Toro 30403 Service Manual

Chapter6
ElectricalSystem
TableofContents
GeneralInformation..............................................................................................................................6–3
ElectricalSchematicsandWireHarnessDrawings/Diagrams............................................................6–3
StandardControlModule(SCM)........................................................................................................6–3
StandardControlModuleLogicChart................................................................................................6–5
SpecialT ools.........................................................................................................................................6–7
Multimeter..........................................................................................................................................6–7
TerminalProtector..............................................................................................................................6–7
BatteryHydrometer............................................................................................................................6–7
DielectricGel......................................................................................................................................6–8
Troubleshooting.....................................................................................................................................6–9
ElectricalSystemQuickChecks..........................................................................................................6–15
TestingtheBattery(OpenCircuitT est).............................................................................................6–15
TestingtheChargingSystem...........................................................................................................6–15
TestingtheGlowPlugSystem(Groundsmaster3280-D).................................................................6–16
CheckingtheOperationoftheInterlockSwitches............................................................................6–16
Adjustments.........................................................................................................................................6–17
TractionNeutralSensor(MachineSerialNumberabove316000000)..............................................6–17
ParkingBrakeSwitch.......................................................................................................................6–19
TestingtheElectricalComponents.......................................................................................................6–20
FusibleLinkHarness........................................................................................................................6–20
Fuses(MachineSerialNumberbelow400000000)..........................................................................6–22
Fuses(MachineSerialNumberabove400000000).........................................................................6–23
OperatorCabFuses(MachineswithOperatorCab)........................................................................6–25
KeySwitch.......................................................................................................................................6–27
IndicatorLights.................................................................................................................................6–29
HourMeter.......................................................................................................................................6–31
PTOSwitch......................................................................................................................................6–32
DeckLiftSwitch(MachineSerialNumbersabove311000000).........................................................6–34
SeatSwitch......................................................................................................................................6–36
WindshieldWasher/WiperSwitch(MachineswithOperatorCab)....................................................6–38
AccessoryPowerSwitch(MachineswithOperatorCab)..................................................................6–40
FanSpeedSwitch(MachineswithOperatorCab)............................................................................6–42
WorkLightSwitch(MachineswithOperatorCab–Optional).............................................................6–44
TractionNeutralSwitch(MachineSerialNumbersbelow316000000).............................................6–46
TractionNeutralSensor(MachineSerialNumberabove316000000)..............................................6–48
ParkingBrakeSwitch.......................................................................................................................6–50
HighTemperatureWarningSwitch...................................................................................................6–52
HighTemperatureShutdownSwitch................................................................................................6–55
EngineOilPressureSwitch..............................................................................................................6–58
Relays(Groundsmaster3280-D).....................................................................................................6–60
LiftControlValveSolenoidValveCoil(MachineSerialNumberabove311000000)..........................6–63
PTOElectricClutch..........................................................................................................................6–65
FuelStopSolenoid(Groundsmaster3280-D)..................................................................................6–66
GlowController(Groundsmaster3280-D)........................................................................................6–68
FuelPump(Groundsmaster3280-D)...............................................................................................6–70
FuelPump(Groundsmaster3320)...................................................................................................6–73
FuelPumpRelay(Groundsmaster3320).........................................................................................6–75
ServiceandRepairs...........................................................................................................................6–76
Groundsmaster
®
3280-D/3320Page6–1ElectricalSystem
05138SLRevB

Toro 30403 Specifications

General

Brand	Toro
Model	30403
Category	Lawn Mower
Language	English