PS Magazine Issue 152 1965 Series [152 ed.]

Citation preview

READINESS

If you ever have to turn in a fire alarm, you don't want the firemen INSTANT to have to gas up, check the oil, fill the radiator, load up their hoses and (Takes ladders and then hot-foot it out of the firehouse. You can bet your burnt britches you don't. You expect them to fall into their boots, hit the starter and be roaring on the way while they're still putting on wet-gear. That's the way it is with you and your outfit. Uncle Sam may have to ':;;I..... . . .~b!Si turn in the "alarm" any time. He expects you to be ready. He expects your equipment to be ready. Instant readiness is what he's got to have-no "Hold it while we get everything fixed up." You've got to be able to go at any time with what you've got. And in this jet age, that could mean you' ll be shooting, scooting and communicating in some spot 10,000 miles away tomorrow morning. You can keep your equi pment ready to go with the right kind of ol)eration, care and maintenance. Keep it adjusted right. Never bang it up. When something goes wrong that you can't fix, get the word to your unit repairman. Keep your gear's records up-to-the-minute so you, your sergeant and your CO can see its condition in black-and-white. Also, keep your equipment's tech Illanual and Equipment Serviceability Criteria (ESC) TM handy; know and use them. So, to go with what you've got, be ready. Don't wait to get ready; it might prove fatal

Hard Work)

If you ever have to turn in a fire alarm, you don't want the firemen to have to gas up, check the oil, fill the radiator, load up their hoses and ladders and then hot-foot it out of the firehouse. You can bet your burnt britches you don't. You expect them to fall into their boots, hit the starter and b e roaring on the way while they're still putting on wet-gear. That's the way it is with you and

INSTANT

READINESS

(Takes Hard Work)

your outfit. Uncle Sam may have to ~;;l""'''''~!,?i;~ turn in the Halarm" any time. He expects you to b e ready. He expects your equipment to be ready. Instant readiness is what h e's got to have-no "Hold it while we gel everything fixed up." You've g ot to be able to go at any time with what you' ve got. And in this jet age, that could mean you'll be shooting, scooting and communicating in som e spot 10,000 miles away tomorrow morning. You can keep your equipment ready to go with the right kind of opera tion, care aud maintenance. Keep it adjusted right. Never bang it up . When something goes wrong that you can ' t fix, get the word to your unit repairman. Keep your gear's records up-toodle-minute so you, your sergeant and your CO can see its condition in black-aud-white. Also, keep your equipment's tech manual and Equipment Serviceability Criteria (ESC) TM handy; know and use them. So, to go with what you' ve got, be ready. Don ' t wait to get ready; it might prove fatal.

tlIE PR£YOT1Yt MAItOtNANCf. M01HHlY 15$"1 No . 1 5 ~ 196 5 Se rle.

'I

IN TH I S ISSUE FIREPOWER Hike·Hercules

2-11

2..t

Hawk

GROUND MOBILITY TRACKE D12·14 n MI13GENERA L 15 Stora~ />00/) 25 Exercising Dope 21

MI!4 M60

H)· 11

12-27

WHEELE D . G142'5eties 1&-17 _ . Air Conneetions 18 _ ~gi~ITr'iler :: . ~ j Docl:sonTorehSet 2~21 MSI 21 G741-set!es 21021

",. MOBILITY

37·49

[JI$JlerunlOij 42-044 SlnrkPlugt 45 M24 .Ma'k 45 "OP"CMU 41-43 av·l 4\1

COMMUNICATIONS

50·55

SB-22( )jPl 50-51 AT-211 53 TtstSet 52 S-l41SlIelter 54-55 Clrtuil8oar4 52 Angry.19 Power table: 55 SB-a&l PSwiblllboard 55

GENERAL AND SUPPLY

SpR~~jy.t~;s. r:1i1r~: ~r:~r" ttu of fUfUIs fer prhttlllr 0' this ,",'tUeatiaillas 1M." Jpprove lf lIy Htadfluartm, De,IttI'IIIId tf tile Army, It fe' rlltry 1965.

