Toro 74882 - Hydraulic System Maintenance; Checking the Hydraulic Oil Level; Changing the Hydraulic System Filter and Oil

HydraulicSystem
Maintenance
OilType:20w-50engineoil.
SystemCapacity:approximately4.495liter(152oz)witha
lterchange.
Important:Useoilspeciedorequivalent.Otheruids
couldcausesystemdamage.
CheckingtheHydraulicOil
Level
ServiceInterval:Every25hours
Checkexpansionreservoirandifnecessaryadd20W-50
engineoiltotheFULLCOLDline
G010253
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2
3
Figure46
1.Expansionreservoir3.Engine
2.FullColdline
ChangingtheHydraulic
SystemFilterandOil
Thelterandoilarechangedatthesametime.Donotreuse
oil.Oncethenewlterisinstalledandoilisaddedanyairin
thesystemmustbepurged.
Thebleedingprocessisrepeateduntiltheoilremainsatthe
FULLCOLDlineinthereservoirafterpurging.Failureto
properlyperformthisprocedurecanresultinirreparable
damagetothetransaxledrivesystem.
RemovingHydraulicSystemFilters
1.Stopengine,waitforallmovingpartstostop,and
allowenginetocool.
2.Removethekeyandengagetheparkingbrake.
3.Locatethelterandguardsoneachtransaxledrive
system(Figure47).
4.Removethreescrewssecuringthelterguardand
guard.
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2
3
4
5
Figure47
Rightsideshown
1.Transaxledrive
4.Screws
2.Oillter
5.Ventplug
3.Filterguard
5.Carefullycleanareaaroundlters.
Note:Itisimportantthatnodirtorcontamination
enterhydraulicsystem.
6.Placeacontainerbelowtheltertocatchtheoilthat
drainswhenthelterandventplugsareremoved.
7.Locateandremovetheventplugoneachtransmission
8.Unscrewtheltertoremoveandallowoiltodrain
fromdrivesystem.
Repeatthisprocedureforbothlters.
InstallingtheHydraulicSystemFilters
ServiceInterval:Aftertherst50hours
Every400hours
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