34
Copyright 3/20
Bandit
MODEL 1425
MAINTENANCE
Beast knives MUST be kept sharp at all times
for the ultimate cutterhead and knife performance.
The main cause of poor cutting performance is dull
knives.
Do not sharpen the knives in a direction which
produces a radius, or hollow grind, on the surface
of the knife. Strength and life of the cutting edge is
reduced.
KNIFE SHARPENING
Only Bandit knives and hardware are
recommended for use in your machine. Only then
can you be assured of a quality product that fi ts and
performs the best to the standards of excellence that
is expected from the machine.
NOTICE
CAUTION
!
- Keep knives sharp.
- Keep knife angle correct when sharpening.
- Do not over sharpen so knife is narrower than allowed
width, or you will pack wood and break knives.
- Use correct knife size, knife quality, knife mounting
hardware, and torque knife mounting hardware to
the specifi ed torque.
- Replace knife mounting hardware after (5) times
of tightening.
NOTICE
-
For maximum cutterhead effi ciency, the original
cutting angle must be maintained when the knives
are sharpened.
- Sharpen Beast knives with a belt sander (part
number: 900-9908-43) equipped with an 80 grit
belt (part number: 900-9908-44) from the bottom
side of the knife as shown in the illustration.
- Do not sharpen knife to a razor sharp edge.
- Always put a slight back grind on all new knives
that are installed. Run the grinder across the
bottom edge of the knife one time to eliminate the
razor sharp edge.
- Knives may be sharpened repeatedly as long
as their original width is not reduced to less than
the specifi ed minimum width. If a knife measures
less than the specified minimum width after
sharpening, it must be discarded.
- Inspect the knives after sharping to ensure the
knives are free of cracks.
- Maintain spare sharpened knives to avoid
downtime for knife sharpening.
These are just a few factors, there are other
situations that can lead to the dulling of knives.
Dull Knives Cause:
-
Excessive waste of engine horsepower
-
Bad quality chips; chunks, slivers, etc.
-
Excessive strain on knives and mounting hardware
-
Excessive strain on cutterhead bearings and
total machine
-
Excessive chipping vibration damaging the
machine
-
Excessive strain on drives, PTO’s, engines, etc.
- Loss of time and money
The Dulling Of Knives Is Caused By:
- Poor quality knives
- Improper cutterhead anvil to knife clearance
- Dirt, grit, or foreign material on the wood
- Knives sharpened at wrong angle
- Improper care of knives and knife hardware
Many times a knives cutting edge/point can
be brought back to a good edge with a #10 Flat
Bastard Mill File. This can reduce the amount of
resharpening.
Typical Knife Sharpening Angles:
Beast Knives = 34¹⁄2° ± ¹⁄2° Angle
Knives should be replaced in sets. These sets
are determined by the amount of resharpening done
to the knives (knife width). Resharpening knives
reduces the width of the knife. Knife replacement
should be done in sets of the same width knives. That
will reduce chipping vibration and increase chipping
performance.
Beast Knife
34 ¹⁄2°
Min.
3 1/2”
(89 mm)
BELT SANDER: 900-9908-43
80 GRIT BELT: 900-9908-44
