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COULP 17 E5 IHAT
-DUR TORQLA1E vVRENCHE5.,,
&AnGE5 ANP 7ES7111,
EqUIPMEN7I NE E1
Fuel is to your
engine what food
is to you.
Food makes you go; fuel makes that
You never want dirty or spoiled food;
it can make you sick or even kill you.
It's the same with that engine. Dirty
fuel can make an engine mighty sick,
even kill it... especially if it's a diesel
or multifuel job. Those babies have
powerful muscles, but weak stomachs.
Dirty fuel is knocking a lot of 'em out.
That's why it's real important for you'
to see that only clean fuel gets to your
There's one way to make sure your
engine drinks only clean fuel, and it
takes just minutes a day. It could pay
off big for you ... like seeing that you
get through a real tough situation.
It's this: Drain your engine's fuel
filters every day. And, drain the fuel
tank scic week or so. depending on
how ct your climate is. The warmer
and werrer the climate. the more likely
.our fuel is to get ill gummed up v ith
bacteria and such scum. See your TM
on ho, [To do the draining.
\\'hcne'er the fuel at the filter looks
like it's real dirr call in sour unit
mechanic. He mai hais to get help
from the direct support ourfit.
\\ haeier .ou do. keep .our fuel
290M reactor 1525
LUgil 5l 26
D[ ITrator 27
DA Form 1? 662
tIR. M1 1B's 63
Manulacurer's Pubs 64
Supply 8 8.26.37 38,
48. 51.57. 5
GROUND MOBILITY 3747
MASA2 MABA2U 31 Hire Rope Lubl 44
MS4 Series lank 3839 Baler Hose 45
MW Series TIanl le Pressure 45
31-39.40 41 4..Ton Scoul 4
M4A 3 CEY M 728 41 EIR Fiea A
MS 77 F 42 M49A2C Tanker 41
AVBL Launchel 41.42 Ligl Swlcnh 47
M127/A Smnllra.ler 43
Vehicle humbering 43.44
AIR MOBILITY 48-54
1H H 48.49.50 CH47 52.53
IB AVN24.16 50 Surv.ali in 52.53
Ri.eler 51 U-LA 54
Ir-MidCGier U SB-IP.SB-2211 /P 57
FM Ramlo 58 MK.jA I;,G $It 51, 5
Use of funds fin prntlog li this public.
lion has hee approved by Headquarlers
Deprilment of tle Army. 19 February 1965
DISTRIBUTION: In accordance with re
quiremenls submitted on DA Form 12.4
,[E PREVLNTIVI MAINTENANCE MONmrL
ssue No 177 1967 Series
IN THIS ISSUE
FIREPOWER 2-14 E
Realye 27 MI08.MI0O 9
MIOl,MI tO 8 Nhke- rc 0.l11.12.1 14 -B
mi .f BE YOUR OWN INSPECTOR -
An air defense guided missile system
in a small package? Anybody who says
it can't be done hasn't ec balled the
XMl41E1 intercept-aerial guided missile
system- Rede c. for short.
And a guided missile s5srem that hardhi
needs maintaining- Again ... that's the Redese.
That doesn't mean iou forget it's around until iou go to use it. Nor on sour
life. There are things to do to make sure that what's supposed to happen does
happen before and after iou squeeze the trigger.
So come along on an inspection trip around sour weapon, the sort of trip t.
that can help iou head off trouble at the pass. As you check remember that the ,.
points in hold ispe want to be taken care of right away. .-f '
If you have a humidity indicator plug in the batten /coolant unit receptacle
instead of a batrren/coolam unit. we'll start the inspection. If it's the other ay\ Sp
around, somebody's goofed. You never ha'e the battery/coolant unit in the .
launcher unless iou plan to shoot. _- .a' n
',HOC': MOUNT Cracked. -'"' a
OPTICAL SIGH- ASSr -Lens protectors torn, rX1' I
loose, hard to remove, missing, tab ripped ,rrri lr a
off; front lens dirty, scratched, busted.
moisture behind it; optical eyeshield stiff,
ripped, cracked; lens dirty, scratched, bro- i
ken, moisture on inside. ,
CAP ASSY-Cracked, broken,
loose,hard to knock off, miss-
ing, grooves on inside beat up GRiIPTOC' Contains
(grooves needed to seat cap water, cracked, busted.
Incidentally, this piece deals with the Block I and
Block II t)pe RedeSe. So, if you're got the latest
configuration Block III like % ith an open sight -
don't worrn, we'll take a close look at the differences
in a later issue of PS.
Lt IiNCrEf iRlv FFRALLi -Dented,
punctured: dirty; wet; corroded;
screws loose, missing: stenciled
markings can't be read, missing;
"confidential" lag missing (don't
remove till you're ready to tire).
04 "~. --d
EYESHIELD ASSY -
Can't be mounted (bad
HUMIDITY INDI: ATOR PLUG
& BATTERY/COOLANT UNIT
RECEPTACLE Inside dirty;
prongs hent, broken; contacts
BATTERY/i O0ILAN r UNIT-One or more
units missing (need three for each
weapon); unit cracked, broken; contact
rings corroded, gouged, shorted by
metal scrapings (from the rings them-
selves); gas tube bent, busted, collar
pushed down away from 2 holes in tube
(collar protects holes till you put unit
in receptacle... then it's pushed down
and out of the way); preformed packing
loose, cracked, busted; heat-insulated
cap and case not held tightly together.
H J M I D IT I I.I fT I R PL 111
-- Loose, missing; paper pink;
glass broken, paper filter
missing from bottom of plug;
, preformed packing loose,
LAUNCHER HUMIDITY INDICATOR
PLUG Loose, cracked, busted;
preformed packing loose, busted,
missing; center dot is lavender or
pink instead of blue; same thing
for the section marked 20 on the
outer ring of the indicator card;
glass broken; cap (removed for put-
ting in desiccanl) loose, missing.
RETAINER WINDOW ASSEMBLY -
Window loose, dirty, scratched,
broken; seal between window and
retainer ring broken, lugs busted
(lugs go in grooves on launch tube
cap to make sure cap seats right
Here's the place to hang out the yellow caution flag as a double-check. That is,
make sure you have a humidity indicator plug in battery coolant unit receptacle
- not a launcher battery/ coolant unit before moving on to the safe and
actuator device and firing trigger.
SAFE AND ACTUATOR DEVICE-No
clicking sound heard when pushed out
FIRINGi i E-- No click heard when and forward as far as possible; after
trigger is pulled all way to rear; trigger letting it go, lever won't return to safe
doesn't move back when released; no position; no click heard on return; lever
click when trigger is released; hard to hard to move, cracked, broken; notch so
pull to rear; busted; sealing boot stiff, dirty tip of lever won't go in; lever stop
cracked, torn; seal not airtight .cracked, broken; spring weak, busted.
SHIPPING & STORAGE CONTAINER -
Weapon supports loose, busted, miss-
ing; cover can't be closed; latches bro-
ken; handles broken, missing; markings
can't be read, missing; water inside.
BE PARK SURE
HOLD YO/ o NEVER SQUEEZE
YOUR THE TRIGGER WHEN
FIRE! o HAVE ANY OF
THE E 5 TROUBLES.
The from window is broken.
Bits of the broken window can
form a wedge between the missile
and wall of the launcher--a
wedge that might cause the mis-
sile and launcher to leave your
shoulder if you try to fire the weap- ,A \,
on. Believe it.
SYou can hear a rattling sound 6r
in the optical sight assembly as you TEETH
shake the launcher. RATTLING,
SAM ? .7
You find ice, mud WHN You can't
and what-have-you em- LAST acquire your target.
bedded in the aft seal. CLEANI HERE
It shouldn't be any prob- 'ER? I AM
lem getting rid of the
You don't have to treat your weapon
as if it were a crate of eggs.
7 IT -AFE.... .
\ SEE.! r. I
o"I if you toss it up on the
floor of a truck and knock the different
interior components out of whack, the
weapon will be safe. Trouble is, and
here's the clinker, you'll wind up with
just so much metal, plastic and what-
have-you in your hands.
And what good is a safe weapon that
can't do its job? It's like digging your-
self a hole 200 feet deep. You'd be
safe, but you wouldn't be hitting back
at the enemy.
So try to keep your missiles in
their container when you're on the road.
But, comes an emergency, if you and
your Redeye are together in a vehicle,
carry it on your legs to keep it out of
harm's way. If you can't carry it, put
something between it and the floor of the
truck-like sleeping bags or blankets.
Whenever you put it on the ground,
make sure-- doubly sure-- that it's on
its right side-with the bumpers fac-
ing down. The bumpers are the only
things that should touch the ground.
Always carry it with the seeker end
WHEN YOU TOTE IT HAR I
ON YOUR BACK... HAVE IT WAY!
AT AN ANGLE!
Let's say you acquire a target, the
gyro spins up and then you get the
word to "power down". Instead of
swinging the launcher off your shoulder
-a sudden movement that could dam-
age the gyro-wait about 10 seconds
for the spinning to stop, then lay it
One thing you have going for
you is the publications for Redeye
-TM 9-1400-426-12 (Aug 66),
and FM 23-17 (Dec 66). They're
not loaded with pages, so you won't
get bogged down in reading. But
Ithe scoop in them is real important.
