Operator's Manual

Checktheelectricalconnections,inputfuses,and
diagnosticlightbulbtodeterminethemalfunction.
Ensurethattheloop-backconnectorissecuredto
thewireharnessconnector.
Understandingthe
DiagnosticACEDisplay
Themachineisequippedwithanelectroniccontroller
whichcontrolsmostmachinefunctions.Thecontroller
determineswhatfunctionisrequiredforvariousinput
switches(i.e.seatswitch,keyswitch,etc.)andturns
ontheoutputstoactuatesolenoidsorrelaysforthe
requestedmachinefunction.
Fortheelectroniccontrollertocontrolthemachineas
desired,eachoftheinputswitches,outputsolenoids,
andrelaysmustbeconnectedandfunctioning
properly.
UsetheDiagnosticACEdisplaytohelpverifyand
correctelectricalfunctionsofthemachine.
CheckingtheInterlock
Switches
ServiceInterval:Beforeeachuseordaily
Thepurposeoftheinterlockswitchesistopreventthe
enginefromcrankingorstartingunlessthetraction
pedalisintheNEUTRALposition,theEnable/Disable
switchisintheDISABLEposition,andtheLower
Mow/RaisecontrolisintheNEUTRALposition.In
addition,theengineshouldshutoffwhenyoupress
thetractionpedalwiththeoperatorofftheseatorif
theparkingbrakeisleftengaged.
CAUTION
Ifsafetyinterlockswitchesaredisconnected
ordamagedthemachinecouldoperate
unexpectedly,causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlock
switchesdailyandreplaceanydamaged
switchesbeforeoperatingthemachine.
VerifyingtheInterlockSwitch
Function
1.Parkthemachineonalevelsurface,lowerthe
cuttingunits,engagetheparkingbrake,and
shutofftheengine.
2.Removethecoverfromthecontrolpanel.
3.Locatethewireharnessandloop-back
connector(Figure41).
g020260
Figure41
1.Loop-backconnector
4.Carefullyunplugtheloop-backconnectorfrom
theharnessconnector.
5.ConnecttheDiagnosticACEdisplayconnector
totheharnessconnector(Figure42).
Note:Makesurethatthecorrectoverlaydecal
ispositionedontheDiagnosticACEdisplay.
g004140
Figure42
1.DiagnosticACE
6.TurnthekeyswitchtotheONposition,butdo
notstartthemachine.
Note:Theredtextontheoverlaydecalrefers
toinputswitchesandthegreentextrefersto
outputs.
7.The“inputsdisplayed”LED,onthelowerright
columnoftheDiagnosticACE,shouldbe
illuminated.Ifthe“outputsdisplayed”LED
isilluminated,pressthetogglebuttononthe
DiagnosticACEtochangetheLEDto“inputs
displayed.”
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