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Front Cover Main Page 1 Page 2-3 Page 4 Page 5 Page 6 Page 7 Page 8-9 Page 10-11 Page 12-13 Page 14 Page 15 Page 16-17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32-33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40-41 Page 42-43 Page 44 Page 45 Page 46 Page 47 Page 48-49 Page 50-51 Page 52-53 Page 54-55 Page 56-57 Page 58 Page 59 Page 60 Page 61 Page 62-63 Page 64 Page 65 Back Cover Page 66 |
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; cf-\ d~~Sk3~irWl Nt' ~I1 I"~ G-N / A' //l E PRIVENT IVE MAINTENANCE MONTHLY Isl ue No 191 1968 Series IN THIS ISSUE COMMUNICATIONS 2-9 Tube Talk 2 3 Pler Tip T.524 Cover 4 IA-182? U 6 AN/IOC-106 4 non Ground 1 MAUS U 5 ANIMPOIOS llch 7 [arphlonePoop 5 MX1039/GFi Bt GROUND MOBIUTY 10-21 Dipslkc Fix 1011 Tallaer M Nurranes 18 Tank Slir Sav 12-13 Multifuel Caps 11 Mll9Piscoe 1 Tire Ge, Hose 11 MU4 Track La 14 Clol Clamp 11 uel Tnk 15 Battea rps 2521 WalerPPipLube 16 Pulley Poop 21 Tralmir Lsp 17 .- - COMMUNICATIONS KUN OR YER LIFE! ;OO'BYE HOLD IT, TUBIE, THE TM IS ON OUR SIPE. r AGE ALONE DOESN'T 1 HURT A TUBE. AS LONG AS IT'S DOING ITS JOB, LEAVE IT IN... UNLESS THE TM CALLS FOR A PERIOPIC h CHANGE. a WITH ELECTRON TUBES EIEo~l ~s~rbJ i^ r ~A; Y'BETTER HURRY, GRANMAW, THIS BIKINI'S ONLY POIN' HALF- THE- JOB. Dear Halt-Mast, Is there in the supply system a zippered canvas cover for the RT-524 receiver-trans- mitter? Only ones I've ever seen were homemade. SP5 R. L. Dear Specialist R. L., You bet... it's the CW-653 cover. It's on page 260 of SC 5820-IL-1 (Oct 66), under FSN 5820-082-3741. The cover's also used for the RT-246 and AN/ GRC-125 and AN/VRC-53 radio sets. One thing, though... it's bad business to use the covers in buttoned up vehicles like tanks, or in places with high humidity and temperatures. The covers mess up the air flow, and the heat that builds up in the radios can mean circuitry troubles. Same sort of thing happens when you stuff rags, clothes and the like behind common gear to get them out of the way. iim-' ^i KEEP THE /COVER NICE 'N' NOISE BLANKER BLANK NO NOISE BLANKER ON YOUR AN/GRC- 106? IT'S BEEN BLANKED FROM SETS SERIALLY NUMBERED FROM NO. 221 ON ORPER FR- 36- 039-1-6- 31886 (E). KI OKAY, FOIKS'.r TOD"Y W I 0 D~~ISCUSS4 ~ T3 Lh CARAYING THE f-/ GOED OSCJOUCOSP! "lilt T GETTING AN EAR LEGGO, C BIG APE, YA RIP THEM OFF AND WE GOTTA SALVAGE THE WHOLE COTTON- PICKING ' SCOPE! Trying to listen through loose flopping earphones can rub you the wrong way and make for a headset headache. Sure, you can botch your headset. You can grab it by the earphones and heavyhand it as you spread them, like when you're getting set to put 'em on. Be careful not to put a permanent kink in that spring- metal headband. This will keep right on weakening and nix the headband's future. Also, rough handling could strain the connection be- tween the headband and the receiver element, and soon call for a replacement receiver housing. The right way to handle your headset or headset- microphone is to place your hands .. gently, o'course around both the headband and the earphones, then spread the earphones apart. Easy, like so ... That should do the job. HANDY HANDLE HUGGERS You needn't be shocked by those bare-bottomed TL-13A pliers ... like you'll find in the TE-33 tool equipment. TRY JUST LIBERATE ABOUT SLIP RUBBER 3/2 INCHES OF 'EM ON . PANT5 RUBBER TUBE FROM AND THE MESS HALL'S YOU'RE EMPTY MILK PROTECTED CONTAINERS... The tube doesn't cost a cent... it's easy to install ... and you get a nice hunk of hand comfort, besides all the insulation. PUT THE SHIELDS WHERE YOU CAN GET S 'EM AGAIN! Getting' the hots in your signal equipment can sure put a kink in communications. REMOVE Take the TA-182/U telegraph-telephone signal converter. THE SHIELUSI Too much heat will knock the ting-a-ling out of the ringer by shortening the life of electron tubes and rectifiers. When it's so hot you can't count the sweat beads on your head, do this before putting' power to the equipment. Open up the TA-182 and remove the tube shields from the V2, V5 and V6 tubes and V7 and V8 rectifiers. If V7 and V8 are solid state rectifiers, then do not remove the shields. This'll give the converter a breather and keep 'er in business. O'course, hang on to the shields and put 'em in a safe place so they can be reinstalled when you're not operating. They protect the tubes when you're on the move. DOUBLE UP FOR SAFETY Do you want to hear a real shocker? Some AN/MSS-3 Xenon searchlight operator-type never noticed his ground cable was wearing away or was broken. The way to get around this half-safe situation when the searchlight's tied in with your M151 truck is double up on the ground cable. A r Get a 1/2-in wide braided wire, about 2 1/2-ft long, or as long as the present ground cable, from your main- tenance support. Connect one end of the braided wire to the ground terminal on the search- light's mount base in the vehicle. Connect the other end to the bolt on the right side of the control box power cable connector on the lower mounting bracket. ON AN/MPQ-1O() SWITCH WHICH SWITCH? A big package with a lotta power can help put a silence on a cannon roar or a mortar flump ... that is, if its power is up to snuff. One thing you've gotta be extra care-... FF TO OFF ful about with that AN/MPQ-10() radar set is the order in which you flip switch is turned OFF on the PP-747. the switches. A switcheroo of the switch turn-off Like in the PP-747 keyer power sup- can burn up the PP-747. ply ... Make sure the transmitter switch 0' course, your best bet's to follow is turned OFF in the IP-177 azimuth- the steps for normal radar set shutdown range indicator before the ON-OFF in Para 79 of TM 11-1303 (Jun 54). 7 MK-1039/G .-. WHAT KIND OF HEADSET MICROPHONE KIT DO YOU HAVE IN YOUR COMBAT VEHICLE CREWMAN'S HELMET? If it's one of the MK-525/G or MK-526/G sets, you're OK and one up. But if it's one of the early model MK-1039/G jobs, here're a couple of field fixes that'll make it even better than ever. FIX No. 1- The JJ-055 plug at the end of your mike cord is a little too weak for the work it has to do. It can't take too much shock and vibration, particularly at cold temperatures. A wedge kit to beef up this plug is now in supply under FSN 5935-G38-9899. Ask your supply man to get one for you. The kit's stocked at Atlanta Army Depot, ATTN: AMXAT-Q, Forrest Park, Georgia 30050, Sacramento Army Depot, ATTN: AMXSA-Q, Sacramento, California 95813 and 1st Logistical Com- mand, if you happen to be in Southeast Asia. When you get the wedge kit you ask your unit's common man to put it on for )ou. You could even do it ourself. All it takes is a little screw driver or a pen-knife. S MEANWHILE, BE ESPECIALLY CAREFUL NOT TO PUT ANY EXTRA S TRAIN ON THE JJ-055 PLUG UNTIL YOU . @ GET IT BEEFED UP!! ~ppAMOS FIX No. 2 -Heavy rains (South- Using fungus and moisture re- east Asia is famous for 'em) can sistant varnish MIL-V-173, he will short out terminals in your switch paint all 6 terminal screw connect- if the waterproof coating has been ors and the exposed metal surface cracked on two terminal screws of each connector. Order this var- that are side by side. nish in quart containers under Instead of going where it should, the current jumps between the screws. When this happens both radio transmission and intercom T WATERPROOF Scan be completely blacked out. COAT THIS - The original waterproof coating AREA Sets cracked when somebody tight- ens the scre% terminals or takes off/ /' I the switch assembly and plans around with it. Get %our unit's radio repairman to waterproof these terminals it you are getting shorts or if uou think the waterproof coating has either FSN i9"0.683-429" or FSN been cracked. 