt stop ( 2, fig. 6-20 ).

Co

3 2 MS

WARNING

156069

1-Curb side front suspension sling leg 2-Curb side rear clevis

3-Motor-generator cabinet cover To prevent injury to personnel or damage to the antenna by the antenna assembly

Figure 6-14. IROR suspension sling assembly secured for helicopter pick-up-rear view (typical) .

falling backwards , do not remove the four bolts from the pedestal support flange until the crane is securely attached to the pedestal and the slack has been taken up.

the rear of the trailer until the weight of the antenna is supported by the crane.

1. Remove the four bolts (2 , fig . 6-18 ) that secure the pedestal flange (3 , fig . 6-18 ) to the pedestal support flange ( 4 , fig . 6-18 ). Stow the four bolts in the curb side rear fender well, and

n. Continue

to

lower the

antenna

pedestal

with the crane until the pedestal base

(4, fig.

6-20) contacts the tilt stop ( 2 , fig. 6-20 ).

secure the fender well cover.

CAUTION

o. Secure the pedestal in the tilted position by inserting the spring-loaded tilt lock pin ( 3 , fig . 6-20 ) through the tilt stop and the two holes (1 , fig. 6-20) in the pedestal .

Insure that the rope does not contact antenna cables while the antenna pedestal is being lowered . m. Allow a small amount of slack in the rope and manually tip the antenna pedestal toward

6-12

Remove and stow the rope in the curb side p. rear fender well .

q. Continue with preparation for travel procedures in paragraph 6-8a( 11 ) .

C7

TM 9-1430—529—12—1

ก

3. 2 1 -One-foot nylon web ring 2-Helicopter lifting hook 3-Helicopter lifting hook latch MS 156064 Figure 6-15. Hookup of suspension sling assembly to helicopter lifting hook.

HOOK-UP CREW 20' TO 30'

MAJOR ITEM

WIND

DURING APPROACH, RELEASE AND TAKEOFF

DURING HOOK- UP

HOOK-UP AREA

EMERGENCY HELICOPTER MOVES LEFT

EMERGENCY ALL GROUND PERSONNEL MOVE RIGHT

MI

70507A

Figure 6-16. Position diagram.

6-13

TM 9-1430-529-12-1

]

C7

?

3

2

1

MI 70522 MI 70524

1- Bolt ( 5 ) 2-Pedestal support plate 3-Pedestal support flange 4- Bolt ( 6 ) 5-Pedestal access door

Figure 6-19. IROR preparation for stowing antenna.

Figure 6-17. IROR pedestal support plate.

2

4

MI 70525 MI 70523

1- Antenna pedestal 2-Bolt 3-Pedestal flange 4-Pedestal support flange Figure 6-18. IROR pedestal flange.

6-14

1-Hole 2-Tilt stop 3-Spring-loaded tilt-lock pin 4-Pedestal base Figure 6-20. IROR tilt-lock pin and tilt stop.

C13

TM 9-1430-529-12-1

CHAPTER 7 EMPLACEMENT PROCEDURES

Section I.

7-1. Scope The detailed emplacement procedures for the improved range-only radar ( IROR) are presented in this chapter. Refer to TM 9-1425-525-1 for information concerning site selection and evaluation .

GENERAL

describe a typical method of setting up a completely emplaced radar from a mobile unit . These procedures cover arrival by prime mover or helicopter. They continue in sequence until the IROR is ready for orientation and alinement . Procedures for orientation and alinement are described in chapter 8.

7-2. Explanation of Procedures

procedures

The

Section II.

emplacing

for

the

IROR

EMPLACEMENT OF IMPROVED RANGE- ONLY RADAR AN /MPQ - 51

7-3. General

section

This

contains

detailed

emplacement

procedures for the improved range -only radar (IROR ) . The procedures begin with the arrival of the IROR at the battery site by either prime mover (par. 7-5) or helicopter (par . 7-6) . The procedures for raising the IROR antenna from the stowed position to the operating position are detailed in paragraph 7-7.

(b) Pull out and lock the spring- loaded retaining pins (A3 ) and rotate the jack downward, using the handgrip (A4).

(c) Release the retaining pins to secure the jack in the down position. (d) Adjust the jack until the jack pad rests firmly on the ground.

(e) Cross the stay bars over the jack support frame. 7-4. Tools

The

tools

required

are :

a common

screw-

driver, a cross-recessed screwdriver, a 3/4 -inch open-end wrench, and a sledge hammer.

(3 ) Lower the front support by performing steps (a) through (d) below .

(a) Remove the gravity pin ( B3 ) that secures the front support leg (B2 ) to the frame 7-5. Emplacement Proceduressupport bracket (B1 ). Prime Mover a. The detailed procedures for emplacing the M514 trailer, which supports the IROR are as follows .

( 1 ) Set the trailer handbrakes by pulling the handbrake levers ( 9 , fig . 7-1 ) toward the front of the trailer. (2)

Lower the rear leveling jack (D2 ) by

performing steps (a) through (e) below.

(b) While supporting the front support , pull the spring-loaded locking pin (C1 ). Slowly lower the front support to the down position . (c) Release the locking pin to lock the front support in the down position .

(d) Replace the gravity pin in the frame support bracket . (4) Lower the front leveling jacks by performing steps (a) through (e) below for each front leveling jack.

(a) Remove the stay bars from the jack. (a) Remove the strap which secures the jack assembly ( 11 ) .

7-1

C13 TM 9-1430-529-12-1

B

3 2

2

A

3

2

12.

10

11

น

1- Road side fender well 2-Intervehicular cable plug assembly 3-Lunette support 4-Airbrake hose 5-Safety chain 6-Front support 7-Lifting handle 8-Pad and strap assembly 9-Handbrake lever 10-Spring-loaded retaining pin 11 -Front level jack assembly 12-Jack crankshaft Figure 7-1.

7-2

MS 309338

A 1-Rear leveling jack pad 2- Stay bar 3-Spring-loaded retaining pin 4-Leveling jack handgrip B 1-Frame support bracket 2-Front support leg 3-Gravity pin

Trailer M514 -preparationfor travel and emplacement (sheet 1 of2).

TM 9-1430—529—12-1

C13

D

C

2

E

MS 164672 E

C 1-Spring-loaded locking pin

D 1-Leveling jack crank 2-Rear leveling jack 3-Leveling jack crankshaft

Figure 7-1.

1-Pintle hook locking pin 2-Spring-loaded T-bar latch 3-Pintle hook 4- Lunette

Trailer M514 -preparation for travel and emplacement (sheet 2 of2).

7-3

C16

TM 9-1430-529-12-1 (d) Disconnect plug assembly

WARNING

the

intervehicular

cable

(2 ) from the receptacle on the

rear of the prime mover , and unlock the springloaded dust cap, allowing it to cover the cable contact pins . Stow the intervehicular cable on its stow bracket on the lunette support.

For the safety of personnel, use the leveling jack handgrip (12 ) when raising or lowering the leveling jacks .

(e) Remove the locking pin

(E1 ) from

the pintle hook (E3 ) on the prime mover. CAUTION To

prevent

(f) Release the spring-loaded T-bar latch (E2 ) and open the pintle hook .

damage to the leveling

jack, pull out and lock the springloaded retaining pins ( 10 ) until the jack pad is all the way down. This procedure must be followed or the

(g) Adjust each front leveling jack until the lunette (E4 ) is free of the pintle hook .

jack arm could break at the leveling

(h) Move the prime mover forward , close the pintle hook , and install the locking pin .

jack pivot. (b) Pull out and lock the spring- loaded retaining pins (one on each side of the jack), and

b. The detailed procedures for emplacing the ROR are as follows . If the ROR antenna is in

rotate the jack to the down position , using the handgrip .

the stowed position , refer to paragraph 7-7 antenna raising procedures .

for

(c) Release the retaining pins to secure the jack in the down position . (d) Obtain a jack crank

WARNING (D1 ) from the

road side fender well and engage it on the jack crankshaft. (e) Adjust the jack rests firmly on the ground .

until the jack

To prevent injury to personnel working on or near the antenna , set the SAFETY

pad SWITCH (6 , fig. 6-5) on the pedestal to the SAFE position .

(5 ) Release the trailer from the prime mover as described in (a) through (i) below. (a) Disconnect the safety chains ( 5 ) from the prime mover and stow the chains on the lifting handle ( 7 ) located on the A-frame.

(1 )

Release

the

ELEVATION

stow

lock

( 1 , fig . 6-9 ) and manually rotate the antenna to the maximum elevation angle . (2 )

Disconnect the securing straps (5 , fig.

6-6 ) from the back of the antenna . (b) Close the service coupling cock on the rear of the prime mover.

shutoff (3)

(c) Disconnect the airbrake hose (4 ) from the rear of the prime mover , and stow it on the bracket on the lunette support (3).

7-4

Using

care

to avoid damage to the waveguide assembly ( 3 , fig. 6-6 ) , remove the antenna protective shipping cover (2 , fig . 6-6 ) and stow it in a protected area .

TM 9—1430—529—12—1

C16 (4 ) Manually degrees elevation .

rotate

the

antenna

to

0

(5) Remove the ground rod from the stow bracket (4 , fig . 6-5 ) . Emplace the ground rod .

(14) Open the intake-exhaust air vent drawer (10, fig. 6-5 ) beneath the modulator-power supply cabinet (11 , fig. 6-5 ) only when the ambient temperature exceeds 38° C ( 100° F) . (15 )

(6)

ROR as indicated below.

Remove the ground rod cable (4 , fig.

6-12) from the road side fender well (2, fig. 6-12) and attach it between the rod and the cable attach point

32

Level the

(a) Adjust the jacks until the tires are at least an inch off the ground .

(6, fig. 6-12).

(b) Uncover the two spirit levels ( 2, fig. 6-9) at the rear corner of the elevation head .

(6.1) Insure that the resistance to ground on the ground rod is 25 ohms or less.

(c) Adjust the jacks until the bubbles are centered in the spirit levels .

NOTE

(d) Cover the spirit levels with their protective covers .

Refer to TM 9-1425-525-1 , appendix I, for detailed instructions for measuring the resistance ofthe ground rod . It may be necessary to use additional ground rods and/or buried wire to achieve 25 ohms or less resistance to ground.

(e) Remove and stow the jack cranks in the road side fender well. (16 ) Release the AZIMUTH stow lock ( 3 , fig. 6-9 ) by depressing and turning it 90 degrees counterclockwise.

NOTE ROR all-weather shelter is to be emplaced , perform step (7 ) below.

If the

TV

WARNING

to

(7) Emplace 10-8340-203-13 ).

the

all-weather

shelter

( TM

( 8 ) Raise the radar set group cabinet cover (7 , fig. 6-12 ) and secure it by inserting the two quick-disconnect pins ( 4 , fig . 6-11 ) into the support arms ( 3, fig. 6-11 ).

to

ve

Insure that the generator main power circuit breaker is set to off before connecting the power cable to the ROR. (17) Connect the power cable to its receptacle on the cable entry panel . ( 18) Connect the two data cables to their receptacles on the cable entry panel.

(9) Insure that the MAIN POWER circuit breaker (5, fig. 6-11 ) is set to the OFF position .

(10 ) Remove the headset from its storage location behind the communications station panel (1 , fig. 6-11 ) and connect it to the communications station ( 2 , fig . 6-11 ).

NOTE If the ROR all-weather shelter is emplaced , perform step c below.

c. Place the all-weather shelter in the stow position (TM 10-8340-203-13) .

(11 ) Open the two air vent covers (2, fig. 6-10 and 1, fig. 6-12) at each end ofthe radar set group cabinet . NOTE (12 ) Open the four air vent covers (4, fig. 6-10) on the motor-generator assembly ( 6 , fig. 6-10) .

