Toro Groundsmaster 5910 - Diesel Particulate Filter (DPF); DPF Regeneration Overview

machineintooroutofabuilding),youwillnotbe
ableraiseallthecuttingunitsatonce.Instead,
youcanonlyraise1cuttingunitatatime.
2.Pushthedeck-liftswitchesrearwardtoraise
thedecks.
LoweringtheDecks
1.Usingthehandle,unhookthelatchesholding
thedecksintheraisedposition.
2.Whilesittingintheoperator’sseat,turnthe
ignitionkeytotheRUNposition(Figure31).
g032698
Figure31
1.Handle2.Latch
3.Pushthedeck-liftswitchesforwardtolowerthe
decks.
DieselParticulateFilter
Regeneration
Thedieselparticulatelter(DPF)ispartoftheexhaust
system.Thediesel-oxidationcatalystoftheDPF
reducesharmfulgassesandthesootlterremoves
sootfromtheengineexhaust.
TheDPFregenerationprocessusesheatfromthe
engineexhausttoincineratethesootaccumulatedon
thesootlter,convertingthesoottoash,andclears
thechannelsofthesootltersothatlteredengine
exhaustowsouttheDPF.
Theenginecomputermonitorstheaccumulationof
sootbymeasuringthebackpressureintheDPF .If
thebackpressureistoohigh,sootisnotincinerating
inthesootlterthroughnormalengineoperation.T o
keeptheDPFclearofsoot,rememberthefollowing:
•Passiveregenerationoccurscontinuouslywhile
theengineisrunning—runtheengineatfull
enginespeedwhenpossibletopromoteDPF
regeneration.
•IfthebackpressureintheDPFistoohighora
resetregenerationhasnotoccurredfor100hours,
theenginecomputersignalsyouthroughthe
InfoCenterwhenresetregenerationisrunning.
•Allowtheresetregenerationprocesstocomplete
beforeshuttingofftheengine.
Operateandmaintainyourmachinewiththefunction
oftheDPFinmind.Engineloadathighidle(full
throttle)enginespeedgenerallyproducesadequate
exhausttemperatureforDPFregeneration.
Important:Minimizetheamountoftimethatyou
idletheengineoroperatetheengineatlow-engine
speedtohelpreducetheaccumulationofsootin
thesootlter.
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