Toro Groundsmaster 5910 Series - Page 333

Testing(continued)
1 2
3
4
5 6
g288506
Figure211
1.COMBterminal4.COMCterminal
2.NOBterminal5.NOCterminal
3.NCBterminal6.NCCterminal
5.TheswitchterminalsaremarkedasshowninFigure211.Thecircuitlogic
ofthePTOswitchisshowninbelowtable.Withtheuseofamultimeter
(ohmssetting),theswitchfunctionsmaybetestedtodeterminewhether
continuityexistsbetweenthevariousterminalsforeachswitchposition.
Verifycontinuitybetweenswitchterminals.
SWITCHPOSITIONCLOSEDCIRCUITSOPENCIRCUITS
OFF(DOWN)COMB+NCB
COMC+NCC
COMB+NOB
COMC+NOC
ON(UP)COMB+NOB
COMC+NOC
COMB+NCB
COMC+NCC
6.Replaceswitchiftestingdeterminesthatitisfaulty.
7.Iftheswitchtestscorrectlyandacircuitproblemstillexists,checkthewire
harnesses(seeAppendixA(pageA–1)).
8.Aftertestingiscomplete,connectmachinewireharnessconnectortoswitch.
9.Assembleconsolearm(seeConsoleArm(page7–35)).
10.Turnthebattery−disconnectswitchtotheONpositionbeforereturningthe
machinetoservice.
Groundsmaster
®
5900&5910
Page6–71
ElectricalSystem:ComponentTesting
16227SLRevB