STake the time to read them.
STM 9.1400-4.6- 12
MI07/MI11 DRAIN HOLE FIX
Your M10' or M O10 SP artillery
getting waterlogged from rain?
No problem Drill rto L-in holes.
one on the left side of the vehicle and
one on the right. Drill 'rm at a point
-3 inch from the floor of the sponson
and s8 inch forward of the weld seam.
Added to the three drain valves )ou
already% hatv on the vehicle-in the
driver's compartment, power plant
compartment and in the turret well -
the\'ll let most of the water run out.
RI G'S THE 0 M I9G
An ounce of prevention is worth it when it comes
to applying MWO 9-2300-216-20/7 (Jun 66) to
your M107 SP 175-MM gun or M110 SP 8-in
The MWO has you trade the two parking brake
pins in the parking brake assembly for stronger
ones. You don't get new plate retaining rings with .
the new pins, though, and the chances of busting
the rings when you go to remove the old pins are
better than even.
So look ahead-have extra rings on hand before
you take care of the MWO. They're on page 77 of
TM 9-2300-216-20P (Jul 62)-under FSN 5340-
720-8064 and FSN 5340-715-1152.
A VIAL THOUGHT
An M118 elbow telescope level vial that you
can't read sure does you no good.
Maybe you've already found this out-if
you're with the crew of an M108 105-mm SP
howitzer or an M109 155-mm SP howitzer.
So happens that moisture and dirt can get
down under the level vial. And enough of this
unwanted stuff will keep the light from coming
_._ through to the vial.
There's a way out, tho.
Your support people can seal along the edges
I. of the vial with locking compound-the kind
that comes in a couple containers under FSN
8030-275-8110. It's in Fed Cat C8000-IL-A
,. (1 Jan 66).
'V PLAIN TO SEE
You're right .. putting white paint on the rotat-
ing head of your M117 panoramic telescope does
make it easier to spot the head when you're sighting
on an aiming post at night-whether your shooter
is the M108 SP 105-MM howitzer or the M109 SP
When you do, though, you're going against the
rules. As it says on page 44 of TM 9-213 (Jul 62)-
Painting Instructions for Field Use-"The part of
the telescope or other fire-control equipment that
extends outside of the tanks will be painted olive-
drab." That also goes for other tracked vehicles, like
Painting the head white makes it easier for the
other guy to see. And it means somebody will have
to paint it again--with OD.
- w --|- p .inw, r
COOKING WITH GAS
Have you taken a gander of late
at your Nike-Hercules launcher gas
The cylinder is given a hydrostatic
test by your support unit every 2 years.
You find out when the cylinder was
last tested by checking the date on the
'Course... if the cylinder looks beat
or maybe is corroded, don't wait 2 years
to shoot in a DA Form 2407 so it can
be tested. Do it now.
PLATE TELLS ALL
Why guess at what you're supposed to do when it comes to filling and drain-
ing the hydraulic reservoir for your Nike-Hercules launcher?
If the instruction plate for the reservoir is missing (seems a number of
launchers made it into the field minus the plate) ask your support unit to
make one for you. The scoop on putting the plate on the launcher base frame
is in MWO Ord Y75-W63 (Apr 60).
You might mention to your DSU that
in making the plate, the drain instruc-
tions should tell you to remove and
replace the cap, not plug. MWO Ord
Y75-W78 (Aug 63) changed the plug
to a cap.
And instead of being torqued to
400 in-lbs, as with the plug, the cap
gets torqued to 270 in-lbs. This scoop
also wants to be on the instruction
~ lav- ~rr,,~~ -~I
There's some good scoop for you Nike-Hercules guys in TB 9-1400-299-
10/1 (Feb 66).
F'rinstance take a look at page 2-12-case Y075-19-C2-R1 (1-R). This
section of the TB gives you the word on welding both sides of the clamps that
you use to hold the cables in place when you march order the erecting beam.
Seems the welded end
of the clamps are breaking
away from the rest of the
clamp... and having both
sides of the thing welded THAT "
will be a big help. WELDED END
A little care will also go WILL
a long way, like when you BREAK!
go to take off the clamps.
NOW, You say they have a
ABOUT hole that starts at the
THOSE top and comes out the
/ PSTICKW bottom of the plug?
YOU USE And you figure the
TO CHECK hole belongs there.
HYDRAULIC Not so.
IN THE THERE SHOULD BE
PECtELERATOR A VENT HOLE.
NIKE HERC That kind of hole
RAIL... will let dirt, water and
whatnot into the reser-
voir. You want to have -
the hole plugged, or
STAKE A LOOK
Those quick-disconnect cable connec-
tors for your Nike-Hercules launcher
... do you take a close look at 'em now
and again? That goes for both the jacks
It's a good idea. You might spot
moisture, corrosion or bent or loose
pins -things that could cause all sorts
of trouble with the launcher or missile.
And be sure to get rid of any bugs
that might've got hung up when the
connectors were removed for a spell.
Bugs? Right... they can hold moisture.
NOT THE DATE
Pages 10 and 11 of TB 9-1400-299-10/1 (Aug 65) talk
about outdated roll charts for the Hickok tube tester,
model KS 15750-12, that we use at our Nike-Hercules site.
The TB says the number at the beginning of the chart,
3200, is supposed to be followed by the current year. In
other words, it's saying that for 1967 the number should
But our outfit and others that I know of get back the
same number, 3200-54, after we send the tube tester
out for calibration.
CWO N. W.
Dear Mr. N. W.,
You'll always find that
3200-54 number on the chart.
The chart calls it a code num- Model KS-15750-lar
ber .. and that goes for all 6 Code No.3200-5
Current year shows up on
the right side of the chart.
42 Tube Te5ter
U H / J
You say you haven't heard the word?
When you do... fight the temptation to go to your Nike-Hercules launcher
control indicator with a fistful of tape or safety wire.
Some outfits have taped or wired fast
SDON'T TAPE OR 3 switches that're not used-test load,
WIRE SWITCHES battery charge and external-internal.
-.. Seems there's a rumor that if the
S switches are put on accidentally, a BA-
472 battery might be activated.
a _(Q On the other hand ... taped or wired
., switches could put an inspector in a
SPLASH GUARD SAVER
Talk about unfair wear and tear of
The front splash guards on more'n
one M529 ready-round transporter
have been ripped to shreds by getting
caught in the wheels. And there's no
reason for it to happen.
That's right... MWO 9-2330-255-
30/5 (5 Dec 62) gave the word on re-
locating the splash guards and putting
metal strips on them.
No MWO kit was involved strict-
ly a deal in which your support people
latch on to the few needed parts through a
supply or locally. -
A EAOUS SWEETEART-
OLVI;S1 i 0
So you've got a new 4-wheeled Clark 290M Tractor-
all 54.000 shiny pounds of her. Pride is the word.
This tractor has what it takes. Dig our the
TM 5-2420-206-15 (Jun 66) and help
get it ready to barber the boon-
^ docks and leIel the bamboo
Sixth %ou in the saddle. l
LUBE FITTINGS-Some may have been left off, and every last one is necessary.
Besides, a check-over with the LO and TM in your hand is a fine way to find
out how this tractor is put together. Be sure you feel into the hard-to-reach
spots. Some fittings you can't see, but you can touch 'em, like the one on the
bottom of the universal coupler.
If any fittings have been left off, be sure they're in and used before you
make a move to get power up and work done. /
S HYDRAULIC RESERVOIR-Fluid, 125
gallons of it, should have been ship-
ped in the tank. Make sure there's
no water in the bottom, like by
having support take samples. If
you're where you can watch, be
around to see that dipstick test to
tell if the tank's full.
11 BRAKE FLUID-There are 4 reser-
voirs, and all have to be up to snuff.
Just cupping fluid to the bottom of
the inlet is right-no use running
over and dripping. Look at items
26 and 30, LO 5-2420-206-15-2,
and pages 37 and 38 of TM 5-
2420-206-15, for all-season lube
and hydraulic oil dope. If you have
to use the Interim TM, you can still
look the points and lubes up by
with clean water or
L TIRES- Take 45
PSI, but for long
trips on hard-top
roads, make it 50
PSI. For work in
deep sand, 30 PSI
is best, but change
back for highway
sure all 9 gallons
are at muster.
Front and rear take
69 pints apiece.
M PLANETARY HUBS-
All 4 take 26 pints
M BEARING BOX 5
quarts will fill it.
trolyte has to cover
0 STEERING LOCK LINKS
-Both have to be
off before you move
a peg. But no chuck-
ing them away, be-
cause they are per-
1 CYLINDER CONNECTING
has to be all off. Eyeball
the lift, steering, and
tilt cylinder connecting
rods. Clean hydraulic
oil, just a touch on the
plungers, you'll use to
coat the rods.
