The Preventive Maintenance Monthly, Issue 554

8/6/2019 The Preventive Maintenance Monthly, Issue 554

1/44

ISSUE 554 JANUARY 1999

PS, The Preventive Maintenance Monthly (ISSN 0475-2953) is published monthly by the Department of the Army, Redstone Arsenal,AL 35898-7466. Periodical Postage is paid at the Huntsville, AL post office and at additional mailing offices.

Postmaster: Send address changes to PS, The Preventive Maintenance Monthly, LOGSA, Redstone Arsenal, AL 35898-7466.

Winter Driving 2-5FMTV Heater Controls, Coolant Overflow Tank 6HMMWV Engine 7HMMWV, CUCV Oil Filler Cap, CDRV 8-9HMMWV Antenna Rub Damage 9M149A2 Trailer Water Tank Cleaning 10M939/M939A1 Truck Hot Water Heater 11Freightliner M915-Series Brush Guard 11

WHEELED VEHICLES 2

PS 554 1 JAN 99

AN/PDR-75 Humidity Indicator Element 42AN/VRC-12 RT Antenna Hookup Adapter 43Vehicular Antenna Tension Relief 43Commo Shelter Roof Protection 44-45Duster Kits and Refills 45AN/UXC-7 Facsimile Document Holder 46-47RL-207A/G Reel V-belt 47

COMMUNICATIONS 42

Dragon Missile Sight Protection 24-25Avenger Missile Turret Seats 25TOW 2 Missile Tripod 26

MISSILES 24

You are invited to send PS your ideas for improving maintenanceprocedures, questions on maintenance and supply problems,and questions or comments on material published in PS. Justwrite to:

MSG Half-Mast The Preventive Maintenance Monthly LOGSA, Bldg. 5307 Redstone Arsenal, AL 35898-7466

Or E-mail to:

[email protected] Internet Address:

http://www.logsa.army.mil/psmag/pshome.html

M2 Burner Safety 54-55Immersion Heater Rust Prevention 56-57Water Can Moisture Removal 57

SOLDIER SUPPORT 54

M1 Tank Impact Wrench 12-13M1 Tank Spent Ammo Frame 14M1 Tank Roadwheel Hubs, IGV Pin 15MLRS Windshield Cleaning, Coolant Leaks 16-17MLRS Fan Shroud Fins, Track and Cab Nuts 18STE-M1/FVS Test Set 19M113 FOV Drivers Hatch Bumper 20M109 SP Howitzer, M992 Ammo Carrier Access

Grille, Starter, Radiator Shroud Seals 21,22SUSV Fire Extinguisher and Bracket 22M119A1 Towed Howitzer Stuffing Box Plug 23

COMBAT VEHICLES 12

TB 43-PS-554, The Preventive Maintenance Monthly, is anofficial publication of the Department of the Army, providinginformation for all soldiers assigned to combat and combatsupport units and all soldiers with unit maintenance and supplyduties. All information published has been reviewed and ap-proved by the agency responsible for the equipment, publicationor policy discussed. Application of the information is optionalwith the user. Masculine pronouns may refer to both genders.

Machine Gun Corrosion Prevention 35M2 MG Back Plate Locking Latch 35M60 MG Stuck Round Removal 36M60 MG Recoil Spring 37

SMALL ARMS 35

M157/M157A2 Smoke Generator Blank 38-39M8A1 Chemical Alarm M43A1 Detector 40-41M41 PATS Calibration and Repair 41

NBC 38

LOGSA Phone Number Updates 58-59QDR On-line Filing 60

LOGISTICS MANAGEMENT 58

Nuts, Bolts and Washers 48-50Tool Box Flag 505-Ton Wrecker Torch Outfit 51Drill Chuck Keys 52-53

TOOLS 48

By Order of the Secretary of the Army:

DENNIS J. REIMERGeneral, United States Army Chief of Staff

Official:

JOEL B. HUDSONAdministrative Assistant to the Secretary of the Army

05243

EDITORIAL 11998 ANNUAL INDEX 27

CONNIE'S POST SCRIPTS 61


2/44

January1999

TB 43-PS-554Issue 554

WHAT AREYOU LOOKING FOR

IN THE ANNUAL PS INDEX , SANTA?

SLEDMAINTENANCE TIPS.

IT'S NEVER TOO EARLYTO START PM !

Approved for Public Release; Distribution is Unlimited

THE

PREVENTIVEMAINTENANCE

MONTHLY


3/44

t may seem like your equipmentis good to go after you pull PMCSand dont find any faults listed onyour TMs PMCS checklist.

But a PMCS checklist usually cov-ers only the most critical checks andservices. It doesnt cover everything.But some equipment operators thinkif its not listed in their TMs PMCS

chart, they dont have to check it outduring every PMCS.

Theyre wrong. In fact, sometimestheyre dead wrong.

A lot of stuff not mentioned inthe checklist is important, too. Aleaking hydraulic line, loose cableconnector, broken weld or heavy cor-

rosion are surely just as important asa worn fan belt.

The intro to most itemized PMCSchecklists tells you to look for these

and other problems as you inspect eachitem on the checklist:

Loose or missing bolts, nuts or screwsCracked or rusted weldsFrayed wiring, loose or brokenconnectorsLeaking or worn hoses and fluid linesSigns of corrosion

If you spot any of these problems that

you cant fix yourself, report them justlike you do when you find problemswith specific items on your PMCSchecklist.

Performing only those checks and ser-vices spelled out on the PMCS check-list just wont cut it. PMCS is morethan that. Much more.

Its making sure that everything isgood to go, whether its spelled out onyour equipments PMCS chart or not.

Its that simple.

i checkedevery item in

the pmcs checklistand this bradley

is ready toroll.

hey, pal!there's lots of

stuff not mentionedin the checklistthat you need

to check !


4/44

PS 554 2 JAN 99

winter meanshazardous driving

conditions when even good drivers get

tripped up .

here aresome ways to

make your drivesafer .

Adjust your speed to road conditions. Steep hills, sharp curves, ice, or snow-covered roads mean trouble.

On a slick road, you cant count on your brakes to stop you. Stomp on thebrakes and youre gonna slide.

that's it! stay cool andsteer into the

direction you'reskidding !

If you do skid, steer in the direction the rear of the vehicle is headed. If youredriving a tractor-trailer, steer away from the direction of the sliding trailer.Remember, dont oversteer! Steer it just enough to correct your skid. Stay cool.


5/44

the roadahead might look

clean , but shaded areas

stay icy .

bridges andoverpasses freeze

first . cold air passes underthem and water will

freeze fast .

to crosssafely, go easy

on the throttle , withno braking .

use extra caution on sharp

curves .

use enoughpower to help you around

curves, and to hold traction .take it easy, no jerking.

look ahead , keepyour eyes moving --be ready to

stop at all times . plan to stop 20 or30 feet short of your goal . that

extra room is for unexpected trouble .

slow downbefore going into a curve

or downgrade . engine draghelps too --just ease off

on the throttle.


