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UNITED STATES ARMY
THE CHIEF OF STAFF
che Chief olaf IMin in
hel I becanre the based on taff of iour Ar In otlh'lin
goals for the Arll Four a ,agMi-en.
Motivation, M'oderlizltio and shagtelC-, I I-anagent j
i.nt o enlphlar-;e anageielt
ofP.. laaZtW *^bII h-
, P. Mai"e' ul-not onl o i
Eer .ldie nair i-a nagr eqrUil'f" T eno ,slte
EverI' gar but of hi.- ui- ui equileL T er-of-3-
crew of a ge iiion-dollar bht.licopler or a quarterof'."
wn' illiolljoll ,, na ,p r ,- of Ile o
nmillion-dollar lank are tis tirl uf e nalIJP'r of ilhe e
eep-e iItem. And l i- i- equal I"r of a
seelion chief or a jeep drier.
Ulpnl-earl what it can alSd cal" do.
Kno" .r tequ -iln earn an learn where to
Know hou 10 kequIp it combat readc -. he Arm
Kno" ho.to e, Wer' N" are,
go len oU need helP. .lhereer O)O 10 Nr
nsainenane and suP) ,.l l d to
need. l ake it work for ou .
mental to n0i04on
our equ.pnle"'l s eit
Learn to take care of it
W. C. WESTMS EL ND
General, linited tae le
Chief of Staff
I I PREVfENTI MAINTEILANCE moNrm
Issie No O29 1970 SIrslo
IN THIS ISSUE
TM 38750A 611 DIE Lube
290M Trclor 54 DA 3316 3
RadJoacrs Samplle I Ge5i2 mtr TM 0I
0MM Dispenser SB 70020 64
Remanson, RG91000 II CBR M3ah M4
UM2 Laundr) Unl 1 ie Publ ar.a w I
PRlU.aphIk 82 Supply II, 225,27
T' term 12 42.43. 41.5
Pi.14 AC4M 17. II
rQlC-12 15 ANt Al-5 1
C2472/U 15 ConnIIor Cps 11
AIR MOBILITY 19-27
C047 1 fIsimnrs 2421 '
0ci0 1i SfmtCaInn 21
GROUND MOBLITY 37-48
5-TonTrf 37 43.45 B uLdiCam 44&
TonttPl 342 M alit .a 41,4
2 TonTrat 44,46 60-AW Airenemo 4
UMIAI .4 MII'IOg 5243
Mw a 54 155 MHottlo 4tm IK.
Lt aIl mo toi Pbl I w Ir pr-F5.
ou ba haw rpaenr hd I urltnm,
sprtmem it as kne. a fml y ISSM.
BISTI bITSIb In amcc mn wn
qurmmewt svalttul u BA ForM 124.
S.|ga M a
A guy like you in a fighting outfit
seldom has to worry about a big word
like "logistics." There are several
thousand military and civilian spe-
cialists spread from here to 'on who
do the logistics worrying for you.
But, sometimes it's a good idea for
you to get a little whiff of big things
when they happen in the Army's
logistics business. Now is one of those
Top-level logistics "wheels" have
been working on the supply-mainte-
nance business recently, and they
have come up with some big changes
in the way things are managed. You
may never hear about all of these be-
cause they are being made mainly in
higher-level supply commands. The
changes are aimed at giving you -the
fighting man-the equipment, repair
parts and supplies you need-when
you need them.
Take DA Circular 700-18 (Nov
69), for example. It gives the word
on what supplI outfits, from Wash-
ington all the way out to your own
DS unit, will do to make sure the
items you need are supplied to you
as fast as possible. and with the least
cost to Uncle Sam. j -
une way uns is nemg none is Dy
chopping down the big stacks of
equipment, parts and supplies in sup-
port units and depots, but they'll still
give you quick supply of what you
need by what's called "inventory in
motion." That means direct, non-
stop supply support from the source
back in CONUS to wherever you're
Another way is speeding up han-
dling of requisitions and shipping of
the supplies. That means every sup-
ply outfit will cut to the bone the time
it has your order in the works; also,
fast transmission of supply data over
communications networks is being
made even faster. More shipments
will come by air, like on the new CSA
Several special operations are
"Go." and others are in the works.
You mab have heard of "Closed
Loop" and "Fast Fix." There will be
All of this boils down to what
General Abrams called a "Logistics
Offensive" aimed at modernizing
and streamlining the Army's logistics
lo match the modern soldier and his
Keep an eye out for more to come.
II's all aimed at giving equipment,
repair parts and supplies to the most
important man in the whole U.S.
38-756,TUNE-UP% AND ..
*RK LOAP REPCEI
Its name's changed from TAERS to TAMMS.
It's finer-tuned in records-keeping rules; it drops
reporting on some equipment items altogether; and
it makes some needed revisions in forms.
Best of all, it cuts down the equipment user's re-
That sums up to a T (for TAMMS, that is) the
latest edition of The Army Maintenance Management
System, TM 38-750 (30 Dec 69).
Here's an overall wrap-up of major changes:
DA Form 2408-3, the organizational maintenance
form dropped by DA message and DA Cir 750-32, is
mustered out of service. It's now a dead duck (unless
your CO wants to hang onto filled-in log copies for a
Five forms are revised and streamlined to do a bet-
ter job. They are DA 2408 (log assembly), DA 2410-
1 (aircraft component movement and condition), DA
2416 (calibration data), DA 2417 (unserviceable or
limited use tag for calibrated items) and DA Label 80
(calibration tag). All these revised forms have new
All 10 DA forms of the 55-series for
watercraft are deleted from TAMMNS.
Better keep your records, though be-
cause new info is coming down the pike.
When equipment's at support at the
end of a DA Form 2406 report period
(20th/21st day of the report month),
support'll send you a breakdown of
supply-maintenance (NORS/ NORM)
DD Form 314 becomes a mini-work-
horse form in TAMMS. Besides the PM
schedule for equipment, you'll carry
there the equipment's organizational
and support record of NORS/NORMI
time, including that for commercial ve-
IS STILL NOT USED
FOR AIRC RAFT AND
IS NO LONGER
The accumulative DA 2406 materiel
readiness report dates are alined with
dates for unit readiness reports (AR
220-1 and AR 135-8). Dates are the
20th of March, June, September and
December. (Note also interim monthly
interval for items marked b\ asterisk in
the TM's Appendix "C").
Transcribing of maintenance actions from DA Form 2404 to other forms is
limited to organizational maintenance actions that require reports, and actions
that require support maintenance requests.
As authorized by DA message and DA Cir 750-32, both organizational and
support units use DA 2407 for required reports on maintenance actions.
Except for aircraft and selected mis- --...
sile items, reportable organizational 62=
maintenance actions are cut back to-_
application of MWO's, replacement of _
tactical and combat vehicle engines/
power packs, counting devices (odom-
eters, hourmeters, tachographs and -
such) combat vehicle tracks, replace-
ment of gun or howitzer tubes (40MM
and above), and filing of equipment
warranty claims where these apply. ACCURA
(Warranty claims are an added use of 15 THE KEY
the form that applies at support level, TOSUCCESS
too.) Don't forget to use the EIR (DA WITH FORMS.
Form 2407).to tell designers about your
ADDED DATA FOR GUNS
--' "* DA Form 2408-4 gets additional data
S on weapon identity, breech rings and
retubings needed to comply with TM
9-1000-202-35 and TB 750-231.
For the same purpose, recording of
-- gun and howitzer tubes and breech
mechanisms plus changes of these com-
ponents, with equivalent full charge
(EFC) rounds data, is required on DA
Top job for DA Form 2408-7 still is reporting equipment transfers, gains and
losses, bur it'll also be used to report usage data (hours, miles and rounds) for
tanks and combat and tactical vehicles as designated in the TM's Appendix C.
These reports are made quarterly (1 Feb, I May, I Aug and I Nov) for tanks and
combat vehicles; and semiannually (1 May and I Nov) for tactical vehicles.
Options are provided on use of DA Form 2408-1 at service schools and training
centers (for equipment not reportable on DA 2406) and at administrative motor
pools operated under AR 58-1 where equipment is dispatched by DA 2400. At
motor pools this applies to both daily and monthly DA 2408-1, if another means
is used to record info normally entered on the monthly.
Except for commercial vehicles, the... -
old TAERS line numbers formerly used
in TM 38-750 have been dropped. The
equipment category codes (ECC, from --
Appendix C) plus line item numbers
from SB 700-20 are used as a substitute
for the former TM category line num-
bers on DA 2406. On other records and
reports, line number blocks may be left
blank (it's optional with your CO).
The listing of equipment which requires log records (para 4-21) is set up by
ECC, except for commercial vehicles, which retain the 340000-series line numbers.
Appendixes B, C, D and E-on forms required to be submitted-are set up in
ECC sequence (again with the exception of commercial vehicles, which are in the
6-digit line number sequence).
,. MAILING GUIDE
Appendix B, mailing addresses for forms, has an
added section for EIR's on items not otherwise re-
portable. Addresses for these items can be identified
Sby Federal stock classification (FSC)-the 4 left-hand
digits of the item's FSN.
T ARMY METROLOGY All calibration data goes direct to US Army
AND CALIBRATION Metrology and Calibration Center.
CENTER The requirement for log records and data collec-
Stion on medical equipment is eliminated--except
for MWO records and reports.
Equipment failure codes, parts source codes (Ap-
pendix A), and calibration codes (Chap 6) are re-
duced. In Appendix A, equipment category codes
(ECC) are added as Table 20.