The all-weather shelter is placed in the stow position when the radar is radiating or when maintenance is not being performed .

( 13) Open the intake-exhaust air vent drawer (2, fig. 6-5 ) , beneath the receiver-transmitter cabinet (1 , fig. 6-5),

d. Prior to energizing the checks should be made :

ROR, the following

7-5

C16

TM 9-1430-529-12-1 7-7. Raising the (1 )

The

leveling

jacks

are

Stowed Position

emplaced.

(2 ) The antenna the SAFE position.

(3)

ROR Antenna from the

properly

SAFETY SWITCH is in WARNING

The ground rod and ground rod cable

are properly emplaced . Insure that the power cables are discon(4) The radar set group cabinet cover is locked in the open position .

(5)

The protective covers are opened .

(6 )

All the vent covers are opened .

(7) The centered .

(8 )

bubbles

in the spirit

nected prior to starting assembly operations.

a. Obtain a 5/8-inch rope at least 3.6 meters long . b. Install the rope around the elevation head

levels are

assembly as shown in figure 6-19. c. Position the crane at the lunette end of the trailer. Secure the rope to the crane, and

The AZIMUTH stow and ELEVATION

take up the slack in the rope. d. Remove the spring-loaded tilt-lock pin

stow locks are disengaged.

(3,

fig. 6-20) from the tilt stop . WARNING WARNING Prior to handling a system power cable, insure that the generator main power circuit breaker is set to off. Prior to

After the antenna is raised , insure that the four bolts securing the pedestal support flange to the pedestal flange are secured before the crane is detached

handling an on-trailer power cable of a major item, set the major item main power circuit breaker to off.

from the antenna pedestal.

(9)

e. Slowly raise the

The cables are properly connected .

(10 ) The headset is connected to the communications station.

antenna with the crane ,

until the pedestal support flange (4 , fig. 6-18 ) rests firmly against the pedestal flange (3 , fig. 6-18). Maintain tension on the rope. f. Remove

the

four

bolts

from the

fender

well and use them to secure the pedestal flange 7-6. Emplacement Procedures - Helicopter

to the pedestal support flange. g. Insert the spring-loaded tilt-lock pin

into

the tilt stop. a. Remove

and

disassemble

the

suspension

h. Obtain the pedestal support plate which is taped to the lunette .

sling assembly .

b. Stow the helicopter lifting storage bag and stow the bag.

kit

in

the i. Remove the 11 pedestal support plate bolts from the fender well and use them to secure

c. Secure the motor-generator cabinet cover (3 , fig. 6-14 ) in place with the four snap

the pedestal support plate ( 2 , fig . 6-17 ) to the pedestal support flange (3 , fig . 6-17 ) and the

fasteners.

pedestal flange (3 , fig. 6-18 ). j. Remove the rope from the crane and the

d. Emplace the M514 trailer (par. 7-5a) . elevation head assembly . e. Emplace the

k. Connect the power cables to the

ROR.

ROR (par. 7-5b and c).

(

7-6

-12-1 TM 9-1430-529

C16

CHAPTER 8

ORIENTING AND ALINING

Section I.

ORIENTATION AND ALINEMENT OF THE ROR

IZ

8-1. Purpose Accurate target firing data and successful target engagement largely depend on alinement of the HAWK battery. If the proper procedures are not carefully followed , misleading target information will be displayed on the major item scopes, and effective target engagement will be degraded. The alinement of the ROR is accomplished after the HIPIR's have been alined and are available. At this time the ROR is first alined with HIPIR A, then the procedure is repeated with HIPIR B.

b. Alternate Method. When the ROR is emplaced so that line of sight with HIPIR A or B does not exist, the alternate method of alinement is then used for that radar. In this method, the M2 aiming circle is used, by the HIPIR personnel, to determine the position at which the ROR antenna is set while the ROR antenna synchro is nulled . Essentially the M2 aiming circle is used to relay the HIPIR antenna azimuth angle around the line of sight obstruction to the ROR antenna. The alternate non -line of sight procedures are contained in table 8-1.

NOTE For detailed information concerning the setting and the reading of the ROR azimuth mil ring refer to section II. 8-2.

Methods of Orienting and Alining the ROR

10-2 There are two methods of orienting and alining the ROR, a primary and an alternate . Subparagraphs a and b below give a general description of the two methods. a. Primary Method. When the ROR is emplaced so that line of sight with HIPIR A or B exists the primary method of orienting and alining is used with that radar. Once the HIPIR is available, ROR

8-2.1 .

Alinement Operations

Figure 8-0.1 illustrates the sequence of alinement procedures for the ROR. Only the operations pertaining directly to the ROR are shown . The unshaded areas indicate the operations performed at the ROR during alinement.

alinement is accomplished as follows . The ROR antenna and HIPIR antennas are first telescopically alined with each other, this provides a common mechanical orientation . At this time, if the ROR is being alined with HIPIR A, the ROR azimuth mil ring is adjusted to coincide with that of HIPIR A. While the antenna is maintained in this position the

8-3.

Orientation and Alinement During Blackout Conditions

During blackout conditions, either of the methods discussed in paragraph 8-2 above may be employed with the assistance of an instrument light.

ROR antenna synchro is nulled against the synchro information received from the appropriate HIPIR. This establishes an electrical reference by which the

NOTE

ROR antenna positioning circuits generate antenna positioning commands in response to synchro information received from the HIPIR.

The key numbers shown below in parentheses refer to figure 8-1.

8-1

TM 9-1430-529-12-1

ALINEMENT SEQUENCE

HIPIR A

C16

ROR

MAJOR ITEM OPERATION HIPIR B

BCC

ROR

PERFORMA PREPARATION AND PROCEED WHEN HIPIR A BECOMES AVAILABLE HIPIR A/ROR FRONTSIGHT ON ROR TELESCOPE

BACKSIGHT ON HIPIR A TELESCOPE

INSURE ROR ECA POWER SWITCH IS SET TO ON

SET AZIMUTH MIL RING TO AZIMUTH OF HIPIR A ANTENNA

DIRECT BCC PERSONNEL TO PRESS THE FC A RECEIVE ONLY PUSHBUTTON

ROTATE HIPIR A CLUSTER ADJUST HANDWHEEL FOR INDICATION OF ZERO ON AZIMUTH PARALLAX COMPUTER

PRESS FC A RECEIVE ONLY PUSHBUTTON

NULL ANTENNA SYNCHRO

ANTENNA REMAINS BACKSIGHTED ON HIPIR TELESCOPE WHEN ENERGIZED

DIRECT BCC PERSONNEL TO PRESS THE FC A RELEASE PUSHBUTTON

PROCEED WHEN HIPIR BIS AVAILABLE

PRESS FC A RELEASE PUSHBUTTON

MS 432479

Figure 8-0.1. Sequence of ROR alinement operations (sheet 1 of 2).

8-2

C16 TM 9-1430-529-12-1

ALINEMENT SEQUENCE

HIPIR A

ROR

MAJOR ITEM OPERATION HIPIR B

BCC

HIPIR B/ROR BACKSIGHT ON HIPIR B TELESCOPE

FRONTSIGHT ON ROR TELESCOPE

DIRECT BCC PERSONNEL TO PRESS THE FC B RECEIVE ONLY PUSBUTTON

ROTATE HIPIR B CLUSTER ADJUST HANDWHEEL FOR INDICATION OF ZERO ON AZIMUTH PARALLAX COMPUTER

PRESS FC B RECEIVE ONLY PUSHBUTTON

NULL ANTENNA SYNCHRO

ANTENNA REMAINS BACKSIGHTED ON HIPIR B TELESCOPE WHEN ENERGIZED

DIRECT BCC PERSONNEL TO PRESS THE FC B RELEASE PUSHBUTTON

INSERT DISTANCE TO ILLUM VALUES FOR HIPIR A/B

PRESS FC B RELEASE PUSHBUTTON

PREPARE ROR FOR LOCAL OPERATION

MS 432480

Figure 8-0.1. Sequence of ROR alinement operations (sheet 2 of 2).

8-3

C13

TM 9-1430-529-12-1

a. The M42 instrument light ( 4 ) located in lefthand fender well , is used in conjunction with the M62 on the IROR . The M42 contains a battery power lead (5 ), a dovetail fitting (6 ), and a lead with a pen light ( 2 ) on the end . This light fits

2

into a bracket ( 1 ) which is mounted on the alinement telescope (7 ) . The lamps are illuminated by means of a control switch (3 ) . During alinement at night, the telescopes on the radars are sighted on the pen lights.

NOTE

MI

70616A

The key numbers shown below in parentheses refer to figure 8-2. 1-Alinement telescope 2 -Pen light 3-Control switch 4-M53- E1 instrument light 5-Dovetail fitting

b. The M53-E1 instrument light ( 4 ) usually is used with the M109 alinement telescope and fire cutout device on the ILCHR and is located in the ILCHR forward compartment . It is similar to the M42 and can be used in place of it on the IROR. It contains a pen light ( 2 ) used for sighting . The control switch ( 3 ) is of a different type from the control switch on the M42 and is mounted forward

Figure 8-2. Mounting the M53-E1 instrument light.

8-4. Preliminary Procedures Before alinement of the IROR (table 8-1 ) can

on the side of the instrument light.

be attempted steps a through d below must be accomplished .

2

3 a. Emplace the IROR graphs 7-5 through 7-7.

as

described

in

para-

b. Energize the power generators in accordance with the instructions posted on the inside of the generator's panel , and set the output of the generators for 425 vac .

5 c. Establish

interunit

communications

after

the IBCC has been emplaced . MS 164552 1-Bracket 2-Pen light 3-Control switch 4-M42 instrument light 5-Battery power lead 6-Dovetail fitting 7-Alinement telescope

Figure 8-1. Mounting the M42 instrument light.

d. Remove telescope mount and elbow from inside the control-indicator panel before applying power to the radar . 8-5. Synchro Control System Detailed functional schematics of the synchro control system for the IH battery are contained in TM 9-1425-525-12-2, together with synchro alinement procedures .

8-5

TM 9-1430-529-12-1

C9

Table 8-1 . Orientation and Alinement Procedure With the IHIPIR

Operation Normal indication

Step

Corrective procedure

NOTE The following procedures are coordinated from the IBCC. 1.

Preparation. а.

Insure that the LOCAL/REMOTE switch ( 20 , fig. 2-1 is set to LOCAL .

b.

Set the RADIATE-STANDBY switch ( 23 , fig . 2-1 ) to STANDBY .

jj

C. d.

Set the SAFETY switch ( 5 , fig . 8-3 ) to SAFE .

Insure that the IROR is level (refer to par . 7-56 ( 15 )). NOTE If it is not possible to measure the distance from the IROR to IHIPIR A or IHIPIR B because of the terrain , the distance must be calculated or obtained by some other means.

e.

Measure and record the distance in meters or feet between the IROR pedestal center and the IHIPIR A pedestal center.

f.

Measure and record the distance in meters or feet between the IROR pedestal center and the IHIPIR B pedestal center.

g.

Install the M62 alinement telescope on the IROR telescope mount (fig. 8-4) .

h.

Loosen the screws that secure the azimuth mil ring (8 , fig. 8-3) .

2.

Alinement with the IHIPIR Antenna.

NOTE The IROR must be alined to IHIPIR A before it is alined to IHIPIR B during IROR alinement. If IHIPIR A is not available , aline to IHIPIR B using the procedure for IHIPIR A.

а.

Direct the IHIPIR personnel to insure that the LOCAL/REMOTE switch is set to LOCAL.

b.

