PS Magazine Issue 26 1954 Series [26 ed.]

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Citation preview

1954 Series Issue 26

The

time has come when you use your good 01' records and usage experience instead of a book to tell you exactly how many of which items you stock in your supply room. That's right-your stocks are based on actual demand for parts.

'0

You only use Ord 7 SNl as Q guide. You don't need stock everything it lists. 'Course, you'd start out with a full load, but a s time goes by and you see you need fewer of some items (maybe none), you con reduce your stocks or drop some completely. And it's just as legal as all get-out. Just bounce your eye-bolls over SR 711-15-5 (15 Jan 54). For all the scoop on how this new system works see page 2.

T he time has come when you use your good 01' records and usage experience instead of a book to tell you exactly how many of which items you stock in your su pply room. That's right- your stocks ore based on actua l demand for parts. You only use Ord 7 SNl as a guide. You don't need to stock everything it lists. 'Course, you'd stort out with a full load, but as time goes by and you see you need fewer of some items (maybe none), you con reduce your stocks or drop some completely. And it's iust as legal as all get-out. Just bounce your eye-bal ls over SR 711-15-5 (15 Jon 54). For a ll the scoop on how this new system works see page 2.

_USiQR

IN THIS ISSUE 'Hue No. 26

FEATURE ARTICLES

AND RECORDS

Stodcin' Ordnance Repair P.... Ml Rifle Car. Comics Jeep o;pstick & Oil Fi .... Switc.... New Cleaning Rod For M, Rifle . Small Arm. Ammo M33 Fire Control Tricks How',. You Fixed For Blades (Enginee,.)

21 29 33 24 36 41

DEPARTMENTS Connie Rodd Half-Mast Armament Supply and Directives Publications Scoop Engi ....,. Contributions Connie RodeI's Briefs

17 30 33 38 39 40 44 48

PS Magazine wants your ideas and contri· butions, and is glad 10 answer your quesli1:lns.

Just writ. to, Wter, PS

Pmi.. ;,....,

1Iapzi••,

Ma"ian.

Mem••

IN THIS ISSUE Issue No. 26

MlIDN

1954

Seri.,

FEATURE ARTICLES Stockin' Ordnance Repair Parts

AND RECORDS

M 1 Rifl. Car. Comics Jeep Dipstick & Oi l Fiher Switches

21 29

New Cleaning Rod For M l

Rifl.

.

Small Arms Ammo M33 Fir. Control Tricks How',. You Fixed For Blades (Engine.rs)

33 24 36 41

DEPARTMENTS

Engineers

17 30 33 38 39 40

Contributions Connie Rodd', Briefs

48

Connie Rodd Half-Mast Armament

Supply and Directives Publications Scoop

44

PS Magazine wants your ideas and contri· butions, and is glad to answer your questions. Just write to: Editor, PS Mallzine, Aberdeen

Prorinl Ground, Maryland.

n..priooli"lolI'SMotoline.lhorHUNl1Y[IU.IIIIEl11d(E iIIOIIIIU.K _ ... . ,Iho~I .., ....... oflholodttt(~hl nJ, ...t k . llriMIIM t.How~ ACIIVIU.Y, ,",, ml, DA (1); 1\01 (I); IlKs.., OAII) utopl l", (7S), Or' (21S); A'" , 1.. s.c I d (I): 4tf{lOj; OS ... lc......I (1);0I Io01; tn, (lj, .... ,jl). 1n (41, Co (H) c...I(I):

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lIod(I); QM(II, I!'~ (5), II\M,I I15). Gtn& " mldl(iJUlts. Get the 2-1/2-inch distance between centers as exact as possible. 44