In addition to guidelines for aircraft
entries, para 4-13 limits entry of faults
on DA 2408-14 for other equipment to
those with a circled status symbol
or one that's less serious. (Only red dash
and red slash symbols for aircraft are
allowed on this form.)
Units with tools and equipment that
require calibration (TB 750-236) are
required to submit initial DA 2416's
(Master Record Card) to their calibra-
tion support for all items that get peri-
odic calibration. After that these forms
n are kept for scheduling and updating by
C -- the calibration support unit, if auto-
matic data service is available. (If man-
ual processing is necessary, the schedule
may be on DA 2416 or DD 314.)
After initial submission of DA 2416, the user may need DA 2416 as a receipt
for an item turned in for calibration. But DA 2402 may be used as a receipt-
instead of 2416.
In addition, using units are required to submit DA Form 2416's to a new call-
bration support unit upon relocation or inactivation, or when new items that re-
quire calibration are received or those on hand are turned in.
DA Form 2407 is still required for calibrated tools and equipment but only
to request maintenance repair actions and submit EIR's-not to request
Cast a sharp eye on those equipment lists in para 4-21 and the appendixes.
There're scads of deletions and some new items added.
,*wA"- ^sn^w-s w
/ \J ERE'S A FORM-BY-FORM
couNTDoow N OTHER FORM iHAR T 1
O S TO LOOK FOOnly major changes are the require-
ment to use this form for organizational mainte- Provides that status symbols in
r nance reporting and addition of detailed rules on block 16 (as well as block 7) will not be erased or
use for warranty daims. Submit monthly for aircraft S changed even if made in error. Such status changes
and selected missile items; ofer each reportable will be explained in the next open status line on the
maintenance action for other selected equipment. hnges call for use of AR 700-18 form.
IV. i'Rll [ II No major changes. But there are many changes in details on block codes for column d and provide for lining out en-
entries required for the various uses of the form. tries for an MWO that's superseded or one that's
SNote: Especially support's use of block 35 for entered as required but not applied at the time the
Requirement for use to identify war- NORS/NORM time. MWO is rescinded. I d ae
ranty daim exhibits is added, with entry of W in i fts to b t Rules added are guidelines on
Sblock 6, and the serial number of the end item from. No major changes, but if a compo- faults to be transcribed to this form for equipment
which the item was removed in block 27. Note, also, nent is shipped direct to a depot, blocks 26, 27 and I Principal change is addition of re- other than aircraft
use on equipment to be calibrated. 28 of copy 2 require no entries. quirement for usage report (para 4-8.1) on this i,
:f -: :form for designated equipment. For transfer use,
i n addition to new use listed previ Revised aircraft form. It's a pre- block 6 is left blank except for commercial vehicles.
ously, equipment BC rating is to be listed under addressed pocar For these vehicles block 8 gets the ACVC (from SB a
remarks for items reportable on DA 2406, with 700-20) or, if none, use ECC. For all equipment, No major changes on these aircraft and aircraft
other optional entries permitted on PM services. For blocks 9 and 17 are left blank. Use code W in mpnent forms.
items reported on DA 2406, put the equipment ECC i New form used by support to report blockJ 0 for commercial design vehides authorizednet
plus its LIN in the nomendature block which helps NORS/NORM time to user if equipment is in support for tactical use by TOE or MTOE. r
Sin making out DA Form 2406. When equipment's at end of report period (20th day of DA 2406 report l Major change on this form is for
transferred, its DD 314 goes along, month -March, June, September or December). /-L entries in section D (MWO). Basically the same rules
1 4m apply here as on DA 2408-5. Note, also, use for
ai ii In addition to a reduction of trans- i in i ammo in Chapter 5.
cribed actions, there are changes in rules on ESC and Fault symbols are-listed in descend- Changes inude use of carriage
CMMI use. If support action is necessary to correct a ing order of seriousness: X most serious, cirded num s fr twd wans in blck 4,f c mmer
fault, indicate this by entry of "DA Form 2407 X second, dash --third, and diagonal slash numbers for towed weapons in blaoc 4, cmmer-
(Spt)." fourth. cal vehicle ACVC or EC in that order of priority
fomh -1 *- in block 9, and FSN redesignatian entry in block 17 No major change.
g Major change is removal of re- when this occurs.
quirement for entry of NORS/NORM time in col-
Data reduction print-outs may be umn j. Use of this column is a local option. Also,
substituted for this form where ADPE capabilities note options spelled out for specific types of units.
exist. Marginal entry required at top, Requirement for entry of gun s to match.Forms redesigned with
1m71m ,' Ma rginal entry required at top, and howitzer tubes and breech mechanisms, with newrulestomatch.
l Principal changes are in reportable showing: End item on which the weapon is installed, EFC rounds when changed, ara rode ron dispo sition
items, ECC plus LIN use (instead of TAERS line its model and serial number plus the breech ring E of records upon disposition of the equipment. Para
S number), submission dates and source of NORS/ and number of retubings. Also, each new DA 2408- 4-21j authorizes disposal of any records no longer
NORM time (from DA 2407 and DA 2418 to DD 314, 4 must have date of last firing or recoil exercise required for specific items. They're to be kept or
then to this form). Separate reports are required for verified by the CO. Gage entries must be made by dropped at the CO's option. None are to be for-
each utilization code that applies to equipment in support, but may be carried forward by operator No major change warded unless a commodity command asks for 'em.
the reporting unit. or crew.
- Pamper it with PM and TLC. Treat
it right and your AN/PPS-5 radar set
may ger to liking you so much that it
will let no Charlie by it.
Here's the nirrtty-gritty of %our PM
1. Pipsy-5 gears are plated and need
no lube, graphite or such.
Lubing 'em can pack 'em up or make
the kind of mess that can send your set
all the way back to depot for repair.
2. Caution is the word if your set still
has the CX-8666/PPS-5 remote cable.
The male plug on theCX-8666 will
mate with the male receptacle on the
C-4610 control indicator if you acci-
dentally reverse the cable ends. Then,
when you push the cable connector into
place, the pins in the plug and recepta-
cle can be bent or broken.
l.2a5f. sE mlW. we 1W
So, look before you connect. The
male end of the connector goes to the
remote cable receptacle on the RT-692
You don't have the problem with the
replacement, the CX-12004. With each
cable, though, you gotta remember to
insert the male plug straight in. No
bending or wiggling... otherwise, bent
3. If you can't quite make your azi-
muth checks per paras 2-56 and 2-57
of Ch 2 to TM 11-5840-298-12, forget
about bringing in the R1703 azimuth
sweep potentiometer ("pot") by adjust-
ing it with a pair of needlenose.
You'd be reaching toward a repair
And, using an ohmmeter on the
R1703 pot can damage the pot. Check-
ing it out is a job for your support...
which does it with a resistance bridge.
Besides, in addition to burning out
the potentiometer, chances are great
that you'll also damage the ohmmeter.
A. The early model, hang-on type
power supply (PP-4450) runs hot after
long use. It should be shut down occa-
sionally (if possible) to allow it to cool.
Also, when you shut down the set, be
sure you shut down the power supply,
too. It has its own switch, and if you
don't shut it off, the power supply keeps
5 When you're through using the
set after elevating it, return the antenna
drive AB-992 to a "000" reading and
secure the drive push lock. That pre-
vents shearing the gear pins ... a way-
up repair job.
8. Those threads on the cavity power
and tuning adjust knobs tighten up af-
ter they're used awhile.. but keep the
vice grips and pliers away.
A light dab on the threads with sili-
cone compound FSN 6850-880-7616
will let the knobs move free again.
1 Finally, release the lock of the tri-
Spod legs before attempting to change
leg positions. Remembering that pre-
S'ens shearing off the 3 retaining rivers.
L iel -. ,lr-.* .. ~ __
AIM YOUR RECEIVER THIIS WAY
FOR AN IMPORTANT
Can-you think of anything sadder'n
not getting the word onyour AN/VRC-
12 series horn that your unit's been
made a candidate for the Freedom Bird?
It can happen ... if you forget the
following skinny on the RT-246 and
Be sure power is off when you put
the RT in its mount. Otherwise, you POWER OFF BFORE MOUNTING
burn the mount pins so badly that some-
times you got a GS-level repair job. You organizational mechanics should
take off the side panels regularly (like
once a week or so in the dusty or
Smuddy season) and clean dust and mud
from the transistor bank and cooling
vanes. A clue that a cleaning may be
long overdue: The blower motor keeps
running even though you're not keying
the set (using the transmitter). The
CLEAN motor keeps running when the set's
DIRI FROM overheated.
COOLING VANES Dust and mud in the cooling vanes
can overheat the set.
Unit radio repairmen gotta keep the module board .,--
pins safety-wired. Otherwise, the pins work loose, short ( 4
out the set, fall in the gear train, etc. .
It's an old, old story, but if you wanna get the word on
The Bird, or direct artillery fire, or get outta wherever
you gotta get outta, connect and disconnect your antenna
cable with care. Be sure the guide key is in the keyway SAFElY WIRE
before you twist it in place. Otherwise, you break the THE PINS
amphenol connector ... and you may not know it until
it's time to spread the word. And then you won't know it.
Easy with that RT-52- or RT-2-()
front-panel connector to the AS I ''29 or
AT-912 antenna. No hard rm isrn'
when you install orre moc c hc antenna.
