Service Manual

DieselParticulateFilter
Thedieselparticulatelter(DPF)usedonYanmarTier4compliantenginesis
designedtobreakdownthehazardouselementsintheexhaustandpreventthe
dischargeofunburnedfueloroilknownasparticulatematterorsoot.TheDPF
includesaDieselOxidationCatalyst(DOC),aSootFilter(SF),2temperature
sensors,andapressuredifferentialsensor.Additionalinformationregardingthe
DieselParticulateFilter(DPF)canbefoundintheYanmarOperationManual–
IndustrialEnginesTNVsuppliedwithyourmachine.
Regeneration
TheengineECUmonitorstheexhaustpressurebeforeandafterthesootlter
intheDPFtodetermineifsootisaccumulating.Ifsootisaccumulatingduring
normalengineoperation,thepressuredifferentialwillincrease.Theincrease
inpressurewillsignaltheenginetobeginaprocesscalledregeneration.
Regenerationincreasestheexhausttemperatureandthelengthoftimethe
engineoperatesatahigherthannormalexhausttemperature,incineratingthe
builtupsootandturningitintoash.Thedifferenttypesofregenerationusedare
listedinorderbasedontheamountofparticulatematterinthesootlter(least
tomost).
Note:TheuserinterfaceandInfoCenterdisplaysforDPFregenerationchanged
withmachinesoftware120-6372P .UsetheInfoCenterAboutscreentoverify
thesoftwareinstalledonthemachine.
•Formachineswithsoftware120-6372AthruO:CompleteDPF
regenerationinstructionscanbefoundintheupdatedtractionunitOperator’s
Manualforthespecicmachine.Visitwww.toro.comtodownloadtheupdated
tractionunitOperator’sManualforthemachineorcontactanAuthorized
ToroDistributorforassistance.
•Formachineswithsoftware120-6372Pandup:CompleteDPF
regenerationinstructionscanbefoundinthetractionunitOperator’sManual
forModels30609and30636machineserialnumber401420001andup
documentation.Visitwww.toro.comtodownloadthetractionunitOperator’s
ManualwiththecorrectDPFregenerationinstructionsforthemachine.
Typesofregenerationthatareperformedautomatically(whilethemachineisoperating)
Type
Conditions
Description
Passive
Occursduringnormaloperationofthe
machineathighenginespeedorhigh
engineload.
TheDPFprocesseshighheatexhaust
gasses,oxidizingharmfulemissions
andincineratingsoottoash.
TheInfoCenterdoesnotdisplayanicon
duringpassiveregeneration.
Groundsmaster
®
4100-D&4110-D
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YanmarDieselEngine:GeneralInformation
13203SLRevE