Toro 74909TE - Using the Safety-Interlock System

UsingtheSafety-Interlock
System
CAUTION
Ifthesafety-interlockswitchesaredisconnectedor
damaged,themachinecouldoperateunexpectedly,
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches
dailyandreplaceanydamagedswitchesbefore
operatingthemachine.
UnderstandingtheSafety-Interlock
System
Thesafety-interlocksystemisdesignedtopreventtheengine
fromstartingunless:
•Theparkingbrakeisengaged.
•Theblade-controlswitch(PTO)isdisengaged.
•Themotion-controlleversareintheNEUTRAL-LOCK
position.
Thesafety-interlocksystemalsoisdesignedtoshutoffthe
enginewhenyoumovethetractioncontrolsfromthelocked
positionwiththeparkingbrakeengagedorifyourisefrom
theseatwhenthePTOisengaged.
Thehourmeterhassymbolstonotifyyouwhenthe
interlockcomponentisinthecorrectposition.Whenthe
componentisinthecorrectposition,atrianglelightsupin
thecorrespondingsquare.
G009181
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Figure22
1.Triangleslightupwhentheinterlockcomponentsareinthe
correctposition.
TestingtheSafety-InterlockSystem
ServiceInterval:Beforeeachuseordaily
Testthesafety-interlocksystembeforeyouusethemachine
eachtime.Ifthesafetysystemdoesnotoperateasdescribed
below,haveanAuthorizedServiceDealerrepairthesafety
systemimmediately.
1.Sitontheseat,engagetheparkingbrakeandmovethe
blade-controlswitch(PTO)totheONposition.Try
startingtheengine;theengineshouldnotcrank.
2.Sitontheseat,engagetheparkingbrakeandmovethe
blade-controlswitch(PTO)totheOFFposition.Move
eithermotion-controllever(outoftheNEUTRAL-LOCK
position).Trystartingtheengine;theengineshould
notcrank.Repeatfortheothercontrollever.
3.Sitontheseat,engagetheparkingbrake,movethe
blade-controlswitch(PTO)totheOFFposition,and
movethemotion-controlleverstotheNEUTRAL-LOCK
position.Starttheengine.Whiletheengineisrunning,
releasetheparkingbrake,engagetheblade-control
switch(PTO),andriseslightlyfromtheseat;theengine
shouldshutoff.
4.Sitontheseat,engagetheparkingbrake,movethe
blade-controlswitch(PTO)totheOFFposition,and
movethemotion-controlleverstoNEUTRAL-LOCK
position.Starttheengine.Whiletheengineisrunning,
centereithermotion-controlleverandmoveitforward
orreverse;theengineshouldshutoff.Repeatforthe
othermotion-controllever.
5.Sitontheseat,disengagetheparkingbrake,movethe
blade-controlswitch(PTO)totheOFFposition,and
movethemotion-controlleverstoNEUTRAL-LOCK
position.Trystartingtheengine;theengineshould
notcrank.
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