That's correct. Every 8 hours your 290M is on the job,
you give these items a hard-nosed inspection, in addition
to your daily PM service.
strut, tilt cylinder and
lift cylinders, push
S'beams, and those cylin-
der rods get a lube
check, and oftener under
Then take a close gaze -
at engine oil supply.
lic oil tank supply you'll
want on the mark. Then
those pivot hinge pins
S -take a make-sure by
S themselves. Steering
cylinders come next to
see if plenty OE 10 is
inside, and if the 4 i ..
fittings got their doses '
of MIL-G-10924B. .
REAR END-Cradle pins in both
places get lubed whether or not
they look dry. Else those hefty-
looking cap bolts on the end will
probably shear. There's no bigger
must, next to engine oil and hy-
draulics. Next check and lube the
universal hitch good. Then put
transmission and converter fill on
the got-to-scan list, and your red-
flag roll is complete.
fJ I 7 -si I=
CHECK O No matter if support readied your
TRANSMISSION FLUID new honey and swore by all the BaMeBa
T'H ENGINE WARMED barrels south of Bung Bung that the
UP AND IN transmission fluid, or converter juice,
NEUTR got full inspection, take nobody's word.
There are two places to look, and the
/ TM's LO and TM show 'em as No. 24
on the chart. But to do it, you have to be
running, and what's more, you got to
be up to operating temperature.
So take the TM method and warm up
until water shows about 180F. Then
check transmission fluid hot, with en-
gine idling, in Neutral.
But while she warms up, which a couple minutes will do, sit there in the
saddle before the chute opens. Check the controls, see that they're free and
working right. And if you don't have to get afield pronto, you can use colored
paint or tape to make your own red-line indicators for gages to mark danger
places by the TM.
NO SIMPLE JOB
Doing the wrong thing with this rig can be just -,
plain dangerous. The main things you've got to be careful about are:
STEERING--This is a full-hydraulic system, and 5 gallons, give or take a few
spoonfuls, go from cylinder to cylinder in a turn. That is, the power-driven
pump shoves those gallons in a few seconds-and if there's no shove, there's
Your car back home had a manual override on steering. With engine off, you
could still turn to the side of the road and park. But Samson himself couldn't
wrestle this front end around with the engine dead.
OVERSPEEDING-In W R
plain English, that \ 'I
means running the en- 5s '
gine too fast. You're in ( RKP
danger when you hit WWU
2400 RPM, you're on
the brink if you go to -'
2700 RPM, and miracles RPM _
seldom happen to save s
you if you touch Rl-C, .I, l
3000 RPM. N
The thing is, those 380 horses up front gather in 20 extra horses at the peak,
and what's called a full-torque transmission is the harness between that herd
of horses and the load--and more horses means more speed.
There's been a new set of extra-strong valve springs put in the 290M since it
first came out, with tension upped from 85 lbs to 145 lbs. That's to help pull
the valves back from being hammered to shreds by the piston heads.
But here's the catch--it's not vehicle speed that counts. You can be doing
15 MPH, and still overspeed. The main danger is-
BRAKE &ACK ) DOWNSHIFTING-And using too low
POEFRE a gear. If you're running with high
P. E-A- S- E. '' RPM, and don't brake back before you
S downshift to tackle a hill, those 20
Setra wild horses and all 380 of the
branded herd are going to kick up those
S"." RPM's still higher.
Lose power, and you've got 27 tons of tractor,
plus whatever tons of 18-yard scraper and dirt
on behind, that you can't herd. Your only prayer
is that there'll be air enough in the 4 reservoirs
to stop you before you meet a mountain.
BUT THE BIG REASON
FOR LOSING POWER ON
YOUR 290M Is SPEED! L
TO SLOW POWN!
Thert's a pair of 1
srrumcnr panel that c(
insurance agents again
)our tachometer an
ter. hour i.nh % ill tel
This means one thing, which you'll watch like a hawk
-Never, but not ever, will you downshift for braking
effect. Instead of getting braking from the powerplant,
you'll get engine speedup from the shove of your vehicle's
weight. Your governor won't save you-all it does is
chop the throttle at the top end.
Even if you're not feeding fuel from the accelerator,
or as some throttle-jockeys say, "off-gassing," you can
get overspeed in a split second.
helps on your in-
uld be your twin
nst such calamity
d your speedome-
I you when you're
I l, ,,
You do it by halves, so Make up
a table like this, and not only paste it
on the dash, but in your mind:
I ..... ............ ... .u.. t.... GEAR GO
Smomeni But ) our speedometer will tell SET OVER
0o u when )uu're going too fast to get 4th 35 MPH
down inro). lo er gear, because certain 3rd 17 MPH
speeds in MPH are just too much for 7r d 8 MPH
,i curtain gear settings. If you're going 1. 4 MPH
faster than the next lower gear can
Q l allow. you don't dare downshift.
NO HERE'5 ANOTHER
SOTABOO- NO COASTING/41
I'M PE-OIL- FREE-WHEELING-Kicking the clutch out, or going to
PRATEP' neutral can be bad in 'most any heavy equipment if it's
V- followed by going back into gear at good speed, because
S it's such a strain on shafts and gears. It's double poison
on this 290M. True, there's no clutch pedal here, but-
Even if you brake down to go back into gear from
neutral on this rig, that torque converter doesn't neces-
sarily match the drive-shaft speed. Hitting the accel-
S erator a fraction of a second early, before the engine RPM
and vehicle speed settles back, just invites red-lining.
Besides, the oil pressure drops when the engine idles. That little red light in
the middle of the left dashboard panel comes on when less than 20-PSI pressure
hits, and you can get oil starvation fast when you rev up.
But let's say you get away with high RPM, brake back, and don't blow the
top off the engine. There's still another piece of damage that can come from
using the wrong gear. That one's big, too.
OVERHEATING -That torque converter can boil fast if you use too high a gear
or lug along. About 200 or a shade over is normal, but if that hand starts reach-
ing for 250, watch out!
The thing to do
/ is brake back, if you
next lower gear
S- never two gears
.S V % at a jump.
Then check the temperature again, along with a quick
look at the transmission oil pressure gage.
If it's not at least 180 PSI, stop and shut off the engine,
with a 3-minute idle period first-don't just chop the
Still, your main worry here is what's
called torque converter stall. You can
even get it standing' still, using too high
a gear to move out. It's bad because it
overheats the oil, which means ruined
seals and shot bearings.
A'^ Q BAR BESIPES THE POWER-BRAKE
r \ ~.. IOMPLEx AND SUCH RANGERS -
HERE ARE SOME OTHER WATCH-
,\ OUT-FOR ITEMS.
TURBOCHARGER--It's a 4-star per-
former, all right, because- brace your-
self -it revs up to spaceman speeds,
5- 55,000 RPM-and any little abuse can
mean metal confetti.
The main way to keep the air-cram-
mer from shredding is, to never goose
the engine when you first start up, but
let it idle easy, not over 1000 RPM.
You let that go on for 3 to 5 minutes,
letting the bearings get oil.
HO GOOSING, PLEASE
And when you quit for the day, you let the works idle down. You'll know
never to kick up the RPM's and cut the switch, because oil is fed to that turbo-
charger system from main engine pump supply, and it takes as long as 6 minutes
for the supercharger blades to quit turning. Nothing that turns at such reach-
for-the-moon speeds can stand 6 minutes with no oil pressure.
BELTS--Air Compressor and water-
pump V-drives have to stay tight.
Otherwise you lose generator charge '
and the compressor shaft wobbles into
an oil leak and breakdown. Check com-
pressor bolts close.
FUEL LINE --All support brackets have
to be in tight, or the line will for sure
break at the head. Check every day.
That cable northbound out of the tachometer drive is vital. It hooks up to the
overspeed governor on that bracket over the intake manifold. Keep it water-
proof tight, else it'll rust inside. This dope's not in your TM 5-2420-206-15, but
it's in the manufacturer's TM supplement in your overpack kit.
UNIVERSAL COUPLING-This big $900
ball joint on the back can get you into
all kinds of predicaments.
First off, take a glimpse at the tapped
block, adjustment screw and coupling
adjustment of the universal coupling. -
They're meant to hold the coupler from banging around. Draping wire rope
or cable on 'em could mess up the scraper eyes, so proper checks and maintenance
is the answer.
There'll be an even better lock for this coupler in the works soon, but for now
the word is a sharp eye and regular attention.
Z DIFFERENTIAL BREATHER-That breather
gets plugged, dirt and guck seal the air
I hole, and pressure inside forces GO 90
o 2 oil onto your brake drums. The preven-
S 3 tive is, check that breather every day
8 at the same hour, and oftener if the
7 6 going is dirty. That baby is one of the
worst problems you'll have.
But the cure for oil on the brakes can be only having your support replace
the brake shoes, all 10 of 'em. It's a multi-shoe style brake, and all the blocks
hate to be equally new or equally) worn. \ I i
HOOD REMOVAL-Tip )our support
off. first time you'ree in the shop, that
drilling a hole over the front hold-
do n bolts. right through the housing.
can make it lots easier to get that hood
off and on. Then a socket wrench can
get the bolt eass, instead of ks turn at
AIR-HYDRAULIC LINES AND COUPLINGS-
They go over like the cables of a sus-
pension bridge behind you to that coup-
ler assembly, but they can get cut by
rocks and snapped in turns. If you get
a break, the only thing to do is head for
the shop, slow'n' easy, because you can't
control that scraper without 'em. Be-
sides, you'll lose fluid and pressure, or
c AIR TANKS-]
BLEeec u r brake failure o
TOH n.ATcy '^ valves is rough:
Cousins to the skid
shoes, tie 'em in "up"
position until ncidcd.
