Toro 74549 - Hydraulic System Bleeding and Lines; Bleeding the Hydraulic System; Checking Hydraulic Lines

Figure79
1.Hydrauliclter
3.Adapter
2.Gasket
7.Cleanupanyspilleduid.
8.Checktheuidinthereservoir,adduidtothetank
untilitreachesthecoldbafeofthetank.
Important:Useoilspeciedorequivalent.Other
uidscouldcausesystemdamage.
9.Startengineandletrunforabouttwominutestopurge
airfromthesystem.Stoptheengineandcheckfor
leaks.Ifoneorbothwheelswillnotdrive,referto
BleedingHydraulicSystem.
10.Rechecklevelandadduid,ifrequired.Donot
overll.
BleedingtheHydraulicSystem
Thetractionsystemisselfbleeding,however,itmaybe
necessarytobleedthesystemifuidischangedorafterwork
isperformedonthesystem.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
3.Raisetherearofthemachineupontojackstandshigh
enoughtoraisethedrivewheelsofftheground.
4.Starttheengineandmovethethrottlecontroltoidle
position.
Ifthedrivewheeldoesnotrotate,itispossibletoassist
thepurgingofthesystembycarefullyrotatingthetire
intheforwarddirection.
5.Checkthehydraulicuidlevelasitdropsadduidas
requiredtomaintaintheproperlevel.
6.Repeatthisprocedurefortheoppositewheel.
7.Thoroughlycleantheareaaroundeachofthecharge
pumphousings.
CheckingtheHydraulicLines
ServiceInterval:Every100hours
Checkhydraulichosesandhosesforleaks,loosettings,
kinkedhoses,loosemountingsupports,wear,weather
andchemicaldeterioration.Makenecessaryrepairsbefore
operating.
Note:Keepareasaroundhydraulicsystemcleanfromgrass
anddebrisbuildup.
Note:Extendedoperatingtimeathightemperaturesinahot
climatemayleadtodeteriorationofhosesandseals.Inspect
morefrequentlyinahotclimateandchangehydraulicoiland
ltermorefrequently.
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Ifhydraulicuidisinjectedintotheskinit
mustbesurgicallyremovedwithinafewhours
byadoctorfamiliarwiththistypeofinjury.
Gangrenemayresultifthisisnotdone.
•Keepbodyandhandsawayfrompinholeleaks
ornozzlesthatejecthighpressurehydraulic
uid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
•Makesureallhydraulicuidhosesandhosesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
hydraulicsystem.
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