g031861
Figure79
Note:Donotcleanausedelementbecause
cleaningitcandamagetheltermedia.
Important:Neverattempttocleanthesafety
lter(Figure80).Replacethesafetylter
afterevery3primarylterservices.
g009712
Figure80
1.Air-cleanersafetylter
2.Resettheindicator(Figure78)ifitshowsred.
Servicingthe
Diesel-OxidationCatalyst
(DOC)andtheSootFilter
ServiceInterval:Every6,000hoursorcleanthesoot
lterifenginefaultsSPN3720FMI
16,SPN3720FMI0,orSPN3720FMI
16displayintheInfoCenter.
•IfadvisorymessageADVISORY179displaysinthe
InfoCenter,theDPFisnearingtherecommended
pointforservicingthediesel-oxidationcatalystand
thesootlter.
g213865
Figure81
•IfenginefaultsCHECKENGINESPN3251FMI0,
CHECKENGINESPN3720FMI0,orCHECKENGINE
SPN3720FMI16intheInfoCenter(Figure82)
displayintheInfoCenter,cleanthesootlterusing
thestepsthatfollow:
61