Toro Groundsmaster 5910 Series - PTO Problems

PTOProblems
Problem
PossibleCause
Noneofthecuttingdeckswilloperate.
Anelectricalproblemexiststhatprevents
solenoidvalveoperationindeckmanifolds
(seeChapter6:ElectricalSystem(page6–1)).
Note:Cuttingdeckshavetobefullylowered
andoating,tractionspeedneedstobein
lowrange(mow),thePTOswitchneedstobe
engagedandtheenginecoolanttemperature
needstobebelow102ºC(215ºF)inorderfor
deckstooperate.
Gearpumpinternaldriveshaftfailure.
Bothgearpumpsectionsforthecuttingdeck
circuitsarewornordamaged.
Onecuttingdeckmotordoesnotrotate.Anelectricalproblemfortheaffecteddeck
exists(seeChapter6:ElectricalSystem(page
6–1)).
Systempressuretotheaffecteddeckmotor
istoolow.
Woodruffkeyonaffecteddeckmotoris
damaged(motorrotatesbutdeckbeltand
bladesdonotrotate).
Solenoidvalve(PRV)indeckmanifoldforthe
affecteddeckisfaulty.
Cartridgevalve(LC1,LC2,SQ)indeck
manifoldfortheaffecteddeckisdamagedor
sticking.
Thedeckmotorfortheaffecteddeckisworn
ordamaged.
Thegearpumpsectionfortheaffecteddeck
iswornordamaged.
Allcuttingdeckmotorsoperateslowly.EngineRPMislow.
Cuttingdeckproblemonalldecksexists(see
Chapter8:CuttingDecks(page8–1)).
Alldeckmotorsarewornordamaged.
Bothgearpumpsectionsforthecuttingdeck
circuitsarewornordamaged.
Cuttingdeckstopsunderload.Reliefvalve(PRV)indeckmanifoldforthe
affecteddeckisby−passing.
Cuttingdeckproblemexistsfortheaffected
deck(seeChapter8:CuttingDecks(page
8–1)).
Deckmotorfortheaffecteddeckiswornor
damaged.
Thegearpumpsectionfortheaffecteddeck
iswornordamaged.
Troubleshooting:Page3–6
Groundsmaster
®
5900&5910
16227SLRevB