Toro 74990 - The Safety-Interlock System

StoppingtheEngine
CAUTION
Childrenorbystandersmaybeinjuredifthey
moveorattempttooperatethemachinewhile
itisunattended.
Alwaysremovetheignitionkeyandsetthe
parkingbrakewhenleavingthemachine
unattended,evenifjustforafewminutes.
Lettheengineidleatslowthrottle(turtle)for60
secondsbeforeturningtheignitionswitchoff.
g029635
Figure21
Important:Makesurethatthefuelshutoff
valveisclosedbeforetransportingorstoring
themachine,asfuelleakagemayoccur.Setthe
parkingbrakebeforetransporting.Makesureto
removethekeyasthefuelpumpmayrunand
causethebatterytolosecharge.
TheSafety-Interlock
System
CAUTION
Ifsafety-interlockswitchesaredisconnected
ordamagedthemachinecouldoperate
unexpectedlycausingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlock
switchesdailyandreplaceanydamaged
switchesbeforeoperatingthemachine.
Understandingthe
Safety-InterlockSystem
Thesafety-interlocksystemisdesignedtopreventthe
enginefromstartingunless:
•Theparkingbrakeisengaged.
•Theblade-controlswitch(PTO)isdisengaged.
•Themotion-controlleversareintheneutral-locked
position
Thesafety-interlocksystemalsoisdesignedtostop
theenginewhenthetractioncontrolsaremovedfrom
thelockedpositionwiththeparkingbrakeengagedor
ifyourisefromtheseatwhenthePTOisengaged.
Thehourmeterhassymbolstonotifytheuserwhen
theinterlockcomponentisinthecorrectposition.
Whenthecomponentisinthecorrectposition,a
trianglewilllightupinthecorrespondingsquare.
g009181
Figure22
1.Triangleslightupwhentheinterlockcomponentsareinthe
correctposition
TestingtheSafety-Interlock
System
ServiceInterval:Beforeeachuseordaily
24