Toro 74538 - Hydraulic System Maintenance; Servicing the Hydraulic System

HydraulicSystem
Maintenance
ServicingtheHydraulic
System
HydraulicOilType:Toro
®
HYPR-OIL
™
500
hydraulicoilorMobil
®
115W-50syntheticmotoroil.
HydraulicSystemOilCapacity:67oz.(2.0l)
Important:Useoilspecied.Otheruidscould
causesystemdamage.
CheckingtheHydraulicFluid
ServiceInterval:Aftertherst8hours
Every50hours
Note:Therearetwowaysofcheckingthehydraulicoil.
Oneiswhentheoiliswarmandoneiswhentheoilis
cold.Thebafeinsidethetankhastwolevelsdepending
iftheoiliswarmorcold.
1.Positionmachineonalevelsurface.
2.Disengagethepowertakeoff(PTO)andshutoff
theengine.
3.Waitforallmovingpartstostopbeforeleavingthe
operatingpositionandthensettheparkingbrake.
4.Cleanareaaroundcapandllerneckofhydraulic
tank(Figure74).
G012005
4 1 3
2
Figure74
1.Cap3.Colduidlevel-full
2.Bafe4.Hotuidlevel-full
5.Removecapfromllerneck.Lookinsidetocheck
theuidlevelinthereservoir.(Figure74).
6.Adduidtothereservoiruntilitreachesthecold
levelofthebafe.
7.Runthemachineatlowidlefor15minutestoallow
anyairtopurgeoutofthesystemandwarmuid.
RefertoStartingandStoppingtheEngine.
8.Rechecktheuidlevelwhiletheuidiswarm.If
required,adduidtothereservoiruntilitisbetween
thehotlevelandthecoldlevel.
Note:Theuidlevelshouldbebelowthehotlevel
ofthebafe,whentheuidiswarm(
Figure74).
9.Installcaponllerneck.
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Ifhydraulicuidisinjectedintotheskin
itmustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththistypeof
injury.Gangrenemayresultifthisisnot
done.
•Keepbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
•Makesureallhydraulicuidhosesand
linesareingoodconditionandallhydraulic
connectionsandttingsaretightbefore
applyingpressuretohydraulicsystem.
ReplacingtheHydraulicFluid
ServiceInterval:Every250hours—Changethe
hydrauliclterandhydraulicoilwhen
usingMobil
®
1oil.
Every500hours/Yearly(whichever
comesrst)—Changethehydraulic
lterandhydraulicoilwhenusing
Toro
®
HYPR-OIL
™
500hydraulic
oil.
Note:Changethehydraulicuidmorefrequentlyin
severeconditionsorinahotoperatingclimate.
WARNING
Hothydraulicuidcancausesevereburns.
Allowthehydraulicuidtocoolbeforeperforming
anymaintenancetothehydraulicsystem.
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