Direct IBCC personnel to insure that the IROR electronic control amplifier power switch is set to ON.

C.

If line of sight exists between the IROR and IHIPIR , proceed directly to step k below. If line of sight does not exist , proceed to step d. Also refer to the note below. NOTE If line of sight does not exist between the IROR and the IHIPIR's, but line of sight does exist between the IROR and the reference point used in orienting the IPAR, this reference point should be used to expedite the alinement procedure. If line of sight does not exist between the IROR and the reference point used in orienting the IPAR, a new reference point must be established . This reference point must be located at least 305 meters ( 1000 feet ) from the IROR and the IHIPIR being alined , and may be different for each IHIPIR . The M2 aiming circle must be located at this reference point and be visible to the IROR and the IHIPIR .

અં

d.

Make certain that all personnel are clear of the IROR antenna and then set the SAFETY switch to OPERATE .

e.

Position the IROR telescope towards the M2 aiming circle by adjusting the azimuth and elevation handwheels .

f.

Set the SERVO FIL circuit breaker on the power distribution panel to OFF .

g.

Set the SAFETY switch to SAFE and wait approximately 1 minute before proceeding to allow the motor generator to coast to a stop.

8-6

1 :

C9

TM 9-1430-529-12-1 Table 8-1 . Orientation and Alinement Procedure With the IHIPIR -Continued Operation

Step

Normal indication

Corrective procedure

2h.

When directed by the M2 aiming circle personnel , manually backsight the IROR antenna until the vertical crosshair of the IROR alinement telescope is centered with the M2 aiming circle telescope .

i.

If alining with IHIPIR A : (1)

Set the IROR azimuth mil ring to indicate the upper scale azimuth indication on the M2 aiming circle .

(2)

Tighten the screws that secure the IROR azimuth mil ring .

(3)

Manually position the IROR antenna clockwise to the same azimuth as IHIPIR A azimuth mil ring .

j.

Proceed to step q.

k.

Make certain that all personnel are clear of the IROR antenna and then set the SAFETY switch to OPERATE .

L

Position the IROR telescope towards the IHIPIR antenna by adjusting the azimuth and elevation handwheels.

I

m.

Set the SERVO FIL circuit breaker on the power distribution panel to OFF .

n.

Set the SAFETY switch to SAFE and wait approximately 1 minute before proceeding.

0.

When directed by the IHIPIR personnel , manually backsight the IROR antenna until the vertical crosshair of the IROR alinement telescope is centered on the IHIPIR alinement telescope .

p.

If alining with IHIPIR A: ( 1)

Set the IROR azimuth mil ring to indicate the same azimuth as the IHIPIR A antenna azimuth mil ring.

(2)

Tighten the screws that secure the IROR azimuth mil ring. NOTE The IROR antenna must be manually held in place at the proper azimuth until the alinement procedures in step q through y below are completed.

q.

Rotate the appropriate DISTANCE TO ILLUM handwheels ( 13 and 18 , fig . 2-2) for IHIPIR A or IHIPIR B until the adjacent METERS indicators ( 19 and 12 , fig. 2-2) indicate zero.

WARNING

Insure that no personnel stand less than 45.1 meters in front of the radiating side of the IROR antenna , since the IROR may be transmitting when the LOCAL/ REMOTE switch is in the REMOTE position.

r. Set the SERVO FIL circuit breaker on the power distribution panel to ON .

S. Set the LOCAL/REMOTE switch to REMOTE . t. Request the IBCC personnel to press the RECEIVE ONLY pushbutton from firing console A. When the IROR is being alined with IHIPIR B , request the IBCC personnel to press the RECEIVE ONLY pushbutton from firing console B.

8-7

TM 9-1430-529-12-1

C9

Table 8-1. Orientation and Alinement Procedure With the IHIPIR -Continued Operation

Step

Normal indication

Corrective procedure

2u.

Rotate the appropriate CLUSTER ADJUST handwheel ( 20 or 11 , fig . 2-2) clockwise for IHIPIR A or IHIPIR B until the azimuth parallax computer indicator ( 21 , fig . 2-2 ) indicates zero .

V.

When the IROR is being alined with IHIPIR A , raise the locking lever ( 6 , fig . 8-3 ) and adjust the CLUSTER ORIENT ILLUMINATOR # 1 control clockwise ( 4 , fig . 8-3 ) until a null is obtained on the null meter ( 2 , fig . 6-35 ) . When the IROR is being alined with IHIPIR B , raise the locking lever ( 7 , fig . 8-3 ) and adjust the CLUSTER ORIENT ILLUMINATOR #2 control ( 3 , fig. 8-3 ) clockwise until a null is obtained on the null meter (2 , fig. 8-3 ) .

NOTE IHIPIR A must be alined to the IROR before IHIPIR B during IROR alinement. Press and hold the null meter sensitivity switch ( 1 , fig. 8-3) and adjust the appropriate CLUSTER ORIENT control clockwise for a null indication on the null meter.

x.

Turn the locking lever to lock the appropriate CLUSTER ORIENT control without disturbing the meter null.

ઠં

w.

Release the CLUSTER ORIENT control and the null meter sensitivity switch .

2.

Make certain that all personnel are clear of the IROR antenna and then set the SAFETY switch to OPERATE .

‫א‬

y.

The azimuth of the IROR antenna does not change . If the IROR antenna rotates 3200 mils , a false null was obtained in step v. ( 1 ) With line of sight , perform steps f, g, o, and v ; in step v, readjust the CLUSTER ORIENT control clockwise to the correct null . (2 ) Without line of sight , perform steps f, g, i ( 3 ) , and u ; in step v, readjust the CLUSTER ORIENT control clockwise to the correct null. αα .

Set the SAFETY switch to SAFE and wait 1 minute (to prevent antenna drift) , then proceed to step ab.

ab.

Set the SERVO FIL circuit breaker to OFF .

ac.

Sight through the alinement telescope . The alinement telescope is pointing directly at the IHIPIR telescope or at the azimuth of the IHIPIR .

ad.

Set the LOCAL/REMOTE switch to LOCAL .

ae.

For IHIPIR B , do not readjust azimuth mil ring.

(1)

With line of sight , perform steps 2m, 2n, 20 through z.

(2)

Without line of sight , perform steps 2f, 2g, i( 3 ) through z.

af.

Notify the IBCC personnel that the alinement procedures are completed , and direct them to press the ROR RELEASE pushbutton on the appropriate firing console.

ag.

Notify the IHIPIR personnel that the alinement procedures are completed .

8-8

TM 9-1430-529-12-1

C13

Table 8-1. Orientation and Alinement Procedure With the IHIPIR-Continued Operation

Normal indication

Step

Corrective procedure 2ah.

Rotate the appropriate DISTANCE TO ILLUM handwheels for IHIPIR A or B until the adjacent METERS indicators indicate the distance recorded in steps le and f

ai.

Remove and stow the alinement telescope inside the control - indicator panel .

aj.

Prepare the IROR for local operation ( chapter 3 ).

2

D

7

STEP

2

ACCES

MI 70648

1-Null meter sensitivity switch 2-Null meter 3-CLUSTER ORIENT ILLUMINATOR #2 control 4-CLUSTER ORIENT ILLUMINATOR # 1 control 5-SAFETY switch 6-Locking lever 7-Locking lever 8-Azimuth vernier ring

1-Alinement telescope M62 2-Telescope mount assembly

Figure 8-3. IROR antenna pedestal.

Figure 8-4. IROR alinement telescope-mounted.

MI 70649

8-9

TM 9-1430-529-12-1

C16

Section II.

8-6.

AZIMUTH MIL RING

Introduction

This section explains how to read and adjust the azimuth mil ring and the vernier scale. Part A of figure 8-5 illustrates the vernier scale while part B illustrates the azimuth mil ring. These two items provide antenna position data. The azimuth mil ring is read to provide data accurate to within 10 mils , while the vernier scale is used to provide data accurate to within one mil. The azimuth mil ring data, together with the vernier scale data, provides the antenna azimuth mil ring reading.

8-7.

Description of the Azimuth Mil Ring and Vernier Scale

mils. These numbers continue with 1 (6, fig. 8-5), which has a value of 100 mils. This is followed by 2 (7, fig. 8-5), which has a value of 200 mils, and so on, through 63 (4, fig. 8-5) which has a value of 6300 mils, and finally to zero with a value of 6400 mils. Long unnumbered marks located between two numbered marks divide the area inside the numbered marks into two 50-mil sections. Each 50-mil section contains four equally- spaced unnumbered short marks which form five 10-mil sections. The mil ring is secured by three lockscrews which are loosened for alinement. b. Vernier Scale.

The vernier scale is so mounted

that it can be used to aid in reading the azimuth mil a. Azimuth Mil Ring. When the antenna is oriented and alined, the azimuth mil ring lined up with the zero (0) mark on the vernier scale can be read to obtain the ROR antenna azimuth position in mils. The azimuth mil ring contains 640 equallyspaced marks which divide the ring into 10 - mil

ring. The value of the mil ring is always read at a point exactly opposite the zero (0) mark on the vernier scale. There are 11 long, medium and short marks that divide the vernier scale into 10 equal sections . The first, middle, and last marks are numbered zero (0), 5, and 10, respectively, (3, 2, and

sections equalling 6400 mils . These marks are in three lengths, long, medium and short. Every long

1, fig. 8-5). None of the short marks are numbered, but each has a value of one . Each of the ten sections

mark has a number, beginning with zero (0) (5, fig. 8-5) . The zero mark has a value of zero mils or 6400

of the scale has a value of one. The position of the vernier scale is fixed and cannot be adjusted.

2

3

1-10 (long mark ) 2-5 (long mark ) long mark) 3-0 (zerolong mark ) 4-63 (6300 mils long mark ) 5-0 (zero milslong mark) 6-1 (100 mils7-2 (200 mils-long mark )

10

5

PART A VERNIER SCALE

2

63-

5 PART B AZIMUTH MIL RING

MS 432483 Figure 8-5.

8-10

Azimuth mil ring/vernier scale.

TM 9-1430-529-12-1

C16 8-8.

How to Read the Azimuth Mil Ring Using the Vernier Scale

The azimuth mil ring reading when used with the vernier scale indicates the antenna azimuth position in mils . The azimuth mil ring reading is always taken opposite the zero (0) mark on the vernier scale.

of the azimuth mil ring is all that is required. First, loosen the three azimuth mil ring thumbscrews. Next, rotate the azimuth mil ring until the zero (0) mark on the vernier scale is exactly opposite the 100-mil mark. Tighten the three lockscrews. Now the azimuth mil ring is set to 100 mils .

Part A of figure 8-6 shows the vernier scale zero mark lined up with the 100-mil mark on the azimuth mil ring. In this example, the mil ring reading simply reads 100 mils . But a simple mil ring reading is not always possible. Often, the azimuth mil ring

VERNIER SCALE

must be read, using the vernier as shown in part B of figure 8-6. In this situation, notice that the vernier

10

scale zero mark is not lined up with a mil ring mark. Instead, the zero mark is somewhere between 100

5

О

mils and 110 mils. This means that the reading is at least 100 mils, but less than 110 mils. The vernier scale now must be used to indicate the number of mils between 100 and 110. This number is more than

ulu

zero, but less than 10. When located, this number is added to 100 to complete the azimuth mil ring reading. This is how the vernier scale is read. Observe each mark ( B , fig . 8-6 ) from 0 to 10 on the

-100 MILS

vernier scale. By design, only one of these marks lines up with a mark on the azimuth mil ring . In this example, the mark numbered 5 lines up perfectly with a mark ( 150 mils) on the mil ring. The value of this mark on the vernier scale is 5. This number,

2 AZIMUMUTH MIL RING PART A

when added to 100 , gives a total of 105 mils. The azimuth mil ring reading then is 100 mils read on the azimuth mil ring, plus 5 mils read on the vernier scale. This means a total reading of 105 mils.

