Toro Groundsmaster 4500-D Series User Manual

DieselParticulateFilter
Thedieselparticulatelter(DPF)usedonYanmarTier4compliantenginesis
designedtobreakdownthehazardouselementsintheexhaustandpreventthe
dischargeofunburntfueloroilknownasparticulatematterorsoot.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(leastto
most).Thelengthoftimetheenginewilloperateatahigherthannormalexhaust
temperaturetoburnoutthesootisalsorelatedtotheamountofparticulate
matterinthesootlter.
Typesofregenerationthatareperformedautomatically(whilethemachineisoperating)
Type
Conditions
Description
Passive
Occursduringnormaloperationofthe
machineathighenginespeedorhigh
engineload.
TheDPFprocesseshighheatexhaust
gasses,oxidizingharmfulemissions
andincineratingsoottoash.
Passiveregenerationoccursaspartof
normalengineoperation.
TheInfoCenterdoesnotdisplayanicon
duringpassiveregeneration.
Whileoperatingthemachine,runthe
engineatfull-enginespeedandhigh
loadwhenpossibletopromoteDPF
regeneration.
Assist
Occursbecauseofprolongedoperation
atlowenginespeed,lowengineload,
orwhentheengineECUdetectsthe
sootlterisbecomingobstructed.
TheengineECUadjuststheexhaust
intakethrottletoraisetheexhaust
temperature.
TheInfoCenterdoesnotdisplayanicon
duringassistregeneration.
Reset
Occursevery100hoursofengine
operation.
Occursafteranassistregenerationif
theengineECUdeterminestheassist
regenerationdidnotsufcientlyreduce
thesootlevel.
TheengineECUadjuststhe
enginesettingtoraisetheexhaust
temperature.
TheengineECUadjuststheexhaust
intakethrottleandtheinjectortimingto
raisetheexhausttemperature.
Donotshutofftheengineorreduce
theenginespeedwhilethereset
regenerationisprocessing.
Groundsmaster
®
4500-D/4700-D
Page4–7
YanmarDieselEngine:GeneralInformation
19245SLRevA

Toro Groundsmaster 4500-D Series Specifications

General

Brand	Toro
Model	Groundsmaster 4500-D Series
Category	Lawn Mower
Language	English