Toro 74549 - Hydraulic System Maintenance; Checking and Replacing Hydraulic Fluid

HydraulicSystem
Maintenance
ServicingtheHydraulic
System
HydraulicOilType:Toro
®
HYPR-OIL
™
500hydraulicoil
orMobil
®
115W-50syntheticmotoroil.
HydraulicSystemOilCapacity:67oz.(2.0l)
Important:Useoilspecied.Otheruidscouldcause
systemdamage.
CheckingtheHydraulicFluid
ServiceInterval:Aftertherst8hours
Every50hours
Note:Therearetwowaysofcheckingthehydraulicoil.
Oneiswhentheoiliswarmandoneiswhentheoiliscold.
Thebafeinsidethetankhastwolevelsdependingiftheoil
iswarmorcold.
1.Positionmachineonalevelsurface.
2.Disengagethepowertakeoff(PTO)andshutoffthe
engine.
3.Waitforallmovingpartstostopbeforeleavingthe
operatingpositionandthensettheparkingbrake.
4.Cleanareaaroundcapandllerneckofhydraulictank
(Figure76).
G012005
4 1 3
2
Figure76
1.Cap3.Colduidlevel-full
2.Bafe4.Hotuidlevel-full
5.Removecapfromllerneck.Lookinsidetocheckthe
uidlevelinthereservoir.(Figure76).
6.Adduidtothereservoiruntilitreachesthecoldlevel
ofthebafe.
7.Runthemachineatlowidlefor15minutestoallowany
airtopurgeoutofthesystemandwarmuid.Referto
StartingandStoppingtheEngine.
8.Rechecktheuidlevelwhiletheuidiswarm.If
required,adduidtothereservoiruntilitisbetween
thehotlevelandthecoldlevel.
Note:Theuidlevelshouldbebelowthehotlevelof
thebafe,whentheuidiswarm(
Figure76).
9.Installcaponllerneck.
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Ifhydraulicuidisinjectedintotheskinit
mustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththistype
ofinjury.Gangrenemayresultifthisis
notdone.
•Keepbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
•Makesureallhydraulicuidhosesand
linesareingoodconditionandallhydraulic
connectionsandttingsaretightbefore
applyingpressuretohydraulicsystem.
ReplacingtheHydraulicFluid
ServiceInterval:Every250hours—Changethehydraulic
lterandhydraulicoilwhenusingMobil
®
1oil.
Every500hours/Yearly(whichever
comesrst)—Changethehydrauliclter
andhydraulicoilwhenusingToro
®
HYPR-OIL
™
500hydraulicoil.
Note:Changethehydraulicuidmorefrequentlyinsevere
conditionsorinahotoperatingclimate.
WARNING
Hothydraulicuidcancausesevereburns.
Allowthehydraulicuidtocoolbeforeperforming
anymaintenancetothehydraulicsystem.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
3.Removehydraulicreservoircap.
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