PS Magazine - JANUARY 1986
PS, The Preventative Maintenance Monthly
ISSUE 398
JANUARY 1986
r
l
M1 Tanks .
.±
=-
1
Fuel Cover fix
r-=
Dear Half-Mast,
I've found a solution to the prob±
lem of broken
metal clips that
plagues the fuel cover retainers on
M1 tanks. The metal clip is not in
the supply system.
Drill
a
hole
through the
fuel
L:
²³'
cover
retainer
and
locking pin
using a 13²64³in drill bit. Attach a
cotter pin´ NSN 5315-00³013³7258µ
to a piece of smalL chain and fasten
the chain to an S³hookµ NSN 4030³
00³946-849¶· S¸JP the cotter pin
through the retainer and locking
pin and the fuel cover is secure·
Mr. Sam Vu/eta
F
Knoxµ KY
UsE HaRdEned Yoke WashERs
A loose yoke is no joke. If the yokes
Fr the ML 's oil cooler drive gearbox
work their way loose, they Cause lots
of damage to the sha± componeNts.
To stop the yokes ²om working loose
²om the angle dr³ve gearBox, the head-
shed has Come up wi´h washers aNd cap
screws that let you torque the yoke
screws tight.
ReplaCe the washers and cap screws
oN both ´he rightµ aNd le±µside yokes
with improved washers, ¶S· 5310¸00µ
987µ1294¹ and cap screws, ¶S¶ 5305¸
01µ010µ2362.
ºeFre installing the cap screws, coat
their threads with sealing compound,
Angle drive gear box
YOke
¶S¶ 8030µ01»025¸1692¼
Torque the screws to 30µ40 lBµ½. That
will make loose yokes a memory¾
4
JAN 86
m´ taµks ¶·¸
Sta± ²ight-STop ²iGhT!
Some bad things are HappeniNg to
those $353¹000 tu¿biNe eNgiNesÀaND
_
right Now the f³Nger ³s poiNtiNg to yoU
Á
Drivers. INcorrect stÂrÃing aNd sHutDowN
proCedures are causiNg excessive wear
aND tear, alÄNg witH outrigHt ÅiÆure!
Çere are Fur cautioNs to preveNt
eNgiNe Damage dur³Ng startiNg:
$
¶ever press tHe START buttoN loNger
thaN oNe secoNd. ÈoN't push the buttoN
more than oNce, or hold it down uNtiÆ
you get a start or aN abort.
PRess
STA±t bu²²on
one second
$
¶ever use tHe STARTER O¶ÉY
switch beFre or while pressing the
SÊART button.
$
¶ever move any circuit breaker to the
OËË position oNce the start cycle Has
begun.
CircUi²
breaKers
of-limi²s
During
s²ar²
that wiÆl eventuaÆly ruiN the eNgiNe.
±
ÈonÌt PÆay
tr³cKs
or combat start
games wi´H the eNgiNe. The iNF iN TM
9¸2350¸255¸ºÈÍ
ºat´ÆeÎieÆd
Èamage
Assessment aNd RePairÍ is oNÆy Ïr Use
iN aN emergency or iN reaÆ combat wheN
d³recteÐ by your ÑO.
ÒiNally, here's what you Need to do
to prevent damage at shUtdowNÓ
$
Give the engiNe at Æeast two miNUtes
at idle to cooÆ oÔf beFre shutdowN. Éet
it idle while
yoU Check oUt gages,
switcHes aNd warNiNg Æights.
01\ tMf
Hl6h
IDle
BeFore
³hU²DowN
Õll these actions could pu´ too ÖucH
Ê×a´ w³Æl preveNt heat soakØbacÙÍ
Úel into the engine. The extra Úel caN't
which cracks tHe engiNe recuPerator.
be BurNed in a coNtrolled wayÛit ex¸
THe crÜcks wilÆ ruiN tHe rear moduÆeÍ
plodes. And ´hat causes iNteÝal damage
aNd tHat cos´s $Þ39Í000ß
JAN 86
5
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