59"0-548-Q520. He'll do this by taking the whole After the garnishh is completely - MK-1039/G out of the helmet. and dr% the MK-1039/G can go back thoroughly during the terminal in the helmet again. Be careful not strip and surrounding area. to crack the aterproof coating. ti if. GROUND MOBILITY F,~Z .s OK, now that you have the F in )our hot mitts-here's how to update )our old dipstick. NY Ir" loal mu..-, I gr.;r FSN 6680- 754-4112, has the part number 10934383 marked on one side and FULL ADD OIL and CHECK OIL AT O PRESSURE on the other side. If you have it, shake hands with yourself because you're lucky. It's OK. " YOU MAY HAVE THE EARLY MOPEL OR THE LATE MODEL GA6E 50 CHECK IT AND SEE... .! ,.,.. I FSN 2520- 565-3256, will have 8744849 on one side and FULL AT 0 PRES- SURE and FULL AFTER PUMP- ING on the other. If you have it, get our )our trust)' Metal Stamping Die Set FSN 5110-289-0007 (it's part of Automotive Maintenance Tool Kit No. 2, Common, FSN 4910-754-0650) and unlimber the letter F. THE WORDS ATO PRESSURE SHOULD REMAIN VISIBLE! Once iou hase the old dipstick gage updated, you can check the oil level the same nwa whether you ha\e the old gage or the new. This is how you doit- 1. h 1 i ... : i Il.. ..i ,,. 3. Relieve the oil pressure in the system until ,,, r the accumulator pressure gage drops to zero PSI. Do this by holding down the S0 power solenoid plunger while you move ON the gunner's control handles left or right until the eace reds 0. 4 0 .. ,, i .. I i .. sl.. I .. *' ".l. ,h ,,J ,'[ [ I t 0 1' i I 1 . uF '' , 5*~~ i MaB~rk alie3/ nc aoe h fL // -'"4c~ jc~ WELL FOR, ONE THING, YOU CAN BEND THE LIFTING EYES ) AND CRACK THE LEFT AND RIGHT FRONT CYLINDERS, BEFORE REMOVING A POWER PACK, REAP UP ON THE THINGS TO WATCH FOR IN YOUR VEHICLE'S -20 TM, For M60 series tanks read pages 2-183 to 2-198. For the M728 CEV the info is on pages 2-181 to 2-194A, and for the M48A3 on pages 2-175 to 2-186. A lot of good power packs have been S banged up and damaged because of sloppy and careless handling. Make sure your sling is OK with cables of equal length, beams not bent and no home-made rigging used such Sas chains in place of cables. FOR REMOVING COVER.. HOIST HOOK .I 'Ot U ,i ,. In .- Il 1... ...f i 1 .... lowand Ilic [ROINf o iiiL ,d dII. Wie;n uu pull the engine use it backwards and you'll end up with bent 'fil1 eyes. MAKE SURE THE T-BAR FACES FRONT OF VEHICLE CUPOLA SPRING FSN Dear Half-Mast, Hov spring , scope I ~:~ dc.II Dear Specialist D. M., You can't. It's a direct support job. using Spring assembly. FSN 1240-910-8053 IP/N 10516632), which replaced Spring, FSN 1240- 991-8-430 (P/N 86196(11s. I lii s\ , P! ----, _-~---- M114/M114AI TRACK LIFE Dear Half-Mast, In PS 182 on page 46 you said late model track FSN 2530-955-9448 with the ven- dor mark SP and the year mark 64 or 65 had a safe track life of 1,500 miles. This is good to know, but my track has vendor mark SP with year marks 66 or 67. What is its safe life? LT K.F.M. Dear Lieutenant K.F.M., G600 QUESTION SIR, THE ANSWER Is 2,500 MILES! ' ..... ALL LATE MODEL M114 OR M114A1 TRACK, FSN 2530-955-9448 (4 BOLTS OR RIVETS) REGARDLESS OF ITS VENDOR MARK k IS A 2,500 MILE TRACK EXCEPT IF IT HAS VENDOR MARK SP AND YEAR MARK '64 OR '65- THEN, IT'S ONLY GOOD FOR 1,500 MILES. 'l POW" """,I MO, f'W o -' A / ,'* " Early model track FSN 2530-475-1300 (with 6 bolts or rivets) is good for 1,000 miles. TM 9-2320-224-ESC (Apr 68) has the word. 14 I All equipment with diesel or multi- fuel engines should have their fuel cells (or tanks) drained empty at least once a year-oftener in wet places like Southeast Asia. Do the job like it tells you in the -10 TM for your equipment or engine but if both the left and right fuel cells or tanks have drain plugs, pull 'em both. Some cells/tanks have a petcock, some have socket-head drain plugs, some have square-head plugs, and some have no bottom drain at all. In this last case instructions for draining will be in your TM. Get most of the fuel out of the cells/ tanks before you open the drains. Transfer the fuel to empty 'containers with the hand fuel pump, but cover the fuel filler opening around the hose with a clean cloth if there's any chance of sand, dust or water getting in the fuel cells/tanks. Fuel gets contaminated by water formed by condensation of moisture in the air and by dirt that gets in during fuel loading and storage operations. In fuel injection engines the return of heated fuel to the cell causes added condensation. The cleaner you can keep the fuel the better your engine will perform and the less chance you'll have of engine failure. Between drainings on equipment like an M60 tank, you keep on with your regular routine of drawing off condensate with your hand pump as your -10 TM shows you. SOCKET-HEAD DRAIN PLUG 4 Wil *' : I w I U- Hot news for hot pumps! Now your M37B1 3/4-ton truck (or other G741-series vehicle) gets Grease, Aircraft and Instrument, for its water pump. This switch from GAA is in the newest LO 9-2320-212-12. Better known as GIA (MIL-G- 23827), this new lube for your pump has an "efficient temperature range" of -65-F all the way up to 2500 F. (Now do you hear your pump bearings heavin' a big sigh of relief?) GIA is listed in Fed Cat C9100 (Sep 67) under a half-dozen FSN's for dif- ferent size containers, but the ones you're most interested in are: FSN 9150-985-7246 (1-lb can) FSN 9150-985-7247 (5-lb can) FSN 9150-985-7248 (35-lb pail) New production vehicles come with the GIA already in the water pump. You just refill with GIA when it's needed. H"I I IR i%, . Now )ou should be kissing off those water pump troubles you've been hav- ing--if you give the GIA a chance to do its job. I Natch, when you've screwed the cap all the way down, you put in a new load of GIA, Remember, there're no longer any repair parts for this pump. When she gives out, all you can do is replace 'er with a new pump-FSN 2930-632- 4048, listed in your TM 9-2320-212- 20P (Feb 60). STAND ON You need a leg under the tail end of your 3/4-ton or 1 1/2-ton trailer if you're cartin' around a hefty hunk of mounted equipment. Maybe yours is a generator, pump, radar set or fuel-dispensing outfit. There're 2 different legs kickin' around. They're not much different, though, and both do exactly the same job. One leg was put on 1 1/2-ton M104-series and M105-series trailers by MWO 9-2330-213-30/3 w/Ch 2. The MWO's been rescinded, but the dope'll be coming' out in a TM 9-2330-213-14 revision. The other leg is in TM 5-6115-365-15 (May 66) for a whole bunch of trailer- mounted generator sets. It's Leg Prop Assy, FSN 2590-318-6691. There're re- placement parts listed there, too. The TM authorizes this leg for both 3/4-ton and 1 1/2-ton trailers with the mounted equipment specified. Parts for the MWO-installed support leg are in TM 9-2330-213-14 (Jan 64). Those "non-supply items" you see on page 159 now have FSN's and're avail- able in the supply system like so: .5, Even with a support leg you don't w -you might wind up with the whole M/4-Ton Trailer... LEG WATCHED Keep an eye on your M101A1 3/4- ton trailer's landing leg. There've been some cases of the bracket bustin' and dropping' the front end of the trailer: Check it for cracks. Got a bad one? Get a new one-Bracket, FSN 2530-733- 9353, in TM 9-2330-202-14P (Aug 62). \\ PIN W/CHAIN rant to be parking' your trailer on a slope e works in your lap. R iF YOU BEEN