6/44

PS 554 4 JAN 99

When climbing a hill, therere onlytwo forces to helpmomentum andtraction. The more momentum youhave, the less traction you need. Itsa good idea to lay back and letthe vehicles ahead of you make

it to the top first. That way, youwont have to stop half wayup. Keep your distance.

lay back ...keep moving

slowly 'til he getsto the top of

the hill .

Get arunning start, so

when you reach thepeak, youve got enough

momentum left to get youover. Try to get to the topof the hill in one smooth,

uninterrupted run.

Keeping your tires in good condition and properly inflated helps traction. Besure your load is evenly distributed. Avoid poor drivinglike jackrabbit starts,sudden stops, and sharp turnsthat breaks traction.

hey, pal!

i'm no jackrabbit .ease down on MYaccelerator !

Watch that shift, particularly the downshift. It can break your grip on the road.Make each shift as smooth as possible. With a manual transmission, you


7/44

Going into curves, slow down before you enter thecurve, steer smoothly and evenlyno jerking. Get thefeel of the curve.

Under icy conditions, it can take three to 12times as far to stop. Give yourself plenty of

room to get stopped. Let the powertrain slow you down.

NEVERGO TOO FAST OR

THE CENTRIFUGAL FORCEWILL SLING YOU OFF

THE ROAD .

NEVER SLAM ON THE BRAKES! FRONT

WHEELS LOCK WITH HEAVYBRAKING , AND YOU

LOSE STEERING .

might even get over the top of the gradeusing one or two gears higher than youduse under ideal conditions. When youre on a dry road you can shiftdown to a lower gear using your engine as abrake. But on ice, remember that the engine holding

back your wheels is applying force to them just asbrakes do. It can throw you into a skid. If you feelyour truck start to slide, speed up your engine untilyour wheels are nolonger sliding.

If you have touse your hydraulicbrakes...tap, tap, tap em.

If your vehicle has airbrakes, apply light,steady pressure.

USING THESE TIPS , EVEN THE worst

WEATHER CONDITIONS WILLBE EASIER TO HANDLE .


8/44

PS 554 6 JAN 99

Coolant Overflow No HandholdM ake a note, mechanics and drivers,that the coolant overflow tank is nohandhold for climbing into the enginearea of an FMTV.

The overflow hose connector is at-tached right at the cap, and when you

reach for the cap as a handhold, its bye-bye connector.That puts your truck out of action until the connector is reattached or anotheroverflow tank is installed.

Family of Medium Tactical Vehicles . . .

Pr ot ect Heat er Con t r ols W he n yo u F M T V co w-

bo ys mo u n t u p f o r a mis-sio n, ma ke s u re yo u gi ve

wide be r t h to t he hea te r

a nd def ros te r co n t rols o n

t he das h boa rd. T he p us h/ p ull co n t rols

s tic k o u t li ke so re t h u m bs

u nless t he y ve bee n p us hed

i n a t s h u tdo w n. A good

kic k f ro m a passe nge r

be nds t he co n t rols, w hic h

ca n lea ve yo u cold o r

f ogged i n.Co u rse, if t he co n t rols

a re p us hed i n as a ma t te r

of p roced u re a t s h u tdo w n,

yo u wo n t ha ve a p ro ble m.

Go t i t? uh-oh! iforgot to push

in the heater anddefrostercontrols .

Gripping hose breaks connector loose

PS 554 6 JAN 99


9/44

PS 554 7 JAN 99

. .. and gets packed under intake manifoldat rear of engine

So, TACOM is adding this semi-annual check to the PMCS. Itll showup under Body on Page 2-6 in TM9-2320-280-20-1:

Make sure the engine compart-ment is clean and free of debris. Giveparticular attention to the rear

of the engine. It may be necessary toremove the engine access coverinside the vehicle to ensure this areais clean.

HMMWV . . .

ou know how every once in a whileyou have to take your HMMWV out

into the boonies? How the weeds,leaves, sticks, dirt and mud you drivethrough get crammed into every open-ing on the underside of the truck?

Well, some of that stuff can find itsway into the engine compartment, likebetween the intake manifold and theengine block.

Very few folks ever look to seewhats lurking thereand that can leadto leaks at the fuel injector lines.

lookat all this

damp trash i foundbetween your intake

manifold andthe engine

block .

bet it smells like

diesel !

Trash gets in at front of engine.. .

PS 554 7 JAN 99


10/44

PS 554PS 554 8 JAN 99

Rattles? Its OK

If the CDRV flunks, replace itwith NSN 2990-01-147-9284 forthe HMMWV. There is no test forthe CUCVs CDRV. If you suspectits bad, replace it, NSN 2990-01-147-9284.

Check the CDRV connectors andhoses, too. If they are loose or thehoses have holes, dirt will plug theCDRV. Tighten or replace them if necessary.

hen the pressure gets too muchfor your HMMWV or CUCV, some-things got to give.

A clogged crankcase depressionregulator valve (CDRV) on aHMMWV or CUCV, or a plugged-upoil filler cap on your CUCV, lets pres-sure build in the crankcase. What givesare oil pan and valve cover gasketsand crankcase seals, which can lead toa blown engine.

Oil Filler CapThe CUCV oil filler cap is easy to

test. Take it off and shake it. If it rattles,

its OK. If it doesnt, replace it. Dothis every semiannual service.

CDRVItem 7 in Table 2-1 of the

HMMWVs TM 9-2320-280-20-1 saysto check the CDRV every six months.Item 2 in Table 2-1 of the CUCVsTM 9-2320-289-20 says to check itsCDRV annually.

But dont wait if you see oil on theengine or on the ground after the trucksbeen running or if you see blue ex-haust smoke. Those signs tell you theCDRVs probably clogged.

Repairmen, use a manometer to testthe HMMWVs CDRV for two to fiveinches of vacuum at 2,000 rpm. Theprocedures on Page 3-14 in TM 9-2320-280-20-2.

Check hoses and connectorsfor looseness and holes

my cdrv is

clogged . i can't take the

pressure!

look ouT! THEENGINE'S

GONNABLOW !

HMMWV, CUCV . . .

PS 554


11/44

oo many units wait until the elev-enth hour before a field exercise toclean their water trailer s tank. Or theyleave water in the tank for months at atime after the last exercise.

Cleaning the tank improves the tasteof the water and keeps the tank safe touse. TM 9-2330-267-14&P says to

clean the tank annually, or when themedics tell you the tank is contami-nated. But why wait? Youll be drink-ing the water, too.

