Maintenance
17
Sharpening the Blade(s)
1. Use a file to sharpen the cutting edge at both ends of
the blade (Fig. 21). Maintain the original angle. The
blade retains its balance if the same amount of
material is removed from both cutting edges.
1
Figure 21
1.
Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 22). 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
2
Figure 22
1.
Blade
2.
Balancer
Installing the Blade(s)
1. Install the washer, blade, flat washer, and the blade nut
(Fig. 23).
Important
The curved part of the blade must be
pointing up to ensure proper cutting.
2. Tighten the blade nut to 80-100 ft–lb (109-136 Nm).
1
2
3
4
5
Figure 23
1.
Nut
2.
Flat washer, thick
3.
Blade
4.
Washer, thin
5.
Spindle
