Navistar MaxxForce 9

SECTION3–INSTRUMENTS,INDICATORS,ANDSWITCHES
HighExhaustSystemTemperature(HEST)Lamp
Figure16HESTLamp.
WARNING
Exhaustcomponentsareoperatingundernormal
conditionsandexhaustgasesareatextremely
hightemperatures.Whenstationary,keepaway
frompeopleandammablematerials,vapors,or
structures,orstoptheengine.
HESTlampwillilluminatewhentheexhaustsystemishotand
regenerationisinprogress.Foradditionalinformation,seethe
applicableVehicleOperatorManual.
DieselParticulateFilter(DPF)Indicator
Figure17DPFIndicator.
TheDPFindicatoroperatesatthreedifferentlevels.
LevelOne
•TheDPFindicatorwillilluminatesolidYELLOWand
remainonwhenthelevelsofsootexceedacceptable
levels.Theregenerationprocessshouldbeginbyusing
eitherofthefollowingtwomethods.Thelampwillturn
offwhentheregenerationprocessiscomplete.
•Thevehiclecanbesafelydrivenonthehighwayat
highwayspeedswhiletheregenerationprocessis
inoperation.
•Orthevehicleshouldbeparkedinasafelocation
andstarttheParkedRegenerationprocessto
preventlossofpower.
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