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
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areor
explosionfromgasolinecanburnyouand
othersandcandamageproperty.
•Performanyfuelrelatedmaintenancewhen
theengineiscold.Dothisoutdoorsinan
openarea.Wipeupanygasolinethatspills.
•Neversmokewhendraininggasoline,and
stayawayfromanopenameorwherea
sparkmayignitethegasolinefumes.
ReplacingtheFuelFilter
ServiceInterval:Every100hours—Replacethefuel
lter.
Neverinstalladirtylterifitisremovedfromthefuel
line.
1.Parkthemachineonalevelsurfaceanddisengage
thebladecontrolswitch.
2.Movethemotioncontrolleversoutwardtothe
parkposition,stoptheengine,removethekey,and
waitforallmovingpartstostopbeforeleavingthe
operatingposition.
3.Raisetheseatandlocatethefuellinecomingfrom
thefueltankbelow.Thefuellterisinthefuelline
betweenthetankandengine.
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