Toro 22178 - Blade Maintenance; Maintaining the Cutting Blade; Inspecting the Blade; Sharpening the Blade

BladeMaintenance
MaintainingtheCuttingBlade
Alwaysmowwithasharpblade.Asharpbladecuts
cleanlyandwithouttearingorshreddingthegrassblades.
1.Stoptheengineandwaitforallmovingpartstostop.
2.Disconnectthewirefromthesparkplug(Figure12).
3.Drainthegasolinefromthefueltank;referto
EmptyingtheFuelTankandCleaningtheFuelFilter.
4.Tipthemowerontoitsrightside(Figure33).
Figure33
1.Blade3.Anti-scalpcup
2.Bladenuts
InspectingtheBlade
ServiceInterval:Beforeeachuseordaily
Carefullyexaminethebladeforsharpnessandwear,
especiallywheretheatandthecurvedpartsmeet
(Figure34A).Becausesandandabrasivematerialcan
wearawaythemetalthatconnectstheatandcurved
partsoftheblade,checkthebladebeforeusingthe
mower.Ifyounoticeaslotorwear(Figure34Band
Figure34C),replacetheblade;refertoRemovingthe
Blade.
Figure34
1.Sail
3.Wear
2.Flatpartoftheblade4.Slotformed
Note:Forthebestperformance,installanewblade
beforethecuttingseasonbegins.Duringtheyear,le
downanysmallnickstomaintainthecuttingedge.
Awornordamagedbladecanbreak,anda
pieceofthebladecouldbethrownintothe
operator’sorbystander’sarea,resultingin
seriouspersonalinjuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
RemovingtheBlade
Grasptheendofthebladeusingaragorathickly
paddedglove.Removethebladenuts,theanti-scalpcup,
andtheblade(Figure33).
SharpeningtheBlade
Filethetopsideofthebladetomaintainitsoriginal
cuttingangle(Figure35A)andinnercuttingedgeradius
(Figure35B).Thebladewillremainbalancedifyou
removethesameamountofmaterialfrombothcutting
edges.
Figure35
1.Sharpenatthisangleonly.
2.Maintaintheoriginalradius
here.
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