Exmark Quest 4500-450 - Safety Interlock System Operation; Driving and Maneuvering

Operation
TheSafetyInterlockSystem
CAUTION
Ifsafetyinterlockswitchesaredisconnected
ordamagedthemachinecouldoperate
unexpectedlycausingpersonalinjury.
•DoNottamperwiththeinterlock
switches.
•Checktheoperationoftheinterlock
switchesdailyandreplaceanydamaged
switchesbeforeoperatingthemachine.
UnderstandingtheSafetyInterlock
System
Thesafetyinterlocksystemisdesignedtopreventthe
enginefromstartingunless:
•Thebladesaredisengaged.
•Themotioncontrolleversareintheneutral
position.
•Theparkingbrakeisengaged.
Thesafetyinterlocksystemisdesignedtoinitiate
engineshutdownwhen:
•Theparkingbrakeisdisengagedandtheoperator
getsoffmachine.
•ThePTOisengagedandtheoperatorgetsoff
machine.
•Theparkingbrakeisdisengagedandleversarein
andtheoperatorgetsoffmachine.
•Theparkingbrakeisengagedandmotioncontrol
leversarein.
TestingtheSafetyInterlockSystem
Testthesafetyinterlocksystembeforeyouusethe
machineeachtime
1.Checkstartingcircuit.Startershouldcrankwith
parkingbrakeengaged,PTOdisengagedand
motioncontrolleversmovedoutintheneutral
lockposition.Theoperatordoesnotneedtobe
intheseattostarttheengine.
Trytostartwithoperatorinseat,parkingbrake
disengaged,PTOdisengagedandmotioncontrol
leversintheneutrallockposition-startermust
notcrank.
Trytostartwithoperatorinseat,parkingbrake
engaged,PTOengagedandmotioncontrol
leversintheneutrallockposition-startermust
notcrank.
Trytostartwithoperatorinseat,parkingbrake
engaged,PTOdisengaged,andtheleftmotion
controlleverin,startermustnotcrank,repeat
againwiththerightleverin,thenwithboth
leversin-startermustnotcrank.
2.Checkkillcircuits.Runengineatone-third
throttle,disengageparkingbrakeandraiseoff
ofseat(butdonotgetoffofmachine)engine
mustinitiateshutdown.
Runengineatone-thirdthrottle,engagePTO
andraiseoffofseat(butdonotgetoffof
machine)enginemustinitiateshutdown.
Runengineatone-thirdthrottle,withbrake
disengaged,moveleversinandraiseoffseat(but
donotgetoffofmachine)enginemustinitiate
shutdown.
Again,runengineatone-thirdthrottle,brake
engaged,andmoveleftmotioncontrolleverin
-enginemustinitiateshutdown.
Repeatagainmovingtherightleverin,then
movingbothleversin-enginemustinitiate
shutdownwhetheroperatorisonseatornot.
Note:Ifmachinedoesnotpassanyofthesetests,
DoNotoperate.ContactyourauthorizedEXMARK
SERVICEDEALER.
Important:Itisessentialthatoperatorsafety
mechanismsbeconnectedandinproper
operatingconditionpriortouseformowing.
DrivingForwardorBackward
Thethrottlecontrolregulatestheenginespeedas
measuredinrpm(revolutionsperminute).Place
thethrottlecontrolintheFastpositionforbest
performance.AlwaysoperateintheFast(fullthrottle)
position.
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