Owner manual

Page 29 of 48
11. Reset the downstroke cover(s) in position and tighten in place
with the downstroke cover screws, which were removed in
Step 2. Make sure that the safety switch interlock screw sets
the safety switch actuator arm into the correct position to set
the switch.
12. Replace the line fuses, unlock the power, and turn the Main
Power switch to On.
6-2-3 Knife Sharpening
6.2.3.a. Rotor Knife Sharpening
The rotor knife can be re-sharpened to the diagram below. The
three knives must be sharpened to within 0.003” (0.076 mm) of
each other. Greater dimensional variations will cause difficulty
when setting the knife gap and create other serious complications.
When sharpening the rotor knives, it is not harmful to allow a few
small nicks to remain in the cutting edge. Grinding the cutting edge
until perfectly clean can sometimes be wasteful.
Do not install rotor knives that are smaller than the minimum
dimensions shown because the fasteners that secure these knives
will interfere with the cutting circle. The rotor may not be able to
turn, and the bed knives will be damaged.
6.2.3.b. Bed Knife Sharpening
Each bed knife is provided with two cutting edges. When the
exposed edges become blunt, the knives can be turned and
repositioned to present the new cutting edges. When re-sharpening
is necessary, refer to Figure 7.
It is not necessary to grind bed knives to the closely matched
tolerance of rotor knives, and as with the rotor knives, small nicks
in the cutting edges will not seriously affect knife cutting
efficiency. Bed knives smaller than the minimum dimensions
shown must be replaced along with the fasteners that secure them.