Toro Groundmaster Series - Page 54

TractionSystemProblems(continued)
Problem
PossibleCauseCorrectiveAction
Thehydraulicuidlevelinthehydraulic
tankislow(otherhydrauliccircuit
performanceisaffectedaswell).
Adjustthehydraulicuidlevel.
Thetractionpumpbypassvalveisopen
ordamaged.
Closeorreplacethetractionpump
bypassvalve.
Thetractionpumpchargereliefvalveis
leakingordamaged.
Cleanorrepairthechargereliefvalve.
Thetractionpumpreliefvalvesare
leakingordamaged.
Cleanorrepairthepiston(traction)
pumpreliefvalves.
Thechargepressureislow(steering
andliftcircuitperformanceisalso
affected).
Verifychargepressure;refertoT esting
theTractionCircuit–ChargePressure
intheHydraulicSystemchapterofthis
manual.
Thetractionpumpiswornordamaged.
Verifytractionpumpoperation;refer
toTestingtheTractionCircuit–Piston
(traction)Pump(P1)FlowandRelief
PressureT estintheHydraulicSystem
chapterofthismanual.
Thewheelmotor(s)iswornor
damaged.
Verifywheelmotoroperation;referto
TestingtheTractionCircuit–Wheel
MotorEfciencyintheHydraulic
Systemchapterofthismanual.
Notractionexistsineitherdirection.
Note:Ifatractioncircuitcomponent
hasinternalwearordamage,it
ispossiblethattheothertraction
componentsarealsodamaged.
Troubleshooting:TractionSystemProblems
Page3–18
Groundsmaster
®
3200,3300and3310
19240SLRevA