33 02/02
ROUTINE MAINTENANCE
INSPECTING AND ADJUSTING THE KNIFE ANVIL CLEARANCE
The anvil should be adjusted to a minimum of .045
and a maximum of .080 from the cutting edge of the
highest chipper knife.
To inspect and adjust the knife anvil clearance, follow
these steps:
1. Disengage clutch and run engine at idle speed.
2. Be certain feed wheel control bar is in the neutral
position.
3. Activate the hydraulic valve to raise the yoke.
Note: On machines without the hydraulic lift option,
remove the cylinder and unhook the tension springs.
Use an auxiliary lifting device to raise the infeed yoke,
and install the yoke lock pin.
4. Install yoke lock handle.
Note: The yoke lock handle is located on the side of
the infeed. It is absolutely essential to install this
handle prior to working beneath the feed wheel.
Make sure this handle are completely inserted, to
prevent the feed wheel from lowering accidently.
5. Turn the engine off and remove the ignition key
Disengage the clutch.
NOTE: LOCK OUT ENGINE PANEL.
CAUTION: MAKE SURE THE CHIPPER
DRUM HAS COME TO A COMPLETE
STOP.
6. The anvil clearance can be checked by reach-
ing into the infeed spout.
7. Use a feeler gauge to check the clearance
between the knife anvil and the cutting edge of
each knife. Set anvil to the knife that is located
closest to the anvil.
8. Loosen the six (6) anvil bolts by using a 15/16"
socket.
9. Slide the anvil to the desired position using the
twoeye bolts located behind the anvil bolts.
10. Retighten the anvil bolts. (Refer to torque
chart on page 37.)
11 Turn the drum backwards to check for proper
clearance on the other knives, ensuring that all the
knives are no closer than .045” and no further
than .080”
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