Figure39
InstallingtheSparkPlug
Tightenthesparkplugto18-22ft-lb(25-29N-m).
18-22 ft-lb
25-29 N-m
G010339
Figure40
CleaningtheBlowerHousing
Toensurepropercooling,makesurethegrassscreen,
coolingns,andotherexternalsurfacesoftheengine
arekeptcleanatalltimes.
Annuallyorevery100hoursofoperation(moreoften
underextremelydusty,dirtyconditions),removethe
blowerhousingandanyothercoolingshrouds.Clean
thecoolingnsandexternalsurfacesasnecessary.Make
surethecoolingshroudsarereinstalled.Torquethe
blowerhousingscrewsto5.5ft-lb(7.5N-m).
Important:Operatingtheenginewithablocked
grassscreen,dirtyorpluggedcoolingns,and/or
coolingshroudsremoved,willcauseenginedamage
duetooverheating.
FuelSystem
Maintenance
ReplacingtheFuelFilter
ServiceInterval:Every500hours/Yearly(whichever
comesrst)(moreoftenunderdusty,
dirtyconditions).
1.Disengagethebladecontrolswitch(PTO),movethe
motioncontrolleverstotheneutrallockposition,
andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Allowthemachinetocooldown.
4.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
5.Squeezetheendsofthehoseclampstogetherand
slidethemawayfromthelter(Figure41).
Figure41
1.Fuellter
3.Fuelline
2.Hoseclamp
6.Removethelterfromthefuellines.
7.Installanewlterandmovethehoseclampsclose
tothelter(Figure41).
8.Openthefuelshutoffvalve.
Note:Itisimportanttoreinstallthefuellinehosesand
securewithplastictiesthesameastheywereoriginally
installedatthefactorytokeepthefuellineawayfrom
componentsthatcouldcausefuellinedamage.
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