Position the CX--"22/LU cable as-
sembly as far back on the R-T panel
connector as possible, then turn gentle
to line up the CX--i"22 grooies ~ ith
the marker on the Iront-panel connec-
tor. That way, you'll not pull the tops
off the connector pins.
MALE CABLE END
TIGHTEN WITH CAUTION
Y'don't have to tighten those 10-volt
F-1 and 4-1/2-volt F-2 fuseholder caps
as hard as all that, man. Save a little
muscle and cut down sleeve breakage
on the fuseholders of the TD-352/U
. ALL YOU GOTTA DO
is SNUG THE CAP
UP AGAINST THE
GASKET TO MAKE
CONTACT AND KEEP
OUT MOISTURE! A
ARC-54 HOT SPOTS
Beat the heat and watch the beat with (especially in Hueys) ... which means
your AN/ARC-54 radio set yet. you gotta seal 'em while they're still
Too much heat and too much beat adjusted.
(from vibration) can put your set down,
but then again too little heat won't help
it at all.
ANARC- 54 If you can't get standard sealer (like
Sglyptal or loctite) a dab of that snow-
white typewriter correction fluid or
candle wax can do the job.
Some reminders: When you wash the
Frinstance, when you turn on the set, aircraft, remove the radios if pos-
let it warm up for at least 3 minutes sible. Water blows power supplies. If
before you transmit. If you throw the you can't take 'em out, be careful with
the juice like cover 'em up.
power to it with no warm-up, you can r
zap the PA tube and the modules. CAREFUL .
On the other foot, don't over-trans- WITH
mit, or you can get the set too hot. Cut THAT 4
the keying to a minimum, and hold the L1
long talk for ground conversation. Too Be sure the power source is discon-
much heat can throw the set out of ad- nected before you remove or install the
justment. set. Saves all kinds of damages ... to
As for beat, tuning slugs in the RF mounts, connectors, components and so
amplifier shake loose from vibration forth.
RF AMPLIFIER ] \hen replacing screws, especially in
,I c2, t. Gso ctoa components like the RF amplifier, be
05 I P 2 V 0 I| sure the 're the right size. If they're too
S L L 0 long the) can damage parts, short out
60 tuning plates and cause 67 kinds of
SEAL TUNING SLUGS a headaches.
S AHH... JUST
AS I SUSPECTED..
CALL BASE !
The big deal about the AN/ARC-. set in your hedgehopping bird. They'
51X and 51BX command radio sets is have maintenance kit, electronic equip-
that they are pressurized to provide the ment MK-731, with a pump to do the
high-voltage circuits with an atmos- job.
phere to prevent arc-over at high alti- From then on, eye the set for the 3-5
tudes. PSI called for in para 3-5 of TM 11-
Side benefits of a pressurized R-T are 5820-518-20 (May 68) every preven-
- low moisture, no dust, and lower op- tive maintenance intermediate.
rating temperatures. The modules are When the center head on the pressure
cooler and will last longer, indicator sticks out you've got the right
Ask your DS unit to pressurize the pressure.
STOPS ANTENNA SLICING
To keep the ARC-54 antenna on your
B model UH-1 from ending up like a
piece of bologna, schedule Ch 1 (31 Oct
69) to MWO 55-1500-200-20/6 for
your bird. It puts a wedge spacer be-
tween the antenna base and tail fin to
tilt the antenna away from the blade.
- Other Huey models already have the
Bare connector pins on course and at
titude indicators, gyroscopes and the
like deserve a happy hat so they can stay
straight till a cable connector goes back
To keep pins on your avionics item
from being bent you can get the follow
ing protective caps for the equipment
5 511I I 48l
S You can find protective covers of
t varying sizes in Table No. 5670, on
pages 838, 839 and 840 of DoD Catalog
C5935-IL-A Vol 3 (1 Mar 70). The di-
ameter given is inside diameter, which
should be just a hair tighter than the
diameter of the connector in order to
insure a snug fit.
Put 'em on whenever the pins are ex-
posed and especially when you're
shipping 'em off to support for repair.
Vk lee.wg and punish.
'.i: )u take the' a;,,O nuof
r" .,.N-| | ^'.-''
NEUTRAL POSITION, PLEASE!
Just after you Cayuse (OH-6A) throttle jockeys touch terra firma move the
cyclic to neutral and leave it there. Otherwise, under windy conditions, the main
rotor blades can make bologna out of the tail boom. 'Course the droop stop ring
prevents downward blade travel only after centrifugal force is lost during engine
stopping and starting.
MORE SUDS AND SOLVENT...
$ AIR MOBILITY LMAINTE
END TO THE DUST
AND DIRT. BUT -
HERE'RE A FEW TIPS
TO MAKE YOUR TELL IT
CLEAN-UP EASIER, LIKE IT 15,
S'Round and 'round she goes and
where she stops, eCLr\bodt knows-
right in the iirals of 'our Hue(Cobra
(AH-IG) ... or any other chopper for
There's no getting awHa from the
clouds of dust in the Dry Season. The
rotor blades whip it into every nook and
cranny. It settles on oily cables, clings
to exposed actuator rods and settles in
S electrical components.
Left to do its dirty work, this grit and
grime will eat away at cables, seals and
set the stage for corrosion--unless you
keep your bird clean.
Whether you take your baby to the
drycleaners or the laundry depends on
what cleaning facilities you've got go-
ing for you.
No warer hand). You'%e guir our Opcning up all the access panels and
,,rk cut our for 'ou. So. use drclean- cleaning the birds innards is most im-
ing solvent. P.D-680. T pe I. FSN p-orant. Getting rid of dirt. oil and
0850.281-1985i all gct ou a I-gal can. grease %ill gi\e 'ou clean components
Be sure \ou never use the solvent and lines... real important n hen you'ree
around ox-gen because the mro can mix train ing to track don n oil, fuel or h -
to form a highly explosive vapor. draulic leaks.
Clean with a cloth or sponge wet
0. with solvent.
OPEN UP ENGINE AND
OTHER ACCESS PANELS
USE A CLOTH AND SOLVENT s
Let the solvent set a minute or so to
give it a chance to work. Then agitate
the area with a cloth or sponge to loosen
and remove the grime.
Wipe the area thoroughly dry with a
dean wiping cloth.
Keep the dry cleaning solvent off
transparent plastics because it'll damage
To guard against skin corrosion, es-
pecially in salt water areas, wind up the
dry cleaning process by using solvent to
spot-clean the exterior of your bird.
LAUNDRY ,YNING ,P..
S When you have water handy, go with a soap-suds cleaning because it's the
preferred method. Soap-and- after means you don't have flammable hazards,
Mix one part concentrate to 3-15 parts water, depending on how strong you
Spray, mop, sponge or brush the mixture on the exterior of your bird. Keep it
off the canopy because it may damage the plastic if left on for any length of time.
IT SHOULD BS3 PARTS
WATER TO I PART
i CLEANING COMPOUND.
While you're at it, have a look-see at the fuel quantity decal. Birds with serial
numbers before G7-15786 had a bogus decal reading "247 gallons." The decal
should read "270 gallons." If not, make a note in the log book to get it changed,
Never pressure spray your bird. You
want a continuous flow of compound or NEVER SPRAY HERE -
water rinse at no more than about 5 PSI. CORRODES IRCUIT BOARD.
A pressure spray directed at the ac-
cess door for the impedance matching
network, for example, can really foul
up the works.
Moisture forced inside the cover will
corrode the contact points. Some of the
radios will be knocked out, for real.
The contacts are coated so you don't clean 'em; if you do, you'll remove the
protective coating. The only maintenance action is to change a corroded plastic
For the best cleaning results do one section at a time. Leave the compound on the
skin a few minutes because dirt tends to harden on exterior surfaces. Rub dirty
areas with a brush to loosen grime.
APPLY LET SIT... AGITATE
Don't forget the weapons subsystem pods-they also get the oceann treat-
Rinse off the compound before it has a chance to dry.
So much for exterior cleaning to protect the paint and head off corrosion. Your
baby looks mighty sharp.
Beauty is skin deep. The real savings
of maintenance down-time and elbow
grease comes by keeping the innards of
your bird clean.
Clean parts wear longer. Take the
tail rotor control cables, chain and
sprocket. The rotors drive dirt under
the driveshaft covers. Any grease on
these parts will hold the dust. The grit
formed can eat on those cables and cause
So, keep those tail rotor controls
bone-dry. Latch onto some methyl-
ethyl-ketone, TT-M261. FSN 6810-281-
2785 will get you a 1-gal can.
Careful, now! That stuff is strong
and will take the hair off your chest, not
to mention the paint off your bird. It'll
even melt plastic.
Use gloves and put the solvent on
with a rag, making sure you use it only
on the cables and chain. It does a terrific
job on bare metal.
WATCH YOUR STEP
When 'ou mount a net bird to open up access
covers be careful of slippery surfaces ... slips hurt! !
Step onlh iherc rou'rc supposedd to step. NEVER
plant sour brogans on the weapons subs storms orl
you'll knock 'em out of kilter.
STEP HERE IJnl T 14r 1: I
You know what that means? A lot of cain raised when the pilot sprays roc-
kets everywhere but on target .. another boresighting chore.
Walk on the forward part of the wing which has the walkway compound on
it, not the trailing edge.
NEVER SPRAY SEALS, SERVOS
Be mighty careful where you direct any cleaning compound spray and when
rinsing the compound off. Otherwise, you could force compound and water past
seals and into un-potted electrical connections to foul up the works.