WONDER HOW T f >CONVER THOSE X D NEW NUMBER OD NEW FOR YOU M104 M104 H(IY M~' M104AI 6754 SERI 1 M105A1 TO \05E2 M1O5AI M NUMBER 0 AO-5-3 M105A] HERE'S gl0553 RUN[ OWH XM106E M106 RU XMIO6E1 M106A1 XMIO6E2 M106A1 XMI07EI M107A1 SXMO107E2 M107A1 FSN's for the new data plates and mounting screws are on page 157, TMV 2330-213-14 (Jan 64). CAPS FOR MULTIFUELS There're 2 different oil filler caps for those 2-1/2- CAP, FSN 2815-899-5219 ton and 5-ton multifuel engine trucks. Which cap you've got depends on which cylinder head cover's on your engine. Cap, FSN 2815-899-5219, goes with cover, PN 10899131, found on the LDS 427-2 and early LDS 465-1. Cap, FSN 2815-999-5410, fits the newer cover, PN 10951262, usually on the LD 465-1 and LDS 465-1A and also on later LDS 465-1 en- gines. You can tell the newer cylinder head cover by the shorter filler neck. (CP, KS 281-999-410 r9- 21/2-, 5-, 10-TON TRUCKS... ,/- \ GAGE, HOSE SEPARATE They're 2 separate items-the tire inflation hose and gage in your truck's OEM. This goes for G742-Series and G749-Series 2-1/2-ton trucks, G744-Series 5-ton trucks and G792- Series 10-ton trucks. That hose FSN is already in ORD 7 SNL G-749 (Apr 57) but it's listed only for the M221 truck tractor. There's no use trying to get the old hose-and-gage assembly, either FSN 4910-789-0452 or FSN 4910-777-2943. Your requisition will just be canceled. 827- 6045 I ( 1095F406) / i;?' C-C-CLAMP ILL GET B-B-BUSTING? N-NEw A O-ONE!" Vibration is blamed for bustin' the preheater coil clamp on a lot of G742- -V series 2-1/2-ton and G744-series 5-ton multifuel engine trucks. This's because the old-type clamp (PN 10899103) can't take the gaff. So if yours gives out, your support can replace it with the new damp. o ;. Jl INLAORGAE- SN490-04257,lite i S 'BOUT THAT DAMP CONCRETE... BATTERIES AND O YoU LADDERS 00,e o MEAN Let's settle it right now- CAN RUIN 1. You are not in for a run of bad A BATTERY luck if you walk under a ladder, and... 2. There's no mysterious chemical or magic in concrete that'll discharge a storage battery. / But you could have an accident walking under a ladder. What if someone working up on the ladder dropped a load of bricks? So it's a good idea to check before walking under a ladder. And a battery standing on concrete could discharge. Concrete is usually cooler than the air above it because of the ground under it. This makes moisture in the air condense on the concrete. Now you take a battery that's dirty and has electrolyte slopped all over it. Set it on damp concrete. Sure it'll discharge! And spilled electrolyte won't do the concrete any good either. A battery will discharge anywhere if you give it long enough. A sorry, neglected battery will fade faster. So the best her is: Sloppy handling is what runs down batteries. 20 =K0111111 TIPS ON BATTERIES Starting your tracked vehicle, 'specially in cold weather, takes a lot of zip out of your batteries. So after starting the engine or after running an electrically operated turret, make sure your engine is kept going long enough to put back the electrical charge you took out of the battery-half an hour should do it. Trying to start a vehicle with weak batteries can make your starter relay chat- ter. If this happens you may get arcing that will burn the points. With weak batteries you may have to crank the engine too long to get it started. This is no good, either, because your starter can get so hot it will seize up. Weak batteries can ruin other parts of your electrical system, so keep 'em charged up. You got a beat-up, battered or busted pulley-in your G741-series 3/4-ton truck 100-amp generating system? Here're replacements for those 4-groove pulleys you got in the kit, FSN 2920- 562-0414, under MWO ORD G741-W12 (superseded by C3, Jan 68, TM 9- 8031-2 and C2, Jan 68, ORD-8 SNL G-741). Pulley, fan dive and crank- shiat, FSN 2805-517-0835, in Fed Cut (280541-A (Apr 671- a0o inOD 8..SNL 6741 Jan 57) under ,'Army N 8699737. Pg.,y,,Ju W reanit water pump, F58 ~30-200-1395, jnORD SNL , 6-.1 TAPING'S TOO RISKY Dear Half-Mast, Some guys in our company tape 3 loaded magazines together like this when they head into action. They claim it gives 'em more instant firepower for their MF6AI rjfles Do you th,nf l Is a good idv-7As-1-e Dear Specialist L. O. F., No... much too risk.! Here's wh : --AL -7/ _- The best way's still the one in your FM 23-9. Keep your spare magazines in )our pouch and whip 'em out and into your weapon as you need 'em. The pouch'll protect the mags and the ammo and you won't be putting a strain on )our weapon. Yep, "fighting's" the word. You only use these new plastic protective caps (FSN 5340- 880--'666) when you're in action ... not when your shooter's put up for a day or more. Else condensation'll build up and ruin the bore. The cap'll keep out rain, dust and dirt, but it won't keep s arer from seeping into the bore from the chamber end when your rifle gets dunked. This water's got to be removed before you try to fire. HERE'S WHAT YOU DO!... AFTER YOU REMOVE THE CAP. POINT THE CHARGING PRESS FORWARD MUZZLE HANDLE SLIGHTLY ASSIST TO DOWN... REARWARD SEAT ROUND So get with that routine in para 2-11 to your new -12 TM before you fire off. Make sure the drain hole in your butt stock cap screw is not plugged when you drain the bore. It's OK to fire right through the cap if you don't have time to remove it first, but never put a cap on a hot weapon. The plastic will go soft and get into the flash suppressor grooves and will be hard to get off. 23 Good, But Watch It! MAGGIE IN A BAGGIE . It's real smart to use a plastic bag (FSN 1005-052-6942) to protect your M16Al's loaded magazine from dirt, dust, rain and the like--but watch one thing! The bag's apt to collect water con- densation on the inside, and this could result in feeding wet ammo to your weapon and rusting the magazine spring. Every day at least, take the bag off, remove the magazine and take out all the cartridges. Wipe off each item- including every round-with a clean dry rag. Turn the bag inside out for a thorough drying job. Then put 'em all back. This'll do it. You can use the same bag over and over, as long as it stays healthy. Because of the condensation, it's not smart to store empty mags in these bags. Incidentally, there's a little trick to opening a new bag in a hurry. Grab the top corner with your fingers or teeth and yank. It should separate along the dotted tear line. A slow tug will only stretch it. MOONLIGHTING? The lens cover for your AN/PVS-2 Starlight Scope has been known to reflect moonlight-and that tell-tale light can give away your position. When you near your mission location, slip the lens cover into your pocket. The recessed lens is less likely to reflect light. 