Toro 74855 - Drive System Maintenance; Checking the Tire Pressure; Hydraulic System Maintenance; Checking the Hydraulic Oil Level

DriveSystem
Maintenance
CheckingtheTirePressure
ServiceInterval:Every25hours—Checktirepressure.
Maintaintheairpressureinthefrontandreartiresas
specied.Uneventirepressurecancauseunevencut.Check
thepressureatthevalvestem(Figure45).Checkthetires
whentheyarecoldtogetthemostaccuratepressurereading.
Refertothemaximumpressuresuggestedbythetire
manufactureronthesidewallofthecasterwheeltires.
Inatethereardrivewheeltiresto89.6kPa(13psi).
Figure45
1.Valvestem
HydraulicSystem
Maintenance
HydraulicSystemOilSpecication
OilType:20w-50engineoil.
SystemCapacity:approximately4.495liter(152oz)witha
lterchange.
Important:Useoilspeciedorequivalent.Otheruids
couldcausesystemdamage.
CheckingtheHydraulicOil
Level
ServiceInterval:Every25hours
Checkexpansionreservoirandifnecessaryadd20W-50
engineoiltotheFULLCOLDline
G020323
2
3
1
Figure46
1.Expansionreservoir3.Engine
2.FullColdline
ChangingtheHydraulic
SystemFilterandOil
Thelterandoilarechangedatthesametime.Donotreuse
oil.Oncethenewlterisinstalledandoilisaddedanyairin
thesystemmustbepurged.
Thebleedingprocessisrepeateduntiltheoilremainsatthe
FULLCOLDlineinthereservoirafterpurging.Failureto
properlyperformthisprocedurecanresultinirreparable
damagetothetransaxledrivesystem.
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