Exmark Quest 4500-450 - Mower Belt Maintenance; Installing Blades

Maintenance
Figure35
1.Blade
2.Washer
3.Boltandwasherassembly.Applylubricantto
threads—torqueto32-42ft-lb(43-57N-m).
SharpeningtheBlades
1.Usealetosharpenthecuttingedgeatbothends
oftheblade(Figure36).Maintaintheoriginal
angle.Thebladeretainsitsbalanceifthesame
amountofmaterialisremovedfrombothcutting
edges.
Figure36
1.Sharpenatoriginalangle
2.Checkthebalanceofthebladebyputtingitona
bladebalancer(Figure37).Ifthebladestaysina
horizontalposition,thebladeisbalancedandcan
beused.Ifthebladeisnotbalanced,lesome
metalofftheendofthesailareaonly(Figure37).
Repeatthisprocedureuntilthebladeisbalanced.
Figure37
1.Blade2.Balancer
InstallingtheBlades
1.Installthebladeontothespindleshaft(Figure35).
Important:Thecurvedpartoftheblade
mustbepointingupwardtowardtheinsideof
themowertoensurepropercutting.
2.Holdthebladeendusingaragorthickly-padded
glove(orplaceawrenchonthetopsheavenut).
Applylubricanttothethreadsofthebladebolt
asneededtopreventseizing.Copperbased
anti-seizeispreferable.Greaseisanacceptable
substitute.Installthewasherandbladeboltand
washerassembly.
3.Torquethebladeboltto32-42ft-lb(43-57N-m).
WARNING
Incorrectinstallationofthebladeor
componentsusedtoretainthebladecause
thebladetocomelooseandcouldseriously
injureorkillyouorbystanders.
AlwaysinstalltheoriginalExmarkblades,
washersandbladeboltsasshown.
MowerBeltMaintenance
InspectingtheBelts
ServiceInterval:Every25hours/Monthly
(whichevercomesrst)
Checkthebeltsforcracks,frayededges,burnmarks,
oranyotherdamage.Replacedamagedbelts.
ReplacingtheMowerBelt
Squealingwhenthebeltisrotating,bladesslipping
whencuttinggrass,frayedbeltedges,burnmarks,
andcracksaresignsofawornmowerbelt.Replace
themowerbeltifanyoftheseconditionsareevident.
1.Parkthemachineonalevelsurfaceanddisengage
thebladecontrolswitch.
2.Movethemotioncontrolleversoutwardtothe
neutralposition,engageparkingbrake,stopthe
engine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Settheheight-of-cutat1-1/2inch(38mm).
4.For48and52inchdecksonly,removethebelt
coversovertheoutsidespindles.
5.Graspbothbeltstrandsgoingtotheclutch.Pull
themtotherearofthemachineandslipthebelt
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