ExhaustSystem
g286074
Figure13
(Model31902/31903shown)
1.Exhausttube
3.Lockwasher(2each)
2.Bolt(2each)4.Clamp
TheenginethatpowerstheGroundsmaster3300(Models31902and31903)
machineisequippedwithanexhaustsystemthatincludesaDieselParticulate
Filter(DPF).TheDPFincludesaDieselOxidationCatalyst(DOC),aSootFilter
(SF),temperaturesensors,andapressuredifferentialsensor.TheDPFiskept
cleanthroughaseriesofregenerationprocessesthatarecontrolledbythe
engineECU;refertoDieselParticulateFilter(page4–5).
ReconditioningofSootFilter(SF)maybenecessaryoverthelifeofthemachine
whichwillrequireexhaustsystemdisassembly.Sootlterreconditioningshould
bedonebyacompanythathasthenecessaryequipment.ContactyourT oro
Distributorforinformationonreconditioningthesootlter.
TheDieselOxidationCatalyst(DOC)hasaservicelifeexpectancyandrequires
replacementatrecommendedintervals.ReplacementoftheDOCwillrequire
exhaustsystemdisassembly.
Informationaboutthediesel-particulatelter(DPF)operationandmaintenance
canbefoundintheYanmarTNV(Tier4)SeriesServiceManualandtheYanmar
TNV(Tier4)SeriesTroubleshootingManual.
RemovingandInstallingtheExhaustSystem
RefertoFigure13forthisprocedure.
Groundsmaster
®
3200,3300and3310
Page4–11
Engine:ServiceandRepairs
19240SLRevA