VERNIER SCALE

10

8-9.

5

О

How to Set the Azimuth Mil Ring

a. Introduction.

There are two methods used to

adjust the azimuth mil ring setting. The method selected depends on the value of the azimuth mil ring setting. One method is used for those azimuth mil ring settings which can be read directly on an azimuth mil ring mark. This azimuth mil ring setting is divisible by 10 and requires a single adjustment. A second method is used for those azimuth mil ring settings that lie between two marks on the azimuth mil ring. This azimuth mil ring setting is not divisible by 10 and therefore requires two adjustments.

ulu

110 MILS

100 MILS

2 AZIMUTH MIL RING PART B

b. Azimuth Mil Ring Setting For Values Divisible By 10. A single fine adjustment is made when the value of the azimuth mil ring is divisible by 10. Assume the value of the required setting is 100 mils (A, fig. 8-6) . This value is divisible by 10. One setting

MS 432484

Figure 8-6. How to use the azimuth mil ring using the vernier scale.

8-11

TM 9-1430-529-12-1

C16

c. Azimuth Mil Ring Setting For Values Not Divisible By 10. Two adjustments to the azimuth mil ring are made when the azimuth mil ring setting is not divisible by 10. The first is a coarse adjustment. This is followed by a fine adjustment. Both adjustments are made to the azimuth mil ring.

8-7).

VERNIER SCALE

10

5

О

(1) Azimuth mil ring coarse adjustment (fig. The coarse adjustment adjusts the azimuth

mil ring to within 10 mils of the azimuth mil ring setting. Assume the value of the desired azimuth mil ring setting is 105 mils. This value is not divisible by 10. Notice on figure 8-7 that 105 mils on the azimuth mil ring is located somewhere between the 100-mil and 110-mil marks. The lower value mark (100 mils) is called the coarse adjustment mark. Before any adjustments are made, loosen the azimuth mil ring thumbscrews. Line up the 100- mil coarse adjustment

-100 MILS

150 110 MILS MILS

2

mark exactly opposite the vernier scale zero (0) mark. This completes the coarse adjustment . This

AZIMUTH MIL RING

setting also provides data needed to make the fine adjustment to the azimuth mil ring.

FINE ADJUSTMENT MARKS

MS 432486

(ig. 8-8). (2) Azimuth mil ringfine adjustment f The fine adjustment to the azimuth mil ring is made by lining up the fine adjustment mark on the azimuth mil ring exactly opposite the fine adjustment mark on the vernier scale. These fine adjustment marks must be located and identified.

Figure 8-8. Azimuth mil ringfine adjustment.

(a) Vernier scale fine adjustment mark. The vernier scale fine adjustment mark is found by subtracting the value of the coarse adjustment mark VERNIER SCALE from the value of the desired azimuth mil ring setting. Assume an azimuth mil ring setting of 105 mils results in: 105 - 100 = 5. The vernier scale fine 10

5

O adjustment mark equals 5 mils and is located at the vernier scale long mark numbered 5. ( b) Azimuth mil ring fine adjustment mark. The azimuth mil ring fine adjustment mark is located directly below and slightly to the left of the

山

vernier scale fine adjustment mark numbered 5. Note and identify this mark on the azimuth mil ring

150 MILS

100 MILS

exactly opposite the vernier scale fine adjustment mark (fig . 8-8 ) . When this adjustment has been completed, tighten the azimuth mil ring thumb-

2

screws. This completes the azimuth mil ring setting of 105 mils.

AZIMUTH MIL RING

FINE ADJUSTMENT MARK

COARSE ADJUSTMENT MARK MS 432485

Figure 8-7. Azimuth mil ring coarse adjustment.

8-12

(fig. 8-7) . The fine adjustment is now made by lining up the azimuth mil ring fine adjustment mark

(3) Azimuth mil ring setting rules. mil ring setting rules are listed below.

Azimuth

(a) Obtain the azimuth mil ring setting. (b) Determine the value of the coarse adjustment mark.

TM 9-1430-529-12-1

C16 (c) Loosen the azimuth mil ring lockscrews. (d) Adjust the azimuth mil ring to the coarse adjustment mark. (e) Calculate the value of the vernier scale fine adjustment mark.

Locate the azimuth mil ring fine adjustment mark. (g) Line up the azimuth mil ring fine adjustment mark exactly opposite the vernier scale fine adjustment mark. (h) Tighten the azimuth mil ring lockscrews.

8-13

)

TM 9-1430-529-12-1

C9

CHAPTER 9 LIGHTNING PROTECTION

NOTE: THE RADIUS OF THE CONE IS EQUAL TO TWICE ITS HEIGHT.

9-1 . Scope a. This

chapter

contains

instructions

for

protecting the IROR from direct lightning and lightning - induced

surges

of

high

current .

Although the standard battery emplacement procedures require grounding of equipment , additional protection is needed in areas where the battery site is higher than the surrounding terrain and in areas where severe electrical storms are experienced .

HEIGHT OF CONE

RADIUS OF CONE MI 70656

b. The

" cone

of

protection "

concept

is Figure 9-1. Cone of protection concept.

employed in the following procedures to protect the major items of the battery . Theoretically , a cone of protection originates at the uppermost point of a vertical shielding conductor , and extends conically downward . The formula for determining the radius of the circular base of the cone, and thus the protected ground area, is as follows : the radius of the cone is twice the height of the vertical- shielding conductor (fig. 9-1 ). In general , the shielding conductor will protect all items or structures completely

NOTE If the equipment to be protected is located on a mound or tower, the height of the shielding conductor must be increased an amount equal to the height of the mound or tower.

enclosed by the cone , but will not significantly influence lightning seeking a point outside the cone .

c. The shielding conductor must extend 30 cm above the top of the shielding conductor mast to provide an air terminal to intercept the electrical discharge at a safe distance above vulnerable and flammable parts or structures .

c. Individual site requirements may dictate changes in the procedures described in this

d. Use a 1.83 meter (6 feet ) length of wooden molding to protect the shielding conductor from mechanical damage at ground level .

chapter. Changes are permissible as long as equivalent protection is provided for the system .

e. Emplace a shielding conductor ground rod at least 1.83 meters (6 feet) beyond the mast (3.6

9-2. General Lightning Protection Emplacement Instructions The following general instructions apply in the emplacement of all vertical shielding conductors .

a. The mast with vertical-shielding conductor must be emplaced at least 1.83 meters (6 feet) from the equipment being protected . b. However, if the distance from the equipment to the mast exceeds 1.83 meters ( 6 feet ) , the height of the mast, shown in figure 9-2 , must be increased by one-half the added distance to remain within the cone of protection.

meters ( 11.83 feet ) minimum from the equipment to be protected) . The distance between the equipment ground rod and the shielding conductor ground rod should be extended to the maximum practical distance . Drive the shielding conductor ground rod 1.83 meters ( 6 feet ) into the ground .

NOTE If bedrock prevents driving the shielding conductor ground rod 1.83 meters ( 6 feet ) deep , dig a radial trench ( 3.6 meters long by 0.91 meters deep (12 by 3 feet ) ) from the base of the mast and away from the equipment being protected. Connect No. 6 copper wire to the vertical shielding conductor and bury the wire in the trench .

9-1

TM 9-1430-529-12-1

C9

9-3. Lightning Protection Fabrication

CAUTION

for IROR Do not connect the equipment ground rod to the shielding conductor ground rod.

f. Connect

a

bonding

conductor

of

No.

Fabricate a lightning protection assembly for the IROR in accordance with paragraph 9-2 and

6

figure 9-2 . Refer to table 9-1 for a list of mate rials required . Although figure 9-2 shows the IPAR, the IROR layout is similar.

copper wire between the base of the shielding conductor and the ground rod and bury the bonding conductor at least 15 cm ( 5.9 inches ) underground . Table 9-1 . Materials Required g. Measured resistance between the shielding conductor ground rod and equipment ground rod should not be more than 0.5 ohm per 30.48 cm (1 foot ) distance or less than 1 ohm total between the two ground rods. In the event any of the resistance measurements are higher than allowed , insure that the ground rods are driven into the ground to a sufficient depth . If resistance readings are still too high after the ground rod has been driven into the ground as far as is practicable , drive additional rod (s ) connected in parallel with the original rod or relocate the original ground rod . In the event the resistance measurements are lower than allowed , separate the two ground rods and recheck the resistance .

9-2

Description

Part no .

Pole , utility , 10.65 m ( 1 each ) ROD , ground, 1.83 m x 9175247 1.59 cm ( 1 each ) WIRE, copper, No. 6 , 26.56 m 4.11 mm dia STAPLES , 2.54 cm long , 0.95 cm dia MOLDING , Ranier wood ground wire, No. RGM- 2 , 1.83 m STAPLES, 7.62 cm long , 2.81 cm in. dia

National stock no.

5975-00-296-0762 6145-00-284-1402 5315-00-161-9862

TM 9-1430-529-12-1

C9

30.5cm (1ft.)

MAST

SHIELDING CONDUCTOR

1.83m (6 ft.)

2.44m (8 ft.)

4.88m (16 ft) MIN .

3.05m ( 10 ft .)

BONDING CONDUCTOR

1.83m (6 ft.)

1.83m (6 ft .) Min.

BONDING CONDUCTOR EQUIPMENT GROUND ROD

SHIELDING CONDUCTOR GROUND ROD

MAXIUM DISTANCE

1.83m (6 ft.)

SHIELDING CONDUCTOR GROUND ROD

1.83m (6 ft.)

VERTICAL SHIELDING CONDUCTOR MAST

EQUIPMENT GROUND ROD

MI

70659D

Figure 9-2. Typical radar lightning protection layout.

9-3

Re

TM 9-1430-529-12-1

APPENDIX

A

REFERENCES

Refer to TM 9-1425-525-L for a list of other publications pertinent to this material and associated equipment.

A-1

二 oncer This

1 TM 9-1430-529-12-

C11

APPENDIX B BASIC ISSUE ITEMS LIST

Section I.

B-1.

INTRODUCTION

Scope

b. Basic Issue Items List - Section III. Not applicable .

This appendix lists basic issue items and items troop-installed or authorized required by the crew/

c. Illustrations

operator for operation of radar set AN/MPQ -51 (XO- 1 ) (IROR ) .

d. Indexes - Section V. Not applicable .

Section IV.

Not applicable .

e. Abbreviations. Not applicable . B-2.

General

This appendix sections :

is divided

into the following B-3.

a. Items Troop-Installed or Authorized List Section II. A list , in alphabetical sequence , of items which, at the discretion of the unit commander,

Special Information

For inventory of those loose components and parts which are included in radar set AN/MPQ-51 (XO-1 ) ( IROR) , refer to TM 740-525, appendix C.

may accompany the end item, but are not subject to be turned in with the end item.

Section II. ITEMS TROOP INSTALLED OR AUTHORIZED LIST

(1) SMR CODE

(2) NATIONAL STOCK NUMBER 8340-00-823-6965

(3) DESCRIPTION Reference Number & Mfg Code

Tent, console

Usable On Code

(4) UNIT OF MEAS

(5) QTY AUTH

ea

1

Mil-T-43182 (81349 )

B-1 /( B-2 blank)

TM 9-1430-529-12-1

APPENDIX

C

MAINTENANCE ALLOCATION CHART

C-1.

