Operator's Manual

HydraulicSystem
Maintenance
HydraulicSystemSafety
•Seekimmediatemedicalattentionifuidisinjected
intoskin.Injecteduidmustbesurgicallyremoved
withinafewhoursbyadoctor.
•Ensurethatallhydraulic-uidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthigh-pressurehydraulic
uid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
ServicingtheHydraulic
System
HydraulicFluidSpecications
HydraulicFluidType:Toro
®
HYPR-OIL
™
500
hydraulicuid(preferred)orMobil115W-50oil.
Important:Usetheuidspecied.Otheruids
couldcausesystemdamage.
HydraulicSystemCapacity(withltersremoved):
4.45L(150oz)
CheckingtheHydraulicFluidLevel
ServiceInterval:Beforeeachuseordaily
1.Allowthehydraulicuidtocooldown.Checkthe
oillevelwhentheuidiscold.
2.Checkexpansionreservoirandifnecessary
addToro
®
HYPR-OIL
™
500hydraulicuidtothe
FULLCOLDline.
g037051
Figure106
1.Engine2.Expansiontank
ChangingtheHydraulic-System
FiltersandFluid
ServiceInterval:Aftertherst75hours—Changethe
hydraulic-systemltersanduid.
Every500hours—Aftertheinitial
change—changethehydraulic-system
ltersanduidwhenusingT oro
®
HYPR-OIL
™
500uid(changeitmoreoftenundersevere
conditions).
Every250hours—Aftertheinitial
change—changethehydraulic-system
ltersanduidwhenusingMobil115W50uid
(changeitmoreoftenundersevereconditions).
Changetheltersanduidatthesametime.Do
notusetheuidagain.Purgeanyairinthesystem
afteryouinstallthenewltersandadduid.Referto
BleedingtheHydraulicSystem(page74).
Repeatthebleedingprocessuntiltheuidremains
attheFULLCOLDlineinthereservoirafterpurging.
Failuretoproperlyperformthisprocedurecan
resultinirreparabledamagetothetransaxledrive
system.
RemovingtheHydraulic-SystemFilters
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Allowtheenginetocool.
72