Exmark QUEST SP - Safety Interlock System Checks

Maintenance
Figure19
1.Spindle
2.Blade
3.Bladedrivewasher
4.Bladeboltwasherassembly—T orqueto50-60ft-lb
(68-81N-m)Applylubricanttothreadsasneededto
preventseizing.Copper-basedanti-seizepreferable.
Greaseacceptablesubstitute.
B.Applylubricanttothethreadsoftheblade
boltasneededtopreventseizing.Copper
basedanti-seizeispreferable.Greaseisan
acceptablesubstitute.
C.Installthebladedrivewasherandbladebolt
washerassemblyintothespindle.Makesure
thehexinthewasherisengagedonthe
spindlebeforetighteningthebolt.Install
bladeboltngertight.
D.Placewrenchonthetopspindlenutthen
torquethebladeboltsto50-60ft-lb(68-81
N-m).
WARNING
Incorrectinstallationofthebladeor
componentsusedtoretainthebladecan
bedangerous.Failuretousealloriginal
componentsandassembledasshowncould
allowabladeorbladecomponenttobe
thrownoutfromunderthedeckresultingin
seriouspersonalinjuryordeath.
AlwaysinstalltheoriginalExmarkblades,
bladebushings,andbladeboltsasshown.
CheckSafetyInterlock
System
ServiceInterval:Beforeeachuseordaily
Note:Topreventenginecut-outsonroughterrain
theseatkillswitchhasa1/2seconddelay.
1.Checkstartingcircuit.Startershouldcrankwith,
parkingbrakeengaged,PTOdisengagedand
motioncontrolleversmovedoutintheneutral
lockposition.Theoperatordoesnotneedtobe
intheseattostarttheengine.
Trytostartwithoperatorinseat,parkingbrake
disengaged,PTOdisengagedandmotioncontrol
leversintheneutrallockposition-startermust
notcrank.
Trytostartwithoperatorinseat,parkingbrake
engaged,PTOengagedandmotioncontrol
leversintheneutrallockposition-startermust
notcrank.
Trytostartwithoperatorinseat,parking
brakeengaged,PTOdisengaged,andtheleft
motioncontrolleverin,startermustnotcrank,
repeatagainwiththerightleverin,thenwith
bothleversin-startermustnotcrank.
2.Checkthekillcircuits.Runengineatone-third
throttle,disengageparkingbrakeandraiseoff
ofseat(butdonotgetoffofmachine)engine
mustinitiateshutdownafterapproximately1/2
secondhaselapsed(seathastimedelaykillswitch
topreventcut-outsonroughterrain).
Runengineatone-thirdthrottle,engagePTO
andraiseoffofseat(butdonotgetoffof
machine)enginemustinitiateshutdownafter
onesecondhaselapsedifthehandlesarein.The
delaywillbe1/2secondifthehandlesareout.
Runengineatone-thirdthrottle,withbrake
disengaged,moveleversinandraiseoffseat(but
donotgetoffofmachine)enginemustinitiate
shutdownafter1/2secondhaselapsed.
Again,runengineatone-thirdthrottle,brake
engaged,andmoveleftmotioncontrollever
in-enginemustinitiateshutdownafter1/2
secondhaselapsed.
Repeatagainmovingtherightleverin,then
movingbothleversin-enginemustinitiate
shutdownafter1/2secondhaselapsedwhether
operatorisonseatornot.
Note:Ifmachinedoesnotpassanyofthesetests,
donotoperate.ContactyourauthorizedEXMARK
SERVICEDEALER.
Important:Itisessentialthatoperatorsafety
mechanismsbeconnectedandinproper
operatingconditionpriortouseformowing.
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