General

This appendix provides a summary of the maintenance operations covered in the equipment manuals. It authorizes categories of maintenance for specific maintenance functions on repairable items and components, and the tools and equipment required to perform each function . This appendix may be used as an aid in planning maintenance operations.

which is a certified standard of known accuracy, to detect and adjust any discrepancy in the accuracy of the instrument being compared with the certified standard. (7) Install. To set up for use in an operational environment such as an emplacement site or vehicle.

(8) Replace. To replace unserviceable items with serviceable assemblies , subassemblies , or parts.

C-2. Explanation of Format for MAC Page a. Group Number. The numbers in this column identify components , assemblies, and modules within the next higher assembly. b. Functional Group. This column lists the item names of component units, assemblies , subassemblies, and modules on which maintenance is authorized. c. Maintenance Functions. This column indicates

(9) Repair. To restore an item to serviceable condition . This includes, but is not limited to, inspection, cleaning, preserving, adjusting , replacing, welding , riveting, and strengthening . (10) Overhaul. To restore an item to a completely serviceable condition as prescribed by maintenance serviceability standards using the Inspect and Repair Only as Necessary (IROAN) technique.

the maintenance category at which performance of the specific maintenance function is authorized. Authorization to perform a function at any cate-

in appearance, performance , and life expectancy.

gory also includes authorization to perform that function at higher categories. Maintenance functions will be limited to and defined as follows:

This is accomplished through complete disassembly of the item, inspection of all parts or components, repair or replacement of worn or unserviceable

( 1) Inspect. To determine serviceability of an item by comparing its physical, mechanical, and electrical characteristics with established standards.

elements ( items ) using original manufacturing tolerances and specifications, and subsequent reassembly of the item.

(11) Rebuild. To restore an item to a standard as nearly as possible to original or new condition

The codes used represent the various maintenance categories as follows: (2) Test. To verify serviceability and to detect electrical or mechanical failure by use of test equipment. (3) Service. To clean, preserve, to charge, and to add fuel, lubricants, cooling agents, and air.

(4) Adjust. To rectify to the extent necessary to bring into proper operating range. (5 ) Aline. To adjust specified variable elements of an item. to bring to optimum performance.

Code

Maintenance category

C O

Operator/crew Organizational maintenance

F H

Direct support maintenance General support maintenance

D

Depot maintenance

d. Tools Required. The numbers appearing in this column refer to specific tools and equipment which are identified by these numbers in the tools required page.

(6) Calibrate. To determine the corrections to be made in the readings of instruments of test equipment used in precise measurement. Consists of the comparison of two instruments , one of

e. Remarks. The letters appearing in this column refer to specific remarks which appear on the remarks page.

C- 1

TM 9-1430-529-12-1

C-3. Explanation of Format for Tools Required Pages a. Tool Code. The numbers in this column correspond to the numbers used in the tool required column of the MAC. The numbers indicate the

umn indicate the maintenance category normally allocated the facility. c. Nomenclature. This column lists tools, test, and maintenance equipment required to perform the maintenance functions.

applicable tool for the maintenance function. b. Maintenance Category. The codes in this col-

C-2

d. Tool Number. This column lists the Federal stock number.

TM 9-1430-529-12-1 MAINTENANCE ALLOCATION CHART

FOR

Radar Set AN/MPQ- 51

CHART NUMBER 10674604 MAC PAGE 1

1430

Regulator, Voltage

1530

Power Supply Subassy

TOOL REQD .

REMARKS

OVERHAUL

REBUILD

REPAIR 0

H

D

4

0

0

H

D

5

0

0

F

H

D

6

0

H

D

7

F

H

D

H

D

8

9

0

o

о

1735

Test Set Subassy

F

F

1790

Computer, Radar Set Parallax

O

o

1805

Drive , Electro-Mechanical

0

F

1925

Control , Computer

0.

O

0

1935

Control , Subassy

0

F

F

1945

Drive, Mechanical Housed

F

F

2010

Amplifier, Flectronic Control

0

O O O

Test Set

0

о

0

D

1

H

D

F

F

H

D

0

0

0

H

D

10

0

F

F

F

H

D

11

F

0

H

D

12

F

F

H

D

13

[14

F

H

D

H

D

F

0

0

2230

Generator, Sweep

0

0

0

2290

Control , Radar Set

0

0

2325

Transmission , Mechanical Azimuth

0

2335

Transmission , Mechanical Elevation

H

D

15

O

H

D

16

O

H

D

17

O

FHD

18

F

O

H

D

19

B

20

F

F

H

D

21

F

0

H

D

22

0

F

H

D

0

F

H

D

23

F

H

D

24

O

H

D

25 26

0

F

2445

Panel , Power Distribution

0

2525

Relay Assy

2555

Cabinet

2600

Antenna

F

F

F

2700

Modulator Power Supply

0

0

0

0

O

Cabinet , Electrical Equipment

O 0

22

Inter-Communication Station

O

2395 2440

22

D

O

19

H

O

D

O

O

он

O

F

0

O

O

0

O

O

Indicator, Range

0

0

O

2165

D

O

0

H

B

O

F

B

Control Indicator Assy

14

0

о

Starter, Gas Tube

2150

0

O

0

0

0

o

0

2050

O

O

o

0

o

O

o

о

0

F

A

00

o

1725

0

O

0

O

O O

Amplifier Computer

0

O

O

O

O O O O

1710

o

REPLACE 0

0

O

INSTALL

ALIGN

3

O

O

O ၁

O

CALIBRATE

ი SERVICE

D

O

H

O

Panel Adjusting Voltage Balance

0

O

1390

F

0

O

Regulator, voltage

2

O

1325

D

O

Power Supply

H

O

O

1310

O

Radar Set Group

0

O

O

1300

M

1

k

[4

Motor Generator

j

O O O

0900

F

Radar Set AN/MPQ- 51

O

0100

ADJUST

TEST

FUNCTIONAL GROUP

INSPECT

GROUP NUMBER

MAINTENANCE FUNCTIONS e f g h i c d

--

b

‫معا‬

• 2750

Control, Power Supply

2780 Modulator Power Supply Subassy SMI FORM 1134, 1 FEB 68 REPLACES AMSMI -S FORM 62 , WHICH IS OBSOLETE

0 0

0 0

0 0

F

F

F

H

D

F

H

D

C-3

C4

TM 9-1430-529-12-1 MAINTENANCE ALLOCATION CHART

FOR Radar Set AN/MPQ- 51 CHART NUMBER 10674604 MAC PAGE

O

2830

Generator , Pulse

O

0

0

2910

Panel, Indicator

0

3000

Receiver Transmitter

0

3050

Receiver Transmitter Subassy

3065

3090

ว

.REQD TOOL

H

D

28

F

F

H

D

29

F

F

H

D

0

0

H

D

Control Detector Assy

0

0

0

H

D

0

0

H

D

0

0

H

D

H

D

F

H

D

31

F

H

D

32

F

F

H

D

33

0

0

H

D

34

0

H

D

35

F

H

D

36

D

D

H

D

37 38

0

Amplifier, Intermediate Frequency

3140

Amplifier Assy

3180

Generator, Pulse

3190

Drive , Tuning

3220

Magnetron Power Supply

F

3290

Amplifier, Electronic Control

O

Control Amplifier

3410

Intake Unit, Air

O

O

0

3450

Oscillator, Radio Frequency (Tuning Drive)

0

F

[14F

O

D

3490

Amplifier, Intermediate Frequency

0

O

O

O

F

3520

Timer, Sequential

0

0

0

F

H

D

3530

Duplexing Mixer Group

F

F

F

F

F

H

D

3540

Generator, Thermal Noise

0

0

0

F

F

H

D

3600

Pedestal, Ant enna

0

0

F

F

H

D

39

3610

Rotating Head Assy

F

F

F

F

H

D

40

0

F

F

H

D

41

F

F

H

D

O

H

D

H

D

43 44

O

о ‫נדי‬

[24F

3710

Base Assy , Antenna Pedestal

0

0

3725

Cover Access Pedestal Base

3740

Azimuth Data Assy

3790

Ring & Shaft Assy

F

F

3910

Drive, Gear Assy , Azimuth

F

F

F

3960

Pressurization Unit

0

0

0

Friction Drag Assy

F

O

F

F

H

D

F

F

H

D

F

F

H

D

H

D

F

H

D

F

H

D

F

F

O

‫נדי‬

O

0

‫ניי‬

0

‫נדי‬

O O

0

24[

F

4[

3980

‫ניי‬

F

G

Syncro & Bracket Assy

O

O

O O

x4[

3670

0

14[

0

O

0

‫معا‬

F

[24

Voltmeter & Potentiometer Assy 4010 SMI FORM 1134, 1 FEB 68 REPLACES AMSMI -S FORM 62, WHICH IS OBSOLETE

F

F

F

445

O O O O

H

о

O

F

O

о

F

F

O

0

O

Drive Gear Assy , Elevation

0

O

3620

0

442

3130

O

Amplifier Assy

o о o о

0

H

O

0

O

0

B

D

0

30

O

Control Ferrite Attenuator Assy

0

O

0

O

0

о

0

B

O

0

3120

3360

C-4

REMARKS

L.

OVERHAUL

REBUILD

R 1EPAIR

INSTALL

CALIBRATE

REPLACE

0

‫די‬

O

27

0

0

ว

0

D

[14

O

0

O

Switch, Interlock

о

2820

ALIGN

ADJUST

SERVICE

TEST

INSPECT

FUNCTIONAL GROUP

1

k

j

E

GROUP NUMBER

MAINTENANCE FUNCTIONS f ghi C de

b

a

45

B

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART

FOR

Radar Set AN/MPQ-51

10674604 CHART NUMBER REMARKS PAGE 1 REMARKS CODE

REMARKS

A- b

Testing to be performed in accordance with TM 9-1430-510-12/ 1 .

A- C

Painting of the radar at organizational level is limited to spot painting in accordance with TB 746-92-2 .

A-F

Calibration will be performed on individual items in accordance with TB 750-236 .

B-h

Tools required are listed for the specific subassembly .

B- 1

Tools required are listed for the specific subassembly .

