Toro Groundsmaster 4500-D Series - Cutting Deck Operating Problems

CuttingDeckOperatingProblems
Note:CheckInfoCenterDisplayforpossibleoperatoradvisoriesorfaults
wheneverdiagnosingmachineelectricalproblems.
Note:Toengagethemowcircuit,theoperatormustbeintheoperatorseat,the
tractionspeedmustbeintheLOWspeed(mow)position,thePTOswitchmust
beONandthecuttingdeck(s)mustbefullyloweredandinoat.
Problem
PossibleCause
Thecuttingdeckpositionswitchorcircuit
wiringisfaulty.
Wireharnessconnectionsareincorrectly
connectedtohydraulicsolenoidvalvecoilson
hydraulicdeckcontrolmanifold.
Ahydraulicprobleminthemowcircuitexists
(seeGeneralHydraulicSystemProblems
(page3–3)).
Cuttingdecksrun,butshouldnot,whenraised.
DecksshutoffwithPTOswitch.
TheTECcontrollerisfaulty.
Thedeckpositionswitchorcircuitwiringand
PTOswitchorcircuitwiringarefaulty.
Ahydraulicprobleminthemowcircuitexists
(seeGeneralHydraulicSystemProblems
(page3–3)).
Cuttingdecksrun,butshouldnot,whenraised.
DecksdonotshutoffwiththePTOswitch.
TheTECcontrollerisfaulty.
ThePTOswitchorcircuitwiringisfaulty. Cuttingdecksrun,butshouldnot,when
loweredwithPTOswitchintheOFF
(disengage)position.
TheTECcontrollerisfaulty.
Theoperatorisliftingofftheseatswitch.
Thecuttingdecksarenotfullylowered.
Cuttingdeck(s)donotoperateandOperator
AdvisoryisdisplayedonInfoCenter(see
OperatorAdvisories(page3–10)).
TractioncircuitisnotinLOWspeed(mow)
mode.
Cuttingdeck(s)donotoperateandno
OperatorAdvisoryisdisplayedonInfoCenter.
Hightemperatureofenginecoolantor
hydraulicoilhasdisabledthecuttingdecks.
FuseisfaultypreventingPTOmanifold
solenoidsfrombeingenergized(fuseB−1or
B−2).
Theseatswitchorcircuitwiringisfaulty.
ThePTOswitchorcircuitwiringisfaulty.
Thedeckpositionswitchorcircuitwiringis
faulty.
TheAuto/LOWmodeswitchorcircuitwiring
isfaulty.
Hydraulicvalvesolenoid(s)orcircuitwiringto
theaffecteddeck(s)isfaulty.
Ahydraulicprobleminthemowcircuitexists
(seeGeneralHydraulicSystemProblems
(page3–3)).
TheTECcontrollerisfaulty.
Groundsmaster
®
4500-D/4700-D
Page3–29Troubleshooting:
19245SLRevA