Bandit
Copyright 11/10
PAGE 7
MODEL 490
CHECK THE ANVIL TO KNIFE CLEARANCE
1. This clearance should be checked on a weekly basis or as knives are changed. To check the anvil
clearance, follow all pre-maintenance shut down procedures. Once all safety procedures are
completed the anvil to knife clearance can be checked.
2. In order to check the clearance, lift the infeed hopper and lock into position. Use a feeler gauge or
the anvil to knife gauge supplied by Bandit to check the clearance of the first knife to the anvil. Check
the clearance at the left and right sides of the knife.
3. Once that knife has been checked, remove the drum lock pin, and very carefully rotate the chipper
drum so the other knives can be checked.
4. Once all knives have been checked, adjust the anvil according to the closest knife. The anvil to knife
clearance should be .0” (1.1mm) to .06” (1.7mm).
5. Set the closet knife to this distance.
ANVIL ADJUSTMENT
MAINTENANCE SECTION
ANVIL ADJUSTMENT PROCEDURE
1. To adjust the anvil, loosen the anvil bolts from underneath the machine.
2. Once the components have been loosened, move the anvil to the correct clearance.
3. Once the knife is set to the correct clearance, .045” (1.1mm) to .065” (1.7mm), retighten all
components.
4. Make sure bolts are torqued to their specific bolt torques refer to the Bolt Torque Chart.
5. Carefully rotate the chipper drum to make sure all the knives and hardware clear the anvil.
Anvil
Knife
Drum Head
Anvil To
Knife Gauge
View looking at drum with
the infeed hopper lifted
Anvil Bolts
Torque To
Specs
Anvil Bolts
Torque To
Specs
View looking up underneath
drum head and base area
Before attempting any type of maintenance disengage clutch, turn off engine, wait for the disc/drum to come
to a complete stop, install the disc/drum lock pin, disconnect battery, and make sure the ignition key is in your
possession.
DANGER
