Service Manual

ToroElectronicControllers(TEC)(continued)
attachedtotheoperatorplatformunderthecontrollercover(Figure215and
Figure216).
Logicpowerisprovidedtothecontrollersaslongasthebatterycablesare
connectedtothebattery.Apairof2Ampfuses(fuseD−1forthefrontcontroller
andfuseD−2fortherearcontroller)providecircuitprotectionforthislogicpower
tothecontrollers.
ThefrontTECcontroller(master)monitorsthestatesofthefollowingcomponents
asinputs:keyswitch,tractionpedalpositionsensor,parkingbrakeswitch,
HI/LOWspeedswitch,servicebrakeswitches,seatswitch,enginespeedswitch,
hydraulictemperaturesender,turnsignalswitch(ifequipped)andhazardswitch
(ifequipped).
ThefrontTECcontrollercontrolselectricaloutputtotheengineECU(start
andrunfunctions),fandrivesolenoidcoils(directionandowsource),traction
(piston)pumpsolenoids(forwardandreverse)andtractionsolenoidcoil(HI/LOW
speed).Additionally,electricaloutputsforbrakelights,turnlightsandwarning
lightsonGroundsmaster4110−DmachinesareprovidedbythefrontTEC
controller.CircuitprotectionforfrontTECoutputsisprovidedbythree(3)7.5
Ampfuses(fuselocationsA−1,B−1andC−1).
TherearTECcontroller(slave)monitorsthestatesofthefollowingcomponents
asinputs:keyswitch,cuttingdeckliftswitches,PTOswitch,cruisecontrolswitch
anddeckpositionswitches.
TherearTECcontrollercontrolselectricaloutputtothePTOsolenoidcoils,
lift/lowersolenoidcoilsandfandrivesolenoidcoil(speed).Circuitprotectionfor
rearTECoutputsisprovidedbythree(3)7.5Ampfuses(fuselocationsA−2,
B−2andC−2).
TheInfoCenterdisplayshouldbeusedtocheckinputsandoutputsoftheTEC
controllers.InformationonusingtheInfoCenterisincludedintheInfoCenter
Displaysectionofthischapter.
ElectricalSystem:ComponentTesting
Page6–62
Groundsmaster
®
4100-D&4110-D
13203SLRevE