Toro 74538 - Mower Deck Maintenance; Servicing the Cutting Blades

MowerDeck
Maintenance
ServicingtheCuttingBlades
Toensureasuperiorqualityofcut,keeptheblades
sharp.Forconvenientsharpeningandreplacement,you
maywanttokeepextrabladesonhand.
WARNING
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownintotheoperator’s
orbystander’sarea,resultinginseriouspersonal
injuryordeath.
•Inspectthebladesperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
BeforeInspectingorServicingthe
Blades
Parkthemachineonalevelsurface,disengagetheblades
andsettheparkingbrake.Turntheignitionkeytooff.
Removethekeyanddisconnectthesparkplugwires
fromthesparkplugs.
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily
1.Inspectthecuttingedges(Figure78).Iftheedges
arenotsharporhavenicks,removeandsharpenthe
blades.RefertoSharpeningtheBlades.
2.Inspecttheblades,especiallythecurvedarea.Ifyou
noticeanycracks,wear,oraslotforminginthisarea
immediatelyinstallanewblades(
Figure78).
Figure78
1.CuttingEdge3.Wear/slotForming
2.CurvedArea4.Crack
CheckingforBentBlades
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Rotatethebladesuntiltheendsfaceforwardand
backward.Measurefromalevelsurfacetothe
cuttingedge,positionA,oftheblades(Figure79
).Notethisdimension.
Figure79
1.Measureherefromblade
tohardsurface
2.PositionA
4.Rotatetheoppositeendsofthebladesforward.
5.Measurefromalevelsurfacetothecuttingedgeof
thebladesatthesamepositionasinstep3above.
Thedifferencebetweenthedimensionsobtainedin
steps3and4mustnotexceed1/8inch(3mm).If
thisdimensionexceeds1/8inch(3mm),theblade
isbentandmustbereplaced;refertoRemovingthe
BladesandInstallingtheBlades.
WARNING
Abladethatisbentordamagedcouldbreak
apartandcouldseriouslyinjureorkillyouor
bystanders.
•Alwaysreplacebentordamagedbladewith
anewblade.
•Neverleorcreatesharpnotchesinthe
edgesorsurfacesofblade.
RemovingtheBlades
Bladesmustbereplacedifasolidobjectishit,ifthe
bladeisoutofbalanceorisbent.Toensureoptimum
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