2" x 5' x 24" PLYWOOD F3" 24" FLAT IRON (3) 1" x 6" x X6" DIA ROUND HEAD BOLTS (6) '2" DIA HOLES SLOTS FOR BUTT PLATE CUT AT 30 ANGLE 1/4' DUA WAY IS BEST WAY WOULD 'yOU EBELIF-VE Sure, it'd be nice to have a loss-proof muzzle stabilizer on your MI4AI rifle. But till they come up with one, the best you can do is to make sure your present one won't work loose. This means putting the stabilizer on the right way. HEAD OF RETlliiliC CPlW i- First... run the lock nut up against the head of the retaining screw. Then put the stabilizer over the flash suppressor and slip the yoke assembly over the bayonet stud. V-SLOT IN BAYONET STUD (LUG) Next... use your fingers to turn the retaining screw so that the tapered stud at the end of it goes into the V-slot in the bayonet stud. Tighten the retaining screw with your combination tool. LOCK-NUT TIGHT AGAINST YOKE Push up and down on the yoke assembly to make sure it has no give. If it's not loose, you've done everything right so far. Now you can tighten- real good -the lock nut against the yoke. This keeps the retain- ing screw from coming loose during firing. M60 AMMO RACK PADS Stop sweating out the chance of a loose primer falling through the drain hole in your M60-series tank's ready rack mat and blasting off on the battery terminal. Tip your mechanic to hex-removing MWO 9-2350-215-20/32 (18 Dec 67). Now he can make a new set of rubber mats with 4 holes instead of the one big one. The modification's for M60 tanks with serial numbers from 5 through 2209 and M60A1's from 2210 through 4379. w ... I.. ,.na. i... 1N .s'I Mu *ILu u. 4U. l.S. L~.j QRL- E fT KEEPS, CLO LTWHY? THE ACTION FOR STORPRING OR FOR S 101111INHAMMER SPRING You'd be smart to obey this unwrit- ROM ten law: Always put your rifle or car- A SETF bian in the arms rack or your machine gun on the shelf with the bolt closed uncocked. CHROME OFF IT Mr. M14-series armorer... this is for you. Any time you put a chromed firing pin in the bolt and it binds just forward of the shoulder of the tang (because of chrome build-up) try this: Fire the rifle a couple of times-dry or live. Or work the firing pin in and out of the bolt by hand a time or three. If one of those deals doesn't stop the binding, a new firing pin is the answer. 27 *^ b C-1- - L17 r~ Lz7 T hi uI. sol cad dstf of roint pub. ol ..rereT s o orgaon.. .oona mon"o- ma peio.nnel the r s c ron.led from re-no AG D.sr.butlon Cseptrs Bulsai. For roampla dailb see DA Pasn 11-. Ch 5 I b 681. FMI. 1b1. enfc DA fPt JI306. Ch 3 lApr 68l. SC'I and SMt, DA Pa 310.7 (Api 681. MtVOL TECHNICAL MANUALS IM 3 1040-214-12 C4, ApI. M3 D.u'rs,' TM S-200. Apr Camo nsag Net Sets TM S-2420-)18-15. May. Trador Whid DED W,'Bahucoe and Fronm loader TM S-3610-773-12. Jun. Oltfl Plaot. alhar and Cop.r TM 5-31O-1033-ESC. May. 5-Ton DiD Wnel Mid COne. Anl Irnt WlBill da r, Blade. .4 Il Crane Booc Hanlon Mch Mdl H446. rM S-3820-205-10/1 C., Jdn. roll Craael Po CRhM DFD 3I Top Per Hr Cop a irdile, Mid IM S-3820-23-12/2. Jan. cdaher crenlnq Un.I 35 lon Per Hi Cup S.n oin'le> Mid DOD TM 5J3895-727212 Ch I. Ji. 10 .29 HP M 5. Ga, inglns. TM 5-3895-273-17 CI. Jdn. 10-20 hP sGae ng TM 5-4320-222-1 2 C. lun. Cenrrl-gal PulpsI TM 5-4610-202-12 CS, Jun. Waltr Purnlahlon Unll TM 5-4930-217-14, May. Lubricating and Servicing Unit Power Operated Trailer Mtd 23 CFM Camp Recip Gas Dr-n. TM 5-6125-200-15, May, 60 KW Motor Generaoors. TM 5-6665-200-12, Jun, Land Mine Detecting. TM 5-6675-214-15P, Jun, Mapping and Surveying Equip. TM 9-1005-223-20 C3, Jun. M14 M14A1 Rifles. TM 9-1010-202-20P, May, 57-MM MIBAI Rifle. TM 9-1015-215-12 C2, Jun, M30 4.2 Inch Mortar. TM 9-1025-200-12 C2, Jun. M114Al MI23A1 155-MM Howitzer. TM 9-1410-250-15P/2/1, Jun, Nike-Herc. TM 9-1430-513-12/2 C3, Jun. Hawk. TM 9-2300-224-10/2/1 C7, Jun, Ml 13AI Carrier Family. TM 9-2300-257-ESC/5, Apr, M125A1 Mortar Carrier. TM 9-2320-206-10 C1, Jun, G792- teries 10-Ton Truck. TM 9-2320-21 -20P, Apr, M15 Truck and M718 Ambulance. TM 9-2350-201-12 Cll, Jun. M41 Tank Series. TM 9-2350-215-10 C4, May, M60/M60A1 Tank. TM 9-7022 C17, Jun. M48A2C Tank. TM 9-7218 C9, Jun, M42 M42AI Twin 40-MM AA SP Gun. TM 9-8030 C9, Jun. G741-series %-Ton Truck. TM 10-500-16, May, Airdrop Load Data. TM 10-1101 C5, May, Petroleum Handling. TM 10-4320-202-15, May, Pumping Assy Flammable Liquid Bulk Transfer 50 GPM. TM 11-5895-464-15, Apr. AN/MSC- 32A Central Commuunicction Operations. TM 11-6625-358-15, Jun, Signal Generators. TM 11-6625-457-15, May, TS-710A/ TSM Crystal Unit Quortz Test Set. TM 11-6625-1666-15, May. TS- 2609/U Radio Frequency Power Test Set. TM 11-6625-1730-12, May, AN/GSM. 206 Radio Data Set Test Set and AN/GSM-207 Antenna Orientation Set. TM 11-6720-236-12,Jun, KA-76A Still Picture Camera. TM 750-16 C1, Jon 105-MM M101 M101AI XMI02 155-MM M14A1 M123A1 Howiters. MISCELLANEOUS DA Pam 750-30, Jun, M16A1 Rifle Operation and PM. LO 5-2805-213-12, May, 14 HP Gas Engine. LO 5-3610-229-12-2, May, Webb-Fed Offset Printing Press. LO 5-4610-221-12, Jul. 1500 OPH Water Purification Unit Van Mid Elec Drvn /20 to 2 HP. LO 9-1450-500-12/1 & -12/2, Jun. Hawk -Loader-Tra nportr. LO 9-2300-224-12/2/7, May, M548 Cargo Carrier. TB 5-6100-201-15, Jun, Elec Gen Equip. TB 9-4940-325-30, Jul, Shop Equip Contact Installotion in M151. I NEEDED 7.o 9e 290M 7i t Seeded All users of 290M tractors calling all 290M jockeys: Report every air filter cartridge failure you get fastest. The top shop thinks those cores, FSN 2940-968-1794, that bust up are wrecking piles of engines. But what's needed is the hot word from you. There're hundreds of engines at $8,000 each going blam. Your EIR's could help stop it. And if filters do go blooey, change 'em suddenly even if it means one every hour. Then send the info surest got it? THE'SECRET' OF THE EIR OR HOW TO MAKE 'EM \ P/ WORK FOR YOU ANOTHER YEAH, HEY MCFARR, FAULTY FRAMMIS! HOW ABOUT AN EIR? WHEN ARE j MAN, I HEAR YOU THEY GONNA USTA GET REAL ISSUE BETTER ACTION!! ONE5.?! YEAH, 50 HOW COME WE GOT NO ACTION THIS TIME? BUT, MAN, I SENT IN AN EIR ON THAT ITEM LAST FALL... WHAT MORE CAN I DO? E National Maintenance Point /HELLO, MCFARR. WH) THE LOW? /MY BUDPPES HAVE BEEN PUTTING ME DOWN! ...NO ACTION ON MY LAST E/R... j6r^ B OUTFIT'S BEEN PLAGUED YOUR PA FORM P 1 I WITH FAULTY 2407 PROPERLY? LIKE I FRAMISSES FOR SHOULD, ALMOST A YEAR... CONNIE OVER A DOZEN IN ALL! GIVE THE PROPER YES... TOLD 'EM WHO WE ARE CLEARLY DOPE ON THE SHOWED WHAT EQUIPMENT dAVE UPPER PART OF CORRECT NOMENCLATURE, FSN THE FORM ? AND FILLED IN ALL THE BLOCKS THAT APPLY 80225 \\, |o/V dPO /0f t N ........... HOW ABOUT THE BOTTOM THAT WAS EASY.. I EXPLAINED OF THE FORM?? WHAT WAS WRONG.., SENT IN PICTURES, MADE A SKETCHJTOLV'EM WHAT 5HOULP BE IMPROVEM... THE WORKS! HOW EMERGENCY MEANS URGENT MIGHT ABOUT THE CONDITION OF THE BE A HA7ARPOUS THE 3 EQUIPMENT IS UNSAFE CONDITION THAT PRIORITIES AND WILL CAUSE SERIOUS COULD CAUSE FOR TROUBLE-LIKE HURT OR INJURY OR DAMAGE EIR's? KILL PEOPLE, DAMAGE PROPERTY. THEY EQUIPMENT OR GO AIR MAIL. NATkiNAL SECURITY . SEND IT IN BY TWX OR . PHONE. -' ... AND ROUTINE THERE'S A COVER LITTLE .MORE ALL YOU SHOULD OTHERS. KNOW. BEFORE I 60 FURTHER, LET'S HANG THIS PIN-UP %HERE IT'LL DO SOME GOOD. 31 When those frammisses fail one b4 one Here's how to be sure something's done: Stick like a leech, Send an EIR on each! That's the same wayl battles are won! ARMY NATION rMAINTENANE ,3^E407 A'1 I I' IF YOU WANT TO DISPLAY THIS CENTERPIECE ON YOUR BULLETIN BOARD, OPEN STAPLES, LIFT IT OUT AND PIN IT UP. If, l LNL ...1 SENT IN AN URGENT EIR, 5UGGESTEP THEY WELD INSTEAD OF BOLTING. THEY PUT OUT AN MWO RIGHT AWAY! AHA...THAT'5 WHERE?? WHERE YOUR IN THE PROBLEM IS! LABONZA? /aSE BUT ON THE FRAMMIS I'VE NOT SEEN ANY ACTION AT ALL' MEANTIME, WE'VE HAb 4 MORE 70 FAIL-- PLUS A MECHANIC BANGEP UP WHEN ONE FLEW APART AND HIT HIM ON THE b LASONZA! YOU SEND IN AN YOU MEAN IF IT HAPPENED THIS WEEK EIR TO COVER I SEND IN AN EIR...AND I SENP SIN ANOTHER ONE IF THE SAME EVERY FAILURE! THING HAPPENS NEXT WEEK OR THE WEEK AFTER? EXACTLY.' IN THAT WA, YEAAHH, THE DESIGN AND IF IT ENGINEERS AT HAPPEN THE ARMY NMP TO ME .., GET THE IT MAY BE MESSAGE HAPPENING LOUP AND TO OTHERS CLEAR! IF EVERY OUTFIT FIRED OFF AN EIR ON AN INCIDENT... THAT'S LIKE LOUD 'N' CLEAR!/ RIGHT! 