OlSTRIBUTIOM; In aceordanct with requirements submitted on DA Form 12-4. r.s::-,,-:=JI:-CoIJ 7._"" M":' ',uI '-;l,

PS M......., tJ)Mi~#U)4t, ~.,. ~O I:Z 1

GROUND MOBILITY TRACKED MI14 12·14 MSO IS Mill

11

GENERAL

~:~~~ ~

12·27

WHEELED. G14l·urifs 1"17 . . AIr ConntctJoos 18 . MllilAITtailer

11

M35A1 11 :,k$OllTarCItSet 2G-~ G741'$tr(es 21-27

UK-ID 37 (»1-13 ,.39 AifttoltSaftb 39 OXygenTanks 48 OH·23 041

COMMUNICATIONS S8-2Zl lJPl 50-51 AT·2JI

5().55 53

Test Set 52 S-141S/1ellllr 54--55 CircurlSoirtl 52 Angry.19P4werCable " SIMI&jPSwitcl\bGard 55

GENERAL AND SUPPlY SptcbI'nt\lrt=tlaridlil!i:FuelDrllll\S 5H4 Supply

3,'.lD,lJ,11.1I,1I,~21,

23. 24,a, 21, 49,55

Ibt tf tum fer pflntiq of this pulllic.

=.:m":r~= I~r:=:ar;.~

DtSTRtBUTlOII: hi accardlac. with r.. qulremeats sulHnitted OR DA r..,. 12-4. ~~~'-:1

J

Funny the way things will go along real smooth-like for a long spell . .. and then whammo- troubles. Take the hydraulic pumping unit on your Nike-Hercules launcher as a frinstance. It was a rare day when you heard a guy complain about the two filter elements in the pumping unit collapsing. Lately, tho, more people are talking about having collapsing filter element problems. What gives? For one thing, dirty hydraulic fluid. Stuff that doesn't belong in the fluid clogs the pores of the elements in the missile hydraulic pressure fluid and the launcher pressure fluid filters. And if the fluid can't get through the elements, the things collapse. The answer to this kind of dirty fl uid is to drain it at least every three months - the way it says in LO 9-1400-250- 20. And don't forget that note on page 13- " The hydraulic filter elements must be replaced during all fluid ~ changes."

Funny the way things will go along real smooth-like for a long spell . . . and then whammo-troubles. Take the hydcaulic pumping unit on your Nike-Hercules launcher as a frinstance. It was a care day when you heard a guy complain about the two filter elements in the pumping unit collapsing. Lately, tho, more people are talking about having collapsing filter element problems. What gives? For one thing, dirty hydraulic 6uid. Stuff that doesn't belong in the fluid dogs the pores of the elements in the missile hydraulic pressure fluid and the launcher pressure fluid filters. And if the 6uid can't get through the elements, the things collapse. The answer to this kind of dirty 6uid is to drain it at least every three months - the way it says in La 9-1400-250-20. And don't forget that note on page 13 - "The hydraulic filter elements must be replaced during all 6uid changes."

C===::::;-;===::::J

Another deal that'll give you filter element woes is the elements themselves. To look at 'em, you'd swear the missile element's the same as the one for the launcher. Not so. The missile element has pores that measure two microns and the launcher element has 10 micron pores. The smaller holes let only three gallons of 6uid pass through the missile element every minute ... while 10 GPM get through the bigger-holed launcher element. ADd that's where the rub comes in. If you happen to mix up the elements, the launcher hydraulic fluid will be moving under tOO much pressure to get through the two micron-sized missile element holes. Welcome to the Collapsed Element Club. The switch would lead to different troubles for your missiles. The launcher element, with its bigger pores, would let stuff get through to the birds - junk ~• • that just doesn't belong in them. ~ In other words, it's a good idea to be extra careful when you install those

elements. The boxes the elements come in might not contain what they say on the outside. So double-check by looking at the manufacturers' numbers stamped on the elements. Bendix PiN 033180 or Purolator PiN 54873-1 is for the missile filter ... and Bendix PiN 033200 or Purolator P IN 54~73-3 goes in the launcher filter.

