PS Magazine - TB 43-PS-545
PS, The Preventative Maintenance Monthly
ISSUE 545
APRIL 1998
M93±-Series TRuck² .
.³
ight out of Star Trek? No, It's what you mechanics ±eed to do to the pRotec-
tive co±tRol box on M939²series 5²to± ³RucKs.
Some FIelded boXes have deFectIve staRteR lockouts that aJlow the staRter to re´
engage whilE µhe engine Is Run±I¶g·
¸o pRevent damage
t
the staRter and the e±gIne ¹ywheelº dI»engage the ¼tarter
oveRride u»Ing tHIs ProcedURe:
I´
Disco±nect t½e batterie» (¾emove the nega¿iVe con±ectoRs)À
2µ
Áemove the alµERnatoR termi±al
coveR.
I
¶EmovE·E¸¹ºnalcovE»
.
.
.
±²
¼½
ÂIsco±nect wÃRe
566
a±d be±d it
bacK From µÄe teRmi±alÅ then pUt
electRIcal taÆeÇ NSÈ
5¾70¿À0¿
±
.Á pUÂ ElEc·RÃcAL ÂapE
816Ä6À56,
on ¿hE wIre enÉ.
oN wÅRE ÆÇÇ ÁÈÈ
4É
Áemove tHe tie wrap o± both the
posÊtIve and negatIve cablesÇ Add
the dI»con±ected wiRe
ÊËË
to the
bU±dLE a±d then secure the bundle
wIËÄ a new tie wrapÌ
ÌÍ
Áeplace the aÍteÎatoR µeRmInal
coveR.
ÎÏ
Áe²connect the BattERiEs.
ÏHe pRotecµive conÐRol BoÑ wIll co±Òi±uE to peRfOrm aÓl other ÔunctÕo±s EXcEpt
Ö¿aRter oveRride×
PÐ ÑÒÑ
Ó
ÔPÕ Ö×
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