Toro Workman HDX Series - Fuel System Maintenance; Fuel System Component Service

ReplacingtheSparkPlugs
ServiceInterval:Every100hours/Yearly(whichever
comesrst)Replacethesparkplugs
ifnecessary.
Type:NGK-RBKR5E(orequivalent)
AirGap:0.81mm(0.032inch)
Important:Acracked,fouled,dirty,or
malfunctioningsparkplugmustbereplaced.Do
notsand-blast,scrape,orcleanelectrodesby
usingawirebrushbecausegritmayeventually
releasefromtheplugandfallintothecylinder.
Theresultisusuallyadamagedengine.
1.Cleantheareaaroundthesparkplugsothat
foreignmattercannotfallintothecylinderwhen
youremovethesparkplug.
2.Pullthewireofftheterminalofthesparkplug.
3.Removetheplugfromthecylinderhead.
4.Checktheconditionofthesideelectrode,center
electrode,andcenterelectrodeinsulatorto
ensurethatthereisnodamage(Figure38).
g238437
Figure38
1.Sideelectrode3.Airgap(nottoscale)
2.Centerelectrodeinsulator
5.Settheairgapbetweenthecenterandside
oftheelectrodesat0.81mm(0.032inch)as
showninFigure38.
6.Installthesparkplugintothecylinderhead,and
torquetheplugto24.5to29N∙m(18to22ft-lb).
7.Installthespark-plugwire.
8.Repeatsteps1through7fortheotherspark
plug.
FuelSystem
Maintenance
InspectingtheCarbon
CanisterAirFilter
ServiceInterval:Aftertherst50hours—Inspectthe
openingonthecarboncanisterair
lter.
Every100hours—Inspecttheopeningonthe
carboncanisterairlter.
Every200hours—Changethecarboncanister
airlter.
1.Locatetheairlteronthebottomofthecarbon
canister(Figure39).
g016089
Figure39
1.Filteropening
2.Ensurethattheopeningonthebottomofthe
lterisclearandopen.
ReplacingtheFuelFilter
ServiceInterval:Every400hours
1.Raisethebedandplacethesafetysupporton
theextended-liftcylindertoholdupthebed.
2.Unplugthewire-harnessconnectorsfromthe
fuelpump(Figure40).
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