LEAYES YOU s(REKHLESS While some guys are having fits about filter elements, others are talking about the screeching that grates their ears when their launcher is elevated. It's a good bet that the noise comes from a mixture of air and hydraulic fluid going through the priority valve. And seeing's how the air doesn't belong there, you can get rid of the screeching by bleeding off the air_ And bleed the system like it's never been bled before. Some launchers never develop a loud racket because of air in their hydraulic system. Others do _ . . and it means getting rid of the air whenever the noise starts.

t

I

Another deal that'll give you filter element woes is the elements themselves. To look at 'em, you'd swear the missile element's the same as the one for the launcher. Not so. The missile element has pores that measure two microns and the launcher element has 10 micron pores. The smaller holes let only three gallons of fluid pass through the missile element every minute ... while 10 GPM get through the bigger-holed launcher element. And that's where the rub comes in. If you happen to mix up the elements, the launcher hydraulic fluid will be moving under too much pressure to get through the two micron-sized missile element holes. Welcome to the Collapsed Element Club. The switch would lead to different troubles for your missiles. The launcher element. with its bigger pores, would let stuff get through to the birds- junk that just doesn't belong in them. In other words, it's a good idea to be extra careful when you install those

elements. The boxes the elements come in might not contain what they ·say on the outside. So double-check by looking at the manufacturers' numbers stamped on the elements. Bendix pIN 033180 or Purolator pIN 54873-1 is for the missile filter . .. and Bendix pIN 033200 or Purolator P IN 54~73·3 goes in the launcher filter.

L(AVES YOU s(REKHLESS While some guys are having fits about filter elements. others are talking about the screeching that grates their ears when their launcher is elevated. It's a good bet that the noise comes from a mixture of air and hydraulic fluid going through the priority valve. And seeing's how the air doesn't belong there, you can get rid of the screeching by bleeding off the air. And bleed the system like it's never been bled before. Some launchers never develop a loud racket because of air in their hydraulic system. Others do . .. and it means getting rid of the air whenever the noise Starts.

Dear Editor, We've come up with the answer to rust, water and what-hove-you out of the grease fiftlng wells on the main trunnion of our Hike-Hercules launcher.

(Ed Note - That's ()'lle way to take care 0/ the situation. Bill grease in the wells will eat away at the rubber. So get rid 0/ un-needed grease . .. and replace the caps when they start going to pot. 0/ course, some 0IU{rJS plug the wells with corks . .. fill 'em luith grease . .. or cover 'em with tape.)

Dear Hall-Mast, True or lalse? The tracks on our N'Ic...Hercules launching-handling rail get painted with OD paint. $Fe w. R. Dear Editor, We've come up with the answer to keeping rust, water and what.have.you out 01 the grease littlng wells on the moln trunnion 01 our Nlke.Hercu'es

Deac Secgeant W. R. ,

False. TB 9·337 (Mac 61) says on page 10 to use a luminum lacquec on "aluminum clad steel." And that's JUSt what the tracks were when they left the assembly line wrapped in aluminum.

HaI/-J!ffJ4t

FILL THE CUP Your troubles are over ... oc they will be once your support unit gets around to your Nike·Hercules or Improved Herc site and applies MWO 9-1440-252-

30/23 (26 May 64). That's the MWO that puts oil cups on the power and equilibrator cylinders for your launcher. 'Course, the cylinders already have holes in 'em for shooting in OHA on the wipers once a month the way it says in LO 9·1400-250-20. Trouble is, rain has gotten into the holes and sure has fouled up cylinder rods wi th rust and pitting -two bad deals that really can chew up the wipers. r;::::==:::::::;;;~~

(Ed Note - "fhat's OtU way to take Ca1'e of the situation. B1d grease in will eat away at the rubber. So get rid of un·needed grease . .. and rep/4(;e caps when they $/.art going to pot. Of course, some outfrJs plug the wells with corks . .. fill 'em with gre4Sc .. , or cover 'em with tape.)

Dear Half.Mast, True or false? The tracks on our Hlke·Hercules launching-handling roll get painted with OD paint. SfC W . R.

Dear Sergeant W. R., False. TB 9-337 (Mar 61) says on page 10 to use a luminum lacquer on "aluminum clad steel." And that's juSt what the tracks were when they left the assembly line wrapped in aluminum.

