DrainandCleanFuelTank
DrainandcleanthefueltankperiodicallyasrecommendedintheOperator’s
Manual.Also,drainandcleanthefueltankifthefuelsystembecomes
contaminatedorifthemachineistobestoredforanextendedperiod.
Tocleanfueltank,ushtankoutwithcleandieselfuel.Makesuretankisfree
ofcontaminatesanddebris.
CheckFuelLinesandConnections
CheckfuellinesandconnectionsperiodicallyasrecommendedintheOperator’s
Manual.Checklinesfordeterioration,damage,leaksorlooseconnections.
Replacehoses,clampsandconnectionsasnecessary.
PrimetheFuelSystem
Thefuelsystemneedstobeprimedbeforestartingtheengineforthersttime,
afterrunningoutoffuelorafterfuelsystemmaintenance(e.g.drainingthe
lter/waterseparator,replacingafuelhose).T oprimethefuelsystem,makesure
thatthefueltankhasfuelinit.Then,turntheignitionkeytotheONpositionfor
10to15secondswhichallowsthefuelpumptoprimethefuelsystem.DONOT
usetheenginestartermotortocranktheengineinordertoprimethefuelsystem.
FuelTankRemoval
1.Parkmachineonalevelsurface,lowercuttingdecks,stopengineand
removekeyfromthekeyswitch.
2.Removethefrontleftwheelfromthemachine(seeWheels(page7–3)).
3.Useafueltransferpumptoremovefuelfromthefueltankandintoasuitable
container.
4.UsingFigure19asaguide,removethree(3)socketheadscrewsthatsecure
ttingcover(item2)tofueltank.Removettingcover.
5.Disconnectthefuelsenderfromthemachinewireharness.
g287552
Figure20
1.Fuelsender4.Venthose
2.Fuelreturnhose
5.Clamp(2)
3.Fuelsupplyhose
6.Labelfuelhosestoassureproperassembly.Disconnectfuelhosesfromthe
fuelsupplystandpipe,thefuelreturnstandpipeandthetankventelbow
ttingintopoftank(Figure20).
7.Routefuellinesfromunderclamps(item22)thatsecuresupplyandreturn
fuellinestotankIfnecessary,removeplugsandclampsfromtopoftank.
8.Removetwo(2)angeheadscrewsandlocknutsthatsecuretankhold
down(item24)toframe.Removetankholddown.
YanmarDieselEngine:ServiceandRepairs
Page4–18
Groundsmaster
®
5900&5910
16227SLRevB