Here are some PM tips to keep youfrom ending up with a cup of slimy,rusty, metallic-tasting water to drink.* After a field exercise, empty the

tank completely. Water left in thetank causes rust, mineral depositsand algae buildup.

M149A2-SeriesTrailers . . .

* To stop deposit buildup, everythree months pour in eight gallonsof vinegar, NSN 8950-01-079-3978, and leave it for 5-6 hours.Then empty the tank and flush itwith clean water.

* Clean the tank more often duringthe summer. Make sure you drain

the tank completely between uses.Rusty Stainless Steel

If the water from a stainless steeltank has a rusty, metallic taste, eyeballthe weld joints in the tank for rust.

Scrub away rust with a solution of water and scouring powder, NSN 7930-01-423-1147. Always use a nonmetal-

lic, nylon brush. You can get one with NSN 7920-00-061-0038.

Flush the tank thoroughly withcleanwater. Scrub it again if you stillsee rust.

WAIT 'TIL THEY

TASTEME!!

PS 554 10 JAN 99


12/44

Brush Guard Drill n DrainT

hat hollow brush guard onM915A2, M916A1, M916A2 andM917A1 trucks is ripe for corrosionand damage because it fills withwater.

The water causes rust in warmweather and becomes ice in the cold.Freezing water can split the tubing.

Take care of both problems by drill-ing a 1 / 4 -in hole in the bottom of theguards cross rail.

Use green CARC paint, NSN 8010-01-229-7546, for touch-up.

Heater, blower motor,NSN 6105-00-512-9225

ome of the parts for the hot waterheater on your 5-ton trucks wereleft out of TM 9-2320-272-20P.

M939/M939A1-Series Trucks . . .

Ventilator, NSN2540-01-083-1109

Seal, NSN5330-01-108-9119

Canister, NSN2540-01-138-0925

Adhesive (for seal),NSN 8040-00-543-7170

Here are the

ones you need.. .

Drill hole in brush guard

11 JAN 99

M915A2/M916A1/M916A2/M917A1 Trucks . . .


13/44

PS 554PS 554 12 JAN 99

rewmen, tank track maintenance isa lot easier with an electric impactwrench, NSN 5130-01-363-0964, thatsin tip-top shape.

Proper use and good PM will ensurethe wrench is ready the next time

you need it. Here are a few things toremember:

Operation The impact wrench is a powerful toolthat generates a lot of heat, even duringnormal operations. The manufacturer rec-ommends a duty cycle of three to fiveseconds on and five to 10 seconds off.

M1-Series Tanks . . .

Free run the wrenchfor about 30 seconds af-ter hard use. That wilhelp get rid of excesheat. Always use the sidhandle to avoid covering the air vents with hand or glove. Keep the wrencsquare with the fastenerbeing removed or installed. Never let the wrenchhang free from a fas-tener or use a pry bar toget it loose.

If the wrench wontbreak the hardwarloose within five seconds, stop ! The wrencwill burn up if you forceit to loosen nuts an

bolts that are too tight. Use an exten-sion handle, socket, and socket wrenchfrom the tanks basic issue items (BII)to break the hardware loose, then usethe impact wrench to finish the job. When installing hardware, alwaysthread it with your fingers first,

then tighten with the impact wrench.Using the wrench to start nuts and boltscould cross-thread them and jam thehardware.

If the TM requires a specific torquefor the hardware, use a torque wrenchto finish tightening, not the impactwrench.

Give wrench a rest afterevery 35 seconds of use

that new brushkit has you

ready togo!

yep! im ready

to make animpact!

PS 554PS 554 12 JAN 99


14/44

PS 554 14 JAN 99

oaders, empty shellcasings can pack awallop when they hitthe spent ammunitionframe in your M1-series tank. It takesgood PM on yourpart to keep the framerolling with thosepunches.

Make your firststop the pins thatconnect the frame tothe spent ammunitionscreen guard.

Both pins are held in place with cotter pins,NSN 5315-01-390-7088. Over time, the con-

stant impact of the shell casings will break orloosen the cotter pins. When the cotter pinsfall out, so do the frame pins. The frame cantcontain the shell casings.

Keep an eye on the cotter pins. If theyreloose, tighten em. If they look worn or dam-aged, replace em.

Your second stop is the pivoting bars on

t h eframes flipper and shield. Moisture from condensation and washing lead torust, which freezes the flipper and shield in place. You end up with shell casingseverywhere but where they should be.

Have your mechanic replace any barsthat are badly rusted. NSN 5340-01-185-9634 gets the flipper bar. Theguard bar is NSN 5340-01-185-9635.

The bars should get a light coat of PL-M before installation and again dur-ing semiannual maintenance. Thatkeeps everything moving smoothly.

Lube bars semiannually with PL-M

M1-Series Tanks . . .

Check cotter pins for wear

look out!runaway shell

casing!

maybe nowill get somespent ammo

frame pm!


15/44

PS 554

Without movement, oilstays in bottom of hub

Pin t he Blam e on IGV PinD rivers, if your M1-series tank loses engine power and theFUEL CONTROL FAULTY light keeps coming on,look for a missing inlet guide vane (IGV) actuatorpin.

The spring-loaded bearings at the tip of thepin get gummed up with oil and dirt. Thebearings lose their tension and the pin fallsout.

Have your mechanic check each pin at

every semiannual service. If the bear-ings dont spring back when theyare pressed and released, re-place the pin with NSN 5315-01-205-8647.

rivers, if your M1-series tank hasntmoved for awhile, you could have aproblem the next time you drive it.

When a tank sits for a long timethree to four weeksthe oil in theroadwheel hubs sits, too. The top partof the hub seal doesnt get lubed, so it

dries out and cracks. You end up withleaking hubs during your next mission.

So, move your vehicle at least everytwo weeks. Just a few feet is enough

to turn the roadwheel hubs and getoil to the gaskets.

you rea long wayfrom home,lil fella!

SNIFF! NIFF!My bearingsjammed ! I fell out

and now im lost !

three leakyroadwheel hubs!

how did that happen?

what didyou expect?

i havent beenmoved in amonth!

PS 554


16/44

PS 554PS 554 16 JAN 99

Looking forD rivers, nothings more irritating thancant find. Unfortunately, thats what hacoolant hose, NSN 4720-01-109-2052.

Leaks from that hose drip straight doheat from the manifold immediately evgone, you cant find any trace of a leak.

To make matters worse, the hose mayonly leak when engine heat makes itexpand. Once the engine cools down,the hose contracts and the leak oftendisappears.

Stop those leaks from happening.Eyeball the hose quarterly for cracksand feel for softness. If you find either, g

Clean inside and outsideof ballistic windows

ay you dont do windows? When it comes to the cab windshields on yourMLRS, its better not to do anything than to clean em the wrong way.

