Toro TimeCutter Z5020 74372 - Fuel System and Engine Cleaning; Spark Plug Installation; Cleaning Blower Housing; Replacing the Fuel Filter

Figure28
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
InstallingtheSparkPlug
1.Installthesparkplug.Makesurethattheairgapis
setcorrectly.
2.Tightenthesparkplugto18-22ft-lb(25-29N⋅m).
3.Pushthewireontothesparkplug(Figure27).
CleaningtheBlowerHousing
Toensurepropercooling,makesurethegrassscreen,
coolingns,andotherexternalsurfacesoftheengine
arekeptcleanatalltimes.
Annuallyorevery100hoursofoperation(moreoften
underextremelydusty,dirtyconditions),removethe
blowerhousingandanyothercoolingshrouds.Clean
thecoolingnsandexternalsurfacesasnecessary.Make
surethecoolingshroudsarereinstalled.
Important:Operatingtheenginewithablocked
grassscreen,dirtyorpluggedcoolingns,and/or
coolingshroudsremoved,willcauseenginedamage
duetooverheating.
FuelSystem
Maintenance
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areor
explosionfromgasolinecanburnyouand
othersandcandamageproperty.
•Performanyfuelrelatedmaintenancewhen
theengineiscold.Dothisoutdoorsinan
openarea.Wipeupanygasolinethatspills.
•Neversmokewhendraininggasoline,and
stayawayfromanopenameorwherea
sparkmayignitethegasolinefumes.
ReplacingtheFuelFilter
ServiceInterval:Every100hours—Replacethefuel
lter.
Neverinstalladirtylterifitisremovedfromthefuel
line.
1.Parkthemachineonalevelsurfaceanddisengage
thebladecontrolswitch.
2.Movethemotioncontrolleversoutwardtothe
parkposition,stoptheengine,removethekey,and
waitforallmovingpartstostopbeforeleavingthe
operatingposition.
3.Raisetheseatandlocatethefuellinecomingfrom
thefueltankbelow.Thefuellterisinthefuelline
betweenthetankandengine.
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