Toro 74391 - Mower Deck Service

MowerMaintenance
ServicingtheCuttingBlades
Maintainsharpbladesthroughoutthecuttingseason
becausesharpbladescutcleanlywithouttearingor
shreddingthegrassblades.Tearingandshreddingturns
grassbrownattheedges,whichslowsgrowthand
increasesthechanceofdisease.
Checkthecutterbladesdailyforsharpness,andforany
wearordamage.Filedownanynicksandsharpenthe
bladesasnecessary.Ifabladeisdamagedorworn,
replaceitimmediatelywithagenuineTororeplacement
blade.Forconvenientsharpeningandreplacement,you
maywanttokeepextrabladesonhand.
Awornordamagedbladecanbreak,anda
pieceofthebladecouldbethrownintothe
operator’sorbystander’sarea,resultingin
seriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
BeforeInspectingorServicingthe
Blades
Parkthemachineonalevelsurface,disengagetheblade
controlswitch,andmovethemotioncontrollevers
outwardtotheparkposition.Stoptheengineand
removethekey.
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily—Checkthe
cuttingblades.
1.Inspectthecuttingedges(Figure38).Iftheedges
arenotsharporhavenicks,removeandsharpenthe
blades;refertoSharpeningtheBlades.
2.Inspecttheblades,especiallythecurvedarea
(Figure38).Ifyounoticeanydamage,wear,or
aslotforminginthisarea(item3inFigure38),
immediatelyinstallanewblade.
Figure38
1.Cuttingedge3.Wear/slotforming
2.Curvedarea
CheckingforBentBlades
1.Raisetheheight-of-cutlevertothetransport
position,cuttingheightpositionG(alsothe
4-1/2inch[115mm]).
2.Rotatethebladesuntiltheendsfaceforwardand
backward(Figure39).Measurefromalevelsurface
tothecuttingedge,positionA,oftheblades
(Figure39).Notethisdimension.
G005277
A
A
A
Figure39
3.Rotatetheoppositeendsofthebladesforward.
4.Measurefromalevelsurfacetothecuttingedgeof
thebladesatthesamepositionasinstep2.The
differencebetweenthedimensionsobtainedinsteps
2and3mustnotexceed1/8inch(3mm).Ifthis
dimensionexceeds1/8inch(3mm),thebladeis
bentandmustbereplaced.RefertoRemovingthe
BladesandInstallingtheBlades.
Note:Ifabentbladeisreplacedwithanewoneand
thedimensionobtainedcontinuetoexceed1/8inch
(3mm),thebladespindlecouldbebent.Contactan
AuthorizedToroDealerforservice.
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