Cleaning the windshields with high-pressure water or steam is definitely thewrong way. The heat and high pressure loosen the adhesive that binds the glasslayers together. The glass turns hazy or opaque, making it very hard for crew-men to see. If it gets bad enough, your vehicle is NMC.

Heres the right way to clean cab windshields:1. Flush the outside window surfacewith low-pressure water. Wipe the in-side surface with a wet sponge or soft,wet cloth.

MLRS . . .

Keep clothing buckles, buttons, and z3. Flush the outside surface again with a sponge or cloth and clean water until t4. Dry each surface by lightly wipingstrokes from the top to the bottom. That

2. Wipe both surfaces lightly with asponge or soft cloth saturated witha solution of general purpose deter-gent, NSN 7930-00-880-4454, and wa-ter. Use 1 / 4 ounce of detergent pergallon of water.

Use sponge and soapy water only

oww!how do you

expect either ofus to see withtreatment like

that!

PS 554PS 554 16 JAN 99


17/44

Loose fins can be rewelded

Check fan shroud fins fordamage after operation

MLRS . . .

ouch!my fan shroud

fins will need somepm after thisbeating !

rivers, your MLRS takes a beatingfrom tree limbs and branches whenyoure in the field.

Thats why you should always givethe fan shroud fins a good once-over

when you get back to the motor pool.Fins that are knocked loose in the fieldwill turn up missing if you dont spotand report problems.

Eyeball the fins closely. Try to moveem. If theres any give at all, report it.DS can weld loose fins and save yourunit the money it takes for fabricationor replacement.

MLRS Track and Cab NutsT he MLRS headshed is switching to self-locking nuts with nonmetallicinsets on the cab hinge and track pads. They hold better than the ones inTM 9-1450-646-24P. Use NSN 5310-00-068-8067 for Item 8 of Fig 1 andItem 78 of Fig 171. Use NSN 5310-00-175-2710 for Item 5 in Fig 9, Item 4in Fig 13 and Items 13, 15, and 21 in KITS.

PS 554 18 JAN 99


18/44

. . .and acid brushClean connectors with alcohol...

Dear Editor,

The STE-M1/FVS test set can save you lots of timeif its workingright. If its not, it can waste your time with needless troubleshooting.

Ive come up with a few ways to keep the tester testing accurately. The most important is to clean its cable connectors monthly with isopropyl alcohol and an acid swab brush. If the connectors are dirty, you get faultswhere no faults exist.

If you do get a fault during a test, dont start troubleshooting right away. First, run the test again. If you get the same fault, check that the connectors on the vehicles diagnostic panel and turret distribution box are clean. Clean them with isopropyl alcohol and an acid swab brush if necessary. Make sure the connectors are dry before youhook them back up.

Finally, ensure that all the STE-M1/FVScables are screwed snugly into the vehicle connectors. A loose cable causes faults.

Then, rerun the test. Nine times out of 10 your vehicle will pass the test.Gary Williams29th Inf

Ft Benning, GA W e certainl y can t f ind f ault with

your tests f or the tester. T hank s.

STE-M1/FVS Test Set . . .

youflunkedmy test ,

pal!

youlook like you're

the one that needs testing !

PS 554 19 JAN 99


19/44

M113-Series FOV . . .

Hatch should compressbumper about1 /4 inch

ouch!i wish he'd

take a look at hishatch bumper .

Hatch hinge cracks here

rivers, if youre having problems

with cracked hatch hinges, the culpritmight be a low hatch bumper.

If the bumper doesnt sit high enough,theres free play between the bumper andthe drivers hatcheven when the hatchis locked open.

The hatch generates a lot of stresswhen it bounces up and down during

operation. Pretty soonCRA-A-ACK!

the hinge gives way.

hook engaged, the hatch should com-

press the bumper about1 / 4 inch. If it

doesnt, get your mechanic to raisethe bumper using flat washers, NSN5310-00-951-7209.

While youre at it, check the con-dition of the bumper. If the rubber iscracked, chipped or has lost its flex-ibility, get your mechanic to replaceit. Hell use NSN 5340-00-209-9281for the M577- and M1068-series ve-hicles. NSN 5340-00-679-9211 getsa bumper for all other M113-seriesvehicles.

Check the hatch bumper right now.With the hatch open and the hold-down


20/44

M109-Series SP Howitzer, M992-Series Ammo Carrier . . .

Slamminggrillebreaksquick-releasepin

ouch! what happened to

him ?he got grilled

by his howitzer'sengine access

grill !

PS 554 21 JAN 99

M10 9-, M99 2-Seri es St ar t erNSN 2920-01-069-6997 gets the starter for your self-propelled howitzers

and ammo carriers. The starter, NSN 2920-00-304-3493, shown in the partsmanuals for these vehicles is no longer available.

ts easy to close the engine access grille on

your M109-series SP howitzer and M992-seriesammo carrier by letting it fall back in place, butits also costly.

Dropping the grille breaks the grille supportsquick-release pin, especially if the pin hasntbeen stowed properly. Then the support cant hold upthe grille.

Leaning the grille back against the turret is a bad

idea, too. You dont want to be working there if thegrille comes crashing down!

Instead, order a new quick-release pin, NSN 5315-00-419-0758, to fix thesupport. Then, remember to slowly lower the grille in place.


21/44

M109-Series SP Howitzers, M992-Series Ammo Carriers . . .

man!am i running

hot ! i was too-- until i got new radiator

shroud seals .

echanics, if youve been getting complaints of a hot-running enginein an M109-series howitzer or M992-series ammo carrier, check the radiatorshroud seals.

The seals form an air barrier between the radiator and fan tower. That barrierincreases air flow through the radiator to keep the engine cool. If seals aremissing, torn, squashed or mangled,air escapes around the sides of theradiator. Engine temperature goes up.

Eyeball the shroud seals next timethe packs out. If the seals are miss-ing or torn, order new ones. Check the -24P manual for the correct sealson your vehicle.

Replace worn or missing shroud seals

SUSV Fire Ex t ingui sherG et the hand-held CO 2 fire extinguisher and bracket for the small unitsupport vehicle with NSN 4210-01-388-7854. Its a replacement for thehalon extinguisher shown as Item 11 on Page B-4 of TM 9-2350-285-10.The new extinguisher alone is NSN 4210-01-391-0784.

PS 554 22 JAN 99


22/44

The plug has holes to vent excess pressure from the grease used in the

recuperator. If you substitute astandard bolt,theres no vent-ing. Pressurebuilds until thatbolt becomes aminiature rocket just waiting to blast off.

