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14
SECTION 8: SERVICING THE MOWER
Replacing Rear Flap
• To remove rear flap, cut off the flat end of the wire
rod which secures it to the deck. See Figure 17.
• Attach the new flap and new rod to deck, bending
the ends of the new rod over to secure to deck.
Figure 17
Blade Care
Periodically inspect the blade adapter for cracks,
especially if you strike a foreign object. Replace when
necessary.
Removing the 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 the blade bell support which
hold the blade and the blade adapter to the engine
crankshaft. See Figure 18.
• Remove the blade and the adapter from the
crankshaft.
Figure 18
Sharpening the Blade
• 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 original angle of grind as a guide. Make
sure that each cutting edge receives an equal
amount of grinding to prevent an unbalanced blade.
Balancing the Blade
• The blade can be tested by balancing it on a round
shaft screwdriver. Remove metal from the heavy
side until it balances evenly. It is recommended that
the blade always be removed from the adapter
when testing for balance.
Installing the Blade
• Before reinstalling the blade and the blade adapter
to the unit, lubricate the engine crankshaft and the
inner surface of the blade adapter with light oil.
• Be sure to install the blade with the side of the
blade marked “Bottom” (or with part number) facing
the ground when the mower is in the operating
position.
• Slide the blade adapter onto the engine crankshaft.
• Place the blade on the adapter. Be certain the
blade is aligned and seated on the blade adapter
flanges.
• Place blade bell support on blade. Make sure the
notches on the blade bell support are aligned with
small holes in the blade.
• Replace hex bolt and tighten hex bolt to torque: 450
in. lbs. min., 600 in. lbs. max.
NOTE: To ensure safe operation of your mower,
periodically check the blade bolt for correct torque.
WARNING: When removing the cutting
blade for sharpening or replacement, protect
your hands with a pair of heavy gloves or use a
heavy rag to hold the blade.
Handle
Bracket
Handle
Bracket
W
i
r
e
R
o
d
Rear Discharge
Door
Rear Flap
Blade
Hex Bolt
Blade Bell
Adapter
Support
WARNING: An unbalanced blade will cause
excessive vibration when rotating at high
speeds. It may cause damage to the mower,
and could break causing personal injury.