Toro 30446 - Hydraulic System Maintenance; Changing the Hydraulic Fluid; Replacing the Hydraulic Filters

HydraulicSystem
Maintenance
ChangingtheHydraulicFluid
ServiceInterval:Aftertherst200hours
Every800hours
Changethehydraulicuidafterevery800operating
hours,innormalconditions.Iftheuidbecomes
contaminated,contactyourlocalTorodistributor
becausethesystemmustbeushed.Contaminateduid
looksmilkyorblackwhencomparedtocleanoil.
1.Turntheengineoffandraisethehood.
2.Loosenthedrainvalveonthebottomofthe
reservoirandletthehydraulicuidowintolarge
drainpan.Closethevalvewhenthehydraulicuid
stopsdraining.
3.Fillthereservoir(Figure74)withapproximately
8U.S.gallons(30l)ofhydraulicuid;referto
CheckingtheHydraulicFluid.
Important:Useonlythehydraulicuids
specied.Otheruidscouldcausesystem
damage.
Figure74
1.Hydraulicreservoir
4.Installthereservoircap.Starttheengineanduseall
ofthehydrauliccontrolstodistributehydraulicuid
throughoutthesystem.Alsocheckforleaks;then
stoptheengine.
5.Checktheuidlevelandaddenoughtoraiselevel
theleveltotheFullmarkonthedipstick.Donot
overll.
ReplacingtheHydraulicFilters
ServiceInterval:Aftertherst200hours
Every800hours
Changethe2hydraulicltersinitiallyaftertherst200
operatinghours.Thereafter,changetheltersafter
every800operatinghours,innormalconditions.
UseTororeplacementlters(PartNo.94-2621forthe
leftsideofthemachineand75-1310fortherightside
ofthemachine).
Important:Useofanyotherltermayvoidthe
warrantyonsomecomponents.
1.Positionthemachineonalevelsurface,lowerthe
cuttingunits,stoptheengine,engagetheparking
brakes,andremovetheignitionkey.
2.Cleantheareaaroundtheltermountingarea.Place
adrainpanunderthelterandremovethelter
(Figure75).
Figure75
3.Lubricatethenewltergasketandllthelterwith
hydraulicuid.
4.Ensurethattheltermountingareaisclean.Screw
thelteronuntilthegasketcontactsthemounting
plate;thentightenthelteranadditional1/2turn.
5.Oncethereservoirislled,starttheengineandlet
itrunatlowidleforapproximatelytwominutes.
Activatesteeringandraise/lowercuttingunits
severaltimestopurgeairfromthesystem.Stopthe
engineandcheckforleaks.
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