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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 IM 5-3820233.17/1 Jun. Joa
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

	Front Cover
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