It's true! Some early birds still have some un-potted cannon plugs. It's a good
idea to go over your charge at the first opportunity to see that the plugs are potted.
FSN 6850-880-7616 will get you an 8-oz tube of insulating compound, MIL-S-
8660, electrical, paste form. Crewchiefs or radio repairmen can pack it in the
plugs like putty-to keep moisture out.
'Course, you also want to keep any
Never use a direct spray on hydraulic
serves and transducers, either. Other-
wise, water will be forced past the seals
and contaminate the hydraulic fluid.
Wipe 'em off with a clean rag moistened
with hydraulic fluid. N0 WATER
'Course, you also want to keep any HERE!
direct spray off avionics equipment so
you don't short out the radios.
ACCESS DOORS SECURE?
When you go from one access door to You could be spending some spare time
another make sure the door stops are polishing out scratches, instead of pol-
not broken or missing. They prevent fishing off a couple of cool brews!!
bird parts from getting beat up.
Take the transmission door, for ex- STOPS
ample. If the door stop is missing the IN PLACE!
door will chafe the transparent plastic.
USE DRYCLEANING SOLVENT
In areas where you can't spray, such as the electrical compartment, use a clean
rag moistened with drycleaning solvent.
Use dry air and wipe with a clean WIPE WIRING...
cloth where you have electrical wires or
where a compound spray might pene-
trate seals. Use drycleaning solvent on
the engine to get rid of oil, grease and
It's OK to spray compound on the en-
gine deck and other areas relatively free
of electrical connections.
NOT TOO MUCH
Make sure the water drains. If neces-
sary, use a rag to dry up trapped water.
Then you can button up your baby.
Before you wind up the cleaning
chore and head for your hooch give the
cockpit a good going over.
Odds are you don't have a vacuum
cleaner, so latch on to a sash brush. A
paint brush will also do the job. Sweep
the dirt up and out.
Dirty transparent plastic can drive a
pilot to distraction, so, make with a
suitable polish. Plastic polish, FSN
7930-634-5340, does a first-rate job on
taking dirt,oil and grease off the canopy.
Yessir-e-e-e, a cleaning is just about
the best preventive maintenance you KEEP 'EM
can pull on your bird. Schedule one, (LEAN
STEAM CLEANING? CAREFUL, NOW!
When a bird needs a paint job and your unit has a steam cleaner, never direct
the pressure spray toward viral parts. The compound will be trapped behind
seals and corrode components-you'll do more harm than good!
Spray the compound at 180 PSI maximum pressure, keeping it off propeller
blades, hub seals, generators, starters, switches, relays, control actuators, bear-
ings, rubber door seals, tires just about everything but the bird's skin.
Rinse the compound off cleaned areas with plenty of water to bead-off skin
Cleaning compound, MIL-C-22542, will give good results. FSN 6850-753-4998
will get you a 55-gal drum; FSN 6850-753-5000, a 5-gal drum. Mix 1 to 1-1/2
gallons of the fuid with 60 gallons of water. Heat the mixture to 165-degrees F.
TM 55-405-3 (Jul 66) Chap 2, has the poop on steam cleaning. Maintain the
cleaner according to the manufacturer's pub, backed up by TM 55-405-8 (Sep
66) Chap 5, Sect V.
I.l is a seled d RI of redi poub
of Inerrud to oarga.laoaal main**
n po.mnao l. R. So is compiled
.m recent AG DOrflb.rhlo Ceopf
lli ti. For anophle dalls o DA,
PaFr 310-4 (n 69), aad Ch 2 (Oc 69),
TAM, Tir, .1c DA Por 3106 (Jul 69),
and Ch 2 (Jan 70), SC's and SM's; DA
Pon 310-7 (Sep 69), MWOi' and DA
Pam 310.9 (May 69), COMSC Pub.
TM 3-1040-224-12. CC De Slowarl-
Warer Mdl 2260101-4 AN.M4/B
32h CFM FRr. Thro-rf P. Dnn
TM 3-6665-26-12. Noa. XMJ Aefl
oild Cbn.lald Panronnl IDewtor
TM 3-6665-271-10, De. M7 Alpha
Uranium Oxide Radloctive Test
Sample Oper Manual.
TM 5-2330-201-70P. Sop, Roll Trock
IM 5-3180-201-15. C4, Jan, Earth
Mow fq.ip loaders
TM 5-310S-101-20P C7 Ian Earh
.oa Eq..p loaders
TM 5-2805-207-11, CI. Dec. Eath
Moving Equip Loaden.
TM 5-3B01-111-20P. Oct Earlhmaovng
TM -3805-329-20P, Cl. Jan. Earth
Mo Equip Loaders
TM 5-2810-201-12, C1, ian 40 Ton
TM 5-3110-206-12. C1. Jan. 40 Ton
Craler Craon Shovels.
IM 5-3110-221.12. CI, Oc. lough
TM 5-3110-287-15, C2, Jan, 12%
Ton Crawlhr Crane-Shvals.
FM 5-38211-21-15 C, oCn, Water
TM S-3915-27-15 Cl, Oc.
TM S-4110-210-14, C.l Dae. 5000
BTU Mech Panel Type Reflig Unit
TM S-4170-211-0?P. Nor 36 000 BTU
Slid Mid All Cordllaonfrl.
TM 5-4120-332-25P. Sp 23 000 BIU
TM 5-4170-21S-25P. Sp 15.000 BTU
Cospa r Aif Condlonarn
TM S-4230-200-25P. Nov, Showr &
TM 5-4310-229-20P. Oc. 250 CFM
TM S-4520-208-25P, C2, Dec
400.000 BTU Space HeIters
TM S.5420-205-25P. CI. Jan, mrbleI
Fry Alll Bridge (MOFABI.
TM ,-6115-313-20P, Odc, 45KW
60 Cyc Eng Drvn Oen Sos.
TM 5-6115-323-15, C4, Dec, 1.5KW
60 Cyc Eng Drnn Gen Slts.
TM 5-6115-428-15, C1, Jan, 100 KW
60 Cy, Gen Sets.
TM 5-6115-328-20P, C1, Nov,
100 KW 60 Cyc GOn Sets.
TM 5-6115-440-20P, Oct, 7.5 KW
DC Eng Drvn Gen Sets.
TM 5-6350-249-12, Dec, AN/GSQ-
151 Rstricted Area Anti-lntruion
TM 9-1005-212-25, CI, Jan.
M1919A4 M1919A6 and M37.30 Col
Machine Guns and M2 Tripod Mount.
TM 9-1005-223-20, C5, Dec, M14
M14A1 7.62-MM RiftO & M2 Rifle
TM 9-1430-35-20P, Oct, Pershing.
TM 9-1430-510-25P, Aug, Hawk
Radar Slt AN/MPG-37 (XO-2)
(Ronge Only, Troiler Mid).
TM 9-1440-381-20P, Nov, Pershing.
TM 9-2320-224-10, C7, Oct, M114
M114A1 M114AIEI Carriers.
TM 9-2350-230-25P/2, Cl, Jan,
M551 Aslt Veh.
TM 9-2350-300-20P, C2, Sep, XM163
TM 9-4940-221-20P, Nov. Paint Spray
TM 9-6625-1856-14/1, C2, Dec,
TM 9-6920-465-12, Sep, Shillelagh.
TM 10-500-12, Nor, Rigging Typical
TM 10-500-18, Nov. Rigging t-Ton
TM 10-500-32, Nov, Rigging 1h /-Ton
2 Wheel Trailn.e
TM 11-5620-549-12-1, Oct,
AN/PRR-9 (XE-9) Receiving Set.
TM 11-5820-783-15, Dec, R-901/GR
TM I 1-5820-784-15, Dec, R-902/GR
TM I15-25-623-20P, Dec,
TM 11-6660-204-10, Oct, AN/TMQ-5
AN/TMQ.SA AN/TMO-S5 and
AN/TMQ.5C Radiosonde Recorders.
TM 11-6720-246-12, Sp., KA-64A
Still Pit Camnra.
TM 11-6720-247-12, Dec, KS-98A and
KS-98B Still Pic Camrra Sell,
TM 11-6780-225-12, Sep. ES-82A
Transportable Photographic Darkroom.
TM 55-1100-218-12-4, Dec, CH.34.
TM 55-1520-209-20PMP, Oct, CH-47.
TM 55-1940-220-15, No., 31 Fool
DED IImr Parol Boat.
TM 55-1940-220-20P. Nov. 31 I
DED giver Palol Boal.
TM 55-2300-257-17-1, Now,
TM 55-.2330209-10-10, Nor. M35
M25AI M35A2 616 129 Tan Cargo
TM 55-2350-12-1. Nov, MS51 Assalor
Veaicle Transportabillly Guldanc.
TM 750-215. Aug. Elarograde for
TM 750-216, Aug. Retrogrado for
Foo Cooking Boking and Serving
MODIFICATION WORK ORDERS
9-1290-321-30/1. Dec. M102
9-2350-224-20/3, De M48A3 Tank.
11-5895-293-30/6, C1. Deo.
AN. TSO 3B
55-1500-210-30/19. Jan. CH 47.
55-1500-210-30/35. Jan. CH-47.
55-1510-203-40/2. C2, Dec. U-6.
55-1520-204-40/5. Dec. OH.13
55-1520.206.30/9, Dec. ON.3.
