Toro 74143 - Using the Safety-Interlock System

StoppingtheEngine
CAUTION
Childrenorbystandersmaybeinjuredifthey
moveorattempttooperatethemachinewhileitis
unattended.
Alwaysremovetheignitionkeyandsettheparking
brakewhenleavingthemachineunattended,even
ifjustforafewminutes.
Lettheengineidleatslowthrottle(turtle)for60seconds
beforeturningtheignitionswitchoff.
Figure20
Important:Makesurethatthefuelshutoffvalveis
closedbeforetransportingorstoringthemachine,as
fuelleakagemayoccur.Settheparkingbrakebefore
transporting.Makesuretoremovethekeyasthefuel
pumpmayrunandcausethebatterytolosecharge.
UsingtheSafety-Interlock
System
CAUTION
Ifsafety-interlockswitchesaredisconnectedor
damagedthemachinecouldoperateunexpectedly
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches
dailyandreplaceanydamagedswitchesbefore
operatingthemachine.
UnderstandingtheSafety-Interlock
System
Thesafety-interlocksystemisdesignedtopreventtheengine
fromstartingunless:
•Theparkingbrakeisengaged.
•Theblade-controlswitch(PTO)isdisengaged.
•Themotion-controlleversareintheneutral-locked
position.
Thesafety-interlocksystemalsoisdesignedtostopthe
enginewhenthetractioncontrolsaremovedfromthelocked
positionwiththeparkingbrakeengagedorifyourisefrom
theseatwhenthePTOisengaged.
TestingtheSafety-InterlockSystem
ServiceInterval:Beforeeachuseordaily
Testthesafety-interlocksystembeforeyouusethemachine
eachtime.Ifthesafetysystemdoesnotoperateasdescribed
below,haveanAuthorizedServiceDealerrepairthesafety
systemimmediately.
1.Sittingontheseat,engagetheparkingbrakeandmove
theblade-controlswitch(PTO)totheOnposition.
Trystartingtheengine;theengineshouldnotcrank.
2.Sittingontheseat,engagetheparkingbrakeandmove
theblade-controlswitch(PTO)totheOffposition.
Moveeithermotion-controllever(outofneutrallocked
position).Trystartingtheengine;theengineshould
notcrank.Repeatforothercontrollever.
3.Sittingontheseat,engagetheparkingbrake,move
theblade-controlswitch(PTO)totheOffposition,
andmovethemotion-controlleverstoneutral-lock
position.Nowstarttheengine.Whiletheengine
isrunning,releasetheparkingbrake,engagethe
blade-controlswitch(PTO)andriseslightlyfromthe
seat;theengineshouldstop.
4.Sittingontheseat,engagetheparkingbrake,move
theblade-controlswitch(PTO)totheOffposition,
andmovethemotion-controlleverstoneutral-lock
position.Nowstarttheengine.Whiletheengine
isrunning,centereithermotioncontrolandmove
21