1 THE NMP CAN ONLY WORK WITH FACTS CORRECTIVE ACTION IS BASED ON A WIPE, SERIOUS NEED...NOT JUST AN OCCASIONAL FAILURE! BE SURE THE I El EIR GOES TO THE ARMY NMP... NOT TO 50OE I LOTPER LAGENC.' w OK,OK, BUT HOW DO I -NEVER CHEC YOUR OUTrFIT KNOW WHEN THEY TAKE SEE ONE PUBS, MAN. MOSTARE ACTION...OR SEE THE FOLLOW ON PINPOINT RESULTS OF MY /THE EIR DISTRIBUTION. THE EIRS! DIGESTS DIGESTS LIST CASES ... THEY'RE CEIR SENT IN) FROM ALL PUBLISHED OVER THE QUARTERLY/ ARMY. NOT ONLY THAT BUT THEY SHOW YOU WHAT'S BEING DONE... GIVE YOU VALUABLE MAINTENANCE INFORMATION T rescinded) ... EACH ISSUE I g 0C E QUIP T GOOD FOR A YEAR.!! 1, -si LE-1 LES CONNIE, TB50- 921-1 KE C YOU MADE A NG TB 150.922-1 SERGEANT SMAN OF TB ME! iTB30-923-1 PERSHING TB150-924 HAWK Tg 750-925-1 AN/TSQ-51 TB 750-942-1 CHEMICAL EQUIPMENT TB 150-951- WEAPONS AIDTOOLS TB 750 91-1 GIENEEER 4D QUIATER- MASTER TYPE EQUIIPMNT 8 150 .9811 TAK AND AUTMOTIVE EQUIPMENT Bl 150-991 -i FIXED Wiug ._ *The last number of the TB tells you the quarter of the year it was published 1, -2, -3 or -4. 36 36 AIR MOBILITY SIt s MURPH!! HOW' YOU IUII'HeIots,' AT WORK .. br a INSTALL THOSE OILa .15 IT RESERVOIRS? HUEY HUB I POSSIBLE RE UBBED TO PUT 'EM IN RUBBED UPSIDE 0ow' YES THEN I / DIP IT/ It seems this Huey Delta (UH-ID) Murphymec installed the pillow block oil reservoirs, P/N 204-010-191-1, on his bird and added the covers. Filling the reservoirs with Mil-L-7808 oil is a bonafide built-in mainte- nance check, but when Murphymec added the amber stuff, not a drop got in- side one of 'em! It was installed upside down, and Murph didn't notice his boo- boo, which could have caused the bird to come unglued while airborne, or dead- lined her just when she was needed for a Hueyvac mission. WRONG INSTALLED WRONG .. Many aircraft parts are immune to Murphy's Law. And you have checks and by- the-book maintenance to help stamp out this pest. Use 'em. Hueybird mechanics know that gear box magnetic insert plugs get eyeballed every PMI, PE. Ole Pro types know the intermediate and tail rotor gear box electrical connectors are not indestruc- tible! ELECTRICAL CONNECTOR 42E GEAR A broken or cracked connector means an erratic signal--or none at all--to alert the pilot that an extra load of metal is hiding and riding in the gear oil. Here's a PM tip that will keep con- nectors in one piece. If the electrical wire is too short use a small open end fixed wrench to loosen the lock nut that holds the connector on the plug. This will allow the con- W7W"W- MAGNETIC 90 CHIP GEAR DETECTOR BOX ASeg&EtL Iu LOU -EN i) These connectors will break if you PLUG rLiI use 'em to pull out the chip detector plug or if the wire is too short or tight to allow for the one-quarter counter- nector to swing loose--but stay put. clockwise turn of the plug as it is re- You may have to use another wrench locking nut. No sweat. TO PIjEMOVE P1LUG Remember, you don't have to be a X brute to remove and check the insert plugs, and that heavy-handed treatment of the electrical connectors can down- time that Huey f-a-s-t! So, take it easy, huh? 38 J REMOVE BEARING, M MEASURE WEAR That's right, chopper caretakers. TM 55-1520-210-20PMP (26 Apr 68) says engine mount bearings get replaced if allowable play limits-0.006-in radial, 0.012-in axial-are exceeded. Same replacement poop applies to all Hueys. That excessive bearing play can be just a teenie-weenie bit-like maybe 0.001 inch--and hard to measure with tripod engine mount handshake. It's enough, tho, to cause the hydraulic lines to break, loosen, or leak--not to mention a gut rattling ride. And a birdman without hydraulic power boost is in for a maxi- size case of puckeritis. Maybe worse! So sharpen your peepers and use a gage to measure bearing play when pull- ing the 100-hr inspection. Ch 6 (22 Apr 68) to TM 55-1520-210-20 has the in- spection poop ... para 5-31. If you have to replace the bearings, let support do it! MINNIE IS AN M134 If your older aircraft armament subsystem pubs haven't caught up yet, don't let it throw you. The 7.62-MM High Rate 6-barrel Minnie-the GAU-2B/A- has now been classified as the M134 machine gun. 39 Au n Armn bird pilot uses his aircraft instruments to stay within operating limits -or to tell him if a drawstring situation is developing. Trouble starts when some maintenance birdkeepers get careless about marking instruments. If instrument marks are off just a wee bit, Ace-of-the-Base Aviator can oper- ate his bird in the danger zone without knowing it-until it's too late. Suppose he's Hueybirding in his Delta Darling to make life worth liv- INSTRUMENT MARKINGS... ing for a dozen grunts. If the exhaust gas temperature (EGT) gage marking is off as little as one tick mark, his engine would be operating 200C above S N ' the 640C safe limit. His bird's engine gets hotter'n a fire- cracker and perhaps... kerpow! If the lad makes his pad he's had a red face- BL L U and the bird gets a red X condition that 's, t-if.- calls for a hot-end inspection ASAP. X All birds--smooth-flow turbos or sweet trip recips-vibrate something fierce-like. Glass instrument covers come unglued and skitter around a bit. An ol' pro crewchief or mechanic checks 'em daily to see if they're OK. If they're not, he follows the guidelines in Chap 7 of the -10 Operator's Manual for the correct instrument markings-no messing with guessing-and then eye- balls the stick 'em-on poop in TM 55- 6600-200-20 (July 63). First choice is to paint on the mark- ings with lacquer, Fed Specs TT-L-32; alternate method is to use pressure sen- sitive tape. These paint stock numbers will get you a quart of the bright stuff, and the tape numbers get you 72 yards of 1/2-in wide sticky stuff. SA TICK EEM MARK'S I IMPORTANT... BE SURE THE RANGES ARE MARKED RIGHT... AND THE MATCH-UP MARKS ARE ALINED N (PAINT) COlOR FSN (TAPE) 8010-221-2775 i!ol, 7510-550-7125 8010-251-6503 Red 7510-550-7126 8010-257-5377 Wi 7510-550-7127 8010.257.5375 n 7510-550-7129 /C. 8010-663-3036 u 7510-634-3267 Don't forget to keep an eye on operating limit marks and those painted match-up marks that let you know before you go that your bird's instrument markings are sharp. man. s-h-a-r-p! 41 When it comes to keeping your Cay- use (OH-6A) in the fracas a little savvy goes a long way-the kind you get from eyeing the maintenance pubs plus some OJT. One of the "musts" when focusing on TM 55-1520-214-20 (7 Dec 6') is to follow the troubleshooting charts to the letter. It'll save you time and clboan grease. PTE . CHAPTER 5 TM SS-1520.214-20 SECTION II IWUICATIN OS T U p U LS CACORXECTVE ACTI -] N o Ir .1 ?l 1dO. I 1-S. HIGH OIL PPESSUPE"' Say, for example. )ou get a high en- gine oil pressure reading. Don't lower the pressure by adjusting the regulator valve-this will gise you low torque- meter readings. Chances are the salve is backed off 5-1/2 turns ahich is the right setting. Instead, follow the first s(ep in the chart which says to check out the gage and the oil pressure sender. You'll prob- ably find that the sender transmitting the pressure reading to the gage is shot. Replace this sealed unit and your oil pressure will read in the green. ./I \ j1,-I -. It" - -A*T ,, " L_1 Q G 0ORE> V I When the sun turns your operating area into a dust bowl you really get a chance to use your savvy. Take the engine air inlet filter. Sure, you have a differential pressure switch which sets off the by-pass air light-mean- ing the filter is dogged and the pilot has to pull the filter by pass door actuating cable release. 