Operator's Manual

Table Of Contents
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.To
keeptheDPFclearofsoot,rememberthefollowing:
Passiveregenerationoccurscontinuouslywhile
theengineisrunning—runtheengineatfull
enginespeedwhenpossibletopromoteDPF
regeneration.
Ifthebackpressureistoohigh,theengine
computersignalsyouthroughthedisplay
whenadditionalprocesses(assistandreset
regeneration)arerunning.
Operateandmaintainyourmachinewiththefunction
oftheDPFinmind.Engineload,athighidle
enginespeed,generallyproducesadequateexhaust
temperatureforDPFregeneration.
Important:Minimizetheamountoftimethatyou
idletheengineoroperatetheengineatlow-engine
speedtohelpreducetheaccumulationofsootin
thesootlter.
CAUTION
Theexhausttemperatureishot(approximately
600°C(1,112°F)duringDPFparked
regenerationorrecoveryregeneration.Hot
exhaustgascanharmyouorotherpeople.
Neveroperatetheengineinanenclosed
area.
Makesurethattherearenoammable
materialsaroundtheexhaustsystem.
Nevertouchahotexhaustsystem
component.
Neverstandnearoraroundtheexhaust
pipeofthemachine.
DPFSootAccumulation
Overtime,theDPFaccumulatessootinthesoot
lter.Thecomputerfortheenginemonitorsthe
sootlevelintheDPF.
Whenenoughsootaccumulates,thecomputer
informsyouthatitistimetoregeneratethediesel
particulatelter.
DPFregenerationisaprocessthatheatstheDPF
toconvertthesoottoash.
Inadditiontothewarningmessages,thecomputer
reducesthepowerproducedbytheengineat
differentsoot-accumulationlevels.
RefertotheSoftwareGuideforfaultmessagesand
recommendedactions.
DPFAshAccumulation
Thelighterashisdischargedthroughtheexhaust
system;theheavierashcollectsinthesootlter.
Ashisaresidueoftheregenerationprocess.Over
time,thedieselparticulatelteraccumulatesash
thatdoesnotdischargewiththeengineexhaust.
Thecomputerfortheenginecalculatestheamount
ofashaccumulatedintheDPF.
Whenenoughashaccumulates,theengine
computersendsinformationtothedisplayinthe
formofasystemadvisoryoranenginefaultto
indicatetheaccumulationofashintheDPF .
Theadvisoryandfaultsareindicationsthatitis
timetoservicetheDPF .
Inadditiontothewarnings,thecomputerreduces
thepowerproducedbytheengineatdifferent
ash-accumulationlevels.
RefertotheSoftwareGuideforfaultmessagesand
recommendedactions.
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