Toro 22197 - Toro Mower Blade Maintenance; Maintaining the Cutting Blade; Inspecting the Blade

BladeMaintenance
MaintainingtheCuttingBlade
Alwaysmowwithasharpblade.Asharpbladecuts
cleanlyandwithouttearingorshreddingthegrassblades.
1.Stoptheengineandwaitforallmovingpartstostop.
2.Disconnectthewirefromthesparkplug.
3.Drainthegasolinefromthefueltank;referto
EmptyingtheFuelTankandCleaningtheFuelFilter.
4.Tipthemowerontoitsrightside(
Figure28).
Figure28
1.Blade3.Accelerator
2.Bladeboltandlockwasher
InspectingtheBlade
ServiceInterval:Beforeeachuseordaily
Carefullyexaminethebladeforsharpnessandwear,
especiallywheretheatandthecurvedpartsmeet
(Figure29A).Becausesandandabrasivematerialcan
wearawaythemetalthatconnectstheatandcurved
partsoftheblade,checkthebladebeforeusingthe
lawnmower.Ifyounoticeaslotorwear(Figure29B
and
Figure29C),replacetheblade;refertoRemoving
theBlade.
Figure29
1.Sail
3.Wear
2.Flatpartoftheblade4.Slotformed
Note:Forthebestperformance,installanewblade
beforethecuttingseasonbegins.Duringtheyear,le
downanysmallnickstomaintainthecuttingedge.
DANGER
Awornordamagedbladecanbreak,andapiece
ofthebladecouldbethrownintotheoperator’s
orbystander’sarea,resultinginseriouspersonal
injuryordeath.
•Inspectthebladeperiodicallyforwearor
damage.
•Replaceawornordamagedblade.
RemovingtheBlade
Grasptheendofthebladeusingaragorathickly
paddedglove.Removethebladebolt,thelockwasher,
theaccelerator,andtheblade(Figure28).
SharpeningtheBlade
Filethetopsideofthebladetomaintainitsoriginal
cuttingangle(Figure30A)andinnercuttingedgeradius
(Figure30B).Thebladewillremainbalancedifyou
removethesameamountofmaterialfrombothcutting
edges.
Figure30
1.Sharpenatthisangleonly.
2.Maintaintheoriginalradius
here.
BalancingtheBlade
1.Checkthebalanceofthebladebyplacingthecenter
holeofthebladeoveranailorscrewdrivershank
clampedhorizontallyinavise(
Figure31).
Figure31
Note:Youcanalsocheckthebalanceusinga
commerciallymanufacturedbladebalancer.
2.Ifeitherendofthebladerotatesdownward,lethat
end(notthecuttingedgeortheendnearthecutting
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