3. Weld the two sections together (Fig 2). 4. Grind a pilot at the end of each bolt (Fig 3). Use standard issue hex-head steel bolts 5- inches long (Ord Stock No. HOOl-01l6449) if available. Or 5-1/2inch length (HOO1-0420674) is OK. Good idea to run a nut on the bolt before grinding the pilot; backing it off will straighten out any threads that might get banged up by the grinding operation. To use this tool for its intended purpose, you just take out the connector wedge, hook in the puller where the wedge was-with the bolts pushing against the track-pin ends-and screw away (Fig4). The pilots will engage the center holes of the track-pins and keep the puller from crawling. A little graphite on the threads and pilots will make the turning easier. As you run the bolts ill:, alternate between them so as to keep the connector coming off straight. Big advantage of

the pusher bolts is that you can allow for a difference of tightness of the connector on the individual pins-and avoid the binding effect of applying equal pressure to both pins (like you get with the standard track jack). Just pulling won't always be enough. On a real tough job you may have to shock it some, too. Screw the tool down good and tight for a straight pull, then bang the connector sharply with a hammer. It'll usually jump right off. Most any kind of wrench can be used on the bolts, but the beSt deal's a 1-5/16inch socket with 3/4-inch drive ratchet or breakdown handle. The Maintenance Gong Aberdeen Proving Ground, Maryland

(Ed Note-Looks like a neat solution for what can he a costly, irksome hottleneck in track maintenance. If anyone hankers for a more artistic joh, they might knock off the sharp cornersexcept on the inside surface of the hook, .. o'course.) 45

NOSE FOR HOSE

Dear Editor, \Vhile in Korea I picked up a good idea l'd like to pass along. On equipment with straight air brakes, like on the large trailers and 1O-ton trucks, we found that every so oftcn a relay-v'alvc-to-chamhcr brake hose would crack. Our supply room didn't always carry the part, and we didn't have the equipment to repair the broken one. So, we needed a substitute to keep the vehicle off qeadline. We had some broken trailer hoses. They arc the same diameter as the brake hoses, and with irs quick-disconnect off, the ends acc the same, too.

You can reuse old ferrules by taking a screw driver and gently prying its fingers open (Fig 6). And long hoses can some~ times be made into two or three short

James H. McKinneli Ft Hamilton, New York

(Ed Note-Not bad ill a pi1Jch. But check with supply first. They may have the part yolt need.)

With one end ready for use, cut the hose for length, being sure that the piece you select is OK. Then take the nut and spring from the broken brake hose, and slip it on the end of your new piece. Now put the ferrule on, leaving about 3/S·inch of hose on the end. And with a pair of pliers, squeeze it so the nut will slip over it(Fig S). Presto-a hose is born.

WHICH WAY TO TURN?

Dear Editor, We were out on maneuvers towing a brand new ISS-mm howitzer, when plop, bang-off came the howitzer's left wheel. u When we checked to see what did it, we found its hubs were on wrong. The left was on the right and vice·worser , so that the wheel locking-nuts had loosened up instead of tightening as we rolled. \Ve checked other howitzers and found the same was true on some. By exchanging th~ hubs for each other, we soon had the stud threads twisting in the right direction.

Cpl Steve Barber Ft Meade, Maryland 46

(Ed Note-What makes it confusing is that the manufacturer usually installs a hub so that its stud threads turn toward the front of a vehicle. And in

tOO easy to catch the sole of your shoe under the foot*rest when you push the accelerator 'way down. What I suggest is put some weld under the foot*rest, tapering it d~wn coward the floor. This'll let you raise your hoof, and your shoe won't get caught under the fooc-rest's lip.

PFC D. R. Geaman Camp Carson, Colorado the case of artj//ery, the gun muzzle is called the front. But artillery fets towed bac.kwards, with the muzzle pointing toward the rear. That puts the right side left and the left side rightmakes it hard to tell left from a hole in the ground. To set those hubs straight, their stud nuts should tighten in the direction of the trailer lunette-starting with the wrench handle at the top of (Ed N ote-T apering the foot-rest its circle. But even if the studs a1'e turn- would let you slide your size twelves ing the other way, the wheels shouldn't back to safety. But if the rest still proves roll off. Tests show that if the wheel's to be a hazard, why not remove it? Fill centered, and the stud nuts tightened, the hole it leaves with Screw, cap j116· it'll stay put-regardless of how the inch x jI8-inch, Ord Stock No. HIOI· threads face. In fact, during overhaul, 0216284, and washer, plain j/J6-inch if a shop dgesn't have the right or left ID OrdS/ock No. HOOl-7045561. The stud needed, it uses either rather than later M38AI's did it. The AI's also put the vehicle on deadline. So whether solved the accelerator-brake pedals probor not your nuts twist toward the front, lem-by spacing them farther apart.) the wheels'll be with you if they're put on right.) HALF-MAST IS WAITING NONE OF YOUR LIP

