Exmark QSS708GEM42200 - Bleeding the Hydraulic System

Maintenance
6.Locateandremovetheventplugoneach
transmission
7.Unscrewtheltertoremoveandallowoilto
drainfromdrivesystem.
Repeatthisprocedureforbothlters.
InstallingtheHydraulicSystem
Filters
G008748
3/4
1
2
3
4
5
6
Figure57
1.Applyathincoatofoilonthesurfaceofthe
rubbersealofeachlter.
2.Turnthelterclockwiseuntilrubbersealcontacts
thelteradapterthentightenthelteran
additional3/4to1fullturn.Repeatfortheother
lter
3.Installthelterguardsovereachlteras
previouslyremoved.Usethethreescrewsto
securethelterguards.
4.Verifytheventplugsareremovedbeforeadding
theoil.
5.Slowlypourthespeciedoilthroughexpansion
reservoiruntiloilcomesoutofoneofthevent
plugholes.Stopandinstallthatventplug.Torque
theplugto180in-lb(20.3N-m).
6.Continuetoaddoilthroughtheexpansion
reservoiruntiloilcomesoutoftheremaining
ventplugholeonthesecondtransmission.Stop
andinstallthatventplug.Torquetheplugto180
in-lb(20.3N-m).
7.Continuetoaddoilthroughtheexpansion
reservoiruntilitreachestheFULLCOLDlineon
theexpansionreservoir.
8.Installthetransaxleguard.
9.ProceedtotheBleedingtheHydraulicSystem
section.
Important:Failuretoperformthe
Bleeding
the Hy draulic System procedureafter
changinghydraulicltersandoilcanresult
inirreparabledamagetothetransaxledrive
system.
BleedingtheHydraulicSystem
1.Entertheoperator'sposition.Startengineand
movethrottlecontrolaheadto1/2throttle
position.Disengageparkingbrake.
A.Movethebypassleversintothepushing
themachineposition;refertoPushingthe
MachinebyHandsectioninOperation.
Withthebypassvalvesopenandtheengine
running,slowlymovethetraction-control
pedalinbothforwardandreverse(5or6
times).
B.Movethebypassleversintotheoperating
themachineposition.Withthebypassvalve
closedandtheenginerunning,slowlymove
thetraction-controlpedalinbothforwardand
reversedirections(5to6times).
C.Stoptheengineandchecktheoillevelinthe
expansionreservoir.Addthespeciedoil
asuntilitreachestheFullColdlineonthe
expansionreservoir.
2.Repeatstep1untilalltheairiscompletelypurged
fromthesystem.
Whenthetransaxleoperatesatnormalnoise
levelsandmovessmoothlyforwardandreverseat
normalspeeds,thenthetransaxleisconsidered
purged.
3.Checktheoillevelintheexpansionreservoirone
lasttime.Addthespeciedoiluntilitreaches
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