Toro 74855 - The Safety Interlock System

EngagingtheBladeControlSwitch
(PTO)
Toengagethemowerbladesperformthefollowing:
1.SetthethrottletothepositionatFastposition;referto
OperatingtheThrottle(page17).
2.Pullupontheblade-control(PTO)switch.
Note:Engagingthebladecontrolswitch(PTO)withthe
throttlepositionathalforlesswillcauseexcessivewearto
thedrivebelts.
G008945
Figure16
DisengagingtheBladeControlSwitch
(PTO)
Todisengagethemowerblades,pushdownonthe
blade-control(PTO)switch.
G009174
Figure17
TheSafetyInterlockSystem
WARNING
Ifsafetyinterlockswitchesaredisconnectedor
damagedthemachinecouldoperateunexpectedly
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches
dailyandreplaceanydamagedswitchesbefore
operatingthemachine.
UnderstandingtheSafetyInterlock
System
Thesafetyinterlocksystemisdesignedtopreventtheengine
fromstartingunless:
•Theparkingbrakeisengaged.
•Thebladesaredisengaged.
•Themotioncontrolleversareintheneutrallockposition.
Thesafetyinterlocksystemalsoisdesignedtostoptheengine
whenthecontrolleversareoutoftheneutrallockposition
withtheparkingbrakeonorifyourisefromtheseatwhen
thebladesareengaged.
TestingtheSafetyInterlockSystem
Testthesafetyinterlocksystembeforeyouusethemachine
eachtime.Ifthesafetysystemdoesnotoperateasdescribed
below,haveanAuthorizedServiceDealerrepairthesafety
systemimmediately.
1.Whilesittingontheseat,engagetheparkingbrakeand
movethebladecontrolswitchtoOn.Trystartingthe
engine;theengineshouldnotcrank.
2.Whilesittingontheseat,engagetheparkingbrakeand
movethebladecontrolswitchtoOff.Moveeither
motioncontrollever(forwardorreverse).Trystarting
theengine;theengineshouldnotcrank.Repeatwith
theothermotioncontrollever.
3.Whilesittingontheseat,engagetheparkingbrake,
movethebladecontrolswitchtoOff,andlockthe
motioncontrolleversinneutral.Starttheengine.
Whiletheengineisrunning,releasetheparkingbrake,
engagethebladecontrolswitch,andriseslightlyfrom
theseat;theengineshouldstop.
4.Whilesittingontheseat,engagetheparkingbrake,
movethebladecontrolswitchtoOff,andlockthe
motioncontrolleversinneutral.Starttheengine.
Whiletheengineisrunning,centerthemotion
controls;theengineshouldstop.
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