HaI/-JI!f14t

FILL THE CUP Your troubles are over ... or they will be once your support unit gets around to your Nike-Hercules or Improved Herc site and applies MWO 9-1440-252-

30/23 (26 May 64). That's the MWO that puts oil cups on the power and equilibrator cylinders for your launcher. 'Course, the cylinders already have holes in 'em for shooting in OHA on the wipers once a month the way it says in La 9-1400-250-20. Trouble is, rain has gotten into the holes and sure has fouled up cylinder rods with rust and pitting -two bad deals that really can chew up the wipers. rr==~;::::::"""

B

So maybe you've given up teying to lube the strut assembly trunnion pins on your Nikc-Hercules launcher because you can't get at them. You know ... the set screws won't loosen so you forget about squirting penetrating oil into the pins monthly, the way the note says on page 9 of LO 9-1400250-20. Don't give up so easily-not when all it takes (most of the doing to get the set screws in shape for removing.

No matter who loosens the set screws, head off future trouble by slippin' the threads some penetrating oil while you're working on the trunnion pins. 6

NO STRINGS ATTACHED

So maybe you've given up trying to lube the strut assembly trunnion pins on your Nike-Hercules launcher because you can't get at them. You know . . . the set screws won't loosen so you forget about squirting pene-

trating oil into the pins monthly, the way the note says on page 9 of LO 9·1400250-20_ Don't give up so easily-not when all it takes (most of the doing to get the set screws in shape for removing.

Tie back the safety devices - that's what you're suppos~d to do when you remove the rack assemblies and then raise and lower your Nike-Hercules launcher. As you know. if you don't tie the safety devices Out of the way while you cycle the launcher, they'll get clobbered by the erecting beam cylinders. And the devices themselves slam into the air bleed valves, making the valves look like they had come face· to-face with a sledgehammer on the move. The trouble with winding string around the safety devices to keep them out of the way is that it's a temporary deal. What you need is something that's built to last ... and here it is - a stop that takes the place of the flat washer on the safety device assembly and is

lIT 111

5(IlWS WIlH PBIfIIAIING OL y.. Iot ..................._Oryou .... 1ry_oIlhot.........,;allilpid .... ..... lor "*itt ... "frost" out 01 frOllll ........... """'anoI .......

need help from your support unit. No matter who loosens the set screws, head off future trouble by slippin' the threads some penetrating oil while you're working on the trunnion pins.

Something else about those safety devices. LO 9·1400-250-20 says on page 9 to hit the rollers and bearings with PL monthly. Actually, it's only the bearings for the rack arms and the sleeve bearings in the rolIers that get tubed. The rollers want to be coated with green paint.

I

NO STRINGS ATTACHED Tie back the safety devices-that's what you're supposad to do when you remove the rack assemblies and then raise and lower your Nike-Hercules launcher. As you know, if you don't tie the safety devices out of the way while you cycle the launcher, they'll get clobbered by the erecting beam cylinders. And the devices themselves slam into the air bleed valves, making the valves look like they had come face-to-face with a sledgehammer on the move. The trouble with winding string around the safety devices to keep them out of the way is that it's a temporary deal. What you need is something that's built to last ... and here it is - a stop that takes the place of the flat washer

on the safety device assembly and is left there.

LUBE THEM - BUT Something else about chose safety devices. LO 9-1400-250-20 says on page 9 to hit the rollers and bearings with PL monthly. Actually, it's only the bearings for the rack arms and the sleeve bearings in the rollers thac get lubed. The rollers want (0 be coated with green paint.

I

Dear Editor, The Hike-Hercules botteries we support were having troubles in spades with the male contacts on the J2 plug of the missile' s transponder control group. You know . . . the contacts would ge, bent, making it darn near impossible to hook up the cable assembly (PIN 8521613) between the

J2

and

on

e'ec- r'===;::'i;;;;iiiiiiiiiiiirl

plug 'the J r plug the trical fest set (PIN 9034602). . We came up with a pin straightener that has kept more ,hpn one connedor from going fa the iunk heap. All that's needed are some !4-in drill rod, about 4-i" 'ong, and a salvaged rubber or wooden hand'e. Consolidated Fld Maint Shops Ft Devens, Moss

ASK FOR

••~

t:==:J.'-;~

LL THREE

It's an assembly right enough ... but when you r equisition (he ventilatOr assembly, it doesn't mean you get every· ching you need for connecting it to [he BA·485 Iv battery in your Nike· Hercules missile. You've gotta order coupling tube nut, FSN 4730.887-9061, and compres· sion sleeve, FSN 473 0·779·6022. separately if you want all thac's needed to do the job. Like the assembly, the nut and sleeve are listed jn TM 9-1410-25012P/l/l (Feb 64).