The next time you remove the bolt during services WHOOM! You betterhope youre not in the way.Again, use only the hardware your TM calls for. No substitutes!

Substitute bolt lets pressure buildPlughasdrilledventholes

M119A1 Towed Howitzer . . .

hey,sergeant!

did you see abolt fly over

this way ?

PS 554 23 JAN 99

echanics, youve probably heard more than once, Always use the hard-ware called for in the TM. Dont substitute! The machine thread plug, NSN5365-01-344-6040, on the stuffing box of your M119A1 howitzer is agreat example of why this is so important.


23/44


24/44

PS 554 26 JAN 99

TOW 2 Missile System . . .

Cracks in crossbars?

he tripod is what supports your TOW.If the tripods shaky, your accuracy willbe too. Here are a few ways you cansupport the tripod.

The tripods most critical part is thelocking clamp. If it works loose, as itoften does during firing, the traversingunit (TU) wont be locked on tight andyoull have trouble tracking a target.

After you install the TU and lock downthe clamp, try to twist the TU back and

forth. If there is any movement, yourrepairman should tighten the clamp with

Help the tripod last by not ridingaround with the TU mounted. That loos-ens the clamp and eventually ruins it.

Eyeball the tripod crossbars on all foursides for cracks. If you spot any, itstime for a new tripod.

Locking clip OK?

a 3 / 16 -in hex wrench. If you would ratherdo it yourself, get a cheap hex wrenchwith NSN 5120-00-240-5300.

Turn the TU again. If theres still play,the clamps shot. Get a different tripod.

Also make sure the locking clip forthe clamp works. If it cant do the job,the clamp can unlock and the TU takesa fall.

Tighten clamp if loose

Test tripod by twisting TU

i'm feelinga little tipsy

'cause my tripodneeds pm .

PS 554 26 JAN 99


25/44

M2 Machine Gun . . .

B ad L a t c h e sB ad M2 machine gun back plate locking latchesare still out there.

The bad latches bend and warp and let the back plate slip off. If that happens, your M2 could comeapart during firing. Thats why you armorers needto check your M2s right now for bad latches.

Bad latches are rounded on the corners. Goodlatches are square-cornered, have more metal on thebottom, and have the part number stamped on them.

If you find a bad latch, get support to replace it.M2s with the old latches are deadlined until theyget a new latch.

D D D D D ear Half-Mast ,ear Half-Mast ,ear Half-Mast ,ear Half-Mast ,ear Half-Mast ,Many of our machine gun t ripods ar Many of our machine gun t ripods ar Many of our machine gun t ripods ar Many of our machine gun t ripods ar Many of our machine gun t ripods ar e st ripped down t o bar e st ripped down t o bar e st ripped down t o bar e st ripped down t o bar e st ripped down t o bar e met al and e met al and e met al and e met al and e met al and

ar ar ar ar ar e rust ing. Some unit s paint t heir t ripods t o pr e rust ing. Some unit s paint t heir t ripods t o pr e rust ing. Some unit s paint t heir t ripods t o pr e rust ing. Some unit s paint t heir t ripods t o pr e rust ing. Some unit s paint t heir t ripods t o pr ev ev ev ev ev ent corrosion. D ent corrosion. D ent corrosion. D ent corrosion. D ent corrosion. D oes oes oes oes oes t his help? t his help? t his help? t his help? t his help?

11111LLLLLT L.B.T L.B.T L.B.T L.B.T L.B.

Dear Lieutenant L.B.,

Paint is not the answer. It will not stick to the smooth metal of the tripod.Whenever bare spots appear on a tripod, you should immediately treat themwith solid film lubricant (SFL), NSN 9150-00-754-0064. Thats the best way to

beat corrosion on the tripod and the machine gun itself. If youre part of a rapid deployment or divisional combat unit, you can touch upno more than one-third of the tripod withSFL. If more than one-third of the finish isgone, you should turn in the tripod. Allother units can touch up the entire tripod.

Clean off any corrosion before applyingSFL.

Machine Guns . . .

N a k e d Tr i p o d s

Treat bare spots with SFL

Good latch Bad latch

Partnumber

PS 554 35 JAN 99


26/44

Hold cocking handle to rear even with safety set

good ! i'llremove the

barrel and clearthat stuck

round .

i've got the gun set on

safe and i'm holding the bolt back so it's

double safe !

ometimes SAFE isnt safe enough...like when youre removing a stuck orruptured round from your M60. Even with the gun set on SAFE, the bolt could

slip off the sear and the round could go off.To remove a stuck round, TM 9-1005-224-10 says to pull the charging handle

all the way to the rear and put your M60 on SAFE before you take off the barrel.But if SAFE doesnt hold the sear and bolt in place, that stuck round could go

off and jam the bolt against the sear.The solution is to have a buddy hold the charging handle to the rear while you

take off the barrel. Thentheres no chance the

bolt can move. Once abarrel is removed, inserta cleaning rod in themuzzle and tap out thecase or cartridge.

M60 Machine Gun . . .


27/44

PS 554 37 JAN 99

Replace springsthat measureless than231 /4 inches

Old double-strand springuses thinnerguide rod

New single-

strand springuses thickerguide rod

f you armorers dont measure up, you cant expect your M60 machine guns tofire successfully.

Firing compresses the recoil spring. If the spring shortens to less than 23 1 / 4inches, bad things happenpoor recoil, double feeds, jamming.

After every trip to the range, get out your ruler and measure the recoil springs.Replace any that are too short.

Remember, too, that two different guide rods and recoil springs are in thesystem and they cant be mixed. The old spring is double-strand, while the newspring is single-strand. The old guide rod is thin, while the new rod is thicker.

If you use the old guide rod with the new spring, the spring will be loose andit will develop flat spots. Then you get jamming.

If you force the new guide rod into the old spring, youll damage the spring.If the rod and spring dont fit together easilyor snuglydont use them.

Order a new rod, NSN 1005-01-188-7877, or new spring, NSN 5360-01-203-2973.

when it comes tomy recoil spring . . . ...alwaysfollow this

rule!


28/44

he new engine head blank, NSN4910-01-449-5335, cant help youtroubleshoot the igniter if your repair-men dont know how to use it. Heresthe scoop:

Before starting, remember that thisis a two-man job, so get help. Nevertest for spark without the enginehead or blank installed. They preventflashback.1. Set the circuit breaker CB1 and thepower switch to ON. (M157A2: SetCB1 to ON.)

M157/ M157A2Smoke Generator . . .

6. If theres a spark, set all switches toOFF, reinstall the head and continuetroubleshooting for adequate fuel/air.

15 secondsand check the ignitersspark in the combustion chamber.