You can protect these
gougers by ala). s mak. WATC THOSE
ing sure )our blade is
up before )ou go to
Every time you start or stop work, use
I reservoir drain lever to blow out the
se you could have bleeder valve leaks or
n a bad hill. Besides, replacing bleeder
Sthe bottom guard plate has to come off.
FUEL AND HYDRAULIC TANKS-There's no turn stops on
either the 290M or the scrapers. Whether the name is
Euclid, LeTourneau-Westinghouse, or something else,
that scraper has no safer against turning too sharp. If
)ou take a corner roo harp to the right Ithar's anything
oier 85 degrees. sou lose hydraulic: if too much angle
left. your fuel tank gets crushed. And if ansbodx 's riding
there ahen .ou do it. it's taps for sure. The onls place to
ride this vehicle is in the cab
SlID SHOES- If ou'rc
not going to work in
sand, take 'em off.Other-
v ise the 'll break off
I T- |
I U L1 I
Sir do n with support and turn ro the oserpack pages that tell about welding
and the rods you haie to haxe. if such repair gets necessary. Other ise a whole
nc" front end will ha\c to come. and what femme vanrs to change clothes right
in the middle of a dance?
USE THE PLASTIC
Want to stop green corrosion in bat-
tery cases on your emergency light set,
FSN 6230-542-6680, or similar?
You can line the cases with the plas-
tic shipping bags the batteries come in.
When they're fouled up, replace with
something like Bag, Plastic, Polyethyl-
ene FSN 8105-401-2010, in Fed Cat
C8105/15-IL-A (Jan 67). But keep 'em
pasted back for plenty ventilation, and
change for clean ones every now'n'then.
Liners cut from sheet plastic like FSN
9330-756-2151 from Fed Cat C9300-
IL-A (Apr67) will do the same job.
LOWER THAT BLADE
Earthmover blades-like on graders, scrapers and dozers-can be ruined by
dropping. Even with power off, a yank on the wrong lever can do the damage.
Blocking up in parking will stop such wrecks. Just let the blade down easy if
you're in a paved parking lot. On unpaved ground, use timber or flat-faced rock
to support the blade. This also helps to make the outfit stay put if it's not on
NOTE ALREADY ON
,, ANCIENT SAYING!
LET THAT POUTY PET SET
*- -9.T I-
If it's a full-tracked tractor and she's conked on you, let nobody try to tow
your mad machine ... at least no further than up the ramp to the draggin' wagon.
This breed of cat has a bad habit of burning out transmissions if towed with-
out the engine running-same as a good many tanks.
What happens is, the oil pump won't go without the engine to horse it-and
the transmission turns over whether there's oil in the bearings or not if you tow
the beast. So no tow, no push.
PLUG CAN BE A DRUG
Your D7E tractor can get drowsy from poor crankcase ventilation if the
plastic shipping plug isn't taken out of the engine breather.
Those plugs are put in at the factory, for sealing purposes. If the D7E is run
with the breather blocked, the air circulation to the crankcase will be cut off
and pressure will build up and make oil gush past the rings-which means
caking and excess oil burning. To take the plug out, reach up inside the
breather pipe where it ends near the bottom of the engine block.
A fl c Ii. l roeI m pubfirarons
of mnhrt r Ogoanrgm .onal Maintl.
noance Prionnol rhai .I o lisf ro'nplld
Irom recen Adronr GeneroQl D0rt-
bfe.n Ceprer uflnse,. Fo. compfre
de. o.lih Do Pan JIo-" and Ch d
115 De d66 and DA Poa. 10.6 and
Ch I II Oc 66.1
IM -3431.202-25P, Mo, Art Welding
Mafh Gn. GFD, 300 AMP DC ARC.
Hobarl GB1318 I5.
IM 5-3801.237.12. Mar. Roca Grader.
Moator.d. DED. k 'arlliel.
I.lourna.a Wa.lpgraole 4OHA0
IM 5-4310-104.25P In Comp..e.sI
Gaco E.g. 5 r'1, I'. o', lotr
easl.ngna.l IbVCH .33
TM 5-4320-142-15. MC. P.mp AI1
Flame Liqua B.ulk toanle. GiD 3150
GPM Capal 10 FI Hd. h hi Mia.
Go man I.pp 84CI 5 ,D06J1
TM S-6a65-200-25P, Mao M.l. De-
lcr.-g Sel. r,k M ld A.oIa aod A,.alo
I4 V. DC B.dge lpe Deat or. Ian
MlBAl W.rl veo WC32I
TM 9--00S-297.-70. Ap.. IAT.102
IM 9-10052971.ESC may 1IA 10?A
TM 9-1330-202 25 AI.. AH IG
IM 9.1410-250-1SP/2/1. Feb
N he Hre. N." e He'. Imp
IM 9.1430-250-15P/3/2 Ap.,
N.Ie Hei. NUe H,[ Ir.p
IM 9-1430-502-12/1 mar. Halo
TM 9.1430.-50.12/3 Mao. ha..
TM 9-1430-513-12/2 Apr. Hrio
TM 9-1440-250-15P/1/, Mar.
N... HeR. N.Le her; Irp.
tM 9.1440-2 0-15P/4/1. Ma,
N ke.nrr. N s Mere imp
EM 9.720-21B-E5C. Ap,' I 51
MISIAI ',., ran I.,1c
IM 9.2320-246.ESC. 6 ,. IrTl
TM 9-4935-304-15P/2. Apr. Sergeant.
TM 9-6920-461-12P, Mar, ENTAC.
TM 10-500-12, Feb. Airdrop; Rigging
Typical Supply Loads.
TM 10-500-17. Feb, Airdrop of Sup-
plie, and Equip Rigging CW.BW Water
Prejlormenl Deconilom.nl on S.e
IM 10-5DO-J6. Mar lgg ig -' .ran
TM 10-500-39, Mar, Airdrop, Supplies
and Equip Rigging Container Delivery
TM 10-3930-215-25P, Mar. Forklift
Truck, Gas; 6,000-Lh Cap. Minne-
apolis.Moline MY60RS, MY60MC NRS,
MY60MC RS, Army MHE 171, MHE
TM 10-4940-201-25P, Feb. Cleaning
Mach, Barnme 4310CA, Army SPE 19,
Barn.e 15801CA, Army Mdl SPE 19A.
TM 11-1520-217-20, Mar. CH-54A.
TM 11-3895-203-15, Apr, Reol Equip
TM 11-5805.367-25P/2, Mor,
TM 11-5805-367-25P/3, Mor,
Multiplexers TD-352/U, TD-353/U.
TM 11-5820-536-15, Mar, Repeater
Set. Radio AN/TRC-109(V).
TM 11-5820-613-15, Apr. Antenna
TM 11-5820-686-15, Mar. Radio
Receivers R-1394/UR, R-1420-URR.
TM 11-5825-202-12, Apr. AN/GRN-6
Radio Beacon Set.
TM 11-5835-209-15-1, Mar, Recorder-
Reproducer Set, Sound AN/TNH-4B.
TM 11-5895-366-15, Jan, Radio Term
Set AN/TRC-I 17(V).
TM 11-6625-1519-15, Apt, Voltmeter
TM 11-6760-213-12, Apr, Photo-
graphic Repealing LM-33 (1) Flash
TM 55-411, Feb, Mainc & Info Guide
TM 55-1510.201-20P, Mar, U-8.
TM 55-1520-209-20, Apr. CH-47.
TM 55-1520-210-20PMD, Apr. UH-1D.
TM 55-1520-210-20PMI, -20PMP, Apr.
TM 55-1520-211-20PMO, Apr.
TM 55-1520-211-20PMI, -20PMP, Apr.
TM 55-1520-221-20, Apr, AH-1G.
TM 55-1520-221-20P, Apr. AH-IG.
TM 55-1520-221-20PMD, -20PMI,
-20PMP, Apr. AH-1G.
MODIFICATION WORK ORDERS
MWO 9-2300-299-20, Apr, M728
Combat Engr Veh, Tank, Combat.
105MM Gun, M60/M60AI and Tonk,
Combat, 90MM Gun, M48A2/
MWO 9-2320-211-20/10, Mar, S-Too
Cargo Truck, M54, MSS; Chaslsis M61,
M63, M139D, Dump. M51, Tractor
M52, Van Elpansible. M2921 Wreck.r,
MWO 10-1670-207-20/2, Apr. Aeriol
MWO 55-1500.200-30/32, Apr.
MWO 55-1500-208-30/1, Apr.
MWO 55-1S10-201-20/3, May, U-8.
MWO 55-1510-203-20/2, Apr, U-6.
MWO 55-1520-203-20/4, May.
