Toro 74939 - Inspecting the Blades; Removing the Blades

DANGER
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownintotheoperator's
orbystander'sarea,resultinginseriouspersonal
injuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
InspectingtheBlades
ServiceInterval:Beforeeachuseordaily
Beforeinspectingorservicingtheblades,Parkthe
machineonalevelsurface,disengagethebladecontrolswitch
(PTO),andsettheparkingbrake.Turntheignitionkeyto
Off.Removethekey.
1.Inspectthecuttingedges(Figure95).Iftheedges
arenotsharporhavenicks,removeandsharpenthe
blades.RefertoRemovingtheBlades(page58).
2.Inspecttheblades,especiallythecurvedarea(Figure
95).Ifyounoticeanydamage,wear,oraslotforming
inthisarea(Figure95),immediatelyinstallanewblade.
Figure95
1.Cuttingedge3.Wear/slotforming
2.Curvedarea4.Crack
CheckingforBentBlades
1.Disengagethebladecontrolswitch(PTO),movethe
motioncontrolleverstotheneutrallockedposition
andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Rotatethebladesuntiltheendsfaceforwardand
backward(Figure96).
Note:Measurefromalevelsurfacetothecutting
edge,positionA,oftheblades(Figure96).Notethis
dimension.
Figure96
1.Measureherefromblade
tohardsurface
2.PositionA
4.Rotatetheoppositeendsofthebladesforward.
5.Measurefromalevelsurfacetothecuttingedgeofthe
bladesatthesamepositionasinstep3above.
Note:Thedifferencebetweenthedimensions
obtainedinsteps3and4mustnotexceed3mm
(1/8inch).Ifthisdimensionexceeds3mm(1/8inch),
thebladeisbentandmustbereplaced;referto
RemovingtheBlades(page58)andInstallingthe
Blades(page59).
WARNING
Abladethatisbentordamagedcouldbreak
apartandcouldseriouslyinjureorkillyouor
bystanders.
•Alwaysreplacebentordamagedblade
withanewblade.
•Neverleorcreatesharpnotchesinthe
edgesorsurfacesofblade.
RemovingtheBlades
Bladesmustbereplacedifasolidobjectishit,ifthebladeis
outofbalanceorisbent.Toensureoptimumperformance
andcontinuedsafetyconformanceofthemachine,use
genuineTororeplacementblades.Replacementbladesmade
byothermanufacturersmayresultinnon-conformancewith
safetystandards.
1.Holdthebladeendusingaragorthickly-paddedglove.
2.Removethebladebolt,curvedwasher,andbladefrom
thespindleshaft(
Figure97).
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