Toro TX 427 Series - Fuel System Maintenance; Changing the Fuel Filter

CheckingtheSparkPlugs
1.Lookatthecenterofbothsparkplugs(Figure41).If
youseelightbrownorgrayontheinsulator,theengine
isoperatingproperly.Ablackcoatingontheinsulator
usuallymeansthattheaircleanerisdirty.
Important:Nevercleanthesparkplugs.Always
replacethesparkplugswhentheyhaveablack
coating,wornelectrodes,anoilylm,orcracks.
Figure41
1.Center-electrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
2.Checkthegapbetweenthecenterandsideelectrodes
(Figure41).
3.Bendthesideelectrode(Figure41)ifthegapisnot
correct.
InstallingtheSparkPlugs
1.Threadthesparkplugsintothesparkplugholes.
2.Tightenthesparkplugsto27N∙m(20ft-lb).
3.Pushthewiresontothesparkplugs(Figure40).
4.Closethehood.
FuelSystem
Maintenance
ChangingtheFuelFilter
ServiceInterval:Every200hours/Yearly(whichevercomes
rst)
1.Lowertheloaderarms,shutofftheengine,andremove
thekey.
2.Openthehoodandremovetheleftsidescreen.
3.Loosenthetankcaptorelievepressure.
4.Clampthefuellinesonbothsidesofthefuellter
(Figure42).
Figure42
1.Filter2.Hoseclamp
5.Squeezetheendsofthehoseclampstogetherandslide
themawayfromthelter(Figure42).
6.Placeadrainpanunderthefuellinestocatchanyleaks,
thenremovethelterfromthefuellines.
7.Slidethefuellinesonthenewfuellterttings,
ensuringthatthearrowonthelterpointsawayfrom
thefuellinecomingfromthefueltankandtowardthe
linegoingtothefuelpump.
Important:Neverinstalladirtylter.
8.Movethehoseclampsclosetothelter.
9.Removetheclampblockingfuelowandopenthe
fuelvalves.
10.Securethetankcap.
11.Replacethesidescreenandclosethehood.
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