Exmark Quest Lawn Mower - Sharpening Blades; Removing the Blades

Maintenance
Figure39
1.Bladesfronttorear
3.Measurehere
2.Outsidecuttingedges
2.Rotatetheoppositeendsofthebladesforward.
3.Measurefromalevelsurfacetothecuttingedge
ofthebladesatthesamepositionasinstep1.
Thedifferencebetweenthedimensionsobtained
insteps1and3mustnotexceed1/8inch(3
mm).Ifthisdimensionexceeds1/8inch(3mm),
thebladeisbentandmustbereplaced.Refer
toRemovingtheBladesandInstallingthe
Blades.
WARNING
Abladethatisbentordamagedcouldbreak
apartandcouldseriouslyinjureorkillyou
orbystanders.
•Alwaysreplacebentordamagedblade
withanewblade.
•Neverleorcreatesharpnotchesinthe
edgesorsurfacesofblade.
CheckingforLooseBladesor
DamagedSpringDiscWashers
1.Placeawrenchonthebladeboltandtorqueto
32-42ftlb(43-57N-m).
2.Withthewrenchstillonthebladebolt,holdthe
bladespindlestationaryandusingaragorthickly
paddedglove,trytorotatetheblade.Iftheblade
rotatesrelativetothespindleguardwithout
furthertighteningthebladebolt,thespring
discwasherhasbeenattenedordamagedand
theboltandwasherassemblymustbereplaced
(Figure40).RefertoRemovingtheBladesand
InstallingtheBlades.
3.Oncethebladehasbeenremoved,inspectthe
springdiscwasher.Ifthewasherappearstobe
damaged(thewashersurfacehasbeenmarred)
orattened,theboltandwasherassemblymust
bereplaced.
RemovingtheBlades
Thebladesmustbereplacedifasolidobjectishit,if
thebladeisoutofbalance,orthebladeisbent.To
ensureoptimumperformanceandcontinuedsafety
conformanceofthemachine,usegenuineExmark
replacementblades.Replacementbladesmadeby
othermanufacturersmayresultinanunsafemachine.
Holdthebladeendusingaragorthickly-padded
glove(orplaceawrenchonthetopsheavenut).
Removethebladeboltandwasherassembly,washer,
andbladefromthespindleshaft(Figure40).
Figure40
1.Blade
2.Washer
3.Boltandwasherassembly.Applylubricantto
threads—torqueto32-42ft-lb(43-57N-m).
SharpeningtheBlades
1.Usealetosharpenthecuttingedgeatbothends
oftheblade(Figure41).Maintaintheoriginal
angle.Thebladeretainsitsbalanceifthesame
amountofmaterialisremovedfrombothcutting
edges.
40