Toro 07390 Workman HDX-Auto - Fuel System Maintenance; Replacing the Fuel Filter

ReplacingtheSparkPlug
ServiceInterval:Every400hours
Sparkplugtype:ChampionRC14YC
Airgap:0.76mm(0.030inch)
1.Cleantheareaaroundthesparkplugsoforeignmatter
cannotfallintothecylinderwhenyouremovethe
sparkplug.
2.Pullwiresoffthesparkplugandremovetheplugs
fromthecylinderhead.
3.Checktheconditionofthesideelectrode,center
electrode,andcenterelectrodeinsulatortoensurethat
thereisnodamage(Figure56).
Important:Acracked,fouled,dirty,orotherwise
malfunctioningsparkplugmustbereplaced.Do
notsandblast,scrape,orcleanelectrodesby
usingawirebrushbecausegritmayeventually
releasefromtheplugandfallintothecylinderand
damagedtheengine.
G019300
1 2
4
3
Figure56
1.Sideelectrode
3.Insulator
2.Centerelectrode4.Airgapat0.76mm(0.030
inch)
4.Settheairgap(Figure56)betweenthecenterandside
electrodesat0.81mm(0.032inch).
5.Installthecorrectlygappedsparkplugandtighten
themto24.5to29N-m(18to22ft-lb).
Note:Ifyoucannotuseatorquewrench,tightenthe
plugrmly.
6.Installthespark-plugwire.
FuelSystem
Maintenance
ReplacingtheFuelFilter
ServiceInterval:Every400hours
1.Raisethebed(ifsoequipped)andinstallthebedsafety
supportontotheextendedliftcylindertoholdupthe
bed;refertoRaisingtheCargoBox(page19)and
UsingtheBedSafetySupport(page36).
2.Unplugthewiringharnessconnectorsfromthefuel
pump(Figure57).
3.Loosenthehoseclampanddisconnectthefuelline
fromthefuelpumpcap(Figure57).
Figure57
1.Fuelpump
3.Fuelline/fuellter
2.Hoseclamp
4.Removethefuel-pumpcapbyunthreaditfromthetop
ofthefueltank(Figure57).
Important:Donotallowthefuelpumpassembly
torotateduringtheremovalprocess.Ifthepump
rotates,itcanresultindamagetotheoatarm
assembly.
5.Removethefuelpumpassemblyandfuellterfrom
thetank(Figure57.
6.Removetheclampsecuringthefuellterhosetothe
fuelpumptting(Figure57).
7.Removethehosefromthetting(Figure57).
8.Insertthenewhoseclampontothenewfuellterhose.
9.Insertthehoseontothefuelpumpandsecurethe
clamp.
10.Inserttheassemblyintothefueltankandtightenthe
capto20to22N-m(175to200in-lb).
Note:Note:Verifythattheoatarmdoesnotcontact
thefueltankwallsatanypointthroughthefullrange
ofmotion.
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