Set CB1 breaker to ON

Look for spark in chamber

7. If there is no spark, set all switchto OFF and disconnect the ignitcable from the igniter. Set the powswitch and CB1 to ON. (M157A2: SCB1 to ON.) Hold the end of the igniticable 1 / 4 inch from the metal fraHold the engine switch to START.

No spark? Hold ignitioncable 1/4 inch from frame

2. Turn the fuel switch on the controlpanel to OFF and purge any remainingair from air compressor. (M157A2: Turnball valve to OFF.)3. Disconnect the air supply line.4. Remove the engine head and replaceit with the blank.

5. Hold the engine switch inSTARTbut no longer than

DON'T DRAW A

BLANK, USE ABLANK...

. . .AN ENGINEHEAD BLANK TOTROUBLESHOOT

MY IGNITER,

THAT IS!

PS 554 38

Install blank


29/44


30/44

D D D D D ear Half-Mast ,ear Half-Mast ,ear Half-Mast ,ear Half-Mast ,ear Half-Mast ,I hav I hav I hav I hav I hav e an AN/PDR-75 r e an AN/PDR-75 r e an AN/PDR-75 r e an AN/PDR-75 r e an AN/PDR-75 r adiac set . I hav adiac set . I hav adiac set . I hav adiac set . I hav adiac set . I hav e e e e e

been t rying wit h no success t o get a been t rying wit h no success t o get a been t rying wit h no success t o get a been t rying wit h no success t o get a been t rying wit h no success t o get a r r r r r eplacement humidit y indicat or element .eplacement humidit y indicat or element .eplacement humidit y indicat or element .eplacement humidit y indicat or element .eplacement humidit y indicat or element .Mine has t urned from blue t o pink and t he Mine has t urned from blue t o pink and t he Mine has t urned from blue t o pink and t he Mine has t urned from blue t o pink and t he Mine has t urned from blue t o pink and t he TM says t o t urn in a pink indicat or element TM says t o t urn in a pink indicat or element TM says t o t urn in a pink indicat or element TM says t o t urn in a pink indicat or element TM says t o t urn in a pink indicat or element for r for r for r for r for r eplacement .eplacement .eplacement .eplacement .eplacement .

But t her But t her But t her But t her But t her e e e e e seems t o be seems t o be seems t o be seems t o be seems t o be no NSN for t he no NSN for t he no NSN for t he no NSN for t he no NSN for t he element ! And no element ! And no element ! And no element ! And no element ! And no one I t urn t o one I t urn t o one I t urn t o one I t urn t o one I t urn t o knows how t o knows how t o knows how t o knows how t o knows how t o get a new one.get a new one.get a new one.get a new one.get a new one.So So So So So , Im t urning , Im t urning , Im t urning , Im t urning , Im t urning t o you. What t o you. What t o you. What t o you. What t o you. What should I do? should I do? should I do? should I do? should I do?

SGT E. A. L.SGT E. A. L.SGT E. A. L.SGT E. A. L.SGT E. A. L.

Dear Sergeant E. A. L.,

One good turndeserves anotherforget

about replacing that indicator element! TM 11-6665-236-12 oncesaid to turn in a pink element to generalsupport for replacement, but nomore. Page 2-2 of the

newest version of theTMJun 95says that no element changes arerequired. In fact, newradiac sets dont have anindicator element at all!

Moisture inside themeter is not a problem.

AN/PDR-75 . . .

i can't find a replacement

humidity indicatorelement.

you don't need to be blue

about a pinkreplacement.

Ignore element color here

PS 554 42 JAN 99


31/44

Vehicular Antennas . . .

Let em St and a t EaseW hen your vehicles parked for anextended length of time, like over-night, take the antenna out of the tie-

down clip and let it stand straight up.This relieves the tension on the basespring. Over time, tension weakensthe spring.

This also keeps the base spring coilstogether, which helps keep out mois-ture and debris. A tied-down antennahas its spring coils spread open, mak-ing it easier for dirt and moisture toget inside and damage the base andthe RF cable.

ake the hookup between yourfield expedient antenna and your

AN/VRC-12 receiver-transmittereasy with the UG-1441 adapter,NSN 5935-00-410-1399.

One end of the adapter has bindingposts for field wire. The other end hasa BNC connector that fits the RTsANT receptacle.

The wire from the adapters red bind-

ing post goes to the antenna. The wirefrom the black binding post goes tothe counterpoise (lower wire).

To keep the adapter handy, fasten itto the RTs handle. This fix beats try-ing to feed field wire directly into thesets receptacle.

AN/VRC-12 RT . . .

Red

Black

i'll hookyou

upwith the

hookup !

PS 554 43 JAN 99

Parked overnight?

Untie antenna


32/44

It hates having heavy or sharp objects tossed on it and stored on it.If you guessed commo shelter, you guessed right.But judging by the looks of many commo shelter roofs, most of you didnt

know the answer!

Commo Shelters . . .

Never mix and match refills and kThe chemicals they use to propel thecompressed air are different and notcompatible.

Dust e r KD uster kits clean electronic equipwith compressed air. Use them to ducircuit boards, computers, front pan

Here are the NSNs for duster kits 10-oz refill cans of compressed air:

The roof of your commo sheltequipment, or to move your gear toThings like ground rods or concertin

The only load-bearing surfaces onon the roof itself!

Make sure you look at the roof ishelter. If you see punctures or bShelter leaks cause electrical shorts

Find out what you can fix, and wwork, in TB 43-0124, Maintenanceyou everything you need to know to

If you have no choice but to loaplywood under the equipment to pritems on top of the shelter changesbe a safety hazard.

For more information, see TM TM 10-5411-207-14 for the S-280 s

heres ariddle foryou commo

t ypes .

needanother

clue ? readon!

ooch!this gearis giving me a

headache !

Wha t has t wo th in la ye rs o f

me ta l co ve ring conduc t i ve foam

and tea rs qui te eas il y?

PS 554

Kit NSN 6830-01- Refill NS

406-9819 406-982

381-2675 (12 ki ts ) 388-69


33/44


34/44

ere are a bunch of availablekits and assortments for screws,

washers, metric fasteners andother common use items:

Hardware . . .

PS 554 48 JAN 99

Screw Assortments (steel)

NSN 5305- Description Pieces

01-211-6770

Screw, hex head, grade 8 with nuts. 1 / 4 inch to 1 / 2

1,470inch diameter, zinc-plated, coarse and fine threads

01-195-5479Screw, hex head, grade 5 with nuts. 1 / 4 inch to 1 / 2

1,470inch diameter, zinc-plated, coarse and fine threads

01-250-0594Screw, hex head, grade 5 with nuts and flat and

9,520lock washers. 1 / 4 inch to 3 / 4 inch diameter, zinc-plated, coarse threads

01-277-6289Screw, cap, socket head, grade 8, 1 / 4 inch, 5 / 16 inch

96and

3 / 8 inch diameter, coarse threads

01-309-4954Screw, cap, socket head, grade 8, 1 / 4 inch, 5 / 16 inch

96and 3 / 8 inch diameter, fine threads

00-206-4993Screw, machine, zinc-plated with nuts and washers.

