Toro Greensmaster TriFlex 3400 User Manual

Fault12:48VContactorOpen
InfoCenterDisplay:
____FAULT#12____
48VCONTACTOR
OPEN
FaultDescription
Thisfaultisreportedwhenafailureassociatedwiththe48Vcontactor(orthecontactorcontrolcircuit)occurs.
Thestarter/generator(S/G)measuresthevoltageonbothsidesofthecontactor.Ifthekeyswitch(48V
logic)andbusvoltageofthestarter/generator(S/G)havemorethanan8Vdifferencewhenthecontactoris
engaged,thisfaultisreported.
Note:Ifyouareseeingafault12andafault22,troubleshootthefault22rst.
CircuitDescription
Themaincontactorconnectsthe48VbatterypacktotheS/Gandthecuttingreelmotors.Theprimary
controllerdetermineswhentotellthestarter/generator(S/G)toclosethemaincontactor.TheS/Gcontroller
checksforshortcircuits,andiftherearenone,engagesthecontactor.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Testthemaincontactor.
Themaincontactorislocatedunderneaththeleft-handcoverassembly(Figure13andFigure14).Refer
totheGreensmasterTriFlex3320/3420ServiceManual,Chapter6,ElectricReelContactorsection,and
testthemaincontactor.
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Toro Greensmaster TriFlex 3400 Specifications

General

Brand	Toro
Model	Greensmaster TriFlex 3400
Category	Lawn Mower
Language	English