PS Magazine - AUGUST 1977
PS, The Preventative Maintenance Monthly
ISSUE 297
AUGUST 1977
'I
Listen up, al± driveRs of M60 and M48A5-series tanks, M728 combat
engineer vehic²es and AVLB's. The A±lison CD 850³6A transmissIon on your
vehicle might be put together with a ´oose set screw inside the guts of the
torque converter that'±± ±et the transmissIon se±f-destructµ That¶s the Bad News·
The Good News Is that you can save your transmissionµ
1.
Right now, geT your frIendly T±ack
63-series
mecHanIc
To
make
The
trAns
m
issioN pressure cHecks lIsted In
your vehicle automotive
-20
²M. ³F
tHese ChecKs
are
noT
normal,
call
support maINtenaNce. Do Not drIve THe
veHIcLe untiL i´'s FIxedµ ³F tHe veHIcle
cHecks out
OK,
drIve It but ALSo do THis:
2±
Pay parTicular Attention To T¶e low
traNsmIssIon oil pressure gage becauSe
low pressure meANs THe TraNsmIssIon Is
About to fa I ³µ
14
.±²
3· During veHIcLe operATion¸ if the Transm¹sSIon oIl pressure needLe stAys in thE
red when your RPM's are abovº idLe or if tHe pressure is ConsIderAB»y Lower thAn it
sHould be for the operatIng con¼ition, something
Is
wrong½
¾Ave Your trAC¿
vehIcLe mecÀaNIc cheCk ouT The pressureÁ ²urn the veHiCle over to suppOrt
maInTeNaNce IÂ It does noT checK out
OK²
@
±
²
YOUr SuPPort W¸ll s¹aKe ¹He set screw (Nº» 5305-00¼059-2490) w½IcH Is
¸¹em ¾1 of f¸¿ 11-5 ¸n TM 9-2520¼223¼34 (Dec 7ÀÁÂ
·
MBB/MBBA 1 Torque Change
³´µ-¶
YoU've Probab±y nO¹iced tHat ¹he
sprOcKet HUb studs, NºÃ 5307¼0À¼
004¼3064,
P
/N 835À875, on the ±eft
oU¹Put reductiOn assemb±y are always
cOming loose.
The
PreseÄt
350 ±b¼f¹ torQue Is
rea±ly not enough. ºo tI¿H¹en ¹He nuts
to 900¼950 lb¼ft using torQue wrench
(0-À200 ±b¼ft caPac¸¹yÅ Nº» 5Æ20¼00¼
À69¼2986 and react¸oÄ bar NºN 5120-
01¼008ÇÈ632 Énot on AMDF yetÊ.
These 2 Items have recent±y been
added
to
t½e
Organizationa±
maintenance
fu±±
tracKeË
too±
set
supplemeÌta± No. 2, NºN 4940-0Í-
754-0743.
THe cHange is authorized by TB 43³
000À¼39¼À (ApR 77).
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