Utility Vehicle User Manual

GearcaseLubrication
NOTE:UseengineoilwithAPIclassicationSJforgasolineenginesandCFfordieselengines.
Usingmulti-gradeoils(5W-20,10W-30,and10W-40)mayincreaseoilconsumption.Ifmulti-gradeoilisused,check
theoillevelmorefrequently.
SAE 5 W-30
SAE 10W-30/ SAE 10W-40
SAE 30
SAE 40
SAE 10W-30/SAE 10W-40
SAE 20
SAE 30
SAE 10W
213
Figure28OilViscosityChart–GasolineVehicles
214
Figure29OilViscosityChart–DieselVehicles
GEARCASELUBRICATION
NOTE:Disposeofusedoilaccordingtotheenvironmentallawsandregulationsforyourarea.
LUBRICATIONLEVELCHECKFORFRONTDIFFERENTIAL,TRANSMISSION,ANDREAR
DIFFERENTIAL
Eachgearcasecomponentisequippedwithtwooilportplugs(1and2)(Figure30,Figure31,andFigure32).When
thevehicleisonalevelsurface,usethelevelindicatorhole(upperplug)(1)asalubricantlevelindicator.Lubricant
levelshouldbeevenwiththebottomoflevelindicatorhole(1).
LUBRICATIONCHANGEFORFRONTDIFFERENTIAL,TRANSMISSION,ANDREAR
DIFFERENTIAL
Usethelowerplug(2)fordrainage(Figure30,Figure31,orFigure32).Removebothplugstoallowthelubricantto
drainfaster.SeeprecedingNOTE.
Metalparticlesmaybediscoveredintheuidoronthemagneticdrainplugwhenchangingthedifferentialor
transmissionuid.Theseparticlesarenormalandexpectedfortherstfewuidchanges.Thisisaresultofthegears
being“netforged”,meaningthegearsareforgedtoashapeveryclosetothenalgearsizebuttheteetharenotnish
machinedpriortoassembly.The“nishmachining”occurswhenthegearsmakecontactunderloadduringvehicle
operation.Themagneticdrainplugisincludedinthedesigntocollectthemetalparticlesgeneratedfromthegear
breakinprocess.Thisisanestablishedprocessandisnotdetrimentaltogearservicelife.
Frontdifferential:
Cleanandinstallthedrainplug(2)andwasherbeforellingthefrontdifferentialwithnewlubricant(Figure30).Tighten
thedrainplugto108in-lb(12N·m).Useafunnelwhenllingthefrontdifferentialthroughthelubricantlevelindicator
hole(1).SeePeriodicLubricationScheduleonpage36.Tightenthelevelindicatorplugto120in-lb(14N·m).
Page44HUV4421Owner’sManual