Toro 74923TE - The Safety Interlock System

Important:Makesurethatthefuelshutoffvalveis
closedbeforetransportingorstoringthemachine,as
fuelleakagemayoccur.Settheparkingbrakebefore
transporting.Makesuretoremovethekeyasthefuel
pumpmayrunandcausethebatterytolosecharge.
TheSafetyInterlockSystem
CAUTION
Ifsafetyinterlockswitchesaredisconnectedor
damagedthemachinecouldoperateunexpectedly
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches
dailyandreplaceanydamagedswitchesbefore
operatingthemachine.
UnderstandingtheSafetyInterlock
System
Thesafetyinterlocksystemisdesignedtopreventtheengine
fromstartingunless:
•Theparkingbrakeisengaged.
•Thebladecontrolswitch(PTO)isdisengaged.
•Themotioncontrolleversareintheneutrallocked
position
Thesafetyinterlocksystemalsoisdesignedtostopthe
enginewhenthetractioncontrolsaremovedfromthelocked
positionwiththeparkingbrakeengagedorifyourisefrom
theseatwhenthePTOisengaged.
Thehourmeterhassymbolstonotifytheuserwhenthe
interlockcomponentisinthecorrectposition.Whenthe
componentisinthecorrectposition,atrianglewilllightup
inthecorrespondingsquare.
G009181
1
Figure22
1.Triangleslightupwhentheinterlockcomponentsareinthe
correctposition
TestingtheSafetyInterlockSystem
ServiceInterval:Beforeeachuseordaily
Testthesafetyinterlocksystembeforeyouusethemachine
eachtime.Ifthesafetysystemdoesnotoperateasdescribed
below,haveanAuthorizedServiceDealerrepairthesafety
systemimmediately.
1.Sittingontheseat,engagetheparkingbrakeandmove
thebladecontrolswitch(PTO)toon.Trystartingthe
engine;theengineshouldnotcrank.
2.Sittingontheseat,engagetheparkingbrakeandmove
thebladecontrolswitch(PTO)tooff.Moveeither
motioncontrollever(outofneutrallockedposition).
Trystartingtheengine;theengineshouldnotcrank.
Repeatforothercontrollever.
3.Sittingontheseat,engagetheparkingbrake,movethe
bladecontrolswitch(PTO)tooffandmovethemotion
controlleverstoneutrallockposition.Nowstartthe
engine.Whiletheengineisrunning,releasetheparking
brake,engagethebladecontrolswitch(PTO)andrise
slightlyfromtheseat;theengineshouldstop.
4.Sittingontheseat,engagetheparkingbrake,movethe
bladecontrolswitch(PTO)tooffandmovethemotion
controlleverstoneutrallockposition.Nowstartthe
engine.Whiletheengineisrunning,centereither
motioncontrolandmove(forwardorreverse);the
engineshouldstop.Repeatforothermotioncontrol.
5.Sittingontheseat,disengagetheparkingbrake,move
thebladecontrolswitch(PTO)tooffandmovethe
motioncontrolleverstoneutrallockposition.Try
startingtheengine;theengineshouldnotcrank.
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