Safety & Operating Instructions

Troubleshooting Table (continued)
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.
S YMPTOM
POSSIBLE CAUSE
Chipping action seems
too slow or flywheel
stalls.



The engine speed is too slow causing the belt to slip. Run the engine at full throttle.
Check for loose or damaged Drive Belt; tighten or replace. See Chapter 4.
Check for a dull or damaged Knife; sharpen or replace the Knife. See Chapter 4.
The belt frays or rolls
over the pulley.

The rotor Drive Pulley groove may be nicked. Check the Drive Belt for wear and hard spots. File
off any nicks on the pulley.

The Drive Belt may be stretched; replace it. See Chapter 4.

The Pulleys may be misaligned. See Chapter 4.
- Clutch overheats.

Immediately stop the engine and disconnect the spark plug wire.

Turn the Flywheel with a wooden stick to be sure it turns freely.
- Belt burns.


Check for a loose Drive Belt. See Chapter 4.
Remove any built-up debris from the Chipper Hopper Inlet and Discharge Chute.
- Flywheel won’t turn.
The machine has

Check for a dull or damaged Knife; sharpen or replace the Knife. See Chapter 4.
excessive vibration.

Check the Knife to Wear Plate Gap. See Chapter 4.

The Knife is not properly seated on the flywheel. Loosen the Knife mounting screws, reset the
Knife and tighten the screws.

If the machine still exhibits excessive vibration, contact us at www.MacKissic.com or call
[phone] for assistance.
When chipping, the log
seems to vibrate
excessively and
“hammers” my hands.



The Knife is dull; sharpen or replace it. See Chapter 4.
The gap between the Knife and Wear Plate is too great; adjust the Gap. See Chapter 4.
Check Engine rpms; run Engine at full throttle when chipping.
Material does not feed
as well.


The Knife is dull; sharpen or replace it. See Chapter 4.
Check Engine rpms; run Engine at full throttle when chipping.
Chipper Knife is hitting
the Wear Plate.

The gap between the Knife and the Wear Plate is set incorrectly; adjust the Knife to Wear Plate
Gap. See Chapter 4.
Engine runs but the
flywheel doesn’t rotate.


The inner Shoes of the Clutch are worn. Replace worn or broken Clutch parts. See Chapter 5.
Loose Drive Belt; adjust the Drive Belt tension. See Chapter 4.

Remove any built-up debris from the Chipper Hopper Inlet and Discharge Chute.
CONTACT US AT www.MacKissic.com 39