Toro Groundsmaster 4300-D - Key Switch

KeySwitch
g190808
Figure161
1.Keyswitch
2.Controlarm
g190999
Figure162
Thekeyswitchislocatedonthecontrolarmandhas3positions:OFF,RUN,
andSTART(Figure162).
TheToroElectronicController(TEC)monitorstheoperationofthekeyswitch.
TestingtheKeySwitch
1.Parkthemachineonalevelsurface,lowerthecuttingdecks,settheparking
brake,andshutofftheengine.Removethekeyfromthekeyswitch.
2.Beforeyoudisconnectthekeyswitchfortesting,ensurethatyoutestthe
switchanditscircuitwiringasaTECelectricalinputwiththeInfoCenter
display;refertoUsingtheInfoCenterDisplayforTroubleshooting(page
5–26).
3.Iftheinputtestingveriesthatthekeyswitchandcircuitwiringarefunctioning
correctly,nofurtherkeyswitchtestingisnecessary.
4.Iftheinputtestingdeterminesthatthekeyswitchandcircuitwiringarenot
functioningcorrectly,proceedwiththefollowingkeyswitchtestingprocedure.
5.Removetherightcontrolarmcovertogetaccesstothekeyswitch;referto
DisassemblingtheControlArm(page6–24).
6.EnsurethatthekeyswitchisintheOFFposition.Disconnectthewireharness
connectorfromthekeyswitch.
7.ThekeyswitchterminalsareidentiedinFigure162andthecircuitryofthe
switchisshownintheCircuitLogicTable(page5–52).Withtheuseofa
multimeter(ohmssetting),testtheswitchfunctionstodetermineifcontinuity
existsbetweenthevariousterminalsforeachswitchposition.Checkthe
continuitybetweentheswitchterminals.
Groundsmaster
®
4300-D
Page5–51
ElectricalSystem:TestingtheElectricalComponents
16226SLRevC