15
Pow’R’kraft Chipper 15
Revision 9/22/16
A f t e r a n y k n i f e o r w e a r p l a t e
maintenance or adjustment, rotate
the cutting disk by using a wooden
stick and watch and listen carefully
for any unusual noises, clicking or
vibration. If you detect any of these,
inspect the machine for damage or
any loose parts. Repair or replace
any damaged parts and tighten
any loose parts before starting the
machine.
Top View: Blade & anvil set-up
Wear Plate
Cutting disk
Rotor Shaft
Outside Blade
3mm
(outside of
cutting disk)
Note: Diagram only shows blade
on outside of cutting disk. The
blade closest to the bearing
overlaps the outside blade.
1mm
(inside of
cutting disk)
A piece of cardboard of the right thickness
is usually a good gap gauge for resetting the
wear plate. The wear plate can be adjusted
through the mounting slots. Always ensure
these bolts are properly tightened.
Remove the feed hopper and use a wooden
stick to rotate the cutting disk to make the
knives positioned next to the wear plate. Slide
the gap gauge in between the knives and wear
plate to check the clearance.
• If t h e g ap g au g e sl i d e s f r e e l y , w i t h n o
resistance and a lot of extra space, the wear
plate must be adjusted.
• If t he g ap g aug e w ill not slid e d ow n b et w een
the knives and wear plate , the wear plate
must be adjusted.
• If t he g ap g aug e slid es in b et w een t he knives
and wear plate with some resistance felt
against them both or slides in between with
no noticeable space, then the wear plate is
properly adjusted.
If the wear plate is not set correctly, excessive
vibration will occur when chipping and the
knife will seem to be dull. If there is not
enough clearance, the knife edges may touch
the wear plate through deflection when
cutting heavy branches and damage the sharp
edge. Too much clearance will allow small
twigs and fibrous materials to be dragged
through without being cut.
V-Belt Check
To ensure optimum power transmission from
the engine to the rotor shaft, the V-Belts
must be in good condition and operate under
proper tension.
1. Turn off engine. Engine must be cool.
2. Pull up belt tension lever to get the belts
tight in working condition.
3. Remove the top belt guard from the front
housing by taking off the fixing bolts.
4. Check the condition of the V-Belts. If any
V-Belt is cracked, frayed, or glazed, it should
be replaced as soon as convenient.
5. Check the V-Belt tension by squeezing
them in the center. The normal defection on
each side should be approximately 3/8” with
moderate pressure from your thumb or finger.
V-Belt Tensioning
P r o p e r b e l t t e n s i o n i s c r i t i c a l t o g o o d
performance. Proper adjustment will assure
long belt lift. Too much or too little belt
tension will cause premature belt failure.
1. Turn off engine. Engine must be cool.
2. Pull up belt tension lever to get the belts
tight in working condition.
3. Remove the top belt guard from the front
housing by taking off the fixing bolts.
4. Loosen two M12 adjustment nuts by turning
them in the anti-clockwise direction and move
downward to reduce any slack in V-Belts.
