DR Pro 475 Safety & Operating Instructions Manual page 22

To Free a Jammed Flywheel
Shut down the Engine (The flywheel will continue to rotate for a while after the engine is shut off), Wait 5 minutes for the engine
to cool and all moving parts to come to a complete stop, remove spark plug wire and disconnect the negative battery cable before
moving or working on the chipper.
Tools Needed:
•
Two 1/2" Wrenches
•
5/16 Wrench
•
Phillips Head screwdriver
Never pry against the Scroll Weldment when removing the Deflector or Discharge Chute or at any other time. This will cause
Damage to the machine.
Figure 36
Discharge
Chute
Chipper
Housing
Figure 37
DR ®
22 SELF-FEEDING WOOD CHIPPER
Disassemble:
Negative
Battery
1. Remove any material left in the Chipper Hopper.
Cable
2. Disconnect the negative terminal at the Battery (Figure 36).
3. Remove the two Bolts and Locknuts that secure the Discharge Chute to the
Chipper Housing and then remove the Discharge Chute (Figure 37).
4. Check to see if the Discharge Chute or Discharge opening is clogged. If it
is, clear it with a wooden stick.
5. With a wooden stick, loosen and remove any material left in the Chipper
Battery
Housing and make sure the Flywheel turns freely with the stick.
Reassemble:
1. Position the Discharge Chute onto the Chipper Housing and secure with
two Bolts and Locknuts.
Bolts and
2. Reconnect the battery negative terminal cable, the spark plug wire and start
Locknuts
the Chipper engine; allowing the remaining material in the Chipper Housing
to discharge.
3. If the Chipper Housing doesn't clear and the flywheel is still jammed, repeat
above process.
Note: Be certain the Chipper Housing is clear before trying to process more material
into the Chipper Hopper.
Hopper