3,000256, 348, 436, 632, 832, 1024, 1032, 1224and 1 / 4 20. Round, flat and fillister slotted heads

01-195-1552Screw, tapping (sheet metal), case hardened.

1,500#6, #8, #10 and #12. Pan, flat and oval phillips heads

00-194-6862Screw, tapping (sheet metal), nickel-plated, #4, #6,

495#8, #10, #12 and #14. Flat, binding and oval slottedheads

01-185-8786Setscrew, hex socket, alloy steel, cup point. #10 to

7051 / 2 inch diameter. 590 screws in 11 sizes with 115hex keys in seven sizes

01-186-7208Setscrew, hex socket, alloy steel, cup point, #6 to

2003 / 8 inch diameter screws in various lengths, coarseand fine threads


35/44

Screw Assortments

NSN 5305-01- Description Pieces

416-8563

Screws, self-tapping non-machine thread, 188

1,250

stainless steel, pan head, cross-recess drive.100 ea: #6 x3 / 8 inch, 1 / 2 inch, 3 / 4 inch and 1 inch;

#8 x 1 / 2 inch, 3 / 4 inch and 1 inch; #10 x1 / 2 inch and3 / 4 inch. 50 ea: #8 x 11 / 2 inch; #10 x 1 inch, 11 / 4 inchand 11 / 2 inch; #12 x3 / 4 inch, 1 inch and 11 / 2 inch

416-8576

Setscrews, 188 stainless steel, cup point, hex

900

socket drive. 50 ea: 440 x 1 / 8 inch, 3 / 16 inch and1 / 4 inch; 632 x 1 / 8 inch, 3 / 16 inch, 1 / 4 inch, 5 / 16 inchand 3 / 8 inch; 832 x 1 / 8 inch, 3 / 16 inch, 1 / 4 inch,5 / 16 inch and 3 / 8 inch; 1032 x 3 / 16 inch, 1 / 4 inch,5 / 16 inch, 3 / 8 inch and 1 / 2 inch

416-8580

Screws, machine, pan head, slotted, 188 stainless

1,200

steel. 50 ea: 4-40 x1 / 4 inch, 3 / 8 inch and 1 / 2 inch;632 x 1 / 4 inch, 3 / 8 inch, 1 / 2 inch, 3 / 4 inch and 1 inch;832 x 1 / 4 inch, 3 / 8 inch, 1 / 2 inch, 3 / 4 inch and 1 inch;1024 x 1 / 2 inch, 3 / 4 inch and 1 inch; 1032 x 1 / 4 inch,3 / 8 inch, 1 / 2 inch, 3 / 4 inch and 1 inch; 1 / 4 20 x 1 / 2 inch,3 / 4 inch and 1 inch

PS 554 49

Metric Fastener Assortments

NSN Description Pieces

5305-01-230-1530

Screws, hex head, nuts and split lock washers,

252

class 8.8 alloy steel, standard pitch threads, color:green. Six ea of various size screws: 4mm to 10mmdiameter. Lengths: 16mm to 50mm. 12 ea of

various size nuts: 4mm to 10mm. 12 ea lockwashers for 4mm through 10mm screws. 108screws, 72 nuts and 72 washers

5305-01-194-0522Screws, hex head, class 8.8 alloy steel, standard

71pitch threads, color: green. 10 ea of various sizes:4mm to 12mm diameter. Lengths: 16mm to 120mm

5310-01-193-9534

Nuts, hex, and flat washers. Nuts: class 8.8 alloy

400steel, standard pitch threads, color: green. 25 ofeach diameter nut and washer: 4mm to 16mmdiameters. 200 nuts and 200 washers


36/44

Remember, though, when replacing hardware on equipment, always use thefasteners called for in your TMs.

Washer Assortments


5310-01-239-3414Washers, flat, SAE steel for1 / 4 inch to 1 inch

240diameter screws/bolts

Tools . . .

Flag It!Dear Editor,

We had trouble in our motor pool with drivers backing into the rollaway toolboxes in the bays. That damaged the boxes and scattered the toolson the floor.

We made the boxes more visible with a flag that sticks up four feet above the box. Construct the flag with any kind of lightweight rod and a brightly-colored rag or streamer and fasten it to the back of the toolbox. Driverscan now easily spot the flag before they back over the toolbox.

SFC Ramos Archuleta

977th MP CoFt Riley, KS T hat s an id ea we can salute. Drivers should , o f course , al wa ys use

g round g uid es when back in g .PS 554 50

Miscellaneous Assortments


5307-01-210-7914Studs, plain, steel, grade 8, 5 / 16 inch, 3 / 8 inch and

547 / 16 inch diameters, coarse and fine threads

5307-01-178-5952Studs, plain and stepped, steel, grade 5, 1 / 4 inch to

2409 / 16 inch diameters, coarse and fine threads

5305-01-186-7068Screws, sheet metal, with flat and lock washers,

301#8 through 3 / 8 inch diameters. 158 screws, 100lock washers, 43 flat washers

5305-01-255-6350Screws, brake bleeder, for most makes and models,

96foreign and domestic. 11 different sizes

5306-01-331-7523Rod, continuous thread, steel, bright-plated,

45chromate-coated, 12 inch lengths, 3 / 16 inch to1 / 2 inch diameters


37/44

Item NSN

Acetylene4820-00-551-1094

regulator valveOxygen

4820-00-641-3519regulator valve

Oxygen4820-00-828-7190check valve

Acetylene4820-00-828-7192check valve

Welders 5120-00-240-3096hammer/brushFriction igniter 5120-00-965-0326

Flint tip igniter 5120-00-965-0603

Tool roll 5140-00-356-8471

Tool box 5140-00-473-6260

Welder s gloves 8415-00-268-7859

Item NSN

Acetylene4820-00-551-1094

regulator valveOxygen

4820-00-641-3519regulator valve

Oxygen4820-00-828-7190check valve

Acetylene4820-00-828-7192check valve

Welders 5120-00-240-3096hammer/brushFriction igniter 5120-00-965-0326

Flint tip igniter 5120-00-965-0603

Tool roll 5140-00-356-8471

Tool box 5140-00-473-6260

Welder s gloves 8415-00-268-7859

Item NSN

Cutting and3433-00-294-6743

welding tipsCleaner set

3439-00-383-3634(12 cleaners, 0.0210.067-in diameter,w/o handle, w/case)

Cleaner set

3439-00-403-0970(8 cleaners, 0.0760.116-in diameter,w/handle, w/case)

Goggles 4240-00-816-3819

Hose set,4720-00-081-5643nonmetallic

Rubber hose,4720-00-834-2560duplex, 25-ft

Rubber hose,4720-01-043-4099duplex, 12.5-ft

PS 554 51 JAN 99

utting and welding torch outfit, NSN 3433-00-357-6311, used on 5-tonwreckers, has an acquisition advice code (AAC) of Y, meaning there are noneavailable in the supply system.

