Maintenance
ChangeHydraulicSystem
FilterandFluid
ServiceInterval:Aftertherst75hours
Every500hoursthereafter
(Every250hoursifusing
Mobil115W50thereafter)
Mayneedmoreoften
undersevereconditions.
1.Stopengine,waitforallmovingpartstostop,and
allowenginetocool.Removekeyandengage
parkingbrake.
2.Locatethetwoltersunderthetransmissions.
Removelterguards.
3.Carefullycleanareaaroundlters.Itisimportant
thatnodirtorcontaminationenterhydraulic
system.
4.Unscrewlterstoremoveandallowoiltodrain
fromdrivesystem.
Important:Beforereinstallingnewlters,
applyathincoatofExmarkPremiumHydro
Oilonthesurfaceoftheltersrubberseal.
Turntheltersclockwiseuntilrubberseal
contactsthelteradapterthentightenthelter
anadditional3/4to1fullturn.
5.Loosenortemporarilyremovetheventplugon
eachtransmissionandllthroughexpansion
reservoir,whenoilcomesoutofventhole
retightenplug.
ExmarkPremiumHydroOilisrecommended.
Refertothechartforanacceptablealternative:
HydroOil
ServiceInterval
ExmarkPremiumHydro
Oil(Preferred)
Afterrst75hours
*Every500hours
thereafter
Mobil115W50Afterrst75hours
*Every250hours
thereafter
*Mayneedmoreoftenundersevereconditions.
Torqueplugsto180in-lb(244N-m).Continueto
addoiluntilitreachestheFULLCOLDlineon
theexpansionreservoir.
g035842
Figure67
Rightsideshown
1.Filterguardandoillter
3.Transaxledrive
2.Ventplug
6.Raisetherearofmachineupandsupportwith
jackstands(orequivalentsupport)justhigh
enoughtoallowdrivewheelstoturnfreely.
7.Startengineandmovethrottlecontrolaheadto
1/2throttleposition.Disengageparkingbrake.
A.Withthebypassvalveopenandtheengine
running,slowlymovethedirectionalcontrol
inbothforwardandreverse(5or6times).
B.Withthebypassvalveclosedandtheengine
running,slowlymovethedirectionalcontrol
inbothforwardandreversedirections(5to
6times).Checktheoillevel,andaddoilas
requiredafterstoppingtheengine.
C.ItmaybenecessarytorepeatstepsAandB
untilalltheairiscompletelypurgedfrom
thesystem.Whenthetransaxleoperatesat
normalnoiselevelsandmovessmoothly
forwardandreverseatnormalspeeds,then
thetransaxleisconsideredpurged.
Note:DoNotchangethehydraulicsystemoil
(exceptforwhatcanbedrainedwhenchanginglter),
unlessitisfelttheoilhasbeencontaminatedorbeen
extremelyhot.
Changingoilunnecessarilycoulddamagehydraulic
systembyintroducingcontaminantsintothesystem.
CheckSparkArrester
(ifequipped)
ServiceInterval:Every50hours
65