MWO 55-1520.204-20/8, Apr,
MWO 55-1520-209-30/41, May,
MWO 55-1520-209-30/51, Apr,
MWO 55-152-1209-34/121, May,
MWO 55-1520-209-40/3, May,
MWO 55-1520-211-30/16, Mar,
MWO 55-1520-211-40/2, Apr,
AR 385-17, Apr, Fire Exl for oail,
Marine, Amphib and Off-the.rood
FM 23-20, Mar, Davy Crockltt
SB 9-196, Apr. Replacement of Tool,
Kit. Armorer' By Tool Kit. Small Arml
SC 1000-97.C-E02, Mar, Comouflage
Not, Single Eng Aircraft.
SC 51i-99-CL.A04, Apr. Tool Kit,
Propeller and Ro6or repairman's Army
TB 9-1425-300-25, Feb, Sergeant.
TB 9-1425-425-25, Mar. Redeye.
TB 55-1520-214-20/6, Apr. OH.6.
TB 55-1520-214-20/8, Apr, OH-6.
TB 750-991.2 INSTAGI, Apr. A11
4Re on Pin-Paot 7t7 taWd Cae
You can now order publications for Change 6 (24 Feb 67) to TM 3-4240-
your Lighter (LARC-LX) BARC on DA 202-15 covers the latest scoop on use,
Form 12-33 for pin-point distribution, care and cleaning of the M17 field pro-
It's authorized as a write-in item in Sect tective mask. It also says the outserts are
I of the 12-33. Don't forget your account to be permanently installed and the out-
number. sert's plastic bag tossed out.
Sis for I OT*
C S r THE
P SER1 CE
G S0O0 EVENING FOLKS. MAY 'WE
INTRODUCE You TO KNUTBOLT TCRK,
TH' WORLD'S OLDEST ORGANIZATIONAL
MECHANIC --IN AN INFORMAL.
MAINTENANCEE F AST-
M R. TORK!.
WHAT PO 'OU
THINK IS THE
NOW ANP WHEN
-- WELL, BACK ih THE V REALLY?
OL 82 PALEOLITHIC HOW DID 'OU
BATTALION, MAINTENANCE TI EST THE
hAS SIMPLE... 5LC.ER I ACCURACY 4
SAYS I15 SPEAR DON'T / Or VOuR
FLY ACCORDING TO ADJUSTMENT?2
TM ... 1 SIMPLY SAW,
OUT TOPAY.. LOOK WHAT
YOU HAVE... WEAPONS, PLANES,
TRACKS WITH FINE TOLERANCES
... LIKE A LEEWAY OF MAYBE
I/0ooo OF AN INCH.
THEN, YOU RUN THESE
OVER ROUGH ROASP OR
BOUNCE THE BEEJEEBERS
OUT OF ThEM IN THE AIR..
ANP EXPECT THE
TO KEEP EA TICKING
LIKE A WATCH!
WILL YOU THAT'S PALEOLITHIC
TRANSLATE FOR "THERE'S THE THE MECHANIC
iT RBP. PEPENPS ON THE
I UB ACCURACY OF THE
SO, WHAT HAPPENS... HE
FORGETS THEY NEEP
TIME. TO TIME!
sI ,bdak~r~: :..- ,\ i
11 14092- 5212 Jp~
Tools and Support Items-
B 750-93-10/1 (19 Nov 64)
Nike TB 9-342 128 Mar 66)
Hawk TB 94900-520-34
(25 Feb 65) and Ch 1 (10 Nov 65)
Sergeant TI 9-1400-300-15/2
(14 Jun 65)
Pershing T 9-1400-376-15
(Interim Apr 651
M22 System T1 94900-461-35
(5 Apr 66)
ntac TB 94900-455-35
(11 Apr 66)
Light Target Missile -
TB 94900-417-35 (16 Dec 65)
Honest John TB 9-1340-202-35
(27 Jun 66)
Little John TB 9-1340-204-35
(15 Dec 65)
XM3 Aircraft Subsystem -
TB 9-1055-217-35 (16 Dec 65)
Each Armq Commodity Command
Now has One or More Lists on Hand.
They Keep You Up-Dated
On What's Calibrated
Be it Torque Wrench or Aircraft
STest Stand! a
Es. CHECK THAT
PA LABEL 80 PE CAL ON
"CUP, T T EQUIRMENT)T
13E SURE WHEN THE NEXT
CALIBRATION 15 PUE.1ZX
IF YOU WANT TO DISPLAY THIS CENTERPIECE ON YOUR BULLETIN BOARD, OPEN STAPLES, LIFT IT OUT AND PIN IT UP.
*v -"' -
NOW... HERE'S WHAT HAPPENS!
& THEY GET AN OUTFIT ALL
TUNEP UP AND REAPY
A LOUSE.../ !
MY MEN USED GAGES
'N' METERS ON EVERY
COTTON PICKING' NUT,
BOLT CONNECTION AND
..L WHEN WERE
NATURALLY HIS TEST
EQUIPMENT WAS OFF
HE PIP OUTTA
EVEN IF THERE'S NO PA ... ANP IT'LL ALSO TELL YOU
LABEL 80 YOu CAN TELL- IIF THE CALIBRATION IS A
WHETHER IT NEEPS I JOB FOR YOU, YOUR SUPPORT.
CALIBRATION BY CHECKING OR A CALIBRATION TEAM!
THE COMMODITY COMMAND TB.
THE TB ANtP THE PATE ON
PA LABEL 80 TIE-IN WITH PP FORM
314... WHERE C 5TANPS FOR CALIBRATION...
YOU CHECK wITH THE COCMMAAlT' COT ~AND'5
TB'5 'hHl;H LIST THE ITEM~ THAT 5HOULL
HAVE A LABEL... OR WHICH SHOULLPHA%'E
. AN ENTr' ON THIS FORAY -
-. t, ID l i it' K
5 AND THAT JurjioR,
iS AWY' %kAINTENANCE
1 '5 A LOT rAO'E
ST7HAN BACK IN THE I
OL-. 'LP PA, .
Every time you pull a Q (quarterly)
maintenance on your M48A2 or M48A2C
Stank, check both exhaust manifolds for
leaks. A LEAK
You'll have to take off the armor deck, IN THE
the fan guard and the fans. This is a little UMANI LD
bit of trouble but worth it because one tank BE A
out of every 4 inspected recently had a leak PISASTER!
in the baffle part of the manifold.
A leak in the manifold is a down payment on disaster because the terrific
heat of the power plant could start a fire that might burn up the whole vehicle.
Welding up a leak in an exhaust manifold is generally a waste of time ... so
if your manifolds are leaking, have your mechanic put in new ones. The left and
right manifolds are the same, FSN 2805-333-0468.
POSIN' TO m,,,
WATER IN THE
HOE HEA PLIGHT HOLDERS OF
HOE 'DOW N YOUR 11-48 ANP.,1-60 SERIES
TANK, CAN SHORT OUT
LIGHTS... APP THIS 5-STEP
ROuTINE TO )'OUR
REGULAR Q SERVICE'
- louos.n the couplinq nius ond
lake offl hr lighl.t If Ihe nui n
badly rurled you miglh have In
give Ihbl not flaon,1 a couplee ol1
gentle taps with a hammer.
If your company SOP
calls for them to be mount-
ed outside most of the-
time, do this:
Brush a 'gi.i coat of insulating
varnish, electrical, air drying FSN
5970-285-0271 (1 gal) inside the
holder and coupling nut and
around the threads of the base
and attach the light before the
Dry out Ihe holder and body
Hrill do the trkl l III ih re .i no h lo
sun handy open up the light and
yaoik It ain wIh a dry. dnn
After the coupling nut is in position, seal the junction of
the holder and coupling nut with the varnish and do the same
for the area where the holder meets the body, both front
Make sure the screws on the light body are tight enough
to make a good seal, but it's not necessary to brush varnish
in the junction.
This light work every 0 service will make your lights work.
I 1jt l itFin nr d o.prig ric
u hna.. -ih
IIrf-irvilr cornpiyurid In,. i.l --vi
d,!,,., ,i ind w .i r.n-a,-r i 11
Once sou hat h thehad-
lights in gtod shape these 'l
sram that %a% if 'sou keep
em on rhe siow age br.ck-
ets inside the tank when
not in use like it says in
your -10 TM.
- rn L
OIL COOLER LINE DOPE
Installing the oil cooler lines (the -20P calls 'em tubes) on your CD-850-6
or CD 850-6A transmission takes a little more "smart" than you would think
from reading about it on page 2-239 of your -20 TM.
Here's the no-sweat way to install lines ...
4. Now install the other tube on the some side in the some way, making sure that it will not rub
against the first tube ond that neither tube rubs against anything else, particularly in the bellows
NOW... PO THE
TWO TUBES ONt (
S THE OTHER SIPE
THE SAME WAY! !Jh
TANK STARTER INSURANCE
If you have an M60, M60A1 or M48A3 tank, a CEV M728 or an AVBL launch-
er, your starter is a rugged piece of equipment, but it needs your help.
... AND THIS
O COULP HAPPEN
A AND VIDZI
Tap the starter button too gently like you were trying to send a message on
a telegraph and your starter relay chatters and gives off sparks that can weld the
relay to the contacts. When this happens you have a closed circuit that you can't
open and the starter motor overheats and spins itself to death.