'Course, once the filter is cut out the engine will suck in the dirt like a vacuum cleaner when the bird comes in to roost. Under real dusty conditions you've got an engine change on your hands due to foreign object damage (FOD), sure 'nuff. What to do? Clean that filter daily before it gets so clogged with dirt that it has to be by-paqsed. Here's how: 01 -i 'i71 After cleaning, eye the filter for boles or breaks in the outer screen. No dam- age? You've got it made in the shade! Try to wash your bird every week with dean, cold water and mild soap. Removing grease will mean using dry-cleaning solvent, P.D-680 Type II, before your wash job. Just be sure none of the solvent gets on plastic surfaces, electrical connections and wiring damages 'em for real! During the rainy season try to eep your bird under cover. If you can't, a . tarp or canvas tied down over the rotor head goes a long way toward keeping parts dry. DRAIN The main rotor blade tie-down socks will hold . water, which could lead to corrosion on the blade tips. A simple solution? 45 SAVE THE DOORS CHOPPER B THOSE AST.S! .. . The wind whipped up ; o. STORE THE DOORS IN A by other choppers can have SAFE PLA(E USE OVERHEAD WIRE quite an effect on your position following a mis- sion the wind from a hovering Huey or Chinook a can yank them right off 7 I o the hinges! .. The wind blast from a ( larger chopper hovering ' close to a shut-down Cay- Susecan also damage the main rotor blades-'nuff said? A point or two when you fly a doors-off configuration. Try to find a place to store your doors where they won't get trampled or handled by moving from place to place ... a lot of doors get damaged in storage. When you do store crew and cargo compartment doors, be sure you plainly mark the tail number of the bird they came from, on the inside. Doors are replaceable but nor interchangeable. Any old door won't fir when it's time to put it back on your bird. KEEP YOUR INSULATION The insulation blankets across the . rear of the passenger compartment are there for a purpose-to dampen high- LE frequency sound so it won't have a IT BE! 1| 1 4 harmful effect on your ears./ A Sure. it takes 3 little more rime to remove those fiberglass sections to get at access doors. But this is time well spent if it saves your eardrums. Keep that insulation installed, man! The main transmission insulation is bonded to the cover and comes of as an assembly. The same insulation bonding set-up is used at the upper aft sections of the passenger compartment ... no problem wh ith i staying pur. QUICK REEASE PINS TIGHT? Changing main rotor blades on your Cayuse is a breeze with the quick-release pins. Just be sure the pins are seated with the washer fush and the bottom pin locked. A pin may hold if it's not fully seated but you'U WHEN REPLACING get extra wear on the pin and on the lead lag links ... QUICK RELEASE PIN... means early parts replacement. MAKE SURE I M /fWASHER .. FLUSH Yessir-e-e-e, little speedy needs tender lovin' care to stay in the pink-the kind that only your savvy can provide. 47 _,E::D A PRESSING PROBLEM OK... you make a press-to-test check on a launcher and section control in- dicator for one of your Nike-Hercules launchers to see whether the heater for the missile batteries is working. But no light from the heat monitor lamp. Maybe the lamp is shot... If the lamp is going to be given a chance to light, you need room between the lamp holder body and the lens as- sembly. You don't want the lens to bottom against the lamp holder panel nut before the lamp has a chance to go on. You make sure you have the needed space with a little give and take. Hold the lamp holder body... , ...and then adjust the front mounting nut a bit at a time until the light comes on as you make the press-to-test check. Then tighten the hex locknut. Now... make sure the DC power switch is OFF. Next, run a jumper wire between the JIG-13 and J72D-40 recep- tacles, the idea being to simulate below normal battery temperature so that the lamp will go on automatically. Turn on the DC power. Does the heat monitor lamp light? If not, make a stab at adjusting the front mounting nut again. Still no dice? It's time for a new heat monitor lamp. ON THE LEACKV ELJ JACK ASSEMBLY IN BEFORE RAISING OR LOWERING Are you looking to keep your Nike-Hercules launcher in good shape? Then take a good look at pages 5-16, of Chap 5-19 in TM 9-1440-250- 12/2. You'll see a couple of cautions--one that tells you to put in the pin assembly whenever a jack is lowered or raised so that the jack won't collapse under load when the hydraulic pressure is released and the other that says when the jacks are under load, you should extend or retract them at the same time to keep the launcher base from getting warped. NO NEED TO HEED WI0 Dear Sergeant S. 1., You're right. The same goes for the surge accumulator in the hydraulic power unit. The plate's not needed there, either, so no need to order 'em. - t -. / , ~Il 7/~ LET THE 5CREwS STA' Dear Sergeant N. L.. No The people in the know decided there'd be less damage to things if the screws stayed put. ; .' BY THE NUMBERS \ EE NOU ARE' DOES JOB TO A "T" Do you have the latest cops of L(O 9.1 -00-250-20 for using around your Nike-Hercules launcher? No... not the reprint that include. Ch I and is dated Jan 65. But the one that also has "Correcred CopY" stamped across the too of the front coter. If you're using the plain reprint copy. page 18 iclls \ou to use GAA grease on the inserted T on the launching- handling rail. But the corrected cops says to put CT- corrosion preentise: compo-und-on the in\erred T. And CT is right- nor GAA. CHANGE O HEART CHANGE OF HEART Dr. ar Ha f.1iur 4 .1'.- on FLi o 'j '-1 .00-.50.20 V IJLa ,. r' ;u ,r ..rn l. ,T.,, r. e r .r ; I o ... jl -A .. l .' r ,'I- f .i I r r. ,r ',n ,-i : n c a r, rLl,',.- ,n i .0 .' ,rij I r I. r. L'1 on r% ,' rn.i .' .r C I 'I -,j1 671 ro S5v N L BETTER PLUGGED i.- o r rl,- . ir -.i ., I! ..H...ul. o,- LEAVE - [J, .1 Jeoi. n ,r-' ,i'i- ,r, 'EM r Fr r. Dear Sergeant P. D., '.: .: f. ' Lease 'em in. The air conditioners in the BC and RC sans can suck all sorts of lunk up inside when the plugs are our. And t\en without[ the air conditioners doing any inhaling from the outside like with the launching control trailer- stuff can blow up into the drains. So set up a schedule on DA Form 31- for the sans- schedule hat tells \ou to take our the plugs ecrn' so often for a drainage. ./ OPEN AND SHUT CASE It happens in ;our Improned Nike-Hercules RC %an ,heneter \ou fasten shut the electronic marker generator chassi, in the azimuth and range indicator. The screr for the clamp on the S LTLE P- connector hits the 13j cnnctor cablL. that s OFF. what. one da% the scres %ill break through the insulation and ith 8,000 \uli running through the cable, ,-yu'll hasi troubles Like ma)be a ruined pouer supply for the B-sope or a .fLE .shock that'll send sou from here ro there. \ hat to do.' Cut off abour I/2 inch of the .scren. The parr left ill hold the clamp READY AND SET TO GO Cut to size and painted ... that's the story on the plastic escape hitch covers for sour Nikt-Hercules vans. Right.. S our support unit no longer ha' to cut our the coser from a plastic sheet. The cocr goes under FSN 254i0.-S. 9)358 and is listed on page 4.29 of Fed Car C25-i-IL_-A IJan 68). 