Safety & Operating Instructions

ManualsBrandsMighty Mac ManualsChipper(3.75") 250cc Wood Chipper

Chapter 5: Troubleshooting

Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their solutions. If

you

continue to experience problems,

for support.

The flywheel will still rotate for A WHILE after the engine is shut off. Shut down the engine, wait for all moving parts to come

to a complete stop, remove spark plug wire, then wait 5 minutes before moving or working on the chipper.

Troubleshooting Table

YMPTOM

POSSIBLE CAUSE

The engine won’t start



Is the Fuel Shut-Off Valve in the ON position?

Is the spark plug wire attached?

Is the Fuel Tank empty?

If your MACKISSIC GRAVITY SELF FEEDING CHIPPER still won’t start, contact us at

www.MacKissic.com or

call

1-800-348-1117

for assistance.

(Please refer to the

Engine Owner’s manual

for engine-specific

procedures.)

The engine lacks power

or is not running

smoothly.



Check the Throttle Lever travel and adjustment. Is the Throttle Lever in the RUN position?

Is the Choke lever pushed all the way over to the RUN position? See Chapter 3.

Is the air filter clean? If it’s dirty, change it following the procedure in the Engine Owner’s

Manual.

Is the spark plug clean? If it is fouled or cracked, change it. If it is oily, leave it out, hold a rag

over the spark plug hole and pull the starter cord for a few times to blow out any oil in the

cylinder, then wipe off the spark plug and reinsert it.

Are you using fresh, clean unleaded gas? If it’s old, change it. Use a fuel stabilizer if you keep

gas longer than two weeks or so.

Does your engine have the right amount of clean oil? If it’s dirty, change it following the

procedure in Chapter 3.

If your engine still lacks power, contact us at

www.MacKissic.com or call 1-800-348-1117

for assistance.

(Please refer to the

Engine Owner’s Manual

for engine-specific

procedures.)

Engine smokes.



Check the oil level and adjust as needed.

You may be operating the machine on too great an incline. The machine should be level.

Check the air filter and clean or replace if needed.

You may be using the wrong oil - too light for the temperature. Refer to your Engine Owner’s

Manual for detailed information.

Clean the engine cooling fins and the carburetor housing if they’re dirty.

If the engine still smokes, contact us at

www.MacKissic.com or call 1-800-348-1117

for

assistance.

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 a 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 Belts for wear and hard spots.

File off any nicks on the pulley.

The Drive Belts may be stretched; replace them. See Chapter 4.

The Pulleys may be misaligned.