76347-385 • 06 -15
4.15
General Maintenance • Knife Anvil
To Flip or Replace the Anvil:
1. Remove the six anvil bolts.
2. Clean debris from the anvil and anvil clamp slots with a wire brush.
3. If the anvil edge is rounded, flip to a new edge or replace. Anvil can be
flipped 4 times.
4. Place the anvil back onto the anvil slot. Apply a light coat of Loc-tite
lubricant to the bolts and insert.
To Set the Chipper Drum Knife/Anvil Clearance:
1. Reach into the infeed and slowly rotate the chipper drum so the
highest chipper knife closest to the anvil is positioned over the anvil.
2. With a feeler gauge, check the clearance between the chipper knife and
anvil. It should be set between .040” and .090”.
3. If necessary, loosen the six anvil bolts until the anvil is loose.
4. Turn the two eye bolts behind until the anvil is set to the correct
clearance.
5. Rotate the chipper drum backwards to the next knife and check and check
the clearance of the next knife.
6. Tighten the bolts to 150 ft/lbs.
Figure 4.13
Anvil bolt
Anvil clamp
Eye bolt
Anvil
The anvil is bolted to
the back of the clamp
Slots allow the anvil to
move up and down
Figure 4.14
Place feeler gauge
here to obtain a
.040 - .090” clearance
Highest chipper
knife
Anvil
Eye bolt
Eye bolt
After Maintaining the Anvil:
1. Remove the yoke locking pin.
2. Lower the yoke by activating the yoke valve bank handle.
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