Toro 74641 - Hydraulic System Maintenance; Checking the Hydraulic Oil Level; Changing the Hydraulic System Oil and Filters

HydraulicSystem
Maintenance
HydraulicSystemOilSpecication
OilType:ToroHYPR-OIL®500or20w-50motoroil.
SystemCapacity:approximately4.495liter(152oz)witha
lterchange.
CheckingtheHydraulicOil
Level
ServiceInterval:Every25hours
Checkexpansionreservoirandifnecessaryaddthespecied
oiltotheFULLCOLDline.
g017656
3
2
1
Figure43
1.Expansionreservoir3.Engine
2.FullColdline
ChangingtheHydraulic
SystemOilandFilters
ServiceInterval:Aftertherst50hours
Every400hours
Important:Thebleedingprocessisrepeateduntilthe
oilremainsattheFULLCOLDlineinthereservoirafter
purging. F ailur e to pr oper l y perf or m this pr ocedur e
can r esult in ir r epara ble dama ge to the transaxle dri v e
system.
Note:Thelterandoilarechangedatthesametime.Do
Notreuseoil.Oncethenewlterisinstalledandoilisadded
anyairinthesystemmustbepurged.
RemovingHydraulicSystemFilters
1.Stopengine,waitforallmovingpartstostop,and
allowenginetocool.Removethekeyandengagethe
parkingbrake.
2.Raisetherearofmachineupandsupportwithjack
stands(orequivalentsupport)justhighenoughto
allowdrivewheelstoturnfreely.
g017658
1
Figure44
1.Jackingpoints
3.Removethenutsholdingthetransaxlesupportinplace
(Figure45).
g017660
1 2 3
2 1
Figure45
1.Nut(5/16inch)(27to33
ft-lb)
3.Transaxlesupport
2.Nut(3/8inch)(15to19
ft-lb)
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