Mack MRU - Page 37

MAINTENANCEANDLUBRICATION33
Toproperlyinstallanewlterelement:
1Wipetheaircleanerhousingclean.
2Loosenthecoverretainingnutsandremovethelterelement.
3Inspectsealingareasfor"dirttracks"whichwouldindicatethatdusthasleaked
pasttheseal.Ifdirttracksarefound,thecausemustbedeterminedandcorrected.
4Thoroughlycleantheinsideoftheaircleanercanisterwithadampclothor
vacuumcleaner.
5Inspecttheinsideofthecanisterforrust.Ifrustispresent:
•Removetheaircleanercanisterfromthechassis.
•RemovealllooserustwithawirebrushorcoarseScotchBrite®pad.
•ThoroughlywashtheareawithPPGDX-440®,orequivalentwaxandgrease
remover.
•EtchandpreparewithPPGMetalPrep79(DX-579®),orequivalent.
•Rinsewithwateranddrythoroughly.
•TreattheareawithundilutedGalvaprepSGDX-520®,orequivalent.
•Rinsewithwateranddrythoroughly.
•PaintwithPPGDP40/401®,orequivalent.
•Reinstalltheaircleanercanisteronthechassis.
6Inspectthesealingareasofthehousingfordamage.Repairorreplaceasnecessary.
7UseMACKTrucks,Inc.,approvedreplacementelementsandgaskets.Makesure
thenewelementsandgasketsarenotdamaged.Besuretousenewgasketseach
timetheelementischanged.
8Reinstallthecoverandtorquetheretainingnutsevenlyat11N.m(8-10lb-ft).
9ResettheFilterMinderbypushinginthebutton.