Toro Groundsmaster 7210 Series - Using the Safety-Interlock System; Understanding the Safety-Interlock System; Testing the Safety-Interlock System; Using the SCM to Diagnose System Problems

UsingtheSafety-Interlock
System
CAUTION
Ifthesafety-interlockswitchesare
disconnectedordamaged,themachinecould
operateunexpectedly,causingpersonal
injury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlock
switchesdailyandreplaceanydamaged
switchesbeforeoperatingthemachine.
Understandingthe
Safety-InterlockSystem
Thesafety-interlocksystempreventstheenginefrom
startingunless:
•Youaresittingontheseatortheparkingbrake
isengaged.
•Thepowertakeoff(PTO)isdisengaged.
•Themotion-controlleversareintheNEUTRAL-LOCK
position.
•Theenginetemperatureisbelowthemaximum
operatingtemperature.
Thesafety-interlocksystemalsoshutsoffthe
enginewhenyoumovethetractioncontrolsfrom
theNEUTRAL-LOCKpositionwiththeparkingbrake
engaged.IfyourisefromtheseatwhenthePTO
isengaged,thereisa1-seconddelayandthenthe
engineshutsoff.
TestingtheSafety-Interlock
System
ServiceInterval:Beforeeachuseordaily
Testthesafety-interlocksystembeforeyouusethe
machineeachtime.Ifthesafetysystemdoesnot
operateasdescribedbelow,haveanAuthorized
ServiceDealerrepairthesafetysystemimmediately.
1.Sitontheseat,engagetheparkingbrake,and
movethePTOtotheONposition.Trystarting
theengine;theengineshouldnotcrank.
2.Sitontheseat,engagetheparkingbrake,
andmovethePTOtotheOFFposition.
Moveeithermotion-controlleveroutofthe
NEUTRAL-LOCKposition.Trystartingtheengine;
theengineshouldnotcrank.Repeatforother
motion-controllever.
3.Sitontheseat,engagetheparkingbrake,move
thePTOswitchtotheOFFposition,andmove
themotion-controlleverstotheNEUTRAL-LOCK
position.Starttheengine.Whiletheengineis
running,releasetheparkingbrake,engagethe
PTO,andriseslightlyfromtheseat;theengine
shouldshutoffwithin2seconds.
4.Withoutanoperatorontheseat,engagethe
parkingbrake,movethePTOswitchtotheOFF
position,andmovethemotion-controlleversto
theNEUTRAL-LOCKposition.Starttheengine.
Whiletheengineisrunning,centereithermotion
control;theengineshouldshutoffwithin2
seconds.Repeatfortheothermotion-control
lever.
5.Withoutanoperatorontheseat,disengagethe
parkingbrake,movethePTOswitchtotheOFF
position,andmovethemotion-controllevers
totheNEUTRAL-LOCKposition.Trystartingthe
engine;theengineshouldnotcrank.
UsingtheSCMtoDiagnose
SystemProblems
Themachineisequippedwithastandardcontrol
module(SCM)monitoringsystemthattracksthe
functionofvariouskeysystems.TheSCMislocated
undertherightcontrolpanel.Accessitthroughthe
sidepanelcover(Figure14).T oopenthesidepanel
cover,releasethe2latchesandpulloutonit.
g022100
Figure14
1.Sidepanelcover
2.Latches
OnthefaceoftheSCMare11LEDsthatilluminateto
indicatevarioussystemconditions.Youcanuse7of
theselightsforsystemdiagnosis.RefertoFigure15
foradescriptionofwhateachlightmeans.Fordetails
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