EasyManuals Logo

Navistar MaxxForce 9 User Manual

Navistar MaxxForce 9
102 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #58 background imageLoading...
Page #58 background image
SECTION4ENGINEOPERATION
Highidlespeedisanonadjustablefactorysetting.Thehighidle
settingdependsontheapplicationoftheengineandhasthe
followingranges:
MaxxForce
®
DT:2600rpmthrough2770rpm
MaxxForce
®
9and10:2325rpmthrough2425rpm
EXTENDEDIDLINGPERIODS
CAUTION
Topreventenginedamage,donotextendlowidle
periods.
Idlingperiodsover15minutesshouldbeavoided.Dieselengine
efciencyisimprovedwhenthecylindertemperatureremains
high.Lowtemperatureincylindersmaycausethefollowing:
Unburnedfuelmayseepfromexhaustmanifoldgaskets
andvehicleexhaustsystemconnections.Thisseepage
hasthedarkcoloredappearanceoflubricatingoil.
Incompletecombustionandunburnedfuelwashes
lubricatingoilfromcylindersleeves.Unburnedfuel
willbecarriedintothelubricatingoil,dilutetheoil,and
changeoilviscosity.
Carbonformsoninternalcomponentsofturbochargers
andExhaustGasRecirculation(EGR),reducingengine
efciency.
CarbonclogsanddamagestheDieselParticulateFilter
(DPF).
EXHAUSTAFTERTREATMENTSYSTEM
Theengineandvehicleexhaustpipingincludesan
AftertreatmentSystemtocapturesootandotherparticulates
beforetheyexittheexhaustpipe.Thesootiscapturedbythe
DieselParticulateFilter(DPF)andisperiodicallyconvertedto
carbondioxide(CO2)byaRegeneration(Regen)process.
TheRegenprocessmaytakeplaceduringvehicleoperation
(ActiveRegen).TheRegenprocesswillbetriggeredbyeithera
time-basedorasootmassbuildup-basedstrategy.
AParkedRegenprocessoccurswhenaMovingRegenisnot
possible,suchaswhenthereisnotenoughthermalenergyfor
DieselOxidationCatalyst(DOC)lightoff.Thevehicleisparked
(stationary).
WhenaRegenisrequired,theECMcommandsthe
AftertreatmentFuelInjector(AFTFI)toinjectfuelintothe
exhaustsystem.ADOCoxidizestheinjectedfueltoincrease
theexhaustgastemperatureasneededforDPFRegen.
AParkedRegenerationwillberequestedifthePassive
Regenerationcannotbecompletedduringdriving.
Inthiscase,alampwillbelittoalerttheoperatorto
performaParkedRegeneration.
Theoperatormustparkthevehicleandthenperformthe
Regenasrequired.
FollowtheParkedRegenerationprocesslistedinthe
VehicleOperatorManual.
Page50

Table of Contents

Other manuals for Navistar MaxxForce 9

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Navistar MaxxForce 9 and is the answer not in the manual?

Navistar MaxxForce 9 Specifications

General IconGeneral
BrandNavistar
ModelMaxxForce 9
CategoryEngine
LanguageEnglish

Related product manuals