Toro 30868 - Checking the Interlock Switches

1.Removeyourfootfromthetractionpedaland
ensurethatitisinneutral.Ensurethattheparking
brakeisset.
2.Movethethrottlecontroltothelowidleposition.
3.TurntheignitionkeytotheRunposition.Theglow
indicatorwilllight.
4.Whentheglowindicatordims,turntheignitionkey
totheStartposition.Releasethekeyimmediately
whentheenginestartsandallowittoreturnto
theRunposition.Movethethrottlecontroltothe
desiredposition.
Important:Donotrunthestartermotor
morethan15secondsatatimeorpremature
starterfailuremayresult.Iftheenginefailsto
startafter15seconds,turnthekeytotheOff
position,recheckthecontrolsandprocedures,
wait15additionalseconds,andrepeatthe
startingprocedure.
Whenthetemperatureislessthan20°F(-7°C),the
startermotorcanberunfor30secondsonthen60
secondsofffor2attempts.
5.Whentheengineisstartedforthersttime,or
afteranoverhauloftheengine,transmission,or
axle,operatethemachineinforwardandreversefor
oneortwominutes.Alsooperatetheliftleverand
PTOlevertoensureproperoperationofallparts.
Turnthesteeringwheeltotheleftandrightto
checksteeringresponse.Thenshuttheengineoff
andcheckforoilleaks,looseparts,andanyother
noticeabledifculties.
Shuttheengineoffandwaitforallmoving
partstostopbeforecheckingforoilleaks,loose
parts,andothermalfunctions.
StoppingtheEngine
Important:Allowenginetoidlefor5minutes
beforeshuttingitoffafterafullloadoperation.
Thisallowstheturbochargertocooldownbefore
shuttingtheengineoff.Failuretodosomaylead
toturbo-chargertrouble.
Note:Lowercuttingunitstothegroundwhenever
machineisparked.Thisrelievesthehydraulicloadfrom
thesystem,preventswearonsystempartsandalso
preventsaccidentalloweringofthecuttingunits.
1.MovethethrottlecontrolbackwardtotheSlow
position.
2.MovethePTOlevertotheOffposition.
3.Settheparkingbrake.
4.RotatetheignitionkeytoOff.
5.Removethekeyfromtheswitchtoprevent
accidentalstarting.
CheckingtheInterlock
Switches
ServiceInterval:Beforeeachuseordaily
Ifsafetyinterlockswitchesaredisconnected
ordamagedthemachinecouldoperate
unexpectedlycausingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlock
switchesdailyandreplaceanydamaged
switchesbeforeoperatingthemachine.
Themachinehasinterlockswitchesintheelectrical
system.Theseswitchesaredesignedtostoptheengine
whenoperatorgetsoffoftheseatwhenthetraction
pedalisdepressed.However,theoperatormaygetoff
oftheseatwhiletheengineisrunningandthetraction
pedalisinneutral.Althoughtheenginewillcontinue
torunifthePTOleverisdisengagedandthetraction
pedalisreleased,itisstronglyrecommendedthatthe
enginebestoppedbeforerisingfromtheseat.
Tochecktheoperationoftheinterlockswitches,
performthefollowingprocedure:
1.Drivethemachineslowlytoalarge,relativelyopen
area.Lowerthecuttingunit,stoptheengine,and
applytheparkingbrake.
2.Sitontheseatanddepressthetractionpedal.Try
tostarttheengine.Theengineshouldnotcrank.
Iftheenginecranks,thereisamalfunctioninthe
interlocksystemthatshouldbecorrectedbefore
beginningoperation.
3.Sitontheseatandstarttheengine.Risefromthe
seatandmovethePTOlevertoOn.ThePTO
shouldnotengage.IfthePTOengages,thereisa
malfunctionintheinterlocksystemthatshouldbe
correctedbeforebeginningoperation.
4.Sitontheseat,engagetheparkingbrakeandstart
theengine.Movethetractionpedaloutofthe
neutralposition.Theengineshouldkill.Ifthe
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