55-1520-209-40/9, C4, Der, CH 47
SS-1520-210-30/11. C2, Jar. UH.ID
51-1520-210-30/27. Dr. UH-ID.
55-1520-211-40/4, Dec, UH-11.
55-1520.217-30/34, Jan, CH-54,
5-1520-221-20/5, Dec, AH-TG.
55-1520-227-30/19, Jan, CH-47.
55-1520-228-30/2, Jan, OH-58.
AR 71-6, Nov, Ary Motrial Type
Al 750-8, C3, DOf, CMMI.
DA Cir 310-5, Dec, Military Pubs.
DA Frmn 3078, Jun, Personal
FM 11-23. Nov. lAW USASTRATCOM
FT 155-.04, WC Aug, Wind Card..
M44,M44A1 SP Howr M114AI and
M123A1 A. Propli How.
1O 5-4310.200-12-1 and -2, Nov,
600 CPM Air Compressor.
SO 38-100, Oct, Preservation Packing
and Marking Material.
SC 5160-90-Cl-*R0I, Oct, Lnemans
...OUR OK. THAT MEANS
MISSION WE GOTTA
IS TO HOLD KEEP COMBAT
THIS REAL READY AT
ESTATE UNTIL ALL TIMES...
RELIEVED WHAT'S THE V AMRED-
CONDITION OF .PINIOSAWLR
OUR EQUIPMENT.' MON
/AHH, ...IT'S ALSOTHE\ HMM
LET THE OPERATOR'S RANT! \
HEAD sHED WORRY... LIKE, IF
WORRY... UNLESS/E WE DON'T
WE'RE ONLY CAN LOOK KNOW
OPERATORS/ AHEAD- WHEN
HOW'LL WE THE ENEMY
KNOW WHAT WILL HITUS
WE NEED-OR THEN WE BEST
WHAT KINDA HAVE SOME
MAINTENANCE SYSTEM SO
PROBLEMS WE NE'LL KNOW IF
S OT y OUR EQUIPMENT
Is o0 oR NO/
HEY, SARGE, I
GOT A SYSTEM..
I THIS 19 A CHECK THAT ENGINE
THE OPERATOR MAKES TRANSMISSIC
WITH THE TOOLS THAT COME AND TRANSF
ON THE EQUIPMENT-AND HE
RECIPES IF IT'S 6O OR NO 60.
kEEP IT IN A LOG
THE WITH OTHER FORMS
WE MAKE A IT'S ALWAYS
MASTER LIST HANDY AND WE
OF ALL ITEMS, CAN KEEP TABS
CALLED AN ON IT. LET'S
ESC-TM KEEP THE LO
-- .--... "r' PIECE.
RAHT... NOW EVERY 90
DAS WE'LL PULL AN "
INSPECTION TO SEE
WHAT'S SERVICEABLE! ,
*EQUIPMENT SERVICEABILITY (RITERIA
NOW, WE'RE GONNA
NEED A SIMPLE COPE TO
READ THE STATUS QUICKLY...
LIKE GREEN IF IT'S GO..
ABOUT RED FOR
FOR MAJOR REASONS
IF IT JUST NEEDS
A MINOR REPAIR
TO MAKE IT GREEN,.
.. BECAUSE IT'S THE '
OL' TRAFFIC LIGHT BITI
THEN WHEN WE INSPECT
THE MAJOR PARTS-
WE LIST THE TROUBLES
ON A FORM. is.,i
Your cha ces to winL
i A fight,
dolpand oMt your gear
Just one gadget dead
puts it in the RED
Stay GREEN aKn keep out
of tlis plight' /
-. ..p..if[C I.... '.i"" '
B lIn TrarVr Ca. APO 99g | "ru' .1r,: M4Al_
22 Jan 69
IF YOU WANT TO DISPLAY THIS CENTERPIECE ON YOUR BULLETIN BOARD, OPEN STAPLES, LIFT IT OUT AND PIN IT UP.
S, i l a Ii',,on. n, o
dHi l e.rr ilhn| s og r l.,i ...=*..*
SOMETIMES EQUIPMENT HAS A SUBSYSTEM!! NATURALLY, THE
THAT GETS ITS OWN INSPECTION.!/,., THE EQUIPMENTS
ESC-TM FOR THE SUBSYSTEM IS RIGHT RATING CAN'T
THERE IN THE LOGI BE HIGHER THAN
ITS LOWEST RATED
AND A FORM REMEMBER
ALSO, WE'LL NEED A FOR MODIFICATIONS IF THE
FORM TO LIST CURRENr MODIFICATION
STATUS OR CHANGES ET
OF SC-RATED 15JRGENT,
COMPONENTS. R2408-5 EQUIPENT
HOW ABOUT A ?AHT! SOME
FORMTO RECORD OF THE FAULTS .
THE RESULTS OF THAT TURN UP .
REGULAR DAILY, COULD BE ON
WEEKLY ANP ESC 2408-1
MONTHLY INSPECTION COMPONENTS. -
RESULTS. .- -
4' -- t
SOME KINDS OF COMPONENTS
GOTTA BE REPLACED BUSTED OR LOOK AT
NOT) AFTER A CERTAIN AMOUNT OF T IS, Ils
TIME OR USE... IF YOU DON'T DO IT G STEERING
WHEN YOU'RE SUPPOSED TO... GEAR'SiOT
YOUR EQUIPMENT IS RED!
,'. "' "
S WE'RE GONNA NEED A SPECIAL
FORM ro RECORD FAULTS THAT
HAVE TO CARRY OVER UNCORRECTED
FROM ONE INSPECTION TO ANOTHER.
THEM THAT ARE ESC ITEMS
MAY CHANGE THE ESC RATING.
FOR FLYING EQUIPMENT- YOU
SHOULD HAVE SPECIAL FORMS...
AIRCRAFT HAVE SPECIAL PROBLEMSi
',. ..:. i'THA-!
MAN, THAT'S YEAH!' WHY, MAN, THINK OF
A TERRIFIC IF THEY MAKE THE LIVES SAVED
IDEA, URK! THAT SYSTEM .. EQUIPMENT IT'LL
... WHY DON'T ARMY- WIPE, EFFICIENCY oNER
YOU DROP THAT COMBAT READINESS SUPPLY "
INTO THE WOULD IMPROVE ECONOMY- ETC.
SUGGESTIONt 1000 PERCENTr
'CAUSE IT MEANS THE DO YOU THINK
WHY? OPERATOR HASTA KEEP THEY'RE READY
THE FORMS UP-TO-PATE... FOR IT?
O TTA BE ACCURATE AND MP
ii ~YOUR NEW 5-TON JACKSTANDS...
NO-NO's AND DO-DO's
,, i ~ .I GET THE
WE GOT A
Nosy around and you can easily spot a "no-no" in the use of the new 5-ton
trestles (FSN 4910-262-0392), now part of the No. 1 and No. 2 Common Tool
Sticking out like a sore thumb would be any of these goofs:
1. Overloading the 5-ton co- 2. Setting trestle on breaks in 3. Extending it up to the last
pacity. the floor. notch.
4. Placing it under the weaker body sections, like the gas tanks, the run-
ning boards, and the bumpers.
Of course, the "do-do's" come with
the new item too--plenty of 'em.
A solid, secure and square fit is a
Put 'em up against the axle housings,
the spring shackles and the frame rails.
When you're on unstable field
ground, support each one with a flat PROP WITH
rock or a strong board. BOARD WHEN
But, even if everything is sitting ON SOFT
pretty, you definitely don't sneak a GROUND
snooze under the shade of the ol' truck.
BEHOLD THE LOWLY SPARK PLUG'
OUT OF SIGHT OUT OF MIND
IT GETS THE SHORT END OF
`7 THE PM STICK.... '
LEFT IN -
IT'S A ROUGH LIFE
It's usually. not acar or hear thar fouls plugs
our. Just too much carbon. It's the nax the 're
used that does it. Plugs in OD.-cpe vehicles
have it rough. They run on-post or in the
boonies a lot. Either way, it's low-speed run-
ning. And they idle a lot. Engines .carbon up
fast, running slow or idling. But the script
don't have to read like that.
You mechanics can grant them a new lease
on life. All they need is a cleaning job ... just
like your uniform. Laundry is the word .
You ve gol first class tools
Be sure they re all there
You need 110/115 volt A(
air and a work bench
If your plugs ore oily. get off
the oil and guck
Use approved solvent No
carbon tel or gasoline
It s n open air ob -no
fresh or smoking
rhen gel going on the sand.
Use 120 to 180 PSI.
No fori hee medical xaom
Use the metal
adapter to fit your
plug. Screw up fin-
ger tight, no more.
Set the gap gage
You can check the
cleaned plug against .
a new one of the
some type and jwlmn l -
Set the gap to match the cleaned one and
then put it in the other test bracket hole,
adopter and all.
Fact, your old plugs might all show better spark. f
So then you know why not to pitch out plugs too soon.
And you know waste makes plugs hard to get...
Fact, some guys might need 'em bad, but not get any-- -
Which is a favor to nobody but Charlie.
If you can't get regular abrasive, don't give up.
Silica sand or garnet sand or "red" granite sand will do.
Sift and screen it until you get the clay out.
And don't use such a charge for more'n a couple dozen plugs. > "
Then put in the regular compound when you can get it. .---
Fresh, straight-bristled wire brushes help a lot- -
Naturally, the smart thing is to make plug cleaning a habit-
Then you'll already have good wire brushes in stock, and -
Then you'll have fresh abrasive in your PLL.
