Instruction Manual

REVISION 9/04 BJF
37
SETTINGS AND ADJUSTMENTS
SECTION 4-7
Adjusting or Replacing Bed Knives
MEASURE THE KNIFE GAP
If you are changing the rotor knives, do so now, otherwise
continue with this procedure
.
Use brass shim stock to set the knife gap to the cutting
clearance of 0.006 in. to 0.008 in. (0.15 mm to 0.20 mm).
Remove the rotor-locating pin. (See page 4.3)
Rotate the rotor backward, by hand, and measure the
gap between it and the bed knife at the point of shear. You
can work on each half of the bed knife independent of the
other half but keep them in step with each other by working
from side-to-side.
SET THE DOWNS1ROKE KNIFE SHIELD
Position the knife-shield so that it sets back from the
bed knife-edge about 1/32 in. for film and 1/16 in. for
thicker materials. Use a plastic or leather mallet, if
necessary, to tap the shield or knife.
The upstroke knife clamp does not need this
adjustment, and snug down the mounting screws with a 30
mm socket wrench.
Carefully adjust the bed knife clearance to its final
setting.
CHECK THE KNIFE GAP
Snug the screws down in stages keeping them about even as you progressively tighten them.
Recheck the knife gap after snugging down the mounting screws. )
After setting up to one rotor knife (usually the highest knife), rotate the remaining knives
slowly by the bed knife and quickly verify the knife gap.