Toro 74920 - Mower Blade and Safety Interlock Systems; Operating the Mower Blade Control Switch (PTO); The Safety Interlock System Explained; Safety Interlock System Functionality

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Figure20
OperatingtheMowerBlade
ControlSwitch(PTO)
Thebladecontrolswitch(PTO)startsandstopsthe
mowerbladesandanypoweredattachments.
EngagingtheBladeControlSwitch
(PTO)
Engagethebladecontrolswitch(PTO)withthethrottle
positionatFast.
Note:Engagingthebladecontrolswitch(PTO)with
thethrottlepositionathalforlesswillcauseexcessive
weartothedrivebelts.
G008945
Figure21
DisengagingtheBladeControlSwitch
(PTO)
G009174
Figure22
TheSafetyInterlockSystem
WARNING
Ifsafetyinterlockswitchesaredisconnectedor
damagedthemachinecouldoperateunexpectedly
causingpersonalinjury.
•Donottamperwiththeinterlockswitches.
•Checktheoperationoftheinterlockswitches
dailyandreplaceanydamagedswitchesbefore
operatingthemachine.
UnderstandingtheSafetyInterlock
System
Thesafetyinterlocksystemisdesignedtopreventthe
enginefromstartingunless:
•Theparkingbrakeisengaged.
•Thebladesaredisengaged.
•Themotioncontrolleversareintheneutrallock
position.
Thesafetyinterlocksystemalsoisdesignedtostopthe
enginewhenthecontrolleversareoutoftheneutral
lockpositionwiththeparkingbrakeonorifyourise
fromtheseatwhenthebladesareengaged.
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