51 I - WRONG CLAMP IS PUNCHY WRONG RIGHT THAR SHE BLOWS Next time the man from direct support comes around, you might drop a hint or two-if he's going to change the spring clamp assembly in your Nike-Her- cules target-or missile-tracking radars. The clamp goes with the converter amplifier for the TTR, MTR and improved MTR ... and is on the inside wall for the receiver-transmitter in the improved TTR. The camp the DSU man should use is the 1-piece job listed under FSN 1430- 759-9891 on page 67 of TM 9-1430-250-15P/3/1 (Jun 67). It replaces a split clamp that has a habit of punching a hole in the thermostat if it's not mounted right. And a busted thermostat means cooling troubles for the 6116 electron tube in the TTR and the 2K45 tube in the MTR. S 30/52 (Feb 67) has been ap- plied to your Nike-Herc target tracking radar, you need to hold one! Wait 90 minuLes S after firing up the system be. fore making automatic fre- quency control and automauic gain control checks and adjusr- ments. If you don't hold off. You're wasting time with the checks and adjustments. They just won't work out because those 90 minutes are needed to sta- bilize the amplifier detector (the old video and phase unit). ~ --- Doni cIf-Mast t W eouid you pans c ! S so laey'll learn from ou The other day one o HIPAR ieit go. And wia, InI s ied up hia kily ron found out atI r th, ia an.d iv we had spoied fore we haod it. So it pays to kJeep o: connections. I's a so o wuveguide now and on qood thic s lJ eoir 11 ai? 0no n a.'p;icne laMr~i 0V" Prd:,ii ly of""l ilao ) : c fo a. creck anc I looIs, a i Sc P af tao il ooi through the openinoi o i ii. if i:dys Lem dop inside, chance, a ir r ; o n? o lwasl c Dear Sergeant W. L., We've passed the word. And thanks. CRACKED CONE COSTLY Consider yourself lucky ... or careful-or both - if ou' e taken off or put on the reflector for your Nike-Hercules missile or tracking radars without battering the duplexer cone (cover). Some guys are neither... so when they move the reflector around with a hoist, it clobbers the cone. A cracked cone can let in moisture and this stuff in the duplexer plumbing can play hob with RF trans- mission. 'Course .. the idea would be to replace the cone and if you've ever been hit with a statement of charges for one, you know it's not on the bargain counter. M4 SOMETHING SERIOUS! HELLO F'rinstance ... when the oil gets SUPRT real low in the capacitors on the computer frame in your BC van, the capacitor loses its insulation S -- and breaks down. This means S) shorting inside the capacitor and SJ the components that are tied to the capacitor. And believe it... when you see oil leaking from an oil-filled capaci- liECK OIL tor or transformer in equipment on LEAK your Nike-Hercules site, it's time to call your support people. ROUGH AS A COB What's that the 7208B magne- seems sick. You might have a socket tron in your Nike-Hercules target rang- that wasn't made quite right. Send it ing radar keeps acting up-like it along with a 2407 EIR to: works one minute and not the next? Could be that some guy went over- -m ~8 ni G \ board when he cleaned the magnetron and its socket. That is, he used an abra- sive like sandpaper to get rid of corro- sion. Sandpaper scratches and wears away the plating on the socket contacts. SOCKET And when this happens, there's a bad A MAGGIE connection between the socket and - maggie. So wait until you're sure that a cor- roded socket and magnetron are giving you troubles and then use a light abrasive-like crocus cloth-to get .N - rid of the stuff. Same goes for maggies, - modulators and the like in all your radars. The Missile Command people will Suppose the 7208B magnetron and find out right quick if a bum socket is its socket are clean and the maggie still to blame. 54 You know how you have wiring har- nesses with cable connector clamps around 'em in your Nike-Hercules AN/ MPQ-T1 simulator station. Take the wiring harness in the top right section of the ECM chaff cabinet as a f'rinstance. You can tighten the clamp so much that the insulation will be cut and this can mean shorting the + 150-volt regulator in the power cabinet. What you need is some plastic sleev- ing between the wiring and the clamp. Sour support people can get it for you. There's a 100-ft roll on page 86 of TM 9-1430-250-15P/2/1 (Jun 67). It comes under FSN 5970-882-5007. GOOD READING Cut what you need to fit under the clamp ... slice it lengthwise slip it on the wiring-under the clamp ... and then tighten the clamp. Careful ... Don't tighten the clamp so you'll crush the wiring. S' 9~- 1400 -25 '-1513 5 Reading musts for Nike-Her- cules outfits: TB 9-1425-250-15/1 (Feb 68), a pub that identifies com- ponents in your system and the MWO's that have been applied to --- the components... and TM 9-1400- 250-15/3 (Mar 68), a run-down on general and PM services for Here units. HOW'D WE EVER GET e BOvY _. T ALONG O)N3H RsO/Y _F^-- WITHOUT 'EM. TRICK UP YOUR SLEEVE Not all compressed gas is packaged the Army way, label- ed by AR 700-68 and color- coded like MIL-STD-101A says. So if a gas bottle shows up out of uniform, you don't use it until the contents are positively checked out. That AR 700-68 (Jan 67) says compressed gas cylinders carrs DA Label 31 or 56 if he. 're flammable gas and DA So the only way Army types can use commer- cial cylinders is to- Be sure they're been checked according to Para 6 of AR 700-68, and Make sure the right Interstate Commerce Commission labels are on all cylinders. Fact is, any cylinder of bottled gas ought to wear ICC tags anyway. Before using gas, make sure the kind of valve MIL-V-2 calls for is in place. / %IV SUGGESTION,AS OFFICIAL CHAPERONE, i5 THAT sCOU REAP HER LABEL VERY CAREFULLY FIRST. . Label 65 or 66 otherwise. It also says safety regs for gas handling have to be posted wherever such gases are used. The catch is, commercial gas cylinders don't always carry the Army color codes or labels, any more'n civilians wear OD duds. And no matter how educated-a nose some- body claims to have, let nobody tell you he can check cylinder contents with it. Too many gases don't have any odor at all, and too many are poisonous, but deadly. 57 ol~ SDS2 DECON AGENT CH ECK THCSE CAL LCN ' DRUMS Here's the latest scoop on storage life of DS2 for your MI I portable decon. The stuff is OK as long as the Ml I doesn't leak. Same goes for DS2 in 1-1/3- qr cans (FSN 6850-753-4827) and in 5-gal drums (FSN 6850-753-4870). As long as the containers are sound, storage life of DS2 is supposed to be indefinite. And, the DS2 info in FM 3-8 (Jan 67) will be changed to say so. So, just remember-never fill an Ml I from a can or drum that shows signs of leakage. And, when the MIl is kept filled, check it carefully for leaks, espe- cially between the spray head and the container. A leak there of course, means the preformed packing (FSN 5330-265-1084) needs attention or replacement. After the leak is fixed, the MI 1 will need a fresh batch of DS2, of course. INVENTORY a HELPER When tool set inventory time rolls 'round the description in the supply catalog comes in mighty handy. Handier still, is a sheet of plywood on which silhouettes of the tools are painted. The nomenclature or FSN is also painted on the board. Saves a lot of time-especially when there're umpteen sets in an outfit. WATCH THAT DATED HOSE E AC I THINK YOU'RE K CUTPATEP! As you were-portable flame-and-disperser gunners. The M8 hose, FSN 1040-569-9730, used on the M2A1-7 flame thrower and the M3 disperser, must always tell its age. Here's why: The hose is good for only 5 years after manufacture, and for 2 years after its date of issue. You'll find the serviceability dates stamped on the coupling on each end of the hose. The date of manufacture is first, and under it you'll find the date of issue. HOSE IS GOOD FOR 5 YRS. AFTER MANUFACTURE : YRS. AFTER BEING PUT INTO SERVICE The dates are coded. A through L for the months and a number to call out the last digit in the year. Example, when you find A8 as the second date noted on the couplings, you know the hose was issued in January 1968. The hose is