Exmark SAR481KA30 - Wheel Hub Nut and Transmission Output Shaft Torque Specification; Check Spark Arrester (if Equipped); Thread Locking Adhesives

Maintenance
CAUTION
Raisingtheunitforserviceormaintenance
relyingsolelyonmechanicalorhydraulic
jackscouldbedangerous.Themechanicalor
hydraulicjacksmaynotbeenoughsupport
ormaymalfunctionallowingtheunittofall,
whichcouldcauseinjury.
DoNotrelysolelyonmechanicalorhydraulic
jacksforsupport.Useadequatejackstands
orequivalentsupport.
7.Startengineandmovethrottlecontrolaheadto
1/2throttleposition.Disengageparkingbrake.
WARNING
Enginemustberunninganddrivewheels
mustbeturningsomotioncontroladjustment
canbeperformed.Contactwithmovingparts
orhotsurfacesmaycausepersonalinjury.
Keepngers,hands,andclothingclearof
rotatingcomponentsandhotsurfaces.
A.Withtheenginerunning,slowlymovethe
directionalcontrolinbothforwardand
reversedirections(5to6times).Checktheoil
level,andaddoilasrequiredafterstopping
theengine.
B.ItmaybenecessarytorepeatstepA.untilall
theairiscompletelypurgedfromthesystem.
Whenthetransaxleoperatesatnormalnoise
levelsandmovessmoothlyforwardand
reverseatnormalspeeds,thenthetransaxle
isconsideredpurged.
Note:DoNotchangethehydraulicsystemoil
(exceptforwhatcanbedrainedwhenchanginglter),
unlessitisfelttheoilhasbeencontaminatedorbeen
extremelyhot.
Changingoilunnecessarilycoulddamagehydraulic
systembyintroducingcontaminantsintothesystem.
WheelHubNutand
TransmissionOutputShaft
TorqueSpecication
ServiceInterval:Aftertherst100hours
Every500hoursthereafter
Torquethenutonthewheelmotortaperedshaftto
140-155ft-lb(190-210N-m).
Note:DoNotuseanti-seizecompoundonthe
wheelhub.
CheckSparkArrester
(ifequipped)
ServiceInterval:Every50hours
WARNING
Hotexhaustsystemcomponentsmayignite
gasolinevaporsevenaftertheengineisstopped.
Hotparticlesexhaustedduringengineoperation
mayigniteammablematerials.Firemayresult
inpersonalinjuryorpropertydamage.
DoNotrefuelorrunengineunlesssparkarrester
isinstalled.
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Waitformufertocool.
3.Ifanybreaksinthescreenorweldsareobserved,
replacearrester.
4.Ifpluggingofthescreenisobserved,remove
arresterandshakelooseparticlesoutofthe
arresterandcleanscreenwithawirebrush(soak
insolventifnecessary).Reinstallarresteron
exhaustoutlet.
ThreadLockingAdhesives
Threadlockingadhesivessuchas“Loctite242”
or“Fel-Pro,Pro-LockNutType”areusedonthe
followingfasteners:
Sheaveretainingboltinendofenginecrankshaft.
Allsetscrews.
Casterwheelspacernuts.
29