Toro 31201 - Fuel System Maintenance; Servicing the Water Separator; Bleeding the Fuel System

FuelSystem
Maintenance
Note:RefertoAddingFuel(page16)forproperfuel
recommendations.
DANGER
Undercertainconditions,dieselfuelandfuel
vaporsarehighlyammableandexplosive.Are
orexplosionfromfuelcanburnyouandothersand
cancausepropertydamage.
•Useafunnelandllthefueltankoutdoors,in
anopenarea,whentheengineisoffandiscold.
Wipeupanyfuelthatspills.
•Donotllthefueltankcompletelyfull.Addfuel
tothefueltankuntilthelevelistothebottom
ofthellerneck.
•Neversmokewhenhandlingfuel,andstayaway
fromanopenameorwherefuelfumesmaybe
ignitedbyaspark.
•Storefuelinaclean,safety-approvedcontainer
andkeepthecapinplace.
ServicingtheWaterSeparator
ServiceInterval:Every400hours
Drainthewaterorothercontaminantsfromthewater
separator(Figure34)daily.Replacetheltercanisterafter
every400hoursofoperation.
1.Placeacleancontainerunderthefuellter.
2.Loosenthedrainplugonthebottomofthelter
canister(Figure34).
Figure34
1.Waterseparatordrainplug
3.Cleantheareawheretheltercanistermounts.
4.Removetheltercanisterandcleanthemounting
surface.
5.Lubricatethegasketontheltercanisterwithcleanoil.
6.Installtheltercanisterbyhanduntilthegasket
contactsmountingsurface,thenrotateitanadditional
1/2turn.
7.Tightenthedrainplugonthebottomofthelter
canister.
BleedingtheFuelSystem
Youmustbleedthefuelsystembeforestartingtheengineif
anyofthefollowingsituationshaveoccurred:
•Initialstartupofanewmachine.
•Enginehasceasedrunningduetolackoffuel.
•Maintenancehasbeenperformeduponfuelsystem
components;i.e.,lterreplaced,separatorserviced,etc.
1.Parkthemachineonalevelsurfaceandensurethatthe
fueltankisatleasthalffull.
2.Openthehoodandsecureitwiththeproprod.
3.Opentheairbleedscrewonthefuelinjectionpump
(Figure35)witha12mmwrench.
Figure35
1.Bleedscrew
4.TurnthekeyintheignitionswitchtotheOnposition.
Theelectricfuelpumpwillbeginoperation,thereby
forcingairoutaroundtheairbleedscrew .Leavethe
keyintheOnpositionuntilasolidstreamoffuelows
outaroundthescrew .
5.TightenthescrewandturnthekeytotheOffposition.
Note:Normally,theengineshouldstartaftertheabove
bleedingproceduresarefollowed.However,ifenginedoes
notstart,airmaybetrappedbetweeninjectionpumpand
injectors;refertoBleedingAirfromtheFuelInjectors(page
37).
36