On 'tuther hand, you can get the same result by being too rough. Holding
down on the starter for over 15 seconds at a time will overheat the starter. So,
if your engine hasn't kicked in by 15 seconds, let your starter cool down for 3
minutes before you try again.
HERE'S THE RIGHT WAY
The right way to use the starter is with a firm, steady pressure like you were
ringing a door bell for not over 15 seconds.
Another thing you can do to insure your starter is keep your batteries up to
full charge. Well-charged batteries help prevent relay chatter.
A new, positive, ON-OFF contact starter switch, FSN 2920-930-6203, (P/N
11599638) coming into the system by MWO action should give you more
The MWO will cover the M60, M60A1 and M48A3 tanks,CEV M728 and
the AVBL launcher.
Until you have the new switch installed in your vehicle, you'll need a firm,
steady thumb and fully-charged batteries.
BUT WHAT DO I
They'll never help the vehicles win a beauty prize, but that's not the idea of the
strips of masking tape and pieces of corrugated carton.
We use the pieces of carton to cover things like headlights and vision blocks on our
M577 command post carriers during sandstorms. The tape holds the things fast .
and the whole works means no pitted or busted glass.
CWO Dwight Beck
Fort Carson, Colo.
(Ed Notev-Cheap insurance that can be used on other vehicles.)
I OUT TO LAUNCH
SstIf it hasn't happened to your armored
vehicle launched bridge ..blocks. read on
so you'll know what to do so it won't
SSeems h that the safety pins that go
through the quadrant lock pin can un-
fasten- like when the extended bridge
is dragged along the ground. The safety
pins drop out of the lock pin. And the
lock pin works its way out of the quad-
(Ed Note tt cn rant after the bridge has been folded.
i If Then comes the day that you go to
SIunfold the bridge again. With the lock
S;| pin missing, the bridge collapses leav-
S 3 ing you with a pile of busted and man-
-Sure pays to make a habit of checking
(HE(K SAFETY PINSth the safety pins before you fold the
d te bridge ... and put 'em out of sight.
We've looked high and low for an FSN
or part number for the float pad on an
M127A1 12-ton stake semitrailer.
SSG G. H. R.
Dear Sergeant G. H. R.,
It may be a float pad without a num-
ber in'TM 9-2330-207-14 (Jun 61) ...
but it's a Board, Ground Jack, FSN
2510-741-7585 in FSC C2510-IL-A
(Oct 66). 4 7.1
GROUND JACK BOARD
IF IT'S TOWED... NUMBER IT NEXT 1
YOU'RE NUMBER U?
ISN'T THAT LUCKY.
IrM NUMBER 33! USO
The days of guesswork on numbering towed vehicles came to an end with the
printing of Change 2 (Jul 66) to TB 746-93-1. Every towed vehicle must now take
the number immediately following the number assigned to its prime mover.
Para 9j (1) of the change puts it in black and white. No doubt about it.
'/4 THRU 11/2-TON...
TRAILER MARKING SWITCH
We just got some M107A1 1'2-ton water tank trailers with their "US Army" and
National symbol side markings located just the opposite of our older trailers.
Which locations are right? If the new ones are, do we change the old ones to agree?
MSG M. D. L.
N H E R E...Bij [- m IW H IC H ?
Dear Sergeant M. D. L.,
Both setups are OK. Ch 2 (Jul 66) to TB 746-93-1 shows the new locations
-star on side-rear and US ARMY identification and registration number on
side-front-for all trailer /4-ton thru 11/2-ton.
But you don't change the markings on your older trailers except as spelled
out in para 4a in TB 746-93-1, that is, when the trailer needs repainting or the
old markings are in such bad shape they need replacing.
WIRE ROPE LUBE...
Use only new engine oil to clean and lube winch and
Some tactical vehicle LO's still say to use old crankcase
oil. Those LO's are being changed because used engine
oil is contaminated with stuff like acids or alkalis. This
is bad for wire rope-ruins the core and weakens the
steel. ,, r.
Trying to get double use out of oil can cut your cable's u1i N 1I O
life in half. ON YOUR CABLES
BATTERY BOX DRAIN TUBE...
PIQUED FOR A PIPE?
3/4 21/2 212
I D. ID
FSN 4720 235-1776 FSN 4720 958-0339
USE ROUTING IDENTIFIER CODE S9C
* '. ,,*,-, -, .--- ,"
DON'T STENCIL COMMERCIAL VEHICLES...
POST THOSE TIRE PRESSURES (
Is there a definite location for stenciling tire
pressures on commercial design vehicles?
AR 58-1 says nothing and TB 746-93-1 only
covers military design vehicles.
CW2 F. A. I.
CHEVY '67 32 LBS SHOWS
BICYCLE- 50 LBS THIS FOR
FOOTBALL- 13 LBS HANDY?
It's no longer a requirement to post
tire pressures on commercial design vehicles.
Just post all the necessary tire pressures for your fleet on or near your motor
pool's air ouriLt sou don't have to mess with vehicle stenciling, Sir. I think
slou'll IIk. I i hc rcr. .
_____ 45 W
FIX FOR SCOUT
Save both time and money GET A 9" LENGTH
when your IHC Scout V4-ton / F "X Ya' STRAP
truck's suffering' from a broken IRON AN M TWO
door window frame.A simple NO. 8) I"MACHINE
fix makes it good as new. SCREWS.
Bend the strap to fit
the shape of the door and
window frame either
front or back, whichever's
broken. Drill 4 holes and
mount it, using the top 2
screws on the door and
the 2 machine screws for
"MODIFICATIONS" OR "IMPROVEMENTS"?
Dear Sergeant L. D. G.,
Those fixes in the EIR Digests are just recommendations.
They're considered simple improvements and changes which don't require an
MWO. They're not controlled and not reported as MWO's are, and are con-
sidered normal maintenance actions.
Whether these simple improvements are applied to your equipment is up to
your CO. The TB is his authority.
46 H -
When you're replacing light switch, FSN 5930-307-8856, on tactical and
combat vehicles, be sure to tighten the cable plug nut.
A final, good twist by hand ought to be enough to keep it from vibrating
loose and causing arcing between the plug and switch contacts.
The spanner wrench in the Automotive Mechanic's Tool Kit also works on
the plug, but you have to be careful behind the dash with it, what with all the
wiring for the different switches.
It also pays to remove the battery ground cable.
TAK TRUCK... FILTER BY THE NUMBERS
Refueling of aircraft is getting' better 'n better less chance of water or other
foreign stuff foulin' up the bird's works now that the M49A2C 2/2-ton
tank truck is on the scene.
ELEMENT 1.iS t S
CANIH 4 FUSE
A new water separator-filter system, with go-no-go fuses, is among features
of the M49A2C. You get all the dope in Ch 1 (May 65) to TM 9-2320-209-10
and Ch 1 (Jun 65) and Ch 2 (Dec 65) to TM 9-2320-209-20.
FSN's for the filter elements and go-no-go fuses will be in the newest TM
They're already in Ch 2 (May 66) to TM 9-2300-223-20P as Element fuel
filter, FSN 4330-983-0998, and Fuse Assembly, fuel filter, FSN 5920-903-0527.
AIR MOBILITY HUEY (UH-1) HARNESS WON'T LOCK?
TRY THIS FOR SIZE!
A jammed inertia reel can ruin your whole day -and give pilots a real head-
ache to boot!!
So, if your favorite throttle jockey says the reel won't lock the shoulder harness
in either the manual or auto position, don't throw the whole kit-and-kabosh
away! Could be that a simple operation will put it back in condition.
Inside the inertia reel housing is a roller drum that the webbing coils around.
A webbing shield-either plastic or aluminum-keeps the webbing on the
drum and out of the locking mechanism.
Reels, P/N 0106176-0, with serial numbers between 32,000 and 45,000, have
a plastic webbing shield. This shield sometimes gets a wee bit out of shape. It
can slide off the drum into the locking dog-jamming the reel for real so the
harness won't lock.
Al PULL IT
When this happens, use a gizmo, gadget, or whatchamacallit to reach behind
the shield and pull it back out of the locking dog area. If the shield comes loose
don't fret-just push it back into position.
A No. 11 crochet hook makes an ideal tool for this job. You might even try
a knitting needle--knit one, purl two-knit one, purl two ....
Reels with aluminum shields don't have this trouble.
A THE FSN
CROCHET FOR THAT?
HOOK i .
HUEY WHEEL LEAK-STOPPER
OPES CANS, HOW ABOUT
CORKSCWS ANP SNIPPIN' MY
/ TIGHTENS GLAND PGA
'ur M! CIGAI?
Comes the time when the Huey (UH-1) ground-handling wheels leak hydraulic
fluid and you can't get pressure up, here's a nifty little tool to have on hand.
We found that the leak was caused by a loose gland nut so we made up this tool
to solve the problem.
To use the tool you just insert the two prongs into the nut and make with the muscle.
The packing then become compressed to form a tight seal against the pumphandle
shaft, stopping the leak works like a charm.
