Testing
1.Parkthemachineonalevelsurface,lowerthecuttingdecks,andshutoff
theengine.Removethekeyfromthekeyswitch.
2.Toaccesstheresistor,removethesunshadefromthetopoftheROPS
extension.
3.Disconnectthewireharnessconnectorsfromtheresistormoduleterminals.
4.Useamultimetertocheckthattheresistancevaluesoftheresistormodule
asbelow:
TestPoint1TestPoint2ExpectedReading
MotorPinPin1Lessthan9ohms
MotorPinPin2Lessthan6ohms
MotorPinPin3Lessthan3ohms
5.Replacetheresistormoduleifitfailsthetest.
6.Iftheresistormoduletestingiscorrectandacircuitproblemstillexists,check
thewireharness;refertoAppendixA(pageA–1)-FoldoutDrawings.
7.Afteryoucompletethetesting,connectthewireharnessconnectorstothe
resistormoduleterminals(Figure245)andinstallthesunshade.
Groundsmaster360
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ElectricalSystem:TestingtheElectricalComponents
16225SLRevC