Never mix up one set of You wouldn't want the plugs Be careful not to drop plugs.
plugs with another. from an M151 in on M715, for That's an easy way to crack
It's especially bad to mix instance. insulators. Porcelain won't
even some-size plugs between I bounce.
2 kinds of engines. That's Crocks could come inside, out
wrong, of sight. You might not even
because catch it on test.
than just the
screw into. Then the plug could fail when
screw io the going got rough, like in a
A HEALTHY MEDICINE BAG
Some maintenance on your spark plug
cleaner can be a real life-saver.
You'll probably have to do it yourself.
It's like coffee -most people want to
drink, but nobody wants to wash the pot.
So don't mind being pot-minded -
equipment running right will save your
neck along with some others....
Bug your supply derk to
keep on extra rubber adapter
for your common size plugs ..
and don I forget your other
items. Common generators,
water purifiers, foggers, pumps,
and beaucoup other stuff use
Have a spore metal adapted
for each of your common sizes
in the spare box, too.
RUBBER ADAPTERS FOR BLASTING
tiA UMMIUK u bN
A flat-face igniton-poin file
helps dress plug electrodes--
but no major surgery, pliz.
FIGURE BY THESE
Some numbers that could be handy are:
de~btng Compound, Spark Plug 4910-787-4330
Gage, Gop Setting 4910-7874328
-. solvent, dry denying 1 gal 6850-281-1985
i rush, wie,14-hI long 7920-291-5815
1* ..0 lto10' hinIg 7920-282-9246
You'll do about as well with Gage,
Gap Setting, FSN 5210-273-1935, in
your Automotive Mechanic's Tool Kit.
For fine-wire aircraft-type cleaning
sets, TM 9-4910-422-12 (Jun 64) or
TM 9-4910-454-10 (Jul 65) pinch-hit
pretty good, but don't apply those
standards to vehicular plugs. TM 9-
8638 (Dec 56) is fine for general plug
TM 9-4910-389-20P (Jun 62) goes
great around unit shops. That's for the
Champion basic cleaning kit.
So get with it, and quit complaining
about a cold-engine miss.. ,
I've been in the dark a long time on loose and cracking exhaust systems of the 5-ton
trucks. Got a light?
SP5 S. T.
Dear Specialist S. T.,
On the gasoline trucks (the horizon-
tal pipe system), you look for excessive
vibration first. Check the timing and the
ignition. Check for loose engine mounts.
Then, make sure your pipe mounting
brackets are flexible. They'll crack if
too rigid. And whenever a nut works
loose or it's removed, replace it with a
new one. Old ones just won't hold.
If problems still poke you, requisi-
tion special self-locking nuts. For the
7/16-in studs, you use FSN 5310-057-
7080 and for the 3/8-in screws, it's FSN
The multifuel vertical exhausts with
the 465-1 engine can be secured at the
turbocharger by using 3 lockplates,
FSN 5340-909-2503, on the adapter
capscrews. Torque the capscrews 23 to
27 lbs-ft. Then, bend tabs over heads of
I TURBOARGER \ \ I
You can stop flange cracks on the
vertical pipe with these replacement
parts: Spring, FSN 2990-121-6184;
Bracket, FSN 2990-121-0686; Screw,
FSN 5305-716-8175; Nut, FSN 5310-
952-1872 and 3 washers, FSN 5310-
809-3079. This hardware will give it
DRAG LINKS BUGGED?
You can't keep the bugs away from the 5-ton truck steering linkage with a
magic spray. You need down-to-earth PM.
You've got lots of small parts in the drag links, the relay lever and the bracket.
If any one goes kaput, you could be in a pinch, but fast.
Your truck can wander and weave. The linkage can wear, loosen even snap.
You'd sure be looking for answers then.
Is it a frozen bushing? A busted seal?
Maybe a cracked ball seat? Or spring action quit?
Hold one-and think.
You can head off breakdown if you cop the troubles before they begin.
Here's how it's done with the drag links:
With this plan and TM 9-2320-211-20 (Mar 63), you'll never get the wrong
_NOT FOR MULTIFUEL-_
If your 2-1/2-ton truck has a multifuel engine, don't bother looking' for the
"stop collar" mentioned in para 210, TM 9-2320-209-20 w/Ch 1, 2 & 3 (Aug
68). Only the gasoline-engine job has a stop collar on the front-winch drive-shaft.
Think the Rough Riders went outi ih Colonel Tedd) R. You can get a
rough ride yourself by overlooking your 2-1/2-Ton or 5-Ton Truck spring
seat bearing lube points.
The 5-Ton takes "S" Service or 3,000-
mile lubing; the deuce-and-a-halfs have
to be lubed every 1,000 miles, the LO's
But some 5-Tonners get issued with
plugs where grease fittings go--the de-
processing crew overlooks the trunnion
axle...somebody sees the plugs and
thinks that means it's a sealed unit DON'T OVERLOOK
(there's 2, one on each side!). THE TRUNNION _
So trunnion axles get chewed up, AXLE LUBE FITTING
CMMI's give gigs, or deadlines sock it
to you. Cure: Be sure the grease fittings get put in and get used...
HERE'S with bearing caps loosened for the old grease to get out like
CURE! he LO's say. And every "S" Service have your favorite me-
4'.. R. chanii check bearing adjustment the -20 TM's give the
S i, f adjustment technique. If your 2-1/2-ton doesn't have a
plug or titting,hand pack it
LONG SHOT, BUT...
If your 5-ton truck is getting on in
years, check out its horn contact brush. CHECK FOR
Three bad marks can show up on that (RACKS
small unit on the steering column under AND RUST
the hood rust, a crack and too long a
Anyone of these could trap you in a
squeeze play. So, give it an eyeball.
You'll find it handy and easy to work
Wipe the dirt off the frame front
Scrossmemberof your 2-1 /2-ton truck- LOOK FOR
especially if it's a multifuel engine job CRACKS IN
-and even more especially) if it was CROSS-
built under Contract No. DAAE06-68- MEMBER
SC-0007 or DAAE06-68-C-0011.
Now look close for cracks in that
crossmember. Real close!
Find any? If so, get that truck up ro
your support-Coot sweet-for a
repair job. They'll weld the crack and
then reinforce the crossmember to beef
it up as per item 22, TB 750-981-4
(Oct 69). REPAIR
If your truck comes under either one
of those contract numbers, it gets the
reinforcement anywa), even if the cross-
member's not cked.
S WHAT AR
A NUT A
G,-OT THE NUTS? WASHED
Hold it! Before you take off in that
2 1/2-ton G742-series truck, take a
peek at the data plate at the right end
of your instrument panel. If yours T ATH
shows Contract No. DAAE-06-68-C- WASHERS??
007, you'd better check those 4 U-bolts
holding' your springs to the front axle.
Some of 'em are mission' a nut 'n' washer.
If you need 'em, get Nut, FSN 5310-
752-1641, and Washer, FSN 5310-013-
Torque for the U-bolt nut is 190-230
FOULED BRAKE FLUID
IT ALL SURE
RUST IN NICE
THE WHEEL DUNE
Rust can ruin you if water gets into
the brake fluid of your M151 1/4-ton
How could water get in there?
Just point to the master cylinder
filler cap, and you'll hit the cause right
on the button.
Before you touch the cap, take a good
look at it-as it sits under the hood.
If the cap's 2 vent holes are straight
up and down, you're building up rust
in your wheel cylinders, master cylinder
and brake lines.
Here's what happens when it rains;
1. Water drips off hood edge onto
2. Cap shoulder forms backwash
near top vent hole.
3. Water flows steadily into
Now, it's time to take action. Plug
the vents with MIL-S-45180, Type 1
Sealing Compound FSN 8030-247-
2525 and drill a new 5/64-in vent hole
down through the center of the cap.
That'll do the trick, like it says in the
EIR Digest, TB 750-981-3 (Jul 68).
But, be sure you don't goof up the
works by tightening the cap too much.
This could've been the problem in the
I II RF
I DRIL NEW ONE I
Keep your dukes off the pivot "nut"
when you put oil in the 1/4-ton truck
The recessed fill plug is what you
Sure, both look alike, and they're on
the same housing. Also, page 2-98 of
TM 9-2320-218-20 (Aug 68) calls the Fil
fill plug the drain. So, you figure you
gotta go higher.... I
No. No. No. That's a printer's goof. Here's the right poop.
If you loosen the pivot you'll screw up the works-but good. The inside arm
assembly drops off its notch and locks the gears.
Remember the difference. The pivot sticks out, and the fill plug is recessed.
If the fill plug is buried, just scratch a bit.
IF IT'S DENTED
A short circuit-no alternator output-no juice
goin' into your batteries-dead batteries--no go.
That's the story if the junction block cover gets
mashed down against the battery lead on your 60-
Keep your feet off the junction block cover and be
careful you don't drop wrenches 'n' such things on
If your cover is dented or bent and you can't
straighten it out, just leave the cover off. A better ..OR LEAVE IT
cover will be coming' out on newer alternators. OFF ALTOGETHER I
M16A1 RIFLEMEN WATCH THAT...
Anm grunt %idh
San NlI6AI 5.56-MM
riflere glued to his 6ngers
know s that roueh inish
I on the aluminum receiver
1 is there for 2 reasons.
First, it cuts down light reflection during patrolling actions. Second, it pro-
tects the metal from exfoliation.
