GeneralInformation
TheOperator’sManualprovidesinformationregardingtheoperation,general
maintenance,andmaintenanceintervalsforyourmachine.Refertothe
Operator’sManualforadditionalinformationwhenservicingthemachine.
ElectricalSchematicsandWireHarnessDrawings/Diagrams
RefertotheElectricalSchematicsandWireHarnessDrawings/Diagramsin
AppendixA(pageA–1).
StandardControlModule(SCM)
g226810
Figure112
1.StandardControlModule(SCM)
2.Fuseblock
TheGroundsmaster3280-DandGroundsmaster3320machinesisequipped
withaStandardControlModule(SCM)tomonitorandcontroltheelectrical
componentsrequiredforsafeoperation.TheSCMislocatedunderthecontrol
panelcover(Figure112).
TheSCMmonitorstheinputsfromthekey,neutral,parkingbrake,PTO,seat,
hightemperaturewarningswitch,andhightemperatureshutdownswitch.
CurrentoutputtothePTO(electricclutch),enginestartermotor,andengine
runcomponents(fuelpump,dieselenginerunsolenoid,andgasolineengine
ignition)arecontrolledbasedontheinputsmonitoredbytheSCM.
UsetheSCMtochecktheoperationofthemachineswitchesbymonitoringthe
SCMLEDs.IfaSCMLEDdoesnotilluminate(e.g.,theinseatinputLEDdoes
notilluminatewhentheseatisoccupiedandthekeyswitchisintheONposition),
youmusttesttheswitch,fuses,andcircuitwiring.
TheSCMdoesnotconnecttoanexternalcomputerorhandhelddevice,cannot
bere-programmed,anddoesnotrecordintermittentfaultdata.
RefertotheTractionUnitOperator’sManualforadditionalStandardControl
Moduleinformation.
Groundsmaster
®
3280-D/3320
Page6–3
ElectricalSystem:GeneralInformation
05138SLRevB
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