21
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Operator’s Manual
Chipper Shredders
REPAIR
Shredding Hammer Rotation and Replacement
The cutting edges of the shredding hammers may eventually
wear out requiring rotation of the hammer or replacement if
all cutting edges have been dulled.
Triangular hammers can be rotated twice after the first edge
dulls, then flipped over once and rotated again for a total of 6
edges. J-hammers can be flipped over once for a total of two
cutting edges.
To rotate the shredding hammers:
1. Turn the engine off and wait for all moving parts to stop.
2. Disconnect the spark plug wire and secure it away from
the spark plug.
3. Detach the shredder hopper from the rotor housing.
SEE FIGURE 17
4. Remove the rotor cover by removing the hardware that
secures it to the main housing.
SEE FIGURE 18
5. Note the assembly sequence of the hardware used to
secure the hammers. Using a 5/16” allen wrench remove
the socket head cap screw (A) and related hardware.
SEE FIGURE 19
6. Inspect the hammers (G, H), spacer tubes (D, E), and
hardware. If the spacer tube (D, E) shows signs of wear,
replace it. Inspect and flip, or replace the hammers (G,
H).
7. Reassemble the hammers, spacers, washers, and cap
screws. Torque the socket head cap screws (A) to 30-35
ft. lbs. (41-47 N.m.)Refer to Figure 14 for assembly. The
J-hammer (G) on the opposite side of the rotor faces
outward for balanced rotation.
8. Repeat for all the hammers.
FIGURE 17 - Removing the Shredder Hopper
FIGURE 18 - Removing the Rotor Housing
14306-0022R1
14306-0223R1
A
B
C
D
E
F
G
H
A
B
C
D
F
E
14306-0024R1
A. Socket Hd. Cap Screw
E. Spacer, Short
B. Lock Washer, 3/8
F. Washer, 3/8
(9070300, 9010400, 9010140 only)
C. Washer, 7/8
G. J-Hammer
D. Spacer, Long
H. Triangular Hammer
FIGURE 19 - Rotor Housing
