Fault75:HighTempWarning—M/G
InfoCenterDisplay:
_____ FAULT#75 _____
Warning
FaultDescription
Hightemperaturewarningforthemotor/generator.
Note:Whenthetemperatureofthemotor/generatorrisestotheover-temperaturerange,thecontrollerforthe
motorgeneratorreduceselectricalcurrentinrelationtothemotor/generatortemperature.Thiscouldresulttoa
48Vsystemundervoltagewarningorfault.Iftheabsoluteovertempvalueisreached,thecuttingreelmotorsare
disabledandthemotor/generatorstopsgeneratinguntilthefaultisnolongeractive.
CircuitDescription
Thereare3separatetemperaturesensorslocatedinsidethemotor/generator.
Note:Afaultytemperaturesensordoesnotcausethisfault.
ConditionsforSettingtheFault
ThisfaultisreportedwhenatemperaturemeasuredinsidetheM/Gexceedsthedesignlimit.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page21).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Makesurethatthehoodscreenisclean.
Cleantheairintakescreenonthebackofthemachine.
Step3:Checkthattheairintakeforthemotor/generatorisnot
blocked.
Ensurethatthemotor/generatorisdrawingairthroughtheairintakewhiletheengineisrunningbyfeelingthe
airmovementwithyourhandorwithapieceofpaper.
Step4:Cooloffthemachine.
1.Parkthemachineonalevelsurface.
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