SMI FORM 1134-1 , 1 FEB 68 REPLACES AMSMI -S FORM 62-1 , WHICH IS OBSOLETE

C-5

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART FOR Radar Set AN/MPQ - 51 CHART NUMBER

10674604

TOOLS REQUIRED PAGE 1 TOOL CODE CATEGORY

1-b

0

NOMENCLATURE

Stop Watch, Grade II

6645-250-4680

Multimeter AN /PSM- 6

6625-957-4374

Multimeter IS- 505 D/X

6625-243-0562 5995-072-5895 1430-933-4847

Cable, W-25 ( 10044365 or 10110444) Cable, W- 26 ( 10106498 )

1430-973-1830

Wavemeter (10106490)

1420-884-9910

Lacquer, White

8010-242-6315

Enamel , Light Green . Semi- Gloss

8010-087-0103

C

Enamel , Light Grey , Semi - Gloss

8010-225-4650

C

Enamel , Lusterless , Olive

8010-848-9272

C

Brush, Paint, Oval

8020-239-0959

0

1 -C

Brush . Wire . Scratch

7920-291-5815

Cloth . Wiping

7920-205-1711

Brush . Dusting

7920-282-9743

C

Cleaner, Vacuum, Hand

7910-530-6260

C

Cloth, Wiping

7920-205-1711

C

Brush, Paint

8020-889-7918

Primer . Zine Chromate Mil - P- 8585

8010-582-5318

Paint , Enamel TT - E- 529

8010-844-8089

0

Screwdriver . CT Phillips Tip #2

5120-234-8913

O

5120-234-8912

0

Screwdriver, CT Phillips Tip #3 Wrench, Open End Dble Hd 3/8 - 7/16

3-C

с

Cleaner , Vacuum. Hand

7910-530-6260

3 h

0

Screwdriver, CT Phillips Tip #1

5120-240-8716

4-C

C

Same as 3-C

4-h

O

Knife . Pocket 2 3/8 / 2 9/16 Cutting Blade

0

Wrench, Box & Open End Comb Offset

2-C

2-h

5-C

0

5-b

5 -h

5120-595-9028

5/16

7340-240-5943

5120-228-9503

Screwdriver , CT Phillips Tip #2

5120-234-8913

Screwdriver, FT 8" blade

5120-227-7360

Multimeter AN/PSM-6

6625-957-4374

Same as 3-C Multimeter AN /PSM- 6

6625-957-4374

0

Multimeter, Digital

4935-938-8108

0

Wrench, Box & Open End Comb Offset

Wrench . Box & Open End Comb 9/16 SMI FORM 1134-2, 1 FEB 68 REPLACES AMSMI -S FORM 62-2, WHICH IS OBSOLETE

C-6

TOOL NUMBER

13/16

5120-228-9511 5120-895-9570

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART

FOR

Radar Set AN /MPQ - 51

CHART NUMBER

10674604

TOOLS REQUIRED PAGE 2

TOOL CODE CATEGORY 6-C

6-h

NOMENCLATURE

0

Same as 3-C

0

Cloth, Wiping

0

Wrench, Box & Open End Comb

TOOL NUMBER

7920-205-1711 5120-895-9569

1/2

O

Key, Socket Head Screw Hex Drive Size .050

0

Same as 3- h

7-b

0

Same as 5 -b

7 -c

0

Same as 3-c

7-d

O

Screwdriver . FT 3/16"

5120-278-1270

5" long

5120-227-7360

7-h

Screwdriver, FT 1/21

8-C

0

Same as 6-C

9- C

0

Same as 3-C

9-h

0

Key , Socket Head Screw Hex Drive Size .050

10-d

0

Same as 7-d

10-h

0

Screwdriver, FT 3/8"

0

Wrench. Box & Open End Comb

11-C

0

8" long

5120-198-5401

5120-287-7502

8" long

5120-895-9569

1/2

7920-205-1711

Cloth , Wiping

Same as 6-C

12- C

12-h

0

Same as 9 - h

Q

Wrench. Box & Open End Comb 1/2

13- C

0

Same as 6-C

14-d

0

Same as 7-d

14-h

0

Pliers , Diagonal Cutting 6"

5120-895-9569

5110-250-8253

long

Pliers Straight Rd Needle Nose w/o Cut 0 0

Solder ( SN 60 Wrap 2) of Mil -S - 6872 Soldering Iron , Electrical w/Tips

6 1/2"

1/16 115V

Soldering Aid w/Wire Brush on End 8" long

5120-293-3481 3439-269-9610 3439-346-7538 5120-611-7136

Same as 3-C

15.0 15-h

5120-198-5401

0

Same as 3- h Same as 7-h

16-C

0

16-d 16-h

Same as 6-C Same as 7 -d

0

Same as 9- h

17-b

Multimeter AN/PSM- 6

17.C

Same as 3-C

Screwdriver FT 9/64 0 17-d SMI FORM 1134-2, 1 FEB 68 REPLACES AMSMI -S FORM 62-2 , WHICH IS OBSOLETE

6625-957-4374

5120-287-2505

C-7

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART Radar Set AN/ MPQ- 51 FOR

CHART NUMBER

10674604

TOOLS REQUIRED PAGE

TOOL CODE CATEGORY

NOMENCLATURE

17-d

0

Same as 7-d

17-h

0

Same as 14-h

18-b

0

Multimeter TS- 505 D/V

18 -b

O

Same as 17-b

O

Multimeter TS- 505- D/V

18-h

19-b

3

TOOL NUMBER

6625-243-0562

Same as 9-h

19-c

6625-243-0562

Same as 11- C

19-I

0

Screwdriver , CT Phillips Tip #1

20-c

0

Same as 3-G

20-h

5120-240-8716

Same as 9-h

0

Same as 14 -h

21-C

0

Screwdriver FT 1/4 " Same as 6- C

21-h

0

Screwdriver CT Phillips Tip #2

5120-234-8913

Fuse Puller, Plier Type

5120-224-9453

22-b

0

Same as 18-b

22-C

0

Same as 6- C

22-d

0

Same as 7-d

22-h

Screwdriver, FT 9/32

5120-278-1282

/ " Blade.

5120-242-5862

3 " Blade

Screwdriver , CT Phillips

5120-234-8913

Tip #2

Same as 3-h

0

Wrench , Box & Open End Comb Offset 5/16 Wrench, Box & Open End Comb 1/2"

52202289503 5120-895-9569

0

Wrench, Open End , Fxd Dble Hd 3/16 - 7/32

5120-277-1324

7340-240-5943

24-C

0

Knife, Picket 2 3/8 - 2 1/16 Cutting Blade Same as 6-C

25-b

0

Same as 18- b

25-C

0

Same as 6- C

25-h

0

Screwdriver, FT 9/32 , 3 " Blade

5120-242-5862

0

Screwdriver, CT Phillips Tip #2

5120-234-8913

26-b

0

Same as 6-C

27-b

0

Same as 19-b

27-h

0

Wrench, Box & Open End Comb Offset

O

Screwdriver, CT Phillips Tip #2

23-h

Same as 6-C 28 -C SMI FORM 1134-2, 1 FEB 68 REPLACES AMSMI -S FORM 62-2 , WHICH IS OBSOLETE

C-8

5/16

5120-228-9503

5120-234-8913

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART Radar Set AN/MPQ- 51

FOR

CHART NUMBER

10674604

TOOLS REQUIRED PAGE

TOOL CODE CATEGORY

NOMENCLATURE

29-C

0

Same as 6- C

30-b

0

Same as 18- b

30-C

0

Same as 6- C

30-h

0

Same as 14-h

0

Stripper, Wire Hand Pivot Handle

31-b

0

Same as 19-b

31-C 32-b

0 0

Same as 6-C

32-C

4 TOOL NUMBER

5110-268-4224

Same as 17-b

Grease, Mil- G- 3278

9150-985-7246

0

Cloth, Wiping

7920-205-1711

33-C

0

Same as 6- C

34-b

O

Same as 19-b

34- C

0

Same as 6-C

34-h

Screwdriver , FT 9/32 , 3" Blade

5120-242-5862

Same as 14 -h Stripper, Wire Hand Pivot Handle 0

Same as 18-h

35b

0

Same as 17-b

35-d

O

Screwdriver , FT 3/16 , 5 " Blade

35-h

0

Same as 14-h

0

Stripper , Wire Hand Pivot Handle

36-C

0

Same as 6-C

36-h

0

Screwdriver , CT Phillips Tip #2

37-C

0

Same as 6- C

38-C

0

Same as 6- C

39- C

0

Same as 6-

40- C

0

5110-268-4224

5120-278-1270

5110-268-4224

5120-234-8913

Cloth . Wiping

7920-205-1711

Brush, Paint 2 " wide

8020-550-8361

Primer , Coating Zinc Chromate Mil-P-8585

8010-515-2208

Enamel , No. 24087

8010-844-8089

Brush, Wire Scratch

7920-255-5135

41- C

0

Same as 6-C

41-h

0

Screwdriver , Ft 9/64" , 5" Blade

0 Screwdriver, FT 3/8 " , 8 " Blade 0 Key , Socket Head Screw Hex Drive 8/16 SMI FORM 1134-2, 1 FEB 68 REPLACES AMSMI - S FORM 62-2 , WHICH IS OBSOLETE

5120-287-2505 5120-287-2502 5120-240-5274

C-9

TM 9-1430–529-12-1

MAINTENANCE ALLOCATION CHART Radar Set AN/MPQ- 51 FOR

CHART NUMBER

10674604

TOOLS REQUIRED PAGE

TOOL CODE CATEGORY 17-d

0

NOMENCLATURE

Same as 14 - h

18-b

Multimeter TS- 505 D/V

18-b

Same as 17-b

18 -h

0

19-c

6625-243-0562

Same as 9- h

Multimeter TS- 505- D/V 0

TOOL NUMBER

Same as 7-d

17-h

19-b

3

6625-243-0562

Same as 11- C

19-I

0

Screwdriver, CT Phillips Tip #1

20-c

0

Same as 3- G

20-h

O

Same as 9-h

5120-240-8716

Same as 14- h

21-C

0

21-h

O

Screwdriver CT Phillips Tip #2

5120-234-8913

0

Fuse Puller, Plier Type

5120-224-9453

22-b

4 " Blade

Same as 18- b

22-C

0

Same as 6-C

22-d

0

Same as 7-d

22-h

0

Screwdriver , FT 9/32

0

Screwdriver, CT Phillips Tip #2

0

Same as 3-h

0

5120 228 9503 5120-895-9569

0

Wrench, Box & Open End Comb Offset 5/16 Wrench, Box & Open End Comb 1/2" Wrench , Open End , Fxd Dble Hd 3/16 .- 7/32

23-h

0

Knife , Picket 2 3/8 - 2 1/16 Cutting Blade

7340-240-5943

24-C

0

Same as 6- C

25-b

0

Same as 18- b

25-C

0

Same as 6- C

25-h

0

Screwdriver, FT 9/32 , 3 " Blade

5120-242-5862

0

Screwdriver , CT Phillips Tip #2

5120-234-8913

26-b

0

Same as 6- C

27-b

0

Same as 19-b

0

5120-242-5862

3 ″ Blade

Wrench, Box & Open End Comb Offset

27-h

Screwdriver , CT Phillips Tip #2

28-C 0 Same as 6- C SMI FORM 1134-2 , 1 FEB 68 REPLACES AMSMI -S FORM 62-2 , WHICH IS OBSOLETE

C- 8

5120-278-1282

Screwdriver FT 1/4 " Same as 6- C

5120-234-8913

5/16

5120-277-1324

5120-228-9503 5120-234-8913

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART Radar Set AN/MPQ- 51 FOR CHART NUMBER

10674604

TOOLS REQUIRED PAGE

TOOL CODE CATEGORY O 29-C Same as 6-C

4

NOMENCLATURE

30-b

0

Same as 18-b

30-C

0

Same as 6- C

30-h

0

Same as 14 -h

0

Stripper, Wire Hand Pivot Handle

TOOL NUMBER

5110-268-4224

31-b

0

Same as 19-b

31-C 32-b

0 0

Same as 6-C

32-C

0

Grease , Mil- G- 3278

9150-985-7246

0

Cloth, Wiping

7920-205-1711

33-C

0

Same as 6-C

34-b

0

Same as 19-b_

34-C

0

Same as 6-C

34-h

0

Screwdriver , FT 9/32 , 3 " Blade

0

Same as 14 -h

0

Stripper, Wire Hand Pivot Handle

0

Same as 18 -h

35b

0

Same as 17- b

35-d

0

Screwdriver , FT 3/16 , 5 " Blade

35-h

0

Same as 14- h

0

Stripper, Wire Hand Pivot Handle

0

Same as 6- C

36-C

Same as 17- b

36-h

0

Screwdriver, CT Phillips Tip #2

37-C

0

Same as 6- C

38-C

0

Same as 6-C

39- C

0

Same as 6-

5120-242-5862

5110-268-4224

5120-278-1270

5110-268-4224

5120-234-8913

O

Cloth , Wiping

7920-205-1711

0

Brush, Paint 2 " wide

8020-550-8361

0

Primer , Coating Zinc Chromate Mil-P-8585

8010-515-2208

O

Enamel , No. 24087

8010-844-8089

0

Brush, Wire Scratch

7920-255-5135

41- C

0

Same as 6-C

41-h

0

Screwdriver, Ft 9/64" , 5 " Blade

5120-287-2505

0

Screwdriver, FT 3/8 " , 8 " Blade

5120-287-2502

40- C

0 Key, Socket Head Screw Hex Drive 8/16 SMI FORM 1134-2, 1 FEB 68 REPLACES AMSMI - S FORM 62-2 , WHICH IS OBSOLETE

5120-240-5274

C-9

TM 9-1430-529-12-1

MAINTENANCE ALLOCATION CHART FOR Radar Set AN/MPQ- 51 CHART NUMBER

10674604

TOOLS REQUIRED PAGE 5

TOOL CODE CATEGORY

NOMENCLATURE

42-b

0

Same as 18-b

42- C

0

Same as 6- C

42-h

0

Screwdriver , FT 1/8 " , 2 " Blade

43- C

0

Same as 6- C

43-h

0

Screwdriver , FT 9/64 "

