9.10 Shredder Knife Maintenance
Observe shredder knife operation at each use. Sharpen every
50 hours of operation.
The shredder rotor has three sets of swinging knives. Each knife
has a beveled edge that cuts, chops and mulches material as it
moves around the rotor compartment through the chop block.
The chop block helps to break the material into smaller pieces
and turn it into mulch.
The sized opening in the divider at the top of the rotor keeps the
material inside the rotor housing until it becomes fine enough
to move through to the rotor paddles and expelled out the
discharge chute.
The shredder knives need to be sharp for the best performance.
Periodic inspection is recommended.
01100
3
2
1
4
5
Fig. 36 –
Rotor Assembly
1. Rotor
2. Rotor paddle
3. Hammer-retainer pin
4. Shredder knife
5. Spacer
9.10.1 Change the Shredder Knives
IMPORTANT! Make sure that the knives and spacers are
installed in the correct sequence. Incorrect installation
decreases the shredder performance.
1.
Open the upper housing.
2.
Manually turn the chipper rotor until one set of shredder
knives is fully exposed.
3.
Hold the hammer-retainer pin (3) in position and remove
the nut. Each hammer-retainer pin secures one set of
shredder knives and spacers to the shredder plate.
4.
Slowly remove the pin, while catching the knives and
spacers as they become free.
5.
Reverse each knife or replace it with a new or sharpened
knife.
6.
Use the pin to install the knives and spacers. Make sure
that the sharpened knife edges face the direction of rotation
(indicated by a decal on the upper housing).
7.
Install and tighten a new hammer-retainer pin nut (do not
reuse the hammer-retainer pin nut that was removed).
Make sure that the knives rotate freely.
8.
Repeat steps 2 through 7 for the second and third sets of
shredder knives.
9.11 Tire Maintenance and Safety
WARNING!
Failure to follow the correct procedures when
mounting a tire on a wheel or rim can produce an
explosion, which may result in serious injury or
death. Do not attempt to mount a tire unless you
have the correct equipment and experience. Have
a qualified tire dealer or repair service perform
tire maintenance.
IMPORTANT! Replace worn tires with tires that meet the
original tire specifications. Never undersize tires.
•
Tighten the wheel lug nuts to the correct torque daily. For
torque specifications, see
•
Check the tire pressure before towing the machine on a
roadway. See the tire sidewall for the correct pressure.
•
At a minimum, check the tire pressure after every 100
hours of operation or annually.
Service and Maintenance
BXMT3213
Trailer Chipper / Shredder
44