•

TO GET THE JOB OONE RIGHT OROER THESE ALSO,

NUT FSN 4730·887·9061

SLEEVE FSN 4730·779·6022

MOM S

Dear Editor, The Hike-Hercules baHeries we support were having troubles in spades with the ma'e contacts on the J2 plug of the missile's transponder control group. You know . . . the contad's would get bent, making it darn near impossible to hook up the cob'e assembly (PIN 8521613) between the J2 plug and 'the J r plug on the electrical test set (PIN 9034602). ' We came up with a pin straightener that has kept more than one connector from going to the junk heap. All that's needed are some ~ -in drill rod, about 4-;n 'ong, and a 50'vaged rubber or wooden handle. Consolidated Fld Main' Shops Ft Devens, Moss

I ,...':::===:;::;;i;;;iiiiiiiiii-=l

-

TO STAKE

••~

t:==:1.'-;~

ASK FOR ALL THREE It's an assembly right enough ... but when you requisition the ventilator assembly, it doesn't mean you get everything you need for connecting it to the BA-485/u banery in your NikeHercules missile. You've gotta order coupling tube nut, FSN 4730-887-9061 , and compression sleeve, FSN 4730-779-6022. separately if you want all that's needed to do the job. Like the assembly, the nut and sleeve are listed in TM 9-1410-25012P/I/I (Feb 64).

GROUND CABLE

TO GH THE JOB DONE _

RIGHT ORDER THES.

NUT FSN 4730-887-9061

SLEEVE FSN 4730-779-6022

GROUNDING ROO KIT

Shudder! Gasp! No matter how big a hurry you're in to get your Sergeant's launching station emplaced, don't make this mistake: Don't get caught dead using the static grounding cable instead of the grounding cable and stake. A mistake like this just might carry the death penalty. And no kidding. The static line's OK, maybe, for draining off static electricity when you're opening a rocket mOtor container. Then you simply battery-dip the cable to the ball study on the aft end of the rocket motor container.

But it sure won't suck jolting juice from a charged-up launching station the way the grounding cable and stake will. . if you rig 'em up right. Which means doing what it says about emplacing ground rods on page 114 of TM 9-1440-301-12 (Mar 65). The ground rods mentioned in (he TM replace the ones you've been using and are in a kit that comes with M\X!O 91440-301-30/25 (19 lan 65).

Mtt

XM504 LAUNCHING STATION,

I -

GROUND (ABLE

TO STAKE

GROUNDING ROD KIT Shudder! Gasp! No matter how big a hurry you're in to get youe Sergeant's launching station emplaced , don't make this mistake: Don't get caught dead using the static grounding cable instead of the grounding cable and stake. A mistake like this JUSt might carry the death penalty. And no kidding. The static line's OK, maybe, for draining off static electricity when you're opening a rocket motOr concainer. Then you simply battery-clip the cable to the ball study on the aft end of the rocket motor container.

Bur it sure won't suck jolting juice from a charged-up launching station the way the grounding cable and stake will. . if you rig 'em up right. Which means doing what it says about emplacing ground rods on page 114 of TM 9-1440-301-12 (Ma, 65). The ground rods mentioned in the TM replace the ones you've been using and are in a kit that comes with ~fW'O 91440-301-30/25 (19 Jan 65). 9

When the headset (TDH-39) for the azimuth-speed indicator console in the Hawk's battery concrol center needs replacing, here's what you're to ask for: Headset, microphone, H-144Alv, battery powered, FSN

5965-682-2769_ You'll find it listed on page three, TM 91430-501-12P/l (Nov 63)_ This is the best headset in the supply system for the ASI console.

