Toro 30857N - Servicing the Cutter Blade

ServicingtheCutterBlade
RemovingtheCutterBlade
Theblademustbereplacedifasolidobjectishit,theblade
isoutofbalance,orifthebladeisbent.Alwaysusegenuine
Tororeplacementbladestobesureofsafetyandoptimum
performance.Neverusereplacementbladesmadebyother
manufacturersbecausetheycouldbedangerous.
1.Raisethecuttingdecktothehighestposition,shutthe
engineoff,andengagetheparkingbrake.Blockthe
cuttingdecktopreventitfromfallingaccidentally.
2.Grasptheendofthebladeusingaragorthickly
paddedglove.Removethebladebolt,anti-scalpcup,
andbladefromthespindleshaft(Figure62).
G01 1355
1
2
Figure62
1.Bladebolt2.Anti-scalpcup
3.Installtheblade,sailfacingtowardthecuttingdeck,
withtheanti-scalpcupandbladebolt(Figure62).
Tightenbladeboltto115–149N-m(85–110ft-lb).
DANGER
Awornordamagedbladecanbreak,anda
pieceofthebladecouldbethrownintothe
operator’sorbystander’sarea,resultingin
seriouspersonalinjuryordeath
•Inspectthebladeperiodicallyforwearor
damage.
•Neverweldabrokenorcrackedblade.
•Alwaysreplaceawornordamagedblade.
InspectingandSharpeningtheBlade
1.Raisethecuttingdecktothehighestposition,shutthe
engineoff,andengagetheparkingbrake.Blockthe
cuttingdecktopreventitfromfallingaccidentally.
2.Examinethecuttingendsofthebladecarefully,
especiallywheretheatandcurvedpartsoftheblade
meet(Figure63).Sincesandandabrasivematerialcan
wearawaythemetalthatconnectstheatandcurved
partsoftheblade,checkthebladebeforeusingthe
machine.Ifwearisnoticed(Figure63),replacethe
blade;refertoRemovingtheCutterBlade.
DANGER
Ifthebladeisallowedtowear,aslotwillform
betweenthesailandatpartoftheblade
(Figure63).Eventuallyapieceoftheblade
maybreakoffandbethrownfromunderthe
housing,possiblyresultinginseriousinjuryto
yourselforbystanders.
•Inspectthebladeperiodicallyforwearor
damage.
•Alwaysreplaceawornordamagedblade.
Figure63
1.Cuttingedge3.Wear/slot/crack
2.Sail
3.Inspectthecuttingedgesofallblades.Sharpenthe
cuttingedgesiftheyaredullornicked.Sharpenonly
thetopofthecuttingedgeandmaintaintheoriginal
cuttingangletomakesureofsharpness(Figure64).
Thebladewillremainbalancedifthesameamountof
metalisremovedfrombothcuttingedges.
Figure64
1.Sharpenatthisangleonly
4.Tocheckthebladeforbeingstraightandparallel,lay
thebladeonalevelsurfaceandcheckitsends.The
endsoftheblademustbeslightlylowerthanthecenter,
andthecuttingedgemustbelowerthantheheelofthe
blade.Thisbladewillproducegoodqualityofcutand
requireminimalpowerfromtheengine.Bycontrasta
bladethatishigherattheendsthanthecenter,orif
cuttingedgeishigherthantheheel,thebladeisbentor
warpedandmustbereplaced.
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