TestingthePTOSwitch(continued)
5.EnsurethatthekeyswitchisintheOFFposition.
6.RemovethecontrolpaneltogetaccesstothePTOswitch;referto
DisassemblingtheControlConsole(page6–54).
7.DisconnectthewireharnesselectricalconnectorfromthePTOswitch.
8.ThePTOswitchterminalsareidentiedinFigure206andthecircuitryofthe
switchisshownintheCircuitLogicTable(page5–62).Withtheuseofa
multimeter(ohmssetting),testtheswitchfunctionstodetermineifcontinuity
existsbetweenthevariousterminalsforeachswitchposition.Checkthe
continuitybetweentheswitchterminals.
CircuitLogicTable
SwitchPositionClosedCircuitsOpenCircuits
OFF(DOWN)COMB+NCB
COMC+NCC
COMB+NOB
COMC+NOC
ON(UP)COMB+NOB
COMC+NOC
COMB+NCB
COMC+NCC
9.ReplacethePTOswitchiftestingdeterminesthattheswitchisdamaged.
10.IfthePTOswitchtestingiscorrectandacircuitproblemstillexists,check
thewireharness;refertotheElectricalSchematicsandWireHarness
Drawings/DiagramsinAppendixA(pageA–1)–FoldoutDrawings.
11.Afteryoucompletethetesting,connectthewireharnessconnectortothe
PTOswitch.
12.Securethecontrolpaneltothemachinewiththeremovedfasteners;refer
toAssemblingtheControlConsole(page6–54).
ElectricalSystem:TestingtheElectricalComponents
Page5–62
Groundsmaster360
16225SLRevC