Toro GrandStand 74574 - Hydraulic System Maintenance; Servicing the Hydraulic System

HydraulicSystem
Maintenance
ServicingtheHydraulic
System
HydraulicOilType:Toro
®
HYPR-OIL
™
500hydraulicoil
orMobil
®
115W-50syntheticmotoroil.
HydraulicSystemOilCapacity:2L(67oz)
Important:Useoilspecied.Otheruidscouldcause
systemdamage.
CheckingtheHydraulicFluid
ServiceInterval:Aftertherst8hours
Every50hours
Note:Thereare2waystocheckthehydraulicoil;whenthe
oiliswarm,orwhentheoiliscold.Thebafeinsidethetank
has2levelsdependingiftheoiliswarmorcold.
1.Positionthemachineonalevelsurface.
2.Disengagethepowertakeoff(PTO)andshutoffthe
engine.
3.Waitforallmovingpartstostopbeforeleavingthe
operatingpositionandthensettheparkingbrake.
4.Cleantheareaaroundthecapandthellerneckofthe
hydraulictank(Figure75).
G012005
4 1 3
2
Figure75
1.Cap3.Colduidlevel—full
2.Bafe4.Hotuidlevel—full
5.Removethecapfromthellerneck(Figure75).
Note:Lookinsidetochecktheuidlevelinthe
reservoir.
6.Adduidtothereservoiruntilitreachesthecoldlevel
ofthebafe.
7.Runthemachineatlowidlefor15minutestoallow
anyairtopurgeoutofthesystemandwarmtheuid;
refertoStartingandStoppingtheEngine(page18).
8.Checktheuidlevelwhiletheuidiswarm.
Note:Ifrequired,adduidtothereservoiruntilitis
betweenthehotlevelandthecoldlevel.
Note:Theuidlevelshouldbebelowthehotlevelof
thebafewhentheuidiswarm(Figure75).
9.Installthecaponthellerneck.
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Ifhydraulicuidisinjectedintotheskin,
itmustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththistype
ofinjury.Gangrenemayresultifthisis
notdone.
•Keepyourbodyandhandsawayfrom
pinholeleaksornozzlesthateject
high-pressurehydraulicuid.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
•Makesureallhydraulic-uidhosesarein
goodcondition,andallthatthehydraulic
connectionsandttingsaretightbefore
applyingpressuretohydraulicsystem.
ReplacingtheHydraulicFluid
ServiceInterval:Every250hours—Changethehydraulic
lterandhydraulicoilwhenusingMobil
®
1oil.
Every500hours/Yearly(whichevercomes
rst)—Changethehydrauliclterandhydraulicoil
whenusingToro
®
HYPR-OIL
™
500hydraulicoil.
Note:Changethehydraulicuidmorefrequentlyinsevere
conditionsorinahotoperatingclimate.
WARNING
Hothydraulicuidcancausesevereburns.
Allowthehydraulicuidtocoolbeforeperforming
anymaintenancetothehydraulicsystem.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
3.Removehydraulic-reservoircap.
4.Locatethefronthydraulichoseunderthehydraulic
tank,andplaceadrainpanunderthetank(Figure76).
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