Bandit
Copyright 11/10
PAGE
MODEL 490
MAINTENANCE SECTION
MAINTENANCE
PROCEDURE FOR UNPLUGGING YOUR CHIPPER
If your chipper is plugging, it is usually caused by allowing the engine to drop below required R.P.M.’s.
Operating the engine at speeds lower than full R.P.M.’s causes your chipper to plug.
Always run the
chipper at full engine speed.
Dull chipper knives also contribute to chipper plugging. Dull knives can
create slivers and chunks, causing the engine to lug excessively. Both of the aforementioned conditions
cause a plugging situation.
STEPS TO FOLLOW WHEN UNPLUGGING YOUR CHIPPER
1. Before attempting any type of maintenance turn off engine, wait for the drum to come to a
complete stop, install the drum lock pin, disconnect battery, and make sure the ignition key is in
your possession.
2. Make sure the chipper drum is
NOT
turning and then unbolt and remove the the chipper hood.
3. Unbolt the infeed hopper, lift the infeed hopper, and lock in the up position.
3. Using gloved hands and some type of raking tool, dig the chips out of the chipper housing.
4. If the discharge chute is plugged, use a raking tool to pull the majority of chips out of the open
outlet end of the chute. Then, remove the chute. If used properly, a hoist can be used to assist
in the removal of the chute.
5. Never allow one person to turn the chipper drum when someone else is working inside the
chipper housing. More than likely, the chipper drum will turn hard then loosen causing it to
turn faster. If another person is anywhere near the chipper drum, they may be injured.
6. Never turn the chipper drum by hand. Always use a pry bar or wood bar. This will prevent the
person turning the drum from being injured should the drum break loose.
7. Reinstall the discharge chute, mount securely and point it in a safe direction away from anything.
8. Never leave the chipper hood off and try to start the engine to let the chipper drum blow chips
out of the housing, this is very hard on the engine of the chipper and may cause damage. Also,
the flying debris is very dangerous. An exposed chipper drum turning very fast creates an unsafe
condition. In other words,
DO NOT
start the chipper with the hood removed or open because it is
just too dangerous.
9. Once the drum turns freely, put the chipper hood back into position and bolt it, start engine,
properly bring the throttle to full speed. Insert a small branch into the chipper drum. If the chips
discharge properly, the chipper is clear and normal operation may resume.
