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Troubleshooting & Repair
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Figure 16. Triangular Hammer Wear Area
REPAIR
Engine Service
Your chipper/shredder engine requires routine mainte- nance for
Shredding Hammers
The cutting edges of the shredding hammers may even- tually wear out, requiring rotation of the hammer, or com- plete replacement if all cutting edges have been used.
Triangular hammers can be rotated twice after the first edge dulls, then flipped over once and rotated again for a total of six cutting edges. J hammers can be flipped over once (Model 5/14 only), for a total of two cutting edges. Shredding hammers need to be rotated when shredding performance becomes sluggish, or when the edges of the hammers wear down, as shown in figures 15 and 16.
To inspect and service the shredding hammers, follow these steps:
1.Turn engine off, allow rotor to stop completely, and disconnect spark plug wire.
2.See Figure 18. Detach the shredder hopper from the rotor housing, leaving the liner and handle in place on the hopper.
3.Remove the rotor housing by unscrewing the
Figure 17. J Hammer Wear Area
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Figure 18. Removing Shredder Hopper
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Figure 19. Removing Rotor Housing
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