7.0 Knife Installation/Changing
22
Figure 18
14. Plug in the power cord and switch power on. And move the Knife Adjust Switch to the Run mode.
15. Close the front shield and push both cut buttons. This will raise the knife and clamp to the up
position.
16. Switch power off and disconnect the power cord.
17. Tighten all knife bolts securely.
18. Plug in the power cord and switch power on. Make a test cut through a full lift of paper and make
minor adjustments if necessary by repeating steps 9 through 17.
NOTE:
If the knife ends cut but
the middle does
n’t, you could have dips or uneven spots in the knife and/or cut stick. These can
be eliminated by placing 1/2”/6mm strips of paper in the table slot beneath the cut stick to shim it.
19. Send the dull knife to a knife grinder. Do not attempt to sharpen your own knives! See the Knife
Care Tips Section below to determine the knife bevel angle.
7.3 Knife Care Tips
! KNIFE SAFETY
! Knives are
DANGEROUS!!!
They are heavy and very
sharp, even after use. Keep the edge away from your body and keep the area clear of others when
handling knives. Never touch the cutting edge! To prevent personal injury and damage to the knife,
always keep knives in their holders with screws tightened. You are aware of the dangers, but others
may not be. Never attempt to hone, polish, or service the knife in any way. Failure to follow safety
procedures may result in severe lacerations or dismemberment.
7.3.1 Knife Blade Life
Knife blade life, or the time between sharpening, can be affected by many factors. One important
factor is the type of paper being cut. Abrasive paper, such as recycled paper, soft paper such as
newsprint paper, and bound books can all significantly shorten knife blade life. Also, if the knife depth
is set too deep, the knife will cut too deep into the cutting stick and can dull the knife blade.
A knife can last between 2,000 and 5,000 cuts before it needs to be sharpened. Cutting soft paper
(such as newsprint paper) or paper with high post-consumer recycled content can cause the knife to
need sharpening after only 2,000 to 3,000 cuts. Cutting pure paper, such as bond paper with no
