Navistar MaxxForce 7

SECTION5–MAINTENANCESCHEDULEANDSERVICEPROCEDURES
ServiceProcedures(cont.)
SECONDARYFUELFILTER(cont.)
Figure36SecondaryFuelFilterAssembly
1.Primaryfuelltercap
2.Secondaryfuelltercap
3.SecondaryfuelltercapO-ring
4.Fuelcooler
5.Fuellterelement
2.Loosenthesecondaryfuelltercovercounterclockwise3
1/2turnstoallowthesecondaryfuellterhousingtovent.
3.Removefuelltercapandfuellterelementfromthe
secondaryfuellterhousing.
4.RemoveO-ringfromfuelltercapanddiscardO-ring.
5.Removefuellterelementfromfuelltercapanddiscard
accordingtoapplicableregulations.
6.Cleanmatingsurfaces.
CAUTION:Topreventenginedamage,donotaddfueltothe
fuellterhousing;thiscanaddcontaminantstothefuel.
7.CoatanewO-ringforthefuelltercapwithcleandieselfuel
andinstallontothefuelltercap.
CAUTION:Topreventenginedamage,thefuelltercapmust
betightenedonthefuellterhousing.
8.Attachfuelltercaptothefuellterelement.Pushthecap
ontotheelementuntilitsnapstosecureit.
9.Coatthethreadsofthefuelltercapwithcleandieselfuel.
10.Installthefuellterelementwithcapintothesecondaryfuel
lterhousing.Slowlylowerthefuellterelementintothe
housinguntilfuelltercapisreadytobesecuredtothe
secondaryfuellterhousing.
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