Toro Greensmaster 3120 - Troubleshooting; General Hydraulic System Problems

Troubleshooting
Thefollowingchartcontainsinformationtotroubleshoothydrauliccircuit
problems.Therecanbemorethanonecauseforamachinemalfunction.
RefertoTestingtheHydraulicSystem(page4–35)forspecichydraulictest
procedures.
GeneralHydraulicSystemProblems
Problem
PossibleCauses
Thetting(s),hose(s),ortube(s)arelooseordamaged. Thehydraulicuidisleakingfromthesystem.
TheO-ring(s)orseal(s)aremissingordamaged.
Thehydraulic-uidlevelinthehydraulictankislow.
Thehydraulicsystemhasawrongtypeofuid.
Oneofthepumpsuctionlineshasanairleak.
Theincompatiblehydraulicuidsaremixedinthesystem.
Thehydraulicuidfoamsexcessivelycausinguidleakage
fromthehydraulictankbreather.
Note:Someaerationofthehydraulicuidonthismachine
isnormal.
Thereiswaterinthehydraulicsystem.
Thehydraulic-uidlevelinthehydraulictankislow.
Thesuctionlterislooseorclogged.
Thehydraulicuidiscontaminatedortheuidviscosityis
toolight.
Brakesareappliedorareincorrectlyadjusted.
Theuidcooler(ifequipped)isdamagedorplugged.The
uidcoolerairowisobstructed.
Workingloadofmachine(ie:highambienttemperatures,use
ofverticutter)mayrequireuseofuidcooler.
Thetractionpumpbypassvalveisopenordamaged.
Thechargepressureislow;refertoChargePressureRelief
ValvePressureT estintheTestingsectionofthischapter.
Thehydraulicsystemoperateshot.
Thetractionpump,wheelmotor(s)orreelmotor(s)isworn
ordamaged.
Note:Ifatractioncircuitcomponenthasinternalwearor
damage,itispossiblethattheothertractioncomponents
arealsodamaged.
HydraulicSystem:Troubleshooting
Page4–30
Greensmaster3120
17230SLRevC