Dear Edicor, It -wasn't the first time I put my foot in it, but when I couldn't take it off an M3S's acceleracor pedal-brother, it had me going. The trouble is thac the gas pedal's too close co the brake pedal. And it's 47

Sgt Half-Most is waiting to hear from you- if you;ve got an j deo or problem on maintaining your equipment. Just bat out a note on a post-card or letter today and mail it to him- Sgt Half-Mast, c/o

P5 Magazine, Aberdeen Proving Ground, Md. He won't tell a soul you wrote him, but he'll sure give you some ~ help.

Official engine governor setting for tissue. your 5-tonner trucks is going back to 2800-RPM-like your TM says. Keep an eye peeled for Technical Bulletin May be nice to feel at home in your tank driver's compartment-but take care 9-837-6. where y' hang your hat. That tank gearshift lever's no rack for helmets, canteens and such. Wanta jimmy a spring or lever If your M18 reflex sight on your M45 -maybe hit reverse when you're aimin' .50-cal. guard mount has no guard for low? Keep the gear shift clear of around the reflector you'd better see everything but your lily-white mitts. It' ll MWO Ord F242-Wl right away. Keep save transmissions-and teeth . you from ending up with your glass in the sling. With the 30-weight oil in your GM.....C Hydra-Matic transmission, it's -best -to check the oil lever after a day's run. When the oil's hot it'll give you a truer reading 'cause it fiflds its level better.

If your M1919A4El machine gun doesn't have its short-round stop like all the other .30-cal. jobs, you've got one com ing . Your Ordnance outfit will do the- job for you . The 'El got left out of MWO Ord A6-WI4. ~

ti44«,e

Faulty breech interlocks QfI the T83E6 and T83E7 Skysweepers are going down the drain, along with T8 9-3027-1 (10 May 54). Keep on the lookout for MWO Ord D48-W2. It'll cancel the T8 and turn the interlock into a one-piece job.

~

444Ie Man, if you've got the idea you can clean lenses on sighting equipment with commercial eye-glass tissues you're suf48

Some guys have been complaining about cracked windows in their vehicles. Unless the channels holding the glass are in serviceable condition, windows are easily broken. Slamming is another big cause of smashed sashes. When you slam the door hard while your window is rolled down, don't be surprised if you roll up little pieces.

Yep- brakes are the driver's best friend. You gotta be kind to 'em, tho'. Check over those hydraulic line connections to see that you're not losing fluid. Otherwise, you'll be a friend in need.

If the hinge on your M43 ambulance's spare-wheel carrier cracks at its weld, it's probably because the weld's fusion area's too small. Reweld it with a larger fusion area to spare your spare.

Those 5-ton, 6x6, trucks, equipped with a winch, call for a second look when you reach for the power-takeoff controllever or the transfer control-lever. late models have these controls switched. The transfer control-lever's next to the drive's leg instead of the PTO being there. This so's you won't be kicking the winch in gear with your size twelves.

A good substitute for the liner on top of the radiator- the one the hood rests on-is a worn-out fan belt. Turn the belt ups ide down a nd split it to the thickness you want. lay the wide side down against the radiator grill and rivet it in place. It works fine.

Here's a hot one. When it comes to spark plugs, the M38 and M38A 1 1/4-ton trucks use the same one. Its stock number is H004 -8357724. Gives less pa ng to the Jeep's ping.

you want an accurate reading when using a torque wrench , you gotta have free-running, lubricated threads. Threads that' re g um med up, buggered or rusted can stew your turkey. So-before torq uing, clean 'em and oil 'em.

If you're using the M33 acquisition azimuth-drive t.ie-down eyes for guywire anchors-you'll teor 'em loose . You only use 'em to tie down the drive unit when it's loa ded in the trailer. 49