Exfoliation? That's right! It just means bare aluminum starts flaking off once
that protective rough stuff's gone. Because that rough finish is actually a hard coat
anodized on to the receiver.
If you use your rifle bore cleaner (CR) and LSA regularly, this protection
should last for a long, long time. But once it goes, and the shiny aluminum shows
through,you need to turn over your weapon to the unit armorer for quick main-
tenance action on the bare aluminum parts.
ARMORERS CAN REPAIR IT ,,
If you get your rifle to your armorer before exfoliation
starts, all he has to do is paint the shiny areas.
If you don't get there in time, your armorer has the proper
tools to stop exfoliation (or flaking) action.
That means you armorers can smooth off the corroded area 1
with crocus cloth. Then wash off the bare metal with dryclean-
ing solvent. Recoat the bare aluminum with solid film lubri-
cant and let the parts dry for 12 to 16 hours in a well venti-
lated area before you reassemble the weapon. 7 3
CAREFUL WITH THAT LUBRICANT
If any of this lubricant film spatters
inside the receiver parts, wash it off with
drycleaning solvent. The inside toler-
ances for the receiver parts are too tight
to allow any film to build up in there. /
This will definitely interfere with the
These rules apply to the upper re-
ceiver, lower receiver and lower re-
ceiver extension depending on how
much of the weapon's aluminum needs
cleaning and recoating at one time. Be
sure you check all 3 parts anytime you
have to fix one of them. And wire brush-
ing is always no-go on aluminum
The supply side of this maintenance situation requires knowing a few FSN's:
By the way! Don't wet your patch with bore cleaner until you're sure of what
If your cleaner doesn't show MIL-C-372 some place, toss it back.
Could be another breed of cleaning compound which both your fingers and
your weapon wouldn't appreciate contacting... such as this MIL-C-11090 variety.
That's a degreasing solvent which has nothing to do with cleaning bores.
FLE MIlE CLEANER C' LEANING CIMPUNO
IdILC3Al ML-C-372B AMS
lfci- 1 11811aj INC 6011CUF. r:E ll III(
EIME K.I I lr ui i
M85 MACHINE GUN LOADING:
WATCH YOUR OPERATING PM
Rearward to clear ... forward to load thar's the gist of the bolt story when
loading your M85 50-cal machine gun. Never forget it! 1
Yeah, it happened. A guy lifted the cover, pulled the bolt to the rear, loaded his
ammo,put the cover down and started firing.He got off one shot,and that was ir.
What happened was that pulling the bolt to the rear placed the feed actuator
lever on the left side where the feed lever couldn't engage it after he put the
Cover down. One shot ... no more feed... bent ejector tangs... jam ... HELP!
(ANT TANGS I
So, you be smart, huh? Get your TM's procedures down pat and follow the
script every time, like so:
This is for you guys with M108 or
M109 self-propelled artillery.
Your 8V71T Detroit diesel engine
can burn up if you don't know what to
do when the master warning light
So here's what to do when you get
the warning light:
1. Put the shift lever in neutral (N) and set
engine speed to fast idle (1000 to 1200
THERE'S THE WARNING...
2. Check the engine and transmission oil
pressure gages. The engine should read
between 30-50 PSI and the transmission
between 10-13 PSI. If either reading is low,
return engine to idle, stop the engine by
pulling the fuel shut-off control handle
and find out why the pressure is low. Get
help from your unit motor pool if you
3. If the oil pressure is OK, check the tem-
perature gages. Engine coolant tempera-
ture should not read above 230 degrees
and transmission oil temperature not over
300 degrees. If either gage reads higher,
run your engine at a fast idle (1000 to
1200 RPM) until the reading goes down to
170-185 degrees for the engine coolant
temperature and 220 degrees for the
transmission oil temp.
If it takes more than 5 minutes to get the
temperatures down, stop the engine and find
When you have to add water to your radia-
tor you never do it with the engine hot. Let
'er cool down to 170 to 185 degrees at least.
Follow the instructions in your operator's
manual for adding water to the radiator.
After adding coolant, put the radiator cap
back on tight and run the engine at least
5 minutes at 1000 RPM. Check the coolant
level again and add some if necessary.
On late M109's, the cooling system pres-
sure is vented through a pressure relief
valve, FSN 2930-475-1506 (P/N 10922327).
With early model M108 or M109 howitzers
you have to open the petcocks when adding
coolant so you can purge air trapped in the
cooling system .s
The radiator cap, FSN 2930-979-5592 (P/N
10882098), on the M108 and M109 how-
itzers, has no vent. Make sure you have the
correct seal in place, and that the cap is firmly
seated and sealed after you add coolant.
You'll find the correct radiator cap
seal in parts manual TM 9-2350-217-
25P/1 (Jan 69) on page 327. It is either
Item 11 or Item 12 depending on your
vehicle serial number.
PROPER HEADSPACE AND... REGULAR REAMING
WE CALLED FOR SUPPORT DOES IT
FIRE TWO HOURS AGO-- YO
YOU GUYS GOT A HEAD GOT ANY
SPACE PROBLEM ? CLUES ON FIXIN'
A FOULED BREECH
A charge that fails to fire is a possible clue to a fouled breech mechanism on
your 155-MM medium towed howitzers.
But why wait that long to find out something's wrong when regular reaming
and cleaning of the narrow passages in your breech mechanism could have kept
your piece from fouling in the first place.
Some powder residue works its way past the obturating parts and through the
obturator spindle vent each time you fire the weapon -and finds its way into the
small space between the vent and primer seat.
OBTURATOR SPINDLE OBTURATOR
The cure is to use the vent reamers
and cleaning tools carried in your
howitzer's BIIL (Basic Issue Items List).
However, if fouling of this vent hap-
pens too often, you might recheck your
headspace according to page 114, TM
9-1025-200-12 (Mar 65). If headspace
is wrong-the primer seat will be
loose. And too much headspace lets
primer blowback help to foul thebreech
LOCK BEFORE LOADING
Also be sure the M1 firing mechan-
ism is securely locked into the firing
mechanism housing before firing the
howitzer. This means screwing (clock-
wise) the firing mechanism into its
housing until the handle hits the stop
study on the breechblock carrier.
Otherwise, the firing mechanism can
back off during firing-or even blow
out of the breechblock .and maybe
take part of your howitzer crew with it.
IGENEAL & lJFF'Olm
EW HEY YOU
HERE'S A HANDFUL
OF TIPS TO TEND TO
ON 290M, COUSIN... -
MNRE$ A INS 6 ZE
You might not think so to look at that mo'in' mountain of iron, but sour
290M Tractor needs some tender, loin' care the) didn't mention back at good "
old Fort Hardwood.
Fact. here's a dozen or so things sou need to 'tend to that might not have
been spelled out in AIT-
NO REVERSE TOW
Take a little thing like getting out of a lam, frinsrance.
It's natural when you conk out to get a tIo line and let somebody pull you
if sou can't restart fairly soon.
On this mobile statue, that could be dangerous ... if you'rc pulled backward.
that is. Ne'er, in no gear. but not eoer. should you reserse-pull.
If you do re erse-cow a 290M, you quickly and most effecti\els wreck the push-
start pump. That's a fixture on the lower right rear of your transmission, FSN
2520-999--480. 5161 each (there must be a cheaper way to get going! .
fcouT PLEASE! DON T RUSH IT! -
Or let's suppose you're just making a normal start. Your engine coughs a
couple of times and starts running slow and eas).
You're feeling real happ) and you're eager to go our into the lovely woods of
Beautiful Southeast Boondockia ... so do you sort of hurr) the warmup on that
No, you do not ... unless you'e got
some good reason to paant a ner rear
main bearing and ma) bea turbocharger
(do time included, that's over SI
The thing is. it takes a little time to
get either your turbo bearings or your
rear main lubed after your engine GIVE BEARING
begins to run. Lou RPM thru the a hole TIME TO
5-minure narmup -not oer 900 rejs GET LUBE
a minurt is safe.
The same idea goes for shutdown. You idle down for 5 minutes.
It takes that long for your turbo to calm do" n, and it can't get oil unless your
crankcase pump is going.
Sas you're headed o'er to equipment pool for a new
scraper. You'%e dropped your old bucket offl, and ou B LE
ha'e your uniersal coupler lock link on. Do you just THAT
nmerrily bang oer the hill at good speed for your pickup? TREE
Like you guessed, NO. At least not before you tie that
tree in the rear jth some stour cable and tight. That
lock link lust is not enough: a 5900 ball joint is the price
of running painless v ithour a tiedo, n.
B. Don't think your LO is incomplete just because it doesn't mention a grease
fitting for your water pump. That pump is factory lubed, and gets greased again
only by support maintenance or higher. But if drag develops and loosens your
drive belts, do holler for support-it'll save your bearings.
C. Before you move out every morning, check those
stiffening rods. If they're not tight and straight, they can
bend your route just enough to land you in Chips' Creek
- you literally can't steer where you want to. A check on I
your pan cylinder rod (protective-cover it if you can)
won't hurt right at that time either.. and might keep
you from hurting later.
WH YOU D. Keep sneezer valves healthy so you can get rid of
NEED IT condensate water collected in your air brake reservoirs.
Use 'em before every run. A 40" grade- loaded- is no
place for aches in the brakes. They're valve, drain, code
(06853), P/N 277120, and you can use emergency sub-
stitutes if there's no other choice.
