Toro Z Master 4000 Series - PTO Switch Replacement

ParkBrakeSwitchInstallation
1.Installtheparkbrakeswitchtotheparkbrakeswitchbracket.
2.Installtheparkbrakeswitchbracketintothechassisandconnect.
3.Installthe2(5/16inch)screwssecuringtheparkbrakeswitchbracketto
thechassis.
4.Installthe2(5/16inch)screwssecuringtheparkbrakeswitchbracketto
thechassis.
ParkBrakeSwitchTest
Theparkingbrakeswitchisasinglepoleplungertypeswitch(normallyopen)
withtwoterminals.Whentheplungerisdepressed(parkingbrakeON),the
circuitclosesandthereiscontinuitybetweentheterminals.Thisallowsbattery
voltagetoowtotherestofthesafetyinterlocksystem.
ParkingbrakeON,theswitchshouldhavecontinuity(closed).
ParkingbrakeOFF,theswitchshouldNOThavecontinuity(open).
PTOSwitchReplacement
PTOSwitchRemoval
1.ParkthemachineonalevelsurfaceanddisengagethePTO.Stopthe
engine,waitforallmovingpartstostopandremovethekey.Engagethe
parkingbrake.
2.Disconnectthebatterybyremovingthenegativecablerst,thenthepositive
cablefromthebattery.
3.Removethe4(1/4-20inch)torxscrewssecuringtheRHsidepodtotheRH
console.RemovetheRHsidepodfromtheRHconsole.
4.DisconnectthewiringharnessfromthePTOswitch.
5.Pinchtogetherthe2tabsonthePTOswitch.Pushingfromthebottomside
up,removethePTOswitchfromtheRHsidepod.
PTOSwitchInstallation
1.InstallthePTOswitchtotheRHsidepod.
2.ConnectthewiringharnesstothePTOswitch.
3.InstalltheRHsidepodtotheRHconsole.Installthe4(1/4-20inch)torx
screwssecuringtheRHsidepodtotheRHconsole.
4.Connectthebatterybyinstallingthepositivecablerst,thenthenegative
cabletothebattery.
PTOSwitchTest
1.RemoveanddisconnectthePTOswitch.
2.Withtheswitchinthe“ON”position
Electrical:ServiceandRepairs
Page8–8
4000SeriesZMASTER®ServiceManual
3442-427RevA