PS Magazine - DECEMBER 1980
PS, The Preventative Maintenance Monthly
ISSUE 337
DECEMBER 1980
tcq
Ct!
-Letting
your
tRuck
coast
bacKward
while
you've
Got thE
trAnsmission in A fo±aRd GEaR (oR
coasting Fo±aRd WhilE in REvERsE
-
-
±
gear).
'±
.±²,³-
´µ¶·¸¹º» ¼½¾¿
²Trying to tow youR tRuck
>"K-kRON±²'
ForwArd while tHe trAnsmissiOn³s in
²
'\·
:
reverse ´or pulling bAckwARd whenµ:
¶He trAnsmission·s In A Fo±Ard
geAR)¸
et t e message? Make sure your transmission's always in the right gear for
tHe dIrectIon you're movIng-even If you're coasting. ±f you don't, that sprag
clutcH wILL grab a hold of the front drive shaft and lock on² With your rear
wHeeLs figHting the front wheels³ you'lL be ´ucky If you onlY wind up with windµ
uP-you could bust a ProP shaft or axle. THe weaKest point in your drive train
will gIve out. ¶robably your transfer wIlL conk out.
±f you goof-like coasting backward In forwaRd gear·you may be able to
head off wind¸up¹ Just make sure you drive forward for the same distance tHat
you coasted backward² Same goes for coasting backward In a forward gearº
drIve backward the same dIstance. ThIs should let the sprag clutcH release its
grIp on tHe front drIve shaft.
Sprags just ride
between The Races
when there's no
demand for fronT
wheel drive .
..
DozeN± of ±PrAg±
aRE fiTTEd iNTo The
ouTER RACE²
4
ouTER Race
ouTe³ RaCe
sLoW
fA±T
A
GI Ng
.
±P´ g
±
³
E
±
Prag
µnNeR rACE
... buT ThE sprag±
(1 shown) wedge And
lock The RaCes TogETher
when The reAr whEels
s¶in aN· s¶eEd uP The
ouTer race
¸
¹hi± give± drive
to The fronT wheels.
Shift Your transmission Into reve»se¼
T»Y to tUrN the wheel iN both dIrections½
¾t shoU´d ¿Urn backwa»d easÀly bÁt nOt
fOrward at alÂÃ
5
TheÄ shift inÅo fÆrst gear¹
The ÇÈee´ shouÂd ¿urn forward
but Not backÇardÉ
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