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Sharpening the Blade(s)
1.
Use a file to sharpen the cutting edge at both
ends of the blade (Fig. 25). Maintain the original
angle. The blade retains its balance if the same
amount of material is removed from both cutting
edges.
1
Figure 25
1. Sharpen at original angle
2.
Check the balance of the blade by putting it on a
blade balancer (Fig. 26). If the blade stays in a
horizontal position, the blade is balanced and can
be used. If the blade is not balanced, file some
metal off the back side of the blade. Repeat this
procedure until the blade is balanced.
1
Figure 26
1. Blade
2
2. Balancer
Installing the Blade(s)
1.
Install the washer, blade, flat washer, and the
blade nut (Fig. 27).
IMPORTANT: The curved part of the blade
must be pointing toward the inside of the
mower to assure proper cutting.
2.
Tighten the blade nut to 80-100 ft–lb
(109-136 Nm).
5
2
1
Figure 27
1. Nut
2. Flat washer – thick
3. Blade
Maintenance
4
3
4. Washer – thin
5. Spindle
15
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