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Blade Care
_
ARNING:Whenremovingcuttingblade
for sharpeningor replacement,protectyour
handswith a pairof heavygloves or use a heavyrag
to holdblade.
1. Disconnectsparkplug wirefrom spark plug.Turn
moweron its side makingsurethat the air filter and
the carburetorare up.
2. Removebolt, bell blade support,blade,and blade
adapterfrom the enginecrankshaft.See Figure5-3.
3. The bladecan be sharpenedwith a fileor on a
grindingwheel. Donot attemptto sharpenthe blade
while it is still on the mower.Whensharpeningblade,
followoriginal angleof grind. Removemetalfrom the
heavy sideand grind cuttingedgesequallyto keep
blade balanced.Balancethe blade on a round shaft
screwdriverto checkfor balance.
_
ARNING:An unbalanced blade will cause
excessivevibrationwhen rotating at high
speeds.It may causedamageto mower,and could
break causingpersonal injury.
4. Lubricatetheenginecrankshaftand the inner surface
of the blade adapterwith lightoil. Slide the blade
adapteronto the enginecrankshaft.Placethe blade
on theadaptersuch that the sideof the blade marked
"Bottom"(or with part number)facesthe groundwhen
the mowerisin the operatingposition.Makesurethat
blade is alignedand seatedon bladeadapterflanges.
5. Placeblade bell supporton the blade.Align notches
on the bladebell supportwith smallholesin blade.
Replacehex boltand tightenhex boltto torque:450
in.Ibs. rain.,600 in.Ibs.max.
Toensuresafe operationof yourmower,periodically
checkthe blade boltfor correcttorque.
Changing
the Belt
1. Removetwo shoulderscrewssecuringfrontdrive
cover to mowerdeck.Referto Figure5-4. Press
inwardon sides of front drivecoverand releasetabs
that secureitto the heightadjusterbrackets.Remove
drivecover from mower.
.
.
.
Loosenscrewholdingbelttensionspringto
transmission.See Figure5-4. Do not removescrew
completely.As youloosen it, tensionon the belt will be
released.
Pushtransmissionup a little and slidebelt off the
transmissionpulley.Lift mowerto access beltfrom
undersideof mower.Slide beltoff of enginepulleyand
aroundthe blade.See Figure5-5.
Replacewith newbelt, workingaroundblade.Make
sure belt isfirmly seatedon enginepulleywhilepulling
from the othersideand slidingit aroundthetransmis-
sion pulley.Tightenscrewloosenedearlierto secure
belt tensionspringto the transmission. R eassemble
front drivecover.
f
J
Figure 5-3:Remove b lade andrelated hardware.
Figure 5-4:Remove c over andloosen transmission screw.
f
Figure 5-5:Remove b eltfromaround blade.
WARNING
When removing
the cutting blade
for sharpening or
replacement or
when sliding the belt
around it, protect
your hands with a
pair of heavy gloves
or use a heavy rag to
hold the blade.
An unbalanced blade
will cause excessive
vibration when rotat=
ing at high speeds. It
may cause damage
to mower, and could
break causing per-
sonal injury.
11
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