Toro GrandStand 74589 - Bleeding the Hydraulic System

Figure84
1.Hydrauliclter
3.Adapter
2.Gasket
8.Cleanupanyspilleduid.
9.Checktheuidinthereservoir,andadduidtothe
tankuntilitreachesthecoldbafeofthetank.
Important:Usetheoilspeciedorequivalent.
Otheruidscouldcausesystemdamage.
10.Starttheengineandletitrunforabout2minutesto
purgeairfromthesystem.
11.Stoptheengineandcheckforleaks.
Note:Ifoneorbothwheelswillnotdrive,referto
BleedingtheHydraulicSystem(page55).
12.Checktheleveloftheuidandadduid,ifrequired.
Note:Donotoverll.
BleedingtheHydraulicSystem
Thetractionsystemisself-bleeding,however,itmaybe
necessarytobleedthesystemifuidischangedorafterwork
isperformedonthesystem.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
3.Raisetherearofthemachineontojackstandshigh
enoughtoraisethedrivewheelsofftheground.
4.Starttheengineandmovethethrottlecontroltothe
idleposition.
Note:Ifthedrivewheeldoesnotrotate,itispossible
toassistthepurgingofthesystembycarefullyrotating
thetireintheforwarddirection.
5.Checkthehydraulicuidlevelasitdrops,andadduid
asrequiredtomaintaintheproperlevel.
6.Repeatthisprocedurefortheoppositewheel.
7.Thoroughlycleantheareaaroundeachofthecharge
pumphousings.
CheckingtheHydraulicLines
ServiceInterval:Every100hours
Checkhydraulichosesandhosesforleaks,loosettings,
kinkedhoses,loosemountingsupports,wear,general
weathering,andchemicaldeterioration.Makeanynecessary
repairsbeforeoperating.
Note:Keepareasaroundthehydraulicsystemcleanfrom
grassanddebrisbuildup.
Note:Extendedoperatingtimeathightemperaturesinahot
climatemayleadtodeteriorationofhosesandseals.Inspect
morefrequentlyinahotclimate,andchangethehydraulic
oilandltermorefrequently.
55