IDLE TALK You confused about just how YOll-'re supposed to check the level on your Hawk loader-transporter?

=-., ..-=:-::-:==

Tossing a , -_ _ _-,,_ _

~hance of being right, but you'll be right 100 percent of the time if you have the

If you haven't had any trouble yet, maybe it's because you've been lucky. But you could be next on the list ... so beat those snake eyes to the punch by taking a gander at the rotary pump in your Hawk AN IMPQ-39 radar. What you want to look for, and hope you don't find, is a plug on the chamber between the pump and pump motor. That thing is strictly a shipping plug and wants to be removed when the pump is installed in the radar. If any coolanc leaks and gets into the pump motor without any way to get out (which is what happens with the plug in) ... ps-s-s-St ~;,,~Wcornes the sound of a motor burning out. 10

When the headset (TDH-39) for the azimuth-speed indicator console in the Hawk's battery control center needs replacing, here's what you're to ask for: Headset, microphone, H-144A/u, battery powered, FSN 5965-682-2769. You'll find it listed on page three, TM 91430-501-12P/l (Nov 63). This is the best headset in the supply system for the ASI console.

IDLE TALK You confused about just how yoq're supposed to check the transmission oil level on your Hawk loader-transporter? Tossing a ,_::--_-,,_ _ _ _.,..-_ _ _ _--, four-bit piece chance of being right, but you'll be right 100 percent of the time if you have the

If you haven't had any trouble yet, maybe it's because you've been lucky. But you could be next on the list ... so beat those snake eyes to the punch by taking a gander at the rotary pump in your Hawk AN/MPQ-39 radar. What you want to look for, and hope you don't find, is a plug on the chamber between the pump and pump motor. That thing is strictly a shipping plug and wants to be removed when the pump is ins.t alled in the radar. If any coolant leaks and gets into tbe pump motor without any way to get out (which is what happens with the plug in) .. . ps-s-s-st comes the sound of a motor burning out. 10

ROUND GROUND If there's one thing that'll turn a Hawk crewman's face red, it's to pull a missile from its container without the bird stopping along the way-like it's supposed to. Before he can say "terra firma," the missile is on the ground, with a few dents it didn't have before it left the container. And the components are left feeling like a pair of ivories that have been bouncing against the wall during an all night session. If the stops that're made for bringing the missile to a halt when it's partway out of the can are missing from the container, you can pull out the round with some steady tugging. JUSt because some guy didn't install the stops is no real good excuse for the missile to wind up on the ground. Instead of rushing things, listen and feel for those two drops the missile takes as it comes out of the container. Those slight drops are built into the container as part of your decanning procedures.

RUBBING IT IN Who'd a thought it would happen?

rCiOOLOOliiiE'~'::"""=,,,.,.._'TI

The stable local oscillator in your Hawk AN/MPQ-35 radar gets put on rubber shock mounts. And the oscillator vibrates the way it should. But when the pulse acq is fired up and the oscillator is vibrating away, it rubs against the coolant line. And

~;;~w~i=u;.;::;ii1ii: all that rubbing puts a hole in the oscillator fi

cover. If you're having this kind of trouble, ask your support people to move the coolant line support damp up two inches. This'll put the line away from the oscillator with room to spare.

"

I

ROUND GROUND If there's one thing that'll turn a Hawk crewman's face red, it's to pull a missile from its container without the bird stopping along the way-like it's supposed to. Before he can say "terra firma," the missile is on the ground, with a few dents it didn't have before it left the container. And the components are left feeling like a pair of ivories that have been bouncing against the wall during an all night session. If the Stops that're made for bringing the missile to a halt when it's partway out of the can are missing from the container, you can pull out the round with some steady tugging. Just because some guy didn't install the stops is no real good excuse for the missile to wind up on the ground. Instead of rushing things, listen and feel for those two drops the missile takes as it comes out of the container. Those slight drops are built into the container as part of your decanning procedures.

