Peterbilt 348 2017 - Page 335

NOISEANDEMISSIONCONTROL
ExhaustSystem
•Checkforexhaustleaks,
whichwouldindicatealeaking
manifoldgasket;replacegasketif
necessary.
•Checkcapscrewsfortightness,
includingthoseattheanges.
Refertotheenginemanufacturer's
servicemanualforproper
tighteningsequenceandtorque
values.
JointsandClamps
•Checkforleaks,andtightenas
necessary.Checkfordeterioration
ordentsinpipesandclampswhich
couldallowexhausttoescape.
•Replaceanyserviceablejoints,
exiblepipesandgasketsatthe
serviceintervals.
SelectiveCatalystReduction(SCR)
•CheckSCRcanisterlter,clamps
andmountingbrackets.Tightenif
necessary.InspectSCRcanister
forsignsofrustorcorrosion.
(03/17)Y53-6060-1C15-125
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