Toro Greensmaster TriFlex 3400 - Fault 59: Line Contactor Closed

Fault59:LineContactorClosed
InfoCenterDisplay:
_____FAULT#59____
LINECONTACTOR
FAILEDCLOSED
FaultDescription
Thisfaultisreportedwhenthedifferencebetweenthebusvoltageandkeyswitchvoltageislessthan5volts
whenthecontactorshouldbeopen.Thisfaultindicatesafailureassociatedwiththe48Vcontactororthe
contactorcontrolcircuit.
CircuitDescription
Themaincontactorexistsinthe48Vsystemtoconnectthe48Vbatterypacktothestarter/generator(S/G)and
thecuttingreelmotors.TheS/Gmonitorsthevoltageonbothsidesofthecontactoranddetermineswhen
themaincontactorisclosed.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Testthemaincontactor.
1.GotoPreparingforTroubleshootingand/orTesting(page20)andfollowthestepslisted.
2.Locatethemaincontactorunderneaththeleft-handcoverassembly(Figure86andFigure87).
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