(Figure27).Fortheoutsidebladespindleonly,referto
AdjustingtheCuttingUnitPitchprocedureinMower
Maintenance,page50.
Figure27
1.Frontcastorarm
MatchingHeightOfCutBetweenCuttingUnits
1.Positionbladesidetosideonoutsidespindleof
bothwingcuttingunits.Measurefromtheoor
tothetipofthecuttingedgeonbothunitsand
compare.Thesenumbersshouldbewithin1/8inch
(3mm)ofeachother.
2.Addorremove1/8inchshimsasneededonwing
castorwheels.Recheckmeasurementbetween
outsideedgesofbothwingcuttingunitsandadjust
asnecessary.
StartingandStoppingthe
Engine
Important:Thefuelsystemwillautomatically
bleeditselfwhenanyofthefollowingsituations
occur:
•Initialstartupofanewmachine.
•Theenginehasceasedrunningduetolackoffuel.
•Maintenancehasbeenperformeduponthefuel
systemcomponents.
RefertotheBleedingAirfromtheInjectorsprocedure
inFuelSystemMaintenance,page39.
1.Ensurethattheparkingbrakeisset.Removeyour
footfromthetractionpedalandensurethatitisin
neutral.
2.Movethethrottlecontroltothemid-idleposition.
3.TurntheignitionkeytotheRunposition.Theglow
indicatorwilllight.
4.Whentheglowindicatordims,turntheignitionkey
totheStartposition.Releasethekeyimmediately
whentheenginestartsandallowittoreturntothe
Runposition.Allowenginetowarmupatmid
speed(withoutload),thenmovethethrottlecontrol
tothedesiredposition.
Important:Donotrunthestartermotor
morethan15secondsatatimeorpremature
starterfailuremayresult.Iftheenginefailsto
startafter15seconds,turnthekeytotheOff
position,recheckthecontrolsandprocedures,
wait15additionalseconds,andrepeatthe
startingprocedure.
Whenthetemperatureislessthan20°F(-75C),
preheatglowplugstwicepriortoinitialcranking
attempt.Thestartermotorcanberunfor30
secondsonthen60secondsofffor2attempts.
5.Tostoptheengine,movethethrottlecontrol
backwardtotheSlowposition,movethePTOlever
totheOffposition,settheparkingbrake,androtate
theignitionkeytoOff.Removethekeyfromthe
switchtopreventaccidentalstarting.
Important:Allowenginetoidlefor5minutes
beforeshuttingitoffafterafullloadoperation.
Failuretodosomayleadtoturbo-chargertrouble.
EngineCoolingFanOperation
Theenginecoolingfanswitchhasthreepositionsfor
controllingtheoperationofthefan.Thethreepositions
areR,AutoandF.Thefanhastheabilitytoreverse
toblowdebrisoffoftherearscreen.Undernormal
operatingconditions,theswitchshouldbeintheAuto
position.InAuto,thefanspeedwillbecontrolledby
thecoolanttemperatureandwillautomaticallyreverse
toblowdebrisoffoftherearscreen.Areversecycle
isautomaticallyinitiatedwheneitherthecoolantor
hydraulictemperaturereachesacertainpoint.By
pressingthefanswitchforwardintotheRposition,the
fanwillcompleteamanuallyinitiatedreversecycle.This
positionisspringloadedmeaningthattheswitchwill
returntotheAutopositionafterbeingpressedintothe
Rposition.Bypressingtheswitchbackwardsintothe
Fposition,thereversingfunctionofthefanisturned
off.Thefanwillonlyrunintheforwarddirectionwith
itsspeedbeingcontrolledbythecoolanttemperature.
Thispositionwouldbepreferredwhenitisundesirable
toblowdebrisoutofthebackofthemachine.
27