Sharpe Army Depot
(Ed Note-Good show! Sure beats using a hammer and chisel to tighten the
nuts ruins 'em every time.)
Removing the magnetic chip detector insert plug at the Huey (UH-1) 42' gear
box is a hands-only job-not one for pliers!
Sure, it's a little hard to do-it was designed that way. But when you're
pulling an Intermediate inspection on the plug you don't want to ground the
bird because of broken lock pins on the plug.
So, when you lift the rubber cover to the plug, unhook the electrical wiring.
With your fingers, try to push in the plug as far as it'll go.
Next, turn it counter-clockwise slowly to release the pins from the plug holder.
If you push harder it's no-go. PUSH IT IN... 0K... NOW, TURN--
Hold it! Don't grab a pair of duckbill pliers-or any kind for that matter
-to turn the plug. You'll break the pins for sure and have some explaining
If you're the butterfinger type, call your friend Grunt the Gripper to remove
the plug by hand. Just don't use the pliers, p-u-l-e-z-e!
PUB SNUB ... OR FLUB?
T-55 engine fuel control regulators have been left off some engines arriving
at depot for overhaul, creating a shortage that holds up the works.
Change 1 (1 May 64) to TB AVN 24-16 added the regulator to the list of
accessories to be shipped with gas turbine engines.
FOR CRACKED HEADS
We do quite a bit of repairing with Riveter, blind hand, FSN 5120-357-6065,
which is in our Aircraft Organizational Maintenance Tool Kit B.
I Fact is we have a few broken pulling heads we'd like to replace without
requisitioning a new riveter. Where can I find the individual heads listed?
SSG K. A. B.
" Dear Sergeant K. A. B.,
You'll find the stock numbers for these heads listed in Fed Cat C5120-
IL-A (1 Jan 66) Vol 2, page 4.88.
FSN NOMENCLATURE P/M
5120-620-3016 i Right Angle Pulling Head RV380-6
5120-620-3017 j Right Angle Pulling Head RV380-5
5120-620-3018 Y Right Angle Pulling Head RV380-4
5120-620-3024 % Standard Pulling Head RV355-4
5120-620-3023 Y Standard Pulling Head RV355-5
5120-620-3022 Ki Standard Pulling Head RY355-6
7'\. O ,UH
VA- ~ TMESE
About those survival kits in your outfit ... SuRLAL
Syou won't find maintenance and inspecting info RATIONS ARE
Packed with them. TM 55-405-1 (21 Jul 66) on PEUCLIOU.
general aircraft practices should fill the bill, tho. HOPE THEY
Chapter 6 has such poop as inspecting the FORGETTING
AN/URC-4 radio, the cable assembly, and the REGULAR
SBA/1264-U battery in the life rafts... eye it! INSPECTIONS.
If you're the air-r)pe in charge of the pararaft kit. leg holster kit or vest kitr.
better run thru a copy of the brand-spanking-new TM 55-8465-206-13 iDec 66)1
on survival kits. Chapter 3 lists the PM inspection times and those items to be
checked b) the flight surgeon and avionics repairman,
ALAS-MAKE WITH THE GLASS!
When you pull your PM daily on the HIT ALL AREAS ON CHECKLIST -
Chinook (CH-47), you hit all the areas
called out in the checklists, that's for
But there's one area (sequence 6.4)
that needs more than a little looking
into. Seems that the forward synchron- ESPECIALLY...
izing shaft adapter and plate assemblies-
may develop cracks. ADAPTER AND 4 POWER
New assemblies are being beefed up PLATE ASSEMBLY MAGNIFYING
and shot-peened for added strength.
Until they get into the supply system, l
tho, be sure you use a 4-power magnify- .
When you eye the assemblies, P/N
114D3067-2, focus on the lug areas
around the coupling attachment bolts, (i FP (.
the key slot area and the coupling plates
next to the adapter lugs. No cracks are
AV T "I\
I, rr IF
"~""%"as~a~""" Ii~ae~a ~ ~~8E1~asassl~1Iswraa~al
S Too much of a good thing is as bad, maybe worse,
than not enough.
Talking' about torque.
A Chinook (CH-47) went down in hostile
territory recently and had to be retrieved
because the forward transmission oil filter let go.
It seems somebody put so much muscle on
the filter retaining nuts that the mounting studs
actually pulled out of the transmission housing.
'Course the only way to tighten those nuts is with
a torque wrench.Without one you never know how
much muscle you're using.
The next time you take the filter out for inspection
and cleaning, remember-those studs get lubrica-
ted with MIL-L-7808 and the nuts torqued to 35-50
inch-pounds ... no more, no less.
OTTER THINGS.. JAK' THE BOUNG TEST
Is there another way to check for low pressure in our Otter (U-IA) tail wheel shock
strut without jacking up the whole shebang and shooting in some air?
SP5 W. P. W.
Dear Specialist W. P. W.,
You can make a visual check without servicing NO BOTT
the strut as called for in para 1-93 of TM 55-1510-
205-20 (7 Jul 65).
Put a lifting bar thru the lifting tube in the rear
fuselage. With a man on each end of the bar, bounce
the wheel vigorously. If the strut doesn't bottom,
Have you been tuning your Otter's (U-1A)
IT'S DOW N R-1340 engine by the book, TM 55-1510-205-20
(Jul 65), but can't quite make it purr like a
WITH THE kitten?
Don't sweat it.
H OOK! When you put the Time-Rite indicator in the
spark-plug hole for an internal timing check,
para 5-250f says that the hook end of the indi-
cator's pivot arm must be UP.
SNot so, wrench pullers. In order for the pivot
arm to move the slide pointer to the exact timing
position of 25" before top dead center, the hook
end has to be DOWN.
When the pub is revised this poop-and up-
dated figs 5-42 and 5-43 showing the hook down
-will be included.
Meanwhile, have another go at timing your
r (OMMO TPU(K
KEEP 'ER IN SHAPE
Hey, common budd) -tpe!
While you're living that sheltered life atop the bed of a vehicle that's parked
for a time to serve as a communications castle, remember the truck can get joint
abuse from lack of use.
Take, f'rinstance, the AN/MRC-54(V) radio repeater set, AN/MRC-69(V)
radio terminal set or AN/GRC-26() radio set on the bed of a 22-ton truck or
the AN/GRC-46() radio teletypewriter set nestled in back of a %-ton.
The truck needs preventive maintenance, too. You say you know it, but you
can't move the truck because of the antenna cables, wires grounding rod fixes
and need for continued equipment operation.
Don't sweat it 1
Jack up the truck, put blocks under the axles to allow free turning of the
wheels, start it up and get the drive train moving.
You can exercise your vehicle during the weekly PM period on the electronics
'Cause parking in one place a long time will allow rust and corrosion to creep
in as well as stiffening of the joints and bearings. The brakes will rust and freeze.
And remember, when you're blocking up the vehicle make sure that it's stable
and as level as possible.
TB ORD 1045 (Sep 62), Administrative Storage of Army Vehicles, fills you
in with good stuff for a vehicle that stays put for a period of time.
FOR COMPATIBLE FM SQUELCH...
Is squelch compatibility with the new FM family radio sets squeezing you
for want of a handy reference telling you what goes with what?
Like are you trying to mix the old with the new and coming out blue?
..ANP PIN IT
(CUT TH15 OUT! WHEREYOU CAN
^ | GLANCE AT IT WHEN
OU NEEP QUICK
A few reminders:
The frequency range of the AN/
PRC-8 doesn't maich the new sets, so
)ou can't communicate with it.
However. )ou can go with the AN/
PRC-9 and -10.
g 9 1 l
0 il C .... -4 I
As for sets not on the chart, namely, the Standardized sets using the RT-67
and RT-68, you can use the PRC-9 data for the RT-67 and PRC-10 data for
Any of the radio sets in the chart, or those using the RT-67, -68, can com-
municate with each other with both squelches off ... providing, naturally, that
they have the same frequency range.
The new AN/PRR-9 receiver and AN/PRT-4 transmitter are compatible
with the sets in the chart for anything in the 47 to 57 megahertz megacyclee)
In retransmission, you've got to consider squelch compatibility of each pair
of radio sets in a radio link.
SB LENS SWITCHIN' TABOO
Never cross up I R
LENES a catseye cover on N ( )
NOT. the SB-86/P INTER-
Sswitchboard's line CHANGEABLE-
signal with one from
Sure, the SB-22 indicator light lens (FSN 6210-284-0389) mates with the
SB-86 line signal lens (FSN 6210-500-2299), but they're as compatible as a cat
... and a rat.
B2(P DON'T MIX TEM! n D
"The extra thickness or metal band around the SB-22 lens puts a strain on the
magnetic attraction of the SB-86 catseye or line signal. It'll goof up the catseye
so it won't roll around right or won't roll at all.
Besides the stock number, a couple of ways to tell which lens is which is that
the SB-22 lens holder has a dull nickel finish and is thicker than the SB-86, one
which has a paint finish.
CR|MP TOOL NEEDS CARE, TOO
Are you fussin' when it comes to car- avoid the cake icing treatment with the oil or it'll goop up the tool and make
,," ing foryour MK-356( )/Gwiresplicing for a real dirt catcher.
kit 'cause it doesn't hold a good splice? One other tip. Make sure the screws are tight and present.
