AIRSYSTEM
PreventiveMaintenance
Thefollowingservicechecksare
providedforyourinformationonlyand
shouldbeperformedbyacertied
mechanic.Contactyourdealerorthe
enginemanufacturer'sMaintenance
Manualforfurtherinformationon
servicingaircompressors.
Aftercompletinganyrepairstotheair
system,alwaystestforairleaks,and
checkthebrakesforsafeoperation
beforeputtingthevehicleinservice.
Belowisalistofareastomaintainfor
theaircompressor:
•Inspectcompressorairlter
element,ifsoequipped,and
replaceelementifclogged.Check
compressormountinganddrive
foralignmentandbelttension.
Adjustifnecessary.
•Removecompressordischarge
valvecapnutsandcheckfor
presenceofexcessivecarbon.If
excessivecarbonisfound,clean
orreplacethecompressorcylinder
head.Also,checkcompressor
dischargelineforcarbon,and
cleanorreplacethedischargeline
ifnecessary.
•Disassemblecompressorand
thoroughlycleanandinspect
allparts.Repairorreplace
allwornordamagedparts,or
replacecompressorwithafactory
exchangeunit.
CAUTION
Whendrainingtheenginecooling
systemisrequired,topreventdam-
agefromfreezing,thecompressor
mustalsobedrainedatthecylinder
headandblock.Enginedamage
couldoccurifthecoolingsystemis
notperiodicallydrainedandmain-
tained.SeeCoolingSystemonpage
5-80forfurtherinformation.
5-62Y53-6060-1C1(03/17)
5
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