Toro TimeCutter Z5020 74372 - Mower Maintenance: Blades; Servicing Cutting Blades; Checking for Bent Blades

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,andmovethemotioncontrolleversto
thebrakeposition.Stoptheengine,removethekey,and
disconnectthesparkplugwire(s)fromthesparkplug(s).
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily—Checkthe
cuttingblades.
1.Inspectthecuttingedges(Figure34).Iftheedges
arenotsharporhavenicks,removeandsharpenthe
blades;refertoSharpeningtheBlades.
2.Inspecttheblades,especiallythecurvedarea
(Figure34).Ifyounoticeanydamage,wear,or
aslotforminginthisarea(item3inFigure34),
immediatelyinstallanewblade.
Figure34
1.Cuttingedge3.Wear/slotforming
2.Curvedarea
CheckingforBentBlades
1.Rotatethebladesuntiltheendsfaceforwardand
backward(Figure35).Measurefromalevelsurface
tothecuttingedge,position1.5,oftheblades
(Figure35).Notethisdimension.
G005277
A
A
A
Figure35
2.Rotatetheoppositeendsofthebladesforward.
3.Measurefromalevelsurfacetothecuttingedgeof
thebladesatthesamepositionasinstep1.The
differencebetweenthedimensionsobtainedinsteps
1and2mustnotexceed1/8inch(3mm).Ifthis
dimensionexceeds1/8inch(3mm),thebladeis
bentandmustbereplaced.RefertoRemovingthe
BladesandInstallingtheBlades.
Abladethatisbentordamagedcouldbreak
apartandcouldseriouslyinjureorkillyouor
bystanders.
•Alwaysreplacebentordamagedbladewith
anewblade.
•Neverleorcreatesharpnotchesinthe
edgesorsurfacesofblade.
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