Don't sweat it. Pull yourself together After cutting off the X6-in insulation and releasing the retaining slide on the
/ and beam your eyes on some simple magazine, see that the splicing sleeve (FSN 5940-818-1774) has dropped into
service on the kit's WD-1/TT field the crimping chamber. You might have to jiggle the magazine in or out of the
ire TL-582()/U crimping tool that'll housing a wee bit but don't heavy hand it or you'll damage the magazine.
help give you the splice of your life. And, unless you have an extra hand your best bet's to let a wire team buddy-
Right off, you have to put a drop of type hold the two ends of the wire together while you put the pressure on the
oil in the head assembly's crimping handles.
SOh yes! Watch your fingers 'cause the alligator-like bite of those handles
SA DROP OF 01L could make you give a yell that would shame a coyote howl to the likes of a
sleeping butterfly on a bell.
I \ a WIRE CUTTER r(D u 1iT'
Incidentally, the crimped sleeve splice is self-weatherproofing, but to play it
doubly safe put a couple or three wraps of electrical insulation tape around the
splice if you're in a humid region where the wire will wind up on the damp
ground most of the time.
The kit, including sleeves, is in SC 5975-91-CL-DO1 (June 65).
You've got your Pin-
point Account Number so
you think your publica-
tion troubles are over.
Well, hold one! There's
more you've got to know
about getting pubs.
You'll want to know
about DA Form 17, Requi-
sition for Publications and
Blank Forms, and DA
Form 17-1, which is a con-
tinuation sheet for the 17.
That's the form you use
to ask for:
enough copisi of.
Totol Number of Pupes.
If you hove more thon 1
page use DA Form 17-1
for additional sheets.
If your outfit hus its
own Accouin Numberis),
include it here.
Be e ue to givefe reason
for a special requisition. If it's 7
needed to complete the initial by o
distribution, then soy so here. put t
S\ Currenit Dte. |
Never "cry wolf" und mairk ill
your orders "Speci i"--only those
you need in n hurry. When you
oneed to replace u pub that ias
become gii: sy o ro !4t utin 17
i e t ie route.
Wien you didn't get enouighli
pubs to m 'ke tie distribution re-
uiied b1 y your CO, itho order the
ineed, copies on !his iormi nd
cluck Itb SPiLIA i lo k
ui i ir i, yt i:iu 0tl lii Wit ii
u 1 0-4It
li ,l )-
lm r i C i li io ii
Your request for pubs
310-1 (Ai's, DA i'enm :
Pamo 310-3 (Ui's, O Ls,
DA 5im 310 ( iind>x
iir, U ry A Puii
Eastern Bouievard, B
iist( tll IM oo
C j T. ii
niow tor youur miirluo
ilen ls iit umiri co! e* I
cteg( y AI Id 1 oi hn i
chugiEi i oni sepI r(;: li
time if you chi k your
which (hanges r'e still !)
(hinge 2 to c pub, for
include lhe info thiit i:
so you'd only order
hpl c ill
(llo l I
Your complete i ddri
here. And don't forget
No need to repeat your DA Form 17 order for the same pub to the AG Publi-
cations Centers unless you get the word from them (on your Shipping Document,
AGAZ Form 944) that they cannot identify (Cl) the pub you want. They keep
your order on file and will ship it to you when they get it. It's listed on your :'
Shipping Document as DO for Due Out.
When you repeat your order for an item that was listed as CI, be sure to quote 'l
your source so that the Center can check it out. If you got it from the AG Bulletin,
then add in parenthesis after your listing, the Bulletin Number and the date of it.
Be sure to keep a carbon copy of the DA Form 17 you sent to the Center,
because they refer to the number on your requisition (6 a). For instance, you
asked for TM 9-2330-234-24P (Item 32) and C5, TM 10-3930-201-10 (Item 55)
and your Shipping Document was marked CI for those two items. When you
re-order, list the TM 9-2330-234-24P and C5, TM 10-3930-201-10 in their
,regular order on the 17. But after the TM 9-2330-234-24P (C4, 310-4), and
after C5, TM 10-3930-201-10.(Bul No. 1, 2 Jan 67). That info in parenthesis
will help the AG people identify the pubs.
If you're overseas, send your request airmail.
EIR & MD TB'S
You've seen those abbreviations many times so, you know they stand for
Equipment Improvement Report and Maintenance Digest Technical Bulletins.
But did you know those TB's are now good for 1 year from date of issue?
That's not all-they have a new numbering system.
The new numbering system gives you a clue as
to which command is responsible for the TB. The
numbering goes like this:
90 U.S. Army Strategic Communications Command 95 U.S. Army Weapons Command
91 U.S. Army Electronics Command 97 U.S. Army Mobility Equipment Command
92 U.S. Army Missile Command 98 U.S. Army Tank-Automotive Command
94 U.S. Army Munitions Command 99 U.S. Army Aviation Materiel Command
SOMETHING NEW ADDED
You'll find that some of those TB's have new added features such as a listing
of the current MWO's, as well as the forthcoming ones. There's also a new
section called "Simple Changes to Equipment".
NO PUB'S THE RUB?
,WWRITE TO THESE ADDRESSES
YOU CAN GET THE PUBLICATIONS YOU
NEEP ON ENGINEER OR QUARTERMASTER TYPE
EQUIPMENT MOST OF THE TIME, EVEN IF THEY'RE
NO ARMY TMs OR P MANUALS PRINTED ON
THE PARTICULAR ITEM YOU'VE GOT./
STILL If you find no pubs listed in DA Pam
S WHILE IL 310-4, its changes, or the bulletins from
S WRITE the AG Publications Center in St. Louis,
S Til then %ou need to ask for a manufac-
\[, c sl c urer's manual.
CCNN'ri Order ic just like you order a non-
srocked repair part. Send the request to:
M obily Equipment Command
S 7'.,!' I(" odiellow Boulev'r"
SGne make, model, serial number,
FSN. dale of manufacture, and contract
number of the item. Tell whether you
need an operator's manual, parts list,
repair and maintenance manuals, or all
SFor pubs on commercial-type elec-
tronic items used by the Army but with-
'our technical pubs, write to:
U.S. Army lectdronis Command
./ ATTN: AMSEL-MR-NMP-AD
Fort Monmouth N.J. 07703
r- = ~
~ A MA
Pcted e mw Setd
Hurry! Ask for DA Circular 725-11
(8 May 67) Removal of Components from
Assemblages and Sets of Equipment. It
replaces DA Circular 725-5 (30 Jun 64)
as extended by TWX 11-409 AMSSM-
ST-A (19 Nov 66). You'll need it for re-
questing, recording and reporting gen-
erators, compressors, pumps, chargers
and other major components which will
be known as "used with, but not part
of" your sets.
Updated Recods duletd
Records up to date on all your equip-
ment? Check it out in revised TM 38-750
(15 May 67)-effective 1 July 1967. It's
a major re-write of rules on operational,
maintenance and historical records-in-
cluding those for ammo and for calibra-
tion actions. Two forms are combined,
4 are dropped, 1 (for aircraft) added,
others are re-designed. Implementation
instructions are in DA Cir 750-20
(5 Jun 67).
Getting it Up
You say you've been looking for a
teeny-weeny incandescent lamp (bulb)
for that emergency marker light set,
covered by SC 6230-93-CL-EO6 (Jun
66)? Sweat no more. FSN 6240-155-
8681 will get a couple of 'em. You'll find
the stock number in FED CAT C6200-
IL-A, Vol 2 (Jan 66), on Page 4.326.
Would You Stake
NHot A4 Bm Steert
Replacing the steering wheel of your
tactical vehicle just because the jacket's
cracked a little or the smooth shine is
gone? World-wide TT-ATAC message
4-11839 (26 Apr 67) says such re-wheel-
ing on all tactical vehicles up thru 10-ton
is not necessary unless the wheel is bent
so it's unsafe, or the inner steel core is
cracked, broken, or corroded with rust.
/ M151 Moiwe
For tips on safe handling of the M151-
series 1/4-ton trucks there's TF 55-3707.
SIt's in color!
'4 Waie Skcze, 'attde
Your Beaver (U-6) develop a case of
the shimmies because of the wrong size
tail-wheel tire? Best eyeball TB 55-2620-
200-15 (22 Mar 67) for the right one.
Fact is, you'll find the proper tires and
tubes listed for all birds.
Better make a notation on the front
of your SB 700-20 (Jan 67), Army
Adopted Items of Materiel, to keep Ap-
pendix II when this SB is superseded.
That Appendix II is your Cross-Reference
of your old LIN's to new LIN's and it's not
going to be republished.
Your Life '- on
the Condition of Your Equipment?
Whenever you're filling
out a DA Form 2407 (or
writing to Half-Mlast, for
that matter,)give all the
info including: Nomencla-
ture, FSN, Part No., Serial
No., Manufacturer and
You can also help to
get your pubs when your
outfit changes its address
(that includes a new APO
Let the AG People in
St. Louis and Baltimore
know about it. Be sure
to include your Account