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SECTION7: SERVICINGYOURMOWER
BladeCare
Periodically inspect the blade adapter and pulley for
cracks, especially if you strike a foreign object. Replace
when necessary.
_ WARNING: When removing the cutting
blade for sharpening or replacement, protect
hands by using heavy gloves or a thick rag to
grasp the cutting blade.
Disconnect spark plug wire from spark plug.
Turn mower on its side making sure that the air filter
and the carburetor are up.
Remove the bolt and blade support which hold the
blade and adapter to the engine crankshaft. See
Figure 13. Remove the blade and the adapter from
the crankshaft.
Blade Adapter
Blade
Blade
Setl
Support
1-_ Hex Bolt
Figure 13
TOSharpenBlade:
• The blade can be sharpened with a file or on a
grinding wheel. Do not attempt to sharpen the
blade while it is still on the mower.
• Follow the originalangle of grindas a guide. Make
sure that each cuttingedge receives an equal
amount of grinding to prevent an unbalanced blade.
NOTE: An unbalanced blade will cause excessive
vibration when rotating at high speeds, may cause
damage to the mower and could break causing
personal injury.
The blade can be tested by balancing it on a round
shaft screwdriver. See Figure 14. Remove metal
from the heavy side until it balances evenly. It is
recommended that the blade always be removed
from the adapter for the best test of balance.
1.Insert screwdriver through hole
2. Blade shouldbe parallelto ground
Screw
Driver _ _, Blade
_1 o ,ol--
Ground
Figure 14
• Before reassembling the blade and the blade
adapter tothe unit, lubricate the engine crankshaft
and the inner surface ofthe blade adapter with light
oil(or engine oil). Also lubricate the bolt holes, bolts
and inner surface of the nuts.
• Install the blade adapter on the crankshaft with the
"star" away from the engine. Refer to Figure 13.
Place the blade with the side marked bottom (or
with part number) facing away from the adapter.
• Align the blade bell support over the blade with the
tabs in the holes of the blade and insert the hex
bolt. Tighten the hex bolt to the torque listed in the
"Blade Mounting Torque" section below.
BladeMountingTorque
Center Bolt: 450 in. Ibs.min., 600 in. lbs. max.
IMPORTANT:Toensure safe operation, all nuts and
bolts must be checked periodically for correct tightness.
ReplacingRearFlap
• To remove rear flap, cut off the flat end of the wire
rod which secures it to the deck. See Figure 15.
• Attach the new flap and new rod to deck, bending
the ends of the new rod over to secure to deck.
Rear Discharge
Handle Door
_X
Bracket \
\
\
\
\
Handle
\ Bracket
Rear Rap
Figure 15
13
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