Navistar MaxxForce 9

SECTION5–MAINTENANCESCHEDULEANDSERVICEPROCEDURES
Pushresetbuttontocheckairrestrictionindicator.Iftheair
lterwasnotchanged,theyellowindicatorwillreturntothe
samereadingwhenthevehicleisdrivenundernormaldriving
conditions.
Iftheyellowpositionindicatorhaslockedintheredzone,a
newairltershouldbeinstalledtopreventlowenginepower
orenginedamage.
1.Removerestrictedairlterelementanddiscard.
CAUTION
Topreventenginedamage,donotuse
compressedairtocleanlterhousing.
2.Useacleanwater-dampenedclothtocleaninsideofairlter
housing.
3.Inspectairlterhousingfordamageordistortion.Installnew
housingifnecessary.
4.Installanewairlterelement.
5.Pushresetbuttononairrestrictionindicator.Theyellow
indicatorwillreturntozero.
ENGINEOILANDFILTER
WARNING
Topreventpersonalinjuryordeath,wearsafety
glassesandavoidmovingcomponentssuchas
fans,pulleys,andbeltswhentakinganengineoil
sample.
Engineoilsamplingcanbeutilizedforthefollowing:
EngineOilSampling-Optional
1.Determineoilchangeintervalbaseduponfuel
consumptionandspecicengineapplication.
2.Catchcontaminateswhich,ifleftunattended,mayresult
inenginefailure.
ServiceInterval(baseduponfuelconsumptionandspecic
engineapplication):
Seechartsforspecicenginefamilyandserviceinterval.
CAUTION
Topreventenginedamage,donotextend
recommendedoilchangeintervals.
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