Peterbilt 348 2017 - Page 336

NOISEANDEMISSIONCONTROL
Piping
•Checkexhaustpipingforrust,
corrosion,ordamage.Replace
deterioratedpipingbeforeholes
appear.Ifpipingisperforatedat
anypoint,temporarypatchingor
laggingisacceptableuntilyoucan
havepermanentrepairsmade.
Onturbochargedengines,check
jointsatangesandmounting
bracketsfortightness.
DieselParticulateFilters(DPF)
•Checkdieselparticulatelter
(DPF),clamps,andmounting
brackets.Tightenifnecessary.
Inspectdieselparticulatelter
(DPF)forsignsofrustorcorrosion.
•Checkinternalbafing.Youcan
dothisbylisteningforrattling
soundswhiletappingonthediesel
particulatelter(DPF)witha
rubbermalletorrevvingtheengine
upanddownthroughitsnormal
operatingrange.
DieselExhaustFluidTank
Vehiclesthatcomplywith2010EPA
emissionrequirementswillhavea
DieselExhaustFluid(DEF)tank
mountedtothevehicleframe.
DEFlter
TheDEFsystemhasasupply
pumplterandthisltershouldbe
servicedaccordingtothepreventive
maintenanceschedule.Followthese
5-126Y53-6060-1C1(03/17)
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