Toro Greensmaster 3120 - Chapter 5: Electrical System

Chapter5
ElectricalSystem
TableofContents
GeneralInformation..............................................................................................................................5–2
ElectricalSchematicsandDiagrams..................................................................................................5–2
SpecialT ools.........................................................................................................................................5–3
Multimeter..........................................................................................................................................5–3
BatteryTerminalProtector..................................................................................................................5–3
BatteryHydrometer............................................................................................................................5–3
DielectricGel......................................................................................................................................5–4
Troubleshooting.....................................................................................................................................5–5
ElectricalSystemQuickChecks............................................................................................................5–8
TestingtheBattery(OpenCircuitT est)...............................................................................................5–8
TestingtheChargingSystem.............................................................................................................5–9
CheckingtheInterlockSystemOperation........................................................................................5–10
TestingtheElectricalComponents.......................................................................................................5–11
FusibleLinks....................................................................................................................................5–11
Fuses...............................................................................................................................................5–12
KeySwitch.......................................................................................................................................5–13
StarterSolenoid...............................................................................................................................5–14
HourMeter.......................................................................................................................................5–16
SeatSwitch......................................................................................................................................5–17
NeutralandMowSwitches...............................................................................................................5–18
ParkingBrakeSwitch.......................................................................................................................5–20
CuttingUnitRaiseandLowerJoystickSwitches..............................................................................5–21
BacklapSwitch(machineswithbacklap)..........................................................................................5–22
Relays..............................................................................................................................................5–23
DelayTimer(LowerCuttingUnits)...................................................................................................5–25
HydraulicSolenoidValveCoils.........................................................................................................5–26
Diodes..............................................................................................................................................5–28
ServiceandRepairs...........................................................................................................................5–30
CaringfortheBattery.......................................................................................................................5–30
StoringtheBattery...........................................................................................................................5–31
ServicingtheBattery........................................................................................................................5–31
Greensmaster3120
Page5–1
ElectricalSystem
17230SLRevC