RUBBING IT IN Who'd a thought it would happen? The stable local oscillator in your Hawk AN/MPQ~35 radar gets put on rubber shock mounts. And the oscillator vibrates

I

THE RIGHT GOES TO THE LEfT AND . . . That's kerrect! Wich this bit of guidance you can almost ""'"'"'-'. double the life of the track center guides On your M114· series Recon carriers. - __ Here's the trick - Keep your eye peeled On the outer row of center guides for signs of unusual wear. Seems that under some condi. tions - 'specially mud - the outer row will wear faster than the inner row of gujdes. Not only should you eye the guides for wear. but once in a while take the time to finger feel 'em for size. If you find the outer guides are almost worn thru - make with the switch.

Take the right.hand track and switch it to the left side .. and the left to the right. This . puts the outer guides on the ~ _ inner sides of both tracks. ~-.. -;::::--Don't wait rill the guides are ~~ too worn down before you make the switch. -::--:?! ..~ This small PM action is the ticket for many .,.:' ~ . . . more miles on the guides. ---- ~ If your carriers are operating'where it's dry. ~ you may not run into this uneven wear.

Z--

12

~~~ _~ ~

2 .

FOR MORE (ENTER GUIDE LIFE . ••

THE RIGHT GOES TO THE LEFT AND • ••

Take the right-hand track and switch it to the left side. and the left to the right. This

rnu~:r t~~e~~t;~~~i~r~c:s~

the

-

~

~-

-

_ - - --

~

RECTIfIED RECTIfIER

That's kerrect! With this bit of guidance you can almost double the life of the track center guides 00 your ","",","- .~ M114- series Recon carriers. - _ _ Here's the trick- Keep your eye peeled on the outer row of center guides for signs of unusual wear . Seems that under some conditions - 'specially mud - the outer row will wear faster than the inner row of guides. Not only should you eye the guides for wear, but once in a while take the time to finger feel' em for size. If you find the outer guides are almost worn thru - make with the switch.

.

___

-,~~

-- -

~~.,-?

Don't wait till the guides arc ~z...,. too worn down before you make the switch. -:-- ~ • This small PM action is the ticket for many ..: ~+ more miles on the guides. ____ ~ If your carriers are operating·where it's dry, you may not run into this uneven wear. 12

4iii' -Z

Dear Ha"~Mast, We're still learning new things about our MJ 14 C/R carrier. Right now we' d like to know the purpose 01 the rectifier we see on page 136 in TM 9~ 2320-224-20 (Jon 65).

What can you clo lor us, Sarge? CWO G. W . H.

.. THE RECTIFIER PICKS OUT .

The rectifier picks Ou t the correct warning light when trouble hits. It works like this: When trouble makes the master warning light come on, you immediately look at your indicator paoel to see which one of the four warning lights is beaming. If the rectifier wasn't in the electrical system they'd all light up and you'd be left in the dark - it pin-points the problem area. If you ever need one of these recti· fiers, just ask for Semi-Conductor assy, warning light 10913771 FSN 2590973-1 t 78. 1t's on page 67 in the MLI4's newcst supply manual, TM 9-2320-224-25P. 13

RECTIfIED RECTIfIER Dear Half-Mast, We're still learning new things about our MJ 14 C/R carrier. Right now we'd like to know the purpose the rectifier we see on page 136 in TM 9-

0'

2320-224-20 (Jon 65)_

What can you do for us, Sarge?

CWO G_ W _ H_

. . . THE RECTIFIER PICKS OUT.

The rectifier picks out the correct warning light w hen trouble hits . It works like this: When trouble makes the master warning light come on, you immediately look at your indicator panel to see which one of the four warn ing lig hts is beaming . If the rectifier wasn't in the electrical system they'd all light up and you'd be left in the dark - it pin-points the problem area. If you ever need one of these rectifiers, just ask for Semi-Conductor assy, warn ing light 10913771 FSN 2590973-ll78. It's on page 67 in the M L14's newest supply manual, TM 9-2320-224-25P. 13

MJl4

TENSIONER TROUBLES

Dear Editor, The belt tensioners on M J '4.series vehicles fend to work loose after about 2,000 miles of operation which makes the engine run hot. You can improve the belt 'ensioner: by doing this:

4. Now ....mbl. the elms, the adjusting nut and the bob tensioner again and put the retoining pin and the ,on., pin bode. S. Adjust the be~ tension. When the adjust· .ing nut is pa