Navistar MaxxForce 13 - Page 53

DIAGNOSTICMANUAL
1.NewAftertreatmentFuelInjector
(AFI)gasket
2.EarlyproductionAFIgasket
Figure4AFIGasket
Step
ActionDecision
7
CAUTION
Donotremovethenozzleinjectorfromthe
doserhousing.Spraypatterntestisno
longeravisualcheckforAftertreatmentFuel
Injector(AFI)replacement.
PerformAftertreatmentFuelInjector(AFI)visualinspection.
RemovetheAFIdoserhousingfromtheturbooutletpipe(see
EngineServiceManual)andperformthefollowingvisualchecks:
•CorrectAFIgasketisinstalled(Figure4).
•AFIandboreareunrestrictedandfreeofcarbonbuildup
•AFItipfreeofcracksandotherdamage
DoesAFIpassallvisualchecks?
Yes:InstallAFIandgotostep8
No:Correctallfaultsfoundduring
visualcheck(s).Afterrepairsare
complete,installAFIandgotostep
8.
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