Toro Groundsmaster 4500-D Series - PTO Switch

PTOSwitch
g309580
Figure190
1.Consolearm2.PTOswitch
ThetwopositionPTOswitchislocatedontheconsolearm(Figure190).The
PTOswitchispulleduptoengagethePTOandpushedintodisengagethePTO.
Note:ToengagethePTO,theseathastobeoccupied,tractionspeedhastobe
inlowrange(mow)andthecuttingdeckshavetobefullylowered.
Testing
Note:BeforedisconnectingthePTOswitchfortesting,theswitchandits
circuitwiringshouldbetestedasaTECelectricalinputusingtheInfoCenter
Display(seeInfoCenterDisplay(page6–8)).Ifinputtestingveriesthatthe
PTOswitchandcircuitwiringarefunctioningcorrectly,nofurtherPTOswitch
testingisnecessary.If,however,inputtestingdeterminesthatthePTOswitch
andcircuitwiringarenotfunctioningcorrectly,proceedwiththefollowingPTO
switchtestingprocedure.
1.Parkmachineonalevelsurface,lowercuttingdecks,engageparkingbrake
andstopengine.Removekeyfromignitionswitch.
2.RemoveconsolearmcoverstogainaccesstoPTOswitch(seeConsole
Arm(page8–10)).
3.DisconnectwireharnesselectricalconnectorfromthePTOswitch.
2
3
1
6
4
5
g275999
Figure191
1.COMBterminal4.COMCterminal
2.NOBterminal5.NOCterminal
3.NCBterminal6.NCCterminal
4.TheswitchterminalsaremarkedasshowninFigure191.Thecircuitlogic
ofthePTOswitchisshowninthechartbelow.Withtheuseofamultimeter
(ohmssetting),theswitchfunctionscanbetestedtodeterminewhether
continuityexistsbetweenthevariousterminalsforeachswitchposition.
Groundsmaster
®
4500-D/4700-D
Page6–31
ElectricalSystem:ComponentTesting
19245SLRevA