Toro Groundmaster Series - Page 52

GeneralHydraulicSystemProblems(continued)
Problem
PossibleCauseCorrectiveAction
Thetractionsystempressureishigh
duetoloadordraggingbrakes.
Inspectbrakeoperationandserviceor
adjustifnecessary.
Thehydraulicuidlevelinthehydraulic
tankislow.
Adjustthehydraulicuidlevel.
Thesuctionlterorsuctionlineis
damaged,loose,orclogged.
Secure,cleanorreplacethesuction
lterorsuctionline.
Thehydraulicuidiscontaminatedor
theuidviscosityistoolight.
Replacethehydraulicuid.
Note:Refertothetractionunit
Operator’sManualforhydraulicuid
specications.
Thehydraulicuidcoolerisdamaged
orplugged.
Repairorreplacethehydraulicuid
cooler.
Theuidcoolerairowisobstructed.Verifycoolingfanoperationandremove
debrisfrominandaroundtheuid
cooler.
Thetractionpumpbypassvalveisopen
ordamaged.
Closeorreplacethetractionpump
bypassvalve.
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.
Thehydraulicsystemoperateshot
(exceeds95°C(203°F).
Note:Ifatractioncircuitcomponent
hasinternalwearordamage,it
ispossiblethattheothertraction
componentsarealsodamaged.
Troubleshooting:GeneralHydraulicSystemProblems
Page3–16
Groundsmaster
®
3200,3300and3310
19240SLRevA