Maintenance
CAUTION
Raisingthemowerdeckforserviceor
maintenancerelyingsolelyonmechanical
orhydraulicjackscouldbedangerous.The
mechanicalorhydraulicjacksmaynotbe
enoughsupportormaymalfunctionallowing
theunittofall,whichcouldcauseinjury.
DoNotrelysolelyonmechanicalorhydraulic
jacksforsupport.Useadequatejackstands
orequivalentsupport.
3.Removethepumpdrivebelt.
4.Placeacatchpanunderthehydro.
5.Carefullycleanareaaroundthelters.Itis
importantthatnodirtorcontaminationenterthe
hydraulicsystem.
6.Usingasocket,unscrewlterstoremoveand
allowoiltodrain.
7.Beforeinstallingthenewlters,applyathincoat
ofExmarkPremiumHydrooilonthesurfaceof
thetworubberseals.
8.Installthenewltersandtorqueto14ft-lb(19
N-m).
9.FillthehydraulicsystemasstatedinCheck
HydraulicOilLevelsection.
ExmarkPremiumHydroOilisrecommended.
Refertothechartforanacceptablealternative:
HydroOilChangeInterval
ExmarkPremiumHydro
Oil(Preferred)
500Hours
Mobil115W50250Hours
10.Removethecatchpanandproperlydisposeof
hydrooilandlteraccordingtolocalcodes.
11.Re-installthepumpdrivebelt.
12.Startengineandmovethrottlecontrolaheadto
fullthrottleposition.Movethespeedcontrol
leverstothefullspeedandrunforoneminute.
Shutdownthemachine,allowthehydrostocool
andrecheckoillevel.
13.Removethejackstands.
Note:DoNotchangethehydraulicsystemoil
(exceptforwhatcanbedrainedwhenchanginglter),
unlessitisfelttheoilhasbeencontaminatedorbeen
extremelyhot.
Changingoilunnecessarilycoulddamagehydraulic
systembyintroducingcontaminantsintothesystem.

WheelHub-SlottedNut

TorqueSpecication

ServiceInterval:Aftertherst100hours
Every500hoursthereafter
Whentighteningtheslottednutonthewheelmotor
taperedshaft:
1.Removeanddiscardthecotterpin.
2.Torquetheslottednutto200ft-lb(271N-m).
3.Checkdistancefrombottomofslotinnutto
insideedgeofhole.Twothreads(0.1inch)orless
shouldbeshowing.
Figure25
1.0.1inchmax2.Nomorethantwo
threads(0.1inchmax)
shouldbeshowinghere.
4.Ifmorethantwothreads(0.1inch)areshowing
removenutandinstallwasher(P/N1-523157)
betweenhubandnut.
5.Torquetheslottednutto200ft-lb(271N-m).
6.Thentightennutuntilthenextsetofslotslineup
withthecrossholeinshaft.DoNotloosennut
toaligntheslot.Ifrequired,tightentothenext
setofslots.
7.Installnewcotterpin(P/N1-806800).
Note:DoNotuseanti-seizeonwheelhub.
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