Helpful Suggestions; Knife Care - Challenge CHAMP 150 Operator's Manual

which results in shorter knife blade life. A knife with a 23° bevel angle, on the other hand, will not dull
as easily, and can provide satisfactory results when cutting most types of paper. Knives shipped with
the CHAMP 150 from the factory have a bevel angle of 23°.

7.3.4 Helpful Suggestions


It may be beneficial to have multiple sets of knives on hand – one set beveled at 21° and the
other at 23°. Note: A set consists of 3 knives: one in the machine, one as a backup, and
one at the grinder.

If the machine seems to strain but the cut quality is still good, reduce the pile height. You
may also carefully apply glycerin to the bevel when cutting hard, coated paper. Tie a cloth to
the end of a stick; dip the stick in glycerin, and apply. Never apply by hand! In lieu of
glycerin you may lightly rub white bar soap along the bevel. Lubrication will prolong the life of
your machine and reduce maintenance.

7.3.5 Knife Care


To prevent corrosion, knives are coated with light oil. It should be REMOVED WITH CARE.

While removing or installing a knife, be careful not to allow the edge to bump against the
machine. Nicks will result.

If a knife bolt is damaged, replace it.

Always keep knife bolts securely tightened.

Always use the heavy-duty knife bolt washers provided by Challenge. Failure to do so could
result in scratching or marring of the clamp face.

Store knives in a dry environment to prevent corrosion.

Never attempt to service a knife in any way.
F.150CH-O-A Page 23
7.0 Knife Installation/Changing
June 2023