5 " Blade

TOOL NUMBER

5120-236-2140

5120-287-2505

44-h

0

Screwdriver , FT 3/8 " , 8 " Blade

5120-287-7502

45-h

O

Wrench, Box & Open End Comb 5/8" oppg

5120-542-2425

Screwdriver , FT 3/16 " , 8 " Blade

5120-180-0708

SMI FORM 1134-2, 1 FEB 68 REPLACES AMSMI -S FORM 62-2, WHICH IS OBSOLETE

4M 4་

C - 10

TM 9-1430-529-12-1

C13

APPENDIX D NOMENCLATURE AND REFERENCE DESIGNATIONS

Reference designation

TM nomenclature

Official nomenclature

5

Improved range-only radar (IROR)

Radar Set AN /MPQ-51 ( XO- 1 ) HAWK

5A1

Receiver-transmitter

5A1A1 5A1A1A2 5A1A1A3 5A1A2 5A1A3 5A1A5 5A1A5A1 5A1A5A2 5A1A5A3 5A1A5A4 5A1A5A5 5A1A6 5A1A7 5A1A8 5A1A8A1 5A1A8A2 5A1A9 5A2 5A2A1 5A2A2 5A3

Rf components assembly (duplexingmixer group) Double balanced mixer Thermal noise generator Keep-alive power supply I preamplifier Receiver-transmitter subassembly AFC amplifier Noise figure amplifier Back bias amplifier Control detector Ferrite attenuator control Local-oscillator control amplifier Local oscillator tuning drive Magnetron pulse generator Magnetron tuning drive Magnetron power supply Sequential timer Modulator-power supply Trigger pulse generator Indicator panel Antenna pedestal

Receiver-Transmitter, Radar, RT- 598 ( XO- 3 ) /MPQ-51 Duplexing-Mixer Group

5A3A1

Pressurization unit

5A4 5A5

Antenna Radar set group

5A5A1 5A5A1A1 5A5A1A2 5A5A1A3 5A5A1A4 5A5A1A5

Control-indicator panel Range indicator Sweep generator Radar set control Control-indicator subassembly Communication station

Antenna Radar Set Group OY34 (XO- 1)/MPQ51 Panel, Control- Indicator Indicator, Range Generator, Sweep Control, Radar Set Rack, Electrical Equipment Intercommunication Station

5A5A2 5A5A2A1 5A5A2A2 5A5A2A3 5A5A2A4 5A5A2A5 5A5A2A6 5A5A2A7 5A5A2A8 5A5A3 5A5A3A1-A6 5A5A3A7 5A5A3A19 5A5A3A27

Amplifier-computer Amplifier-computer test set Azimuth parallax computer Elevation parallax computer Computer control (A) Computer Control (B) Azimuth control amplifier Elevation control amplifier Gas tube starter Low-voltage power supply Voltage regulator Reference voltage regulator Balance selector and adjustment panel Voltage divider matrix (-100VDC)

Amplifier-Computer Test Set, Amplifier- Computer Computer, Radar Set Computer, Radar Set Control, Computer Control, Computer Amplifier, Electronic Control Amplifier, Electronic Control Starter, Gas Tube Power Supply Regulator, Voltage Regulator, Voltage Panel, Adjusting, Voltage Balance Resistor Assembly

Mixer Stage Subassembly Mixer Stage Subassembly Generator Power Supply Amplifier, Intermediate Frequency Receiver-Transmitter Subassembly Amplifier, Intermediate Frequency Amplifier, Intermediate Frequency Amplifier, Intermediate Frequency Control-Detector Control, Ferrite Attenuator Amplifier, Electronic Control Drive, Tuning Generator, Pulse (Magnetron) Drive, Tuning Power Supply, Magnetron Timer, Sequential Modulator- Power Supply Trigger Generator Assembly Panel, Indicator Pedestal, Antenna , AB-661 (XO- 1 )/ MPQ-51 Pressurization Unit

Part no. 10674604 (WO/E) 10399038 (W/E) 10288782 *(J)¹ 10110446 *(H)¹ 10180276 (G) ¹ 9178688 (F)¹ 9178679 9178687 10110450 *(H)¹ 9169415 9177624 9170023 9169579 9169601 9170512 9170546 10107595 9179597 9169793 10044493 9169966 10177755 10180137 10177751 10177738 10066400 11566317*(Q) ¹ 10043943 *(P)¹ 9169826 10672450

10672457 9169767 9169483 10177733 10672459 10288848 10291990 10288711 10677377 9190229 9179057 9190251 9190251 9170194 9170194 9180404 9180404 9178184 9086391 9179969 9079440 9085562 9179777

* (N)¹ * (L)¹ , * (M)¹ * (E) ¹ , * (M)¹ * ( D)¹ , *(M)¹

¹Refer to appendix E for serial number effectivity.

D-1

TM 9-1430-529-12-1

Reference designation

5A5A3A28 , A29 5A5A3A30, A31 5A5A3A32 5A5A3A33 5A5A4 5A6

C10 TM nomenclature

Voltage divider matrix ( 100VDC) (B) and (A) Voltage divider matrix (250VDC) (B) and (A) Voltage divider matrix (300VDC) Power supply subassembly Power distribution panel Motor-generator

Refer to appendix E for serial number effectivity.

D-2

Official nomenclature

Part no.

Component Board Assembly

9179776

Resistor Assembly

10110297

Connector-Resistor Assembly Power Supply Subassembly Panel, Power distribution Motor-Generator Assembly PU-451 (XO- 3)/TPQ

9086380 9086375 10111169 9182311

TM 9-1430-529-12-1

C13

APPENDIX E

SERIAL NUMBER EFFECTIVITY CODE

E-1 . General The serial number effectivity code is an alphabetical code used to indicate differences among models.

E- 2 .

Symbols Used

Alphabetical symbols are used in the code. The symbol represents the serialization of the major assembly. An asterisk preceding the symbol indicates that the serialization is not of the major

*(E ) 300001 through 340024 provided MWO 9-1425-525-50-1 has been applied and 380001 and up. * (F) 275001 through 380000 *(G) 380001 and up * (H ) 275001 through 430000 provided MWO 91430-529-50-1 has not been applied. * (J) 275001 through 430000 provided MWO 91430-529-50-1 has been applied and 430001 and up . stations 10288711 or * (K ) Communication 10677377 provided MWO 9-1425-525-

assembly, but instead of the major item in which the assembly is normally located .

50-2 has not been applied. *(L) Communications stations 10291990 provided MWO 9-1425-525-50-2 has been

E-3. Symbols Not Used applied . To avoid possible confusion with classification markings, numericals and certain units of equipment, the symbols ( A) , ( B) , ( C) , ( I ) , ( O) , ( S) and (U) are not used.

E-4. Serial Number Effectivity Code

* (M) Superseded by *(N) on exhaust-of-spares basis in IROR's 275001 through 500236 * (N) 500237 and up. *(P) Superseded by *(Q) on an exhaust- of- spares basis in IROR's 275001 through 525002 . *(Q) 560308 and up.

The following is a list of code symbols used in this manual: *(D ) 300001 through 340024 provided MWO 9-1425-525-50-1 has not been applied .

E-1

|

0

TM 9-1430-529-12-1

C16

INDEX

Paragraph

Page

5-9 T2-2 3-5 3-1 T3-14 T3-21 4-9.1 4-6

5-5 2-3 3-1 3-2 3-10 3-19 4-8.1 4-2.2

8-7 8-6 8-8 8-9

8-10 8-10 8-11 8-11

5-3 3 1-11 3.1-18 3.1-12 3.1-37 3.1-24 3.1-35 3.1-38 3.1-21 3.1-32 3.1-4 3.1-33 3.1-26 3.1-36 3.1-6 3.1-7 3.1-20 3.1-19 3.1-40 3.1-42 3.1-15 3.1-16 3.1-8 3.1-41 3.1-9 3.1-28 3.1-29 3.1-13 3.1-14 3.1-30 3.1-31 3.1-25 T2-2.1 2-2 T2-1

5-1 3.1-2 3.1-2 3.1-2 3.1-7 3.1-3 3.1-7 3.1-7 3.1-3 3.1-6 3.1-1 3.1-7 3.1-6 3.1-7 3.1-1 3.1-1 3.1-3 3.1-3 3.1-7 3.1-8 3.1-2 3.1-2 3.1-1 3.1-7 3.1-1 3.1-6 3.1-6 3.1-2 3.1-2 3.1-6 3.1-6 3.1-6 2-4.1 2-1 2-2

Α Additional units, replacement of Amplifier-computer - controls and indicators Annual preventive maintenance checks and services Annual preventive maintenance checks and services Antenna daily check Antenna weekly check Azimuth drive motor brushes, inspection of • Azimuth gear assembly backlash check . Azimuth mil ring : Description Introduction Reading Setting .

C Calorimeter, replacement of Check azimuth Check calibration Check elevation Check expand Check interlock Check sweep Check video Check dynamic position Check IF gain Check main power Check noise figure Check radiate condition Check range marks Check ready status Check reference voltage Check static position . Check zero position Check automatic frequency control ( AFC ) Check detector back bias Check high error azimuth Check high error elevation Check low-voltage regulators Check sensitivity time control ( STC ) Check time delay relay . Check AFC-1 CR1 crystal current . Check AFC-2 CR2 crystal current Check azimuth amplidyne field current Check elevation amplidyne field current Check REC- 1 CR3 crystal current Check REC-2 CR4 crystal current Check keep-alive power supply current Communication station - controls and indicators Controls and indicators (See tables for specific items) · Control-indicator panel — controls and indicators Corrective maintenance (See specific item )

Index-1

TM 9-1430-529-12-1

C16

D

Daily preventive maintenance checks and services Daily preventive maintenance checks and services Deenergizing procedure Deenergizing procedure Description and data Data .... Functional description Physical description Destruction of material to prevent enemy use

Paragraph

Page

3-5 T3-1 3-16 T3-11

3-1 3-2 3-7 3-8

1-9 1-8 1-7

1-7 1-6 1-1

1-2

1-1

4-9.2 4-7 7-6 7-5 7-1 3-14 T3-9 T3-10 1-6 3-11 T3-6

4-8.1 4-2.5 7-4 7-1 7-1 3-4 3-6 3-7 1-1 3-4 3-4

E Elevation drive motor brushes , inspection of Elevation gear assembly , backlash check . Emplacement procedures - helicopter . Emplacement procedures - prime mover Emplacement procedures - scope Energizing procedures Energizing procedures, shutdown to standby Energizing procedures, standby to radiate · Equipment serviceability criteria • External test equipment required • External test equipment required

F Figure Figures Amplifier-computer - controls and indicators . Amplifier-computer left side view Antenna pedestal Antenna and waveguide leak check Azimuth mil ring coarse adjustment Azimuth mil ring fine adjustment Azimuth mil ring/vernier scale ... Communication station - controls and indicators Cone of protection concept Control-indicator panel - controls and indicators Grounding devices assembly ... Helicopter lifting components Helicopter suspension sling - typical . Hookup of suspension sling assembly to helicopter lifting hook How to read the azimuth mil ring and vernier scale Humidity indicator Inspection of elevation drive motor brushes Local oscillator control amplifier - adjustments Local oscillator tuning drive gear assembly Locking the azimuth drive motor Low-voltage power supply controls and indicators . Low-voltage power supply - left side view Lubrication chart Modulator-power supply components Modulator-power supply - controls and indicators Motor-generator Mounting the antenna protective shipping cover Mounting the M42 instrument light Mounting the M53 instrument light Position diagram Power distribution panel - controls and indicators .

