Knife Tips; Lubrication - Challenge CHAMPION 370 TC Instructions And Parts Manual

8.0 Maintenance Guide
The following suggestions apply to those who can support only one set of knives. The bevel angle on
the knives shipped with your machine was chosen for its versatility. It is not the ideal angle for every
material, but these suggestions may improve the cut quality for those materials being cut with an
inappropriate bevel:

First, cut the softest, most pure stocks at lower clamping pressures.

Move to the harder, more pure stocks at higher pressures. You may also need to reduce pile
heights.

Softer, impure stocks are next, followed by the hard impure stocks.
Following these guidelines will decrease the frequency of knife sharpening while maintaining a quality
cut as long as possible.
Suggestions for all:

If the machine seems to strain and cut quality is still good, reduce the pile height. You may
also carefully apply glycerin to the bevel when cutting hard, coated stocks. 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.

If the machine seems to strain and cut quality becomes unacceptable, the knife should be
changed.

Typical bevel angles vary from 26
(23 0 ) was chosen for your machine. If your most common applications warrant a different
angle, careful thought should be given before making the investment.

8.1.6 Knife Tips


To prevent corrosion you received your knife 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.

8.2 Lubrication

A clean, lubricated machine will cut more accurately, run longer, with less downtime, and fewer
repairs.
Schedule lubrication maintenance early in the day. This allows the lubricants to work into the
machine. Lubrication at the end of the day allows the lubricants to run off without any benefit to the
machine. Clean off old, dirty excess grease. Wipe accumulated dust off valves, hoses, and
connections. Built up dust increases operating temperatures and causes premature wear of all
hydraulic components.
Oil and Grease Points WEEKLY.
30
0 to 19 0 . The most appropriate general-purpose bevel angle