33
Shredder Knives:
The shredder rotor is designed with 3 sets of swinging knives (8 knives on the
SM32S)
. Each knife has
a bevelled edge that cuts, chops and mulches the material as it moves around the rotor compartment.
In addition the chop block helps to break the material into smaller pieces and turn it into mulch.
The material stays in the rotor housing until it is fine enough to escape through the holes in the screen
at the bottom of the rotor frame.
1. Ensure the engine is off (ignition switch is off and the fuel valve is closed).
2. Remove the 2 bolts that hold the upper rotor housing, and carefully open the rotor housing.
3. Manually rotate chipper rotor plate so that one
set of shredder knives is fully exposed
4. Loosen the shredder bolt that holds the set
of shredder knives and spacers to the shred-
der plate,
5. Slowly remove the bolt while catching the
knives and spacers as they become free.
6. Reverse the knife and replace, or replace with
new or re-sharpened knives.
7. Ensure that the knives and spacers are in-
stalled in the correct sequence, improper
installation will decrease performance of
the shredder. Refer to diagram for help.
8. Tighten down bolts as specified in the torque
chart, ensure knives rotate freely.
9. Repeat steps for second and third sets of
shredder knives.
Shredder Knives and
Spacers
Shredder
Bolt
Upper Rotor
Housing
Set 1
Set 3
Set 2
SM32S knife / spacer se-
quence
Fig. 17 SHREDDER KNIVES
Fig. 17 SHREDDER KNIFE SEQUENCE
