Toro Greensmaster TriFlex 3400 - Fault 97: 48 V Bus Low Voltage - Starter;Generator

Fault97:48VBusLowVoltage–
Starter/Generator
Important:Forthisfault,theterm“keyswitch”referstothe48Vlogicpowercircuit,nottothe
ignitionswitch.
Note:Whenanyindividualcuttingreelmotorisshutoffduetoafault,theprimaryTECshutsofftheother4
cuttingreelmotors.
Note:Ifmultiplemachinefaultsarereportedwithinafewseconds,troubleshootingshouldbeginwiththe
rstcuttingreelmotortoreportafault.
InfoCenterDisplay:
_____FAULT#97____
GENERATOR-48
VPOWERBUS
UNDERV
FaultDescription
Thisfaultisreportedwhenthevoltagemeasuredinthe48Vsystemdropsbelow36volts.ThePTOandthe
generatorwillbedisabledwhilethisfaultisactive.
CircuitDescription
All3cuttingreelmotorssharethe48Vpowerwiththemotor/generator.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Testthe48Vbatteryvoltage.
1.Removeandtesteachofthebatteriesinthe48Varray.
2.FollowtheprocedureoutlinedinChapter6oftheGreensmasterTriFlex3320/3420ServiceManual.
Pass
Allofthe12Vbatteriesinthe48Vbatteryarraytestedgood.GotoStep3.
Fail
Oneorallofthe12Vbatteriesinthe48Vbatteryarrayfailedtesting.Replaceall4ofthe12V
batteries.
Note:Replaceallofthe12Vbatteriesatthesametime,evenifonlyoneofthemfails.
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