Index- 2

F2-2 F3-9 F1-4 F4-7 F8-7 F8-8 F8-5 F2-2.1 F9-1 F2-1 F6-4 F6-1 F6-2 F6-15 F8-6 F4-2.1 F4-5.1 F3-5 F3-6 F4-1 F2-3 F3-7 F4-0.1 F1-3 F2-6 F1-5 F6-6 F8-1 F8-2 F6-16 F2-4

Page 2-3 3-41 1-4 4-10 8-12 8-12 8-10 2-4.1 9-1 2-1 6-3 6-1 6-2 6-13 8-11 4-6 4-8.2 3-39 3-39 4-2.3 2-5 3-40 4-2.3 1-3 2-10 1-5 6-5 8-2 8-5 6-13 2-7

C

C16

TM 9-1430-529-12-1 F-Continued

Pressurization unit (Lear Siegler) Pressurization unit (Great Lakes) Pressurization unit connection leak check Radar set group components Replacement of the radar set group vent interlock switches Receiver-transmitter adjustments Receiver-transmitter components Receiver-transmitter controls and indicators Receiver-transmitter rf components leak check Receiver-transmitter - waveguide test hookup Reference voltage regulator .. Removal of the lower brushes Removal of the upper brushes Replacement of the interlock switch Replacement of the magnetron tube Replacement of the pulse generator and calorimeter Replacement of the motor-generator brushes Replacement of the range indicator CRT ROR-alinement telescope mounted ROR antenna pedestal ROR - curb side ROR - major assemblies ROR - meter colored areas ROR miscellaneous controls and indicators ROR - pedestal flange ROR - pedestal support plate ROR road side ROR - suspension sling assembly secured for helicopter pickup front view ROR - suspension sling assembly secured for helicopter pickup — rear view ROR - tilt-lock pin and tilt stop .. Sequence of ROR alinement operations Suspension sling assembly - typical chain leg hookup . Trailer M514 - preparation for travel and emplacement Typical radar lightning protection layout . . Waveguide pressure gage connections leak check

Forms, records, and reports . Functional description

Figure

Page

F4-2 F4-3 F4-10 F1-6 F5-4 F3-3 F1-2 F2-5 F4-8 F3-4 F3-8 F4-5 F4-4 F5-2 F5-1.1 F5-1 F4-6 F5-3 F8-4 F8-3 F3-2 F1-1 F3-10 F2-7 F6-4 F6-17 F3-1

4-4 4-6.2 4-14 1-6 5-7 3-38 1-3 2-9 4-12 3-38 3-40 4-8 4-7 5-4 5-2.1 5-2 4-9 5-6 8-9 8-9 3-37 1-2 3-41 2-11 6-3 6-14 3-37

F6-13

6-11

F6-14 F6-20 F8-0.1 F6-3 F7-1 F9-2 F4-9

6-12 6-14 8-2 6-2 7-2 9-3 4-13

Paragraph

Page

1-5 1-8

1-1 1-6

G General lightning protection emplacement instructions General service procedures

9-2 4-2.2

9-1 4-1

1-5.2

1-1

3-17.1 3-17.2

3-36.1 3-36.1 4-6.02

H

Hand receipt HAWK battery silent mode system redeployment checks: General . Preparation Humidity indicator desiccant, replacement of

4-8.2

Index-3

1

C16

TM 9-1430-529-12-1

L

Paragraph Lightning protection fabrication for ROR Lightning protection - scope ....... — controls and indicators Low-voltage power supply Lubrication General lubrication instructions Lubrication chart .

Page

9-3 9-1 T2-3

9-2 9-1 2-6

4-4 4-3

4-2.2 4-2.2

5-2 T3-12 T3-19 4-5 8-2 T2-6 5-4 3-5 TB3-1 4-10

5-1 3-11 3-16 4-2.2 8-1 2-10 5-3 3-1 3-2 4-8.1

3-17 3-16 3-14 3-11 3-15 3-13 3-12

3-7 3-7 3-4.1 3-4 3-7 3-4.1 3-4.1

2-8 2-11 2-7 2-9 2-10 2-6

2-12 2-12 2-12 2-12 2-12 2-12

2-4 1-4 8-3 8-1

2-12 1-1 8-1 8-1 .

T3-15 T3-22 4-9 4-9 T3-8

3-11 3-21 4-6.1 4-6.1 3-6

M Magnetron pulse generator , replacement of Main power daily check Main power weekly check Maintenance services general Methods of orienting and alining the ROR Modulator- power supply - controls and indicators . . Modulator-power supply interlock switch , replacement of Monthly preventive maintenance checks and services Monthly preventive maintenance checks and services Motor generator brushes — inspection and replacement of

Operational checks Check procedures (See specific tables ) Deenergizing procedure Energizing procedures External test equipment required Normal operation .. Position of controls prior to application of power Procedures prior to application of power Operation under unusual conditions Barometric pressure Fording operations Extremely cold or hot weather operation Operation in high humidity . . . Operation in proximity to salt water Wind Operation under usual conditions Normal operation Organizational maintenance allocation . . Orientation and alinement during blackout conditions Orienting and alining — purpose

P Parallax circuits daily check . Parallax circuits weekly check Pedestal brush , replacement Pedestal brush, slipring cleaning Position of controls prior to application of power

Index-4

C16

TM 9-1430-529-12-1 P -Continued

Power distribution panel - controls and indicators . Preparation for travel procedures - helicopter Preparation for travel procedures — prime mover Preparation for travel procedures - scope Pressurized microwave system components , leak detection check Pressurization unit 10043943 dehydrator cartridge, dessicant, replacement of .. Pressurization unit 11566371 dehydrator cartridge, replacement of Preventive maintenance checks and services Annual preventive maintenance checks and services • Annual preventive maintenance checks and services Daily preventive maintenance checks and services . Daily preventive maintenance checks and services General procedures for all services and inspections . Intervals Monthly preventive maintenance checks and services Monthly preventive maintenance checks and services Responsibility . . . Semiannual preventive maintenance checks and services Semiannual preventive maintenance checks and services Weekly preventive maintenance checks and services · Weekly preventive maintenance checks and services Procedures prior to application of power Procedures prior to application of power

Paragraph

Page

T2-4 6-9 6-8 6-1 4-11 4-8 4-8.1

2-8 6-9 6-4 6-1 4-8.3 4-3 4-5

3-5 T3-1 3-5 T3-1 3-4 3-3 3-5 T3-1 3-2 3-5 T3-1 3-5 T3-1 3-12 T3-7

3-1 3-2 3-1 3-2 3-1 3-1 3-1 3-2 3-1 3-1 3-2 3-1 3-2 3-4.1 3-5

R Radar set group intake-exhaust vent interlock switches, replacement of Range indicator daily check Range indicator weekly check Range indicator CRT, replacement of Receiver weekly check Receiver-transmitter - controls and indicators Repair parts, special tools, and equipment Reporting equipment improvement recommendations (EIR's) • ROR - miscellaneous controls and indicators

5-6 T3-17 T3-25 5-5 T3-24 T2-5 4-2 1-5.1 T2-7

5-5 3-14 3-29 5-3 3-27 2-9 4-1 1-1 2-11

3-5 T3-1 F8-0.1 4-2.3 4-2.4 T3-13 T3-20 6-10 8-5

3-1 3-2 8-2 4-2.1 4-2.1 3-10 3-16 6-11 8-5

S

Semiannual preventive maintenance checks and services Semiannual preventive maintenance checks and services Sequence of ROR alinement operations Service upon receipt — general . . Service upon receipt and emplacement of the improved range -only radar (IROR) . Standby and low-voltage power supplies daily checks Standby and low-voltage power supplies weekly check Stowing the ROR antenna Synchro control system .

Index-5

C16

TM 9-1430-529-12-1 T

Tables AFC alinement Amplifier-computer - controls and indicators . Annual preventive maintenance checks and services Antenna daily check Antenna weekly check Communication station - controls and indicators Control-indicator panel - controls and indicators Daily preventive maintenance checks and services Description of helicopter lifting components Deenergizing procedure . Energizing procedure — shutdown to standby - standby to radiate Energizing procedure External test equipment required . . HAWK battery silent mode system redeployment checks Low-voltage power supply - controls and indicators Magnetron frequency check Main power daily check Main power weekly check Materials requested controls and indicators Modulator -power supply Modification work orders .... Monthly preventive maintenance checks and services Orientation and alinement procedures Parallax circuits daily check Parallax circuits weekly check Position of controls prior to application of power Power distribution panel controls and indicators Procedures prior to application of power Radar performance daily check Radar performance weekly check Range indicator daily check . Range indicator weekly check Receiver weekly check Receiver-transmitter ---- controls and indicators ROR miscellaneous controls and indicators Semiannual preventive maintenance checks and services Standby and low-voltage power supplies daily check Standby and low-voltage power supplies weekly check • Transformer limit adjustment procedures Transmitter and modulator-power supply daily check Transmitter and modulator-power supply weekly check Weekly preventive maintenance checks and services

Transportation by air Transportation by truck Travel preparation , emplacement , alinement , and lightning protection

Table

Page

T5-2 T2-2 T3-1 T3-14 T3-21 T2-2.1 T2-1 T3-1 T6-1 T3-11 T3-9 T3-10 T3-6 T3-26 T2-3 T5-1 T3-12 T3-19 T9-1 T2-6 T1-1 T3-1 T8-1 T3-15 T3-22 T3-8 T2-4 T3-7 T3-18 T3-26 T3-17 T3-25 T3-24 T2-5 T2-7 T3-1 T3-13 T3-20 T5-3 T3-16 T3-23 T3-1

5-10 2-3 3-2 3-10 3-19 2-4.1 2-2 3-1 6-3 3-8 3-6 3-6 3-4 3-36.1 2-6 5-8 3-9 3-16 9-2 2-10 1-7 3-2 8-6 3-11 3-21 3-5 2-8 3-5 3-4 3-31 3-14 3-29 3-27 2-9 2-11 3-2 3-9 3-16 5-14 3-13 3-24 3-2

Paragraph 6-5 6-4 1-3

Page 6-1 6-1 1-1

V 8-7 8-8

Vernier scale , description Vernier scale, reading .............

8-10 8-11

W Weekly preventive maintenance checks and services Weekly preventive maintenance checks and services

Index-6

3-5 T3-1

3-1 3-2

TM 9-1430-529-12-1

C16

By Order of the Secretary of the Army :

E. C. MEYER General, United States Army Chief ofStaff

Official: ROBERT M. JOYCE Major General, United States Army The Adjutant General

Distribution : To be distributed in accordance with DA Form 12-32 , Maintenance requirements for HAWK Missile System .

U.S. GOVERNMENT PRINTING OFFICE :

1984-746-036 : 3474

Section II ,

Organizational

1