Toro 74142TE - Bleeding the Hydraulic System

BleedingtheHydraulicSystem
1.Raisetherearofmachineandsupportitwithjack
stands(orequivalentsupport)justhighenoughto
allowthedrivewheelstoturnfreely.
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Figure75
1.Jackingpoints
2.Starttheengine,movethethrottlecontrolaheadtothe
1/2throttleposition,anddisengagetheparkingbrake.
A.Movethebypassleversintothepushingthe
machineposition.Withthebypassvalves
openandtheenginerunning,slowlymovethe
motion-controlleversinbothforwardandreverse
(5or6times).
B.Movethebypassleversintotheoperatingthe
machineposition.
C.Withthebypassvalveclosedandtheengine
running,slowlymovethedirectionalcontrolin
bothforwardandreversedirections(5to6times).
D.Stoptheengineandchecktheoillevelinthe
expansionreservoir.Addthespeciedoilasuntil
itreachestheFULLCOLDlineontheexpansion
reservoir.
3.Repeatstep2untilalltheairiscompletelypurgedfrom
thesystem.
Note:Whenthetransaxleoperatesatnormalnoise
levels,movessmoothlyforward,andreversesatnormal
speeds,itispurged.
4.Checktheoillevelintheexpansionreservoiranal
time.AddthespeciedoilasuntilitreachestheFULL
COLDlineontheexpansionreservoirifnecessary.
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