Operator's Manual

DPFAshAccumulation
•Thelighterashisdischargedthroughtheexhaust
system;theheavierashcollectsinthesootlter.
•Ashisaresidueoftheregenerationprocess.Over
time,thedieselparticulatelteraccumulatesash
thatdoesnotdischargewiththeengineexhaust.
•Thecomputerfortheenginecalculatestheamount
ofashaccumulatedintheDPF.
•Whenenoughashaccumulates,theengine
computersendsinformationtotheInfoCenterin
theformofasystemadvisoryoranenginefaultto
indicatetheaccumulationofashintheDPF .
•Theadvisoryandfaultsareindicationsthatitis
timetoservicetheDPF .
•Inadditiontothewarnings,thecomputerreduces
thepowerproducedbytheengineatdifferent
ash-accumulationlevels.
InfoCenterAdvisoryandEngineWarningMessages—AshAccumulation
Indication
Level
AdvisoryorFaultCode
EngineSpeed
Reduction
EnginePowerRatingRecommendedAction
Level1:
System
Advisory
g213865
Figure33
Advisory#179
None
100%
Notifyyourservice
departmentthatadvisory
#179displaysinthe
InfoCenter.
Level2:
Engine
Warning
g213863
Figure34
CheckEngine
SPN3720,FMI16
None
Thecomputer
de-ratestheengine
powerto85%
ServicetheDPF;
refertoServicingthe
Diesel-OxidationCatalyst
(DOC)andtheSoot
Filter(page53)
Level3:
Engine
Warning
g213864
Figure35
CheckEngine
SPN3720,FMI0
None
Thecomputer
de-ratestheengine
powerto50%
ServicetheDPF;
refertoServicingthe
Diesel-OxidationCatalyst
(DOC)andtheSoot
Filter(page53)
Level4:
Engine
Warning
g214715
Figure36
CheckEngine
SPN3251,FMI0
Enginespeedatmax
torque+200rpm
Thecomputer
de-ratestheengine
powerto50%
ServicetheDPF;
refertoServicingthe
Diesel-OxidationCatalyst
(DOC)andtheSoot
Filter(page53)
33