E. Make sure your rain cap-your "butterfly" on top of
your exhaust-is healthy and working, even if there's not a
cloud in sight. If that butterfly gets sick, whichever thing
happens is bad- if it sticks shut, the exhaust blows soot back
into your air cleaner and ruins it (which ruins your engine in
a half hour to maybe 3 hours). If it sticks open, rain gets in
your exhaust and most likely blows one turbo, one manifold, DON r BLOW
one set of cylinder innards, and one stack. YOUR SIACK
TRY A CHECKLISTT
With these samples, maybe the idea is a little clearer. So to make out with the
other points, check these:
A. Change air cleaner cores IS F(A CHANGE
as soon as you get a red flag in NlEAN IHE AIR CLEANER (ORES
the restriction indicator, be- TIP
cause this is a Go-No Go sys-
tem. You can help that filter
core live longer by cleaning the
unloading tip if it ever sticks in
F. Do clean your radiator honeycomb of trash and dirt CLEAN IT DAILY
with compressed air or water hose daily. Even if you don't
see dirt, the inside can be clogged. And dirt on the bottom
hurts the worst, because that makes your oil temperature
stay high-that's the part of your radiator your oil
cooler's on. And hot oil can equal engine overheat, burn-
out, disaster... .
PON'T YOUR GOOD-LUCK PIECE
DEPEND Since there aren't many rabbits in h. '
ON GOOD boondocks, your supply of rabbits' fout -
PIESUCK luck pieces is probably kind of short.
But there's another charm th.l',
better ... and don't laugh-it's wh, I
What you do is, you spot-check
torque to 650 ft lbs about once a wCIk
And every day, you eye-level eyebal. all
6 dozen to see if there's any tell-ral
signs of shimmy. Long before, sevcr.l
hours before, you ever have any dan, er
of losing a wheel, you'll see little o. l .
shaped marks around loose nuts where
the big ring casting has been crunching TOROU
up and down.
The reason that'll bring you good luck is, it'll help keep
you from losing a shoe on a grade, possibly snapping an axle,
and rolling over. The future of a 290M herder in a roll-over
is likely to be very brief.
So there're the spicy secrets of speedy success. Have at it.
S RADIOACTIVE SAMPLE
f I^ll l\ 'g.
The MX-1083B/PDR-27, radioactive test sample, is due a leakage test semi-
Sannually, like it says in para 7c, TB 3-6665-201-12 (Dec 66). TM 11-6665-209-
15, which says the test is part of the monthly check, is getting changed to jibe
with the TB's instructions.
Draining the crankcase oil from the engine of the 50 GPM liquid dispensing
tank and pump unit can be a messy business. Sometimes it runs all over the pump-
ing assembly and down into the truck bed.
You can solve that messy problem by the following steps:
3. Now screw a %-in NPT x
2. Next install a %'-in NPT x 7'1/-h nipple, FSN 4730.188-
90" elbow, FSN 4730-253- 1875, hi the elbow.
4427, on nipple.
4. Then put.o %-in NPT x 1/4-
in coupling,, FSN 4730-187-
7611, on the end of the 71/2-in
nple. 5. Now install in the pipe cou
pling the original %-in oil
drain plug that you removed
from the engine oil drain hole.
6. Fabricate a 2-pic(e oil drompipe sup-
port clump from 1/2 in wide x 1/16-in
thick steel strap, making each piece 4 in
long. Now install the fabricated 2-piece
clamp around the oil drainpipe (aid en-
gine base liffing pipe. Then fasten clamp
with a 1/4-in x 1/4-in stove bolt.
DON'T LOSE YOUR COOL
Capillar) lnes on the Redmanson LINE
RGP.9000 reefer unit have been vi-
brating in two and ruining big loads TIE TOGETHER
of freezer fare.
S o rape thar capillar) to the liquid
line that runs up and don a. No need CAPILLARY
binding the 2 lines close just LINE
enough tie to stop the shimmy.
DO YOU KNOW
Your mountain piton snaplink, FSN 8465-360-
0228, may let you down when you're depending of -,x
upon .it. YOUR
Some of those snaplinks may have a loose pin on SNAP UNKI
the end that opens.
To see if you have one with a loose pin, apply
pressure to that pin with a piece of wire (like a paper
clip). If the pin drops out, better get another snaplink
(but give it a check too before you use it Turn Y our
bad links into supply. They'll report them to the
Commander, Defense Personnel Support Center.
ATTN: Director, C and T, Div.of Suppl% Opera-
tions DPSC-TSIE 2800 S.20th Street. Philadelphia,
PA.19101 for replacement items and disposition
"T" ITEM REPAIRS
When the codes in the SMR column of a parts manual read PFT (like on page
18 of TM 5-2805-257-24P), the F-the maintenance part of the codes-means
direct support can repair the item. That's so, even when an item coded T on re-
coverability normally is repaired or overhauled at depot, as explained in P man-
uals for most military standard engines.
D7E TRACK LUBE
Puzzled about what to use in your D7E track adjustment gun? The answer's
simple-plain ol' GAA. That's the word from the headshed.
Nope. You needn't transfer current info from a filled
S DA Form 3318, Record of Demands, card to a new card.
You can just note "Bal Brought Fwd" across columns a
and b of the new card, date the entry, and attach the new
I card to the filled card.
Keep the filled card until its info is no longer current for your quarterly re-
views, and then toss it out.
ROD card info is current for 12 months (4 review periods) after an item first
goes on your PLL. After the first 12 months all you need is demand info for the
current 180 days (2 review periods).
You can continue to use the old title
insert with a new card-just correct its
info as needed. Anytime you have to re-
make a title insert, of course, you must
transfer the date the item first went on
your PLL, to the new insert. ---- ----- --- --
K STOCKAGECODE DOAT O
MS 901o3 0a
AMlolA/I lo-SmA t "owed r- O........
STOCK NUMBER ITEM DESCRIPTION LOCATION
6Z40-SS- 78.4I Lamp, fIcandescen I1
The records cut-off SOP, file number 14-27, para b, page A-22, AR 340-2
(Sep 69), can be used on your record of demands cards.
GENERATOR TM CHANGE
There's a new TM series now for the 400-Hz 10KW Military design gener-
ator gang-it's TM 5-6115-450's, not the -332 series as listed on the data plates.
What do you do when SB 700-20 and
your TOE or CTA, or your property
4 book disagree on an item's LIN?
No sweat. You follow the SB. It has
If 7 I the final say on an item's LIN. You can
Suse the SB's info to up-date your author-
ization document and your property
^ book (in pencil) like it says in AR 711-5
S (Dec 67), para 2-32b.
~xz,- /4 7/ /.//7 -
To cross-check LIN's in older authorization documents with LIN's in SB 700-
20, you use SB 700-22. But, be sure to read para's 1 and 2 in the cross-checking
SB, before you use it. And, hang on to it ... it'll not be reprinted.
If neither SB answers your questions on an item's LIN. .. and, you think the
item's reportable, you can report the problem like it says in AR 711-5, para 2-
Hold it, Mr. Property-Book Man. A DA Cir 750-28 (Apr 69) has the word
CBR mask never goes to the salvage on this and other special supply info on
heap. the masks.
Whether it's done in by FWT, or
otherwise .,,. or, it's excess, a mask
must be turned in to your supply sup-
port outfit. That goes for the M17-series
field protective masks, the M14 and
M25-series CV crewmen's masks, the
M24 pilot and aircraft crewmen's masks
-and, any other CBR mask you may
have on your book.
Normally, supply support turns the
masks in for repair, or as directed by TURN 'EM INTO
special instructions from its back-up
&Ceae Aemmao Neeed
When you lay out your linked ammo
belts to check 'em for damaged links or
cartridges, try to keep 'em off the
ground. Lay the belts on clean boards or
tarp while inspecting them. Otherwise
you might pick up dirt and crud that
could cause stoppages.
Caibrati on T
You'll find the latest listing of Calibra-
tion Requirements for the Maintenance
of Army Materiel in TB 750-236 (Oct
All you CMMI watchers may want to
latch onto a copy of Ch 3 (15 Dec 69) to
AR 750-8. It has new word on scoring of
faults found by CMMI teams under rules
of the AR and DA Pam 750-10.
Please pass the word-When it comes
to testing the thermostat in your equip-
ment's liquid-cooled cooling system, fol-
low the scoop in Fig 78 and page 96,
TM 9-2858. In other words, you're not to
let the stat touch the hot water container.
So, kindly X-out the bucket shown on
page 15, PS 199.
Scratch that 2-oz can of PL-S lube oil
that snuck onto page 25 of PS 205. FSN
9150-185-0629 is no longer in the
7ew oadee Scoof
If your Huey C model has been up-
graded to an M model with a T-53L-13
engine, run your fingers thru the white
pages of TM 55-1520-220-20. Ch 3 (29
Sep 69) has all the poop on the new
VA4 Form 17 Change
You won't get the changes with the
basic pub automatically when you fill
out that DA Form 17. You have to list on
your 17 exactly what you want-or you
won't get it. For example, list "TM 9-
2320-238-20"(when you need only the
basic); "TM 9-2320-238-20 and changes"
(if you want the basic and all changes);
"TM 9-2320-238-20, C3" (when you
need only the last change). If you need
C2 and C3, you list "TM 9-2320-238-20,
C2 and C3". Remember, if you want the
basic publication, be sure to put that
word "and" between the publication
number and the changes you need.
Would You Stake Your Life on
the Condition of Your Equipment.
PART ON YOUR
...EWRe YU Sr OR STOP