Toro 74641 - Bleeding the Hydraulic System; Mower Maintenance; Servicing the Cutting Blades

9.ProceedtotheBleedingtheHydraulicSystemsection.
Important:Failuretoperformthe Bleeding
the Hy draulic System procedureafterchanging
hydraulicltersandoilcanresultinirreparable
damagetothetransaxledrivesystem.
BleedingtheHydraulicSystem
1.Entertheoperator'sposition.Startengineand
movethrottlecontrolaheadto1/2throttleposition.
Disengageparkingbrake.
A.Movethebypassleversintothepushingthe
machineposition;refertothePushingthe
MachinebyHandsectioninOperation.Withthe
bypassvalvesopenandtheenginerunning,slowly
movethemotioncontrolleversinbothforward
andreverse(5or6times).
B.Movethebypassleversintotheoperating
themachineposition.Withthebypassvalve
closedandtheenginerunning,slowlymovethe
directionalcontrolinbothforwardandreverse
directions(5to6times).
C.Stoptheengineandchecktheoillevelinthe
expansionreservoir.Addthespeciedoilasuntil
itreachestheFULLCOLDlineontheexpansion
reservoir.
2.Repeatstep1untilalltheairiscompletelypurgedfrom
thesystem.
Whenthetransaxleoperatesatnormalnoiselevelsand
movessmoothlyforwardandreverseatnormalspeeds,
thenthetransaxleisconsideredpurged.
3.Checktheoillevelintheexpansionreservoironelast
time.AddthespeciedoilasuntilitreachestheFULL
COLDlineontheexpansionreservoirifnecessary.
MowerMaintenance
ServicingtheCuttingBlades
Maintainsharpbladesthroughoutthecuttingseasonbecause
sharpbladescutcleanlywithouttearingorshreddingthegrass
blades.Tearingandshreddingturnsgrassbrownattheedges,
whichslowsgrowthandincreasesthechanceofdisease.
Checkthecutterbladesdailyforsharpness,andforany
wearordamage.Filedownanynicksandsharpenthe
bladesasnecessary.Ifabladeisdamagedorworn,replace
itimmediatelywithagenuineTororeplacementblade.For
convenientsharpeningandreplacement,youmaywantto
keepextrabladesonhand.
WARNING
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownintotheoperator's
orbystander'sarea,resultinginseriouspersonal
injuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
BeforeInspectingorServicingthe
Blades
Parkthemachineonalevelsurface,disengagetheblade
controlswitch,andmovethemotioncontrolleversoutward
totheparkposition.Stoptheengineandremovethekey.
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily—Checkthe
cuttingblades.
1.Inspectthecuttingedges(Figure48).Iftheedges
arenotsharporhavenicks,removeandsharpenthe
blades;refertoSharpeningtheBlades.
2.Inspecttheblades,especiallythecurvedarea
(Figure48).Ifyounoticeanydamage,wear,oraslot
forminginthisarea(item3inFigure48),immediately
installanewblade.
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