PS Magazine - MAY 1977

PS, The Preventative Maintenance Monthly

ISSUE 294

MAY 1977

PS Magazine - MAY 1977 - Page 12 of 37
Dear Editor.
Here's a tip on tRoubleshooting a
5-
ton truck-braKe problem that
I
Came By
the hard way, sinCe the solution Is nOt
In the TM troubleshooting tabLes±
The
troubLe
was that
t²e b³aKes
wouLd not release After being appLI´dµ
A
Jot of worK was ¶one fo· nothIng
when
i
insta¸ed
2
rebuIlt air¹hy¶³auLIC
Cylinders and a masteº Cylin¶»¼ aN½
Cleaned a¸ valveS in the System¾
Fina¸y¿
±
dIsCovered the
CauS´:
a
Clogged breath´³ On the ¶UÀÀY
CoupÁng of the frOnt ´rVICe VaLve Was
feedIng
baCK
pressure
to
the
aI³Ã
hydrauÄiC
CyÁnde³Å
so
It
WOuL¶NÆt
³elease CompLeteLyÇ
Duane
£.
ÈaWÉ
²MS³ 38
ÊIËhIÌÍÎ
KS
(Ed Nate: Everbody, Right now± g²Ab A p³´cil A´d mAke A ´ote of this pµoblem-
solutio´ i´ you²
Tm
9¶23·0¸211¹20 ºu´ 73)±pAge 2¶15± A´d
Tm
9¶2320¶·60»20
ºul 72)¼ pAge 2¶17.)
´0
splash
shield-bEtween
the engine
SPLASH SHIELD
/
q'
iNSTALL 5 CLiPS P/N 2233383
and the fender±can catch fIre if it gets
shoved againsT the hoT exHausT Pipe.
Mud accumulating under the shield
does the shoving² ³T can pUll the shield
off tHe retainer clips and let it hit the
exhaust´
So keep an eye on THat shield during
mµddy operations±and never let the
mud bµild µp¶
µ1


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