Product Manual

21
Figure 13 Tightening the Mower Blade for Installation
A. Mower Blade Mounting Bolt
B. Flat Washer
C. Mower Blade Air Lift (Points Up For Installation)
D. 4 X 4 Wooden Block
A
B
Figure 11. Sharpening the Mower Blade
A. Mower Blade Bevel
B. Mower Blade Cutting Edge
Figure 12. Balancing the Mower Blade
A. Nail
A
D
A
B
C
REGULAR MAINTENANCE
Sharpening the Mower Blade
1. Sharpen the mower blade with grinder, hand file or
electric blade sharpener.
2. Sharpen the mower blade by removing an equal
amount of material from each end of the mower
blade.
3. Keep the original bevel (A, Figure 11) when
grinding. Do not change the mower blade bevel.
4. The mower blade should have a maximum 1/64”
(0,40 mm) cutting edge (B) or less.
5. Balance the mower blades before installing.
Balancing the Mower Blades
1. Clean the mower blade to remove any dried grass
or other debris.
2. See Figure 12. Put the mower blade on a nail in
a vise and turn the mower blade to the horizontal
position.
3. Check the balance of the mower blade. If either
end of the mower blade moves downward,
sharpen the heavy end until the mower blade is
balanced.
4. Repeat the process until the mower blade remains
in the horizontal position.
Reinstalling the Mower Blades.
1. Wedge a wooden block between the mower blade
and the mower deck housing to keep the mower
blade from turning.
2. Reinstall each mower blade with the air lifts
pointing up towards the mower deck as shown in
Figure 13. Secure with the mower blade mounting
bolt and flat washer (A & B, Figure 13) and torque
to 70 ft. lbs (94 Nm).
WARNING
Avoid injury! Mower blades are
sharp.
• Always wear gloves when handling mower blades
or working near blades.
• Always wear safety eye protection when grinding.
WARNING
Avoid injury! Keep mower blades
balanced.
An unbalanced mower blade can create excessive
vibration and damage the unit or cause mower
blade failure.
Not for
Reproduction