Until stock is available, you can put together a kit from the following parts:

Wrecker Torch Outfit . . .

SC3433-90-CL-N01 covers thetorch outfit.

get your welderoutfit parts here !


38/44

CHUCK MANUFACNUMBER

Jacobs 1A, 1B, 1BS, MC1, MC1ASupreme 1J, 1A, 1T1, S1A H1A, H

Jacobs 2A, 2B, MC5Supreme 2A, 2B, 2TB, 2T2, H2A

Jacobs 633C, 633DSupreme 6T33E

Jacobs 20NSupreme 26T5

Jacobs 7, 7B, 7BA, 7-1ASupreme 4A, 4B, 4C, 4T1, 4T2

Jacobs 30, 30A, 30B, 31B, 31BA, Supreme 7A,7B, 7 T1, 7T2, H13A

Jacobs 3333CSupreme 5T33C, 15T33C

Jacobs 72G, SM4G61, MC2, H1, DC1, DC4, MC1G61, MC1G41

Supreme BM1A, B1A, B80A, BM

Jacobs 74K, 76K, 77K,SM8, DC8MC4K41, MC8K64, MC8K33, U8K33

Supreme B13A, BM13A, B14B, BB16T33

Jacobs MC10R64, MC33R33, MC

PS 554

Tools . . .

beforeyou turn on your

portable electric drill, makesure you remove the

chuck key .

otherwise thekey could fly out ofthe chuck and strike

your face .

look out tim!

better yet, useonly safety self-ejecting

drill chuck keys. self-ejectingkeys are spring loaded and

won 't stay in the chuck onceit's tightened .

Look onthe chuck for the

manufacturers nameand model number. Then

order by NSN fromthis table...

PS 554


39/44


40/44


41/44

PS 554

Product DSN

Army Central 897-2500/2491/Service Point (ACSP) 2496/2498

AMDF Discrepancy645-0600Reporting (DIREP)

Army Master Data File645-0569(AMDF)

AMDF Freight Segment 645-0593AMDF Packaging

645-0593Segment

AMDF Price Surcharge 645-0791

AMDF Statistics 645-9037

AMDF Extract Requests 645-8333

AMDF Interrogation and645-0583Retrieval System (AIRS)

Army Total Asset645-9777Visibility

Army War Reserves 645-9591Army Cataloging Policy 645-0597

Asset Force 897-2427/Information (AFI) 2425/2432

Automated Products645-8334Distribution

Automatic Return Items645-0583List (ARIL)

Product DS

Authorized Stockage645-8List (ASL)

Commodity Command645-0Standard System (CCSS)

Consumable Item645-0Transfer (CIT)

Continuing Balance897-242SystemExpanded

(CBS-X)

CBS-X Rec onciliation/ 89Compatibility 243

CBS-X Transaction 897Team 2443/

DA Mas ter Proj ec t Codes 89

Defense Inactive Item645-0Program (DIIP)

Depot Workload645-0Forecasting System

Distribution Execution 89System (DES) 2449

End Item Code (EIC) 645

some of thephone numbers for

the logistics support activity's asset visibility

center-- formerly the

major item center--havechanged . now when youneed information ,

call. . .


42/44

PS 554 60 JAN 99

QDRs . . .

ou can file your taxes on-line, sowhy not file Quality Deficiency Re-ports on-line, too?

Thats just what the folks at the ArmyElectronic Product Support at TACOM-ACALA have made possible.

Youll need Internet access and aWorld Wide Web browser, such asNetscape Navigator or MicrosoftInternet Explorer.

Point your browser to:http://aeps.ria.army.mil

This is a password-protected site, soyou must obtain a login ID and pass-word. To do so, simply click on theAccess Request Form . Answer thequestions and click on Submit Formto create your user name and password.

From the home page, click on theSSN logo. Enter your user name andpassword. Select On-line Forms &DESEX Requisitions from the list.

Scroll down to the Quality Defi-ciency Reporting section and selectQDR Entry Form . Then fill in theblocks and click on Submit Form .


43/44

New M40/M42 HoodThe one-piece hood for the M40- and M42-series masks is being phased out. Whenan old hood needs replacing, order thequick-doff hood, NSN 4240-01-376-3152,and a universal second skin. The skincomes in two sizes: small, NSN 4240-01-

413-1540, and medium/large, NSN 4240-01-413-1543. Instructions for using the newhood are in the -10 manuals for the M40and M42 masks. The new hood lets soldiersbe deconned without taking off their masks.

Chemical Defense WebsiteThe Soldier Support and Biological andChemical Command (SSBCCOM) hasestablished a chemical defense equipmentweb site as part of the Army ElectronicProduct Support web site at:

http://aeps.ria.army.milThe site provides chemical equipmentNSNs, item descriptions, and hyperlinksto equipment specialists andmanufacturers. Click first on LOGISTICSUPPORT and then CHEMICAL DEFENSEEQUIPMENT.

Black Hawk Gasket PurgedUse NSN 5330-01-414-9436 to get the startergasket for your Black Hawks auxiliarypower unit. The old one, NSN 5330-00-237-5653, is being purged from the systembecause its made of asbestos. The gasketis Item 4 in Fig 138 of TM 1-1520-237-23P-4.

M88A1 Heat DiversionPage 20 of PS 551 rightly said that tiltingthe oil reservoir access plate will deflecthot air from the personnel heater. That

sends the heat under the floor plates andkeeps the whole vehicle warm. Just makesure you move the portable fireextinguisher near the right side airparticulate filter first. If the extinguishergets too hot, it could discharge.

Compressor FilterNSN 2940-01-186-0592 gets the oil filterelement and packing for the 250-CFMcompressor shown in Fig 74 of TM 5-4310-452-24P. The gasket is available separatelywith NSN 5330-01-207-7381.

AN/PVS-7 Lens CapThe protective cap for the lens on allmodels of AN/PVS-7 night vision goggles

was left out of the TMs. Get the cap youneed with NSN 5585-01-397-6608.

anyresolutions ,

connie?

just to keep

on spreadingthe goodpm word .


44/44

YOU'RESTUCK WITH

ME NOW,PAL!

Documents

The Preventive Maintenance Monthly, Issue 554