Instruction Manual

REVISION 9/04 BJF
36
SETTINGS AND ADJUSTMENTS
SECTION 4-6
Adjusting or Replacing Bed Knives
REPLACE THE DOWNSTROKE BED KNIFE
Install the down-stroke bed knife (located on the
near side of the rotor) making sure to install it with the
knife-edge on the upper side
.
Back off the bed knife push screws at the rear of
the knife.
Repeat these steps for the second half of the down-
stroke knife.
REPLACE THE DOWNSTROKE KNIFE
SHEILDS
Place the shields over the bed knife.
Install the mounting screws and washers and
tighten them finger-tight.
CHECK THE BED KNIVES
Check both halves of the upstroke knife (the bed knife on the far side of the rotor) to be
sure that the cutting edges face down.
Check both halves of the down-stroke knife (the bed knife on the near side of the rotor) to
be sure that the cutting edges face up.
GAP ADJUSTMENT TIPS
It is best to keep the adjustments on the bed knife push screws moving in the same
direction. This eliminates the effect of backlash in the adjusting screw.
Make the screw adjustments in small steps to keep the bed knife adjustment even over the
width of the machine.
To avoid cutting the shim stock, turn the rotor backward during the adjustment procedure.
Use the rotor knife with the largest dimension from rotor centerline as the reference, i.e.,
the highest knife.