OK for 2 years from that date. When the life of the hose is expired, you deadline the weapon right now, and replace the bad hose. Same goes, natch, if for some reason there's no date at all on the couplings. And, of course, during its 2 years of life in the field, the M8 is due its pressure test every 6 months. HERE'S THE (ODE: A THRU L FOR MONTHS; I DIGIT AFTER THE LETTER STANDS FOR THE YEAR ... EXAMPLE: A-8 --JAN '68 BY THE NUMBERS NEXT LOOKS LIKE 4 THEY FINALLY CAUGHT UP / . WITM US! , HERE Propcer)-book r)pcs, hace )ou heard? The M106 portable agent disperser (FSN 1040-782-6891, LIN G22046)- better known as the Mity Mite-is up for registration. Well, quick-like check up on local SOP for reporting the number of M106's your outfit has. The report goes to: CG, U.S. Army Ammunition Procurement and Supply Agency, ATTN: SMUAP-RSB, Joliet, Illinois 69436. And, be sure to add your outfit's identification, UIC, etc., to the letter, message or whatever you use to make the report. You'll soon get back serial numbers for your dispersers, and instructions on how to go about branding the M106. The word went out in USAPSA Msg FG 80791027. MECHANIC'S STRAIGHTENER OUTER I'M TORN! Hold one! Before you mechanics start turning in tools, make sure you're look- ing at the right supply catalog. Here's how to match up your LIN's, SC's and FSN's for the mechanic's kits. FSN 5180-754-0641 NEW OLD Tool Kit, Automotive Mechanic's Tool Kit, Automotive Mechanic's LIN W33004 UN 569151 SC 5180-97-CL-E50 (Feb 68) SM 10-4-5180-A13 (Jan 62) FSN 4940-209-6226 Tool Kit, Mechanical Repairman Tool Kit, General Mechanic's LIN 946193 LIN W45128 SC 4940-95-CL-A69 (Aug 65) (For TOE 29-41, SC 4940-95-CL-A69 (Dec 67) -42, -45, -46, -55, -56, -57, -85, -86, -87, 57, and 67) WABCO 330HAD PUBS No, you don't take equal parts of the TM's for a Model 220 and a Model 440 and mix 'em to get TM's for a Model 330HAD road grader. Whatcha do is or- der MECOM Stock No. 7610-C-1-3608 and stand back out'll fly a parts pub and maintenance book. MEDIC'S PM MANUAL Need to know about Pre\enri'e Maintenance Procedures and Serviceability Standards for Medical Equipment? Then get hold of TM 8-605 (Mar 68). It su- persedes SB 8-70 (Sep 61) and TM 8-605 (Oct 61). 61 Those 5-gal gas cans and water cans are mighty important in keeping )ou and your equipment on the go. To make sure they're there a hen you need 'em, give 'em a break when they're taking a break and store 'em right. / GAS CANS Make sure the cans are clean and free from dirt, rust and gook. Coat the inside with clean oil. Use PL-S preservative (W-L-800, Lube Oil, general purpose, preservative.) FSN 9150-231- 9062 gets you a 5-gal pail. If you can't get the PL-S then use OE-10(Mi-LL-2104), Lube Oil internal combustion engine. FSN 9150-265-9425 is good for 1 quart and FSN 9150-265-9428 for a 5-gal pail. If you're in Europe and have the lined cans, you don't have to coat the insides. Just clean 'em well with fuel or dry cleaning solvent and cap tightly. Ventilate real well before you close 'em. POUR A COUPLE OF QUARTS INTO THE CAN, SCREW, THE CAP ON I ANP SHAKE THE CAN 50 YOUL BE SURE ALL r THE INSIDE GETS A COATING. / Use the same oil until it gets diluted with gasoline. Be sure you drain the oil from each can after you've coated it. Close the filler caps hand tight before you store the cans. Store the empties indoors or out- doors, whatever your CO says to do. Be sure you cover 'em with a tarp if they're outside. STRAP CANS IN GROUPS OF FIVE SIPE-BY- SIE ... THEN PUT 'EPM ON PALLETS! IT 7 WHEN >OLU * HAVE A LOT TO STORE, STACK 'EM PYRAMID STYLE! SBE SURE vCU PUT CUNNAGE'TWEEN GROUND ANOD FIRST TIER! 4C ^ If you're going to stack 'em more than S4 tiers high, you'll have to use supports at the end of each row so the stack won't shift. When you have a lot of cans to store, Sit'll pay you to make a can-storage rack. Its size depends upon the number of cans that have to be scored. Take a good look at TM 10-1101 w/ Ch 4 (May 67) for all the scoop on can care. including how to make the racks. WATER CANS If you store water cans for any length of time, make sure they're dry inside. Leave the closures open and tilt the cans so they'll drain and no moisture can collect inside. You'll need to make a rack or pallet to keep'em off the ground *ir I and tilted. Check them often to see if they're "sweating." If they are, dry them on the inside but be sure to leave the closures open when you put them back. - - ------ i SCAN THE Anytime you need more scoop... in RELAT7 ED a hurry, on your equipment or some RELA D general know-how on maintenance or PUBS supply operations, just crack any handy __ ~ pub. ^ / PIDJA TRY THE ,-Q.UICK, I NEEDPi PU MORE POPE ON THIS Fix i Check the publication's content page for a paragraph or an appendix titled "References", or "Related Publica- tions". You'll very likely find a dandy list of pubs which'll steer you in the right direction. From the reference list, of course, you have to go to the right DA Pam, index to publications, for the date and any changes on the publication you selected. And, from there on in, no sweat, you should have enough info to know exactly what to pick off the shelf. -C -N *.U ". 'a-u D a.-~l 1II~, HOW ABOUT TRY THE TM'S THE OUTFIT'S RELATED PUBS PUBS IN THE HOW ABOUT SECTION. TOE? RELATED PUBS IN THE ARMY SUBJECT SCHEDULE. I / W109A42 Data Plate Are you sure you've got the right data plate identifying your M109A2 21/2-ton shop van truck? This's the job with the LDS 427-2 multifuel engine. If you need a new plate, get it from USATACOM, RIC B24, under FSN 2590- 725-1063. Tell the right FSN for your vehicle with winch it's FSN 2320-440- 8308, without winch it's FSN 2320-440- 8313. &awe For 7Te 4aed Nike-Hercules outfits: TB 11-6135- 200-25/1 (Nov 67) is for you. It tells you what to do with unserviceable and overage batteries the BA-472B/U, BA-472C/U, BA-485/U and BA- 485A/U. The TB doesn't mention the BA-617/U, but the info in the pub is the same for this battery except it doesn't reach overage until it's 8 years old, figured from the day it was assembled. Sur"vat a/it Poop Hey there, airmen! The basic issue item list for your survival kit is now in Ch 1 (9 May 68) to TM 55-8465-206-13. Replace those missing parts, pronto. Kzeefp Peaw4 7/cca^ Hey, you supply types! When a mech turns in a faulty part never let it collect dust on the shelf. Take the direct action route. Eye the parts pub and if the item is recoverable get it moving to support for repair or overhaul. Keep the parts pipeline filled. Have your medical equipment records had a checkup lately? Latest scoop on maintenance and historical records for medical equipment is found in TB 38- 750-2 (12 Mar 68). It supersedes the 1967 TB'with that number. 6on0ai o, StOwt5 Is that TA-182/U telegraph-telephone signal converter ringer too strong for your carrier terminal equipment? No sweat Take it out of the case and see if a 20,000 ohms resistor is at pin 10 or on terminal board YZ. If there's no resistor across R26, then see your sup- port maintenance about getting one put in. It takes only a few minutes. If you're having trouble locating the resistor get your support to identify it. Would You Stake Your Life on the Condition of Your Equipment. eaeld * It tells you what's the latest on EIR'S filed. * It tells you who's MWO-ing what * It gives you a chance to find out what some of the latest maintenance problems are all about...you get some good useable ideas that way, see!! * But most of all it may publish YOUR EIR-so you can see what action you produced. I H730911-2 TB 790923-1 |