Toro 31598 - Interlock Switches and Towing; Checking the Interlock Switches; Pushing or Towing the Machine

procedures,wait2minutes,andrepeatthe
startingprocedure.
Whenthetemperatureisbelow20°F(-75°C),let
themachinewarmupforaminimumof10minutes.
5.Tostoptheengine,setthethrottleswitchtolow
idle,movethePTOswitchtotheOffposition,set
theparkingbrake,androtatetheignitionkeyto
Off.Removethekeyfromtheswitchtoprevent
accidentalstarting.
Important:Allowenginetoidlefor5minutes
beforeshuttingitoffafterafullloadoperation.
Failuretodosomayleadtoturbo-chargertrouble.
CheckingtheInterlock
Switches
CAUTION
Ifsafetyinterlockswitchesaredisconnectedor
damagedthemachinecouldoperateunexpectedly
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches
dailyandreplaceanydamagedswitchesbefore
operatingthemachine.
Themachinehasinterlockswitchesintheelectrical
system.Theseswitchesaredesignedtostoptheengine
whenoperatorgetsoffoftheseatwhenthetraction
pedalisdepressed.However,theoperatormaygetoff
oftheseatwhiletheengineisrunning,thetraction
pedalisinneutralandtheparkingbrakeengaged.
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.Thetractiondriveshouldnot
function.Ifthetractiondrivestillfunctionsthereis
amalfunctionintheinterlocksystemthatshouldbe
correctedbeforebeginningoperation.
PushingorTowingthe
Machine
Inanemergency,themachinecanbemovedforwardby
actuatingthebypassvalvesinthevariabledisplacement
hydraulicpumpandpushingortowingthemachine.
Donotpushortowthemachineformorethan1/4
mile(0.4km).
Important:Donotpushortowthemachine
fasterthan2MPH(3km/h)becauseinternal
transmissiondamagemayoccur.Thebypass
valvesmustbeopenwheneverthemachineis
pushedortowed.
1.Raisethehoodandlocatethebypassvalvesonthe
sidesofthepump(
Figure35).
Figure35
1.Bypassvalves(2)
2.Reversetractionpressure
testport(PortMA)
2.Toactuatethetowvalves,loosenthejamnuton
eachbypassvalvestem(Figure35).
Note:Usea4mmAllenwrenchanda13mmbox
wrenchtomaketheadjustments.
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