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NOTE: For repairs beyond the minor adjustments listed above, please contact your local Sears Service Center.
TROUBLESHOOTING
Problem Cause Remedy
Engine fails to start 1. Spark plug wire disconnected.
2. Fuel tank empty or stale fuel.
3. Throttle control lever not in
correct starting position.
4. Choke not in CHOKE position.
5. Engine not primed.
6. Blocked fuel system.
7. Faulty spark plug.
1. Connect wire to spark plug.
2. Fill tank with clean, fresh gasoline.
3. Move throttle lever to FAST position.
4. Move choke to CHOKE position.
5. Prime engine.
6. See Sears Service Center to have fuel
system cleaned.
7. Clean, adjust gap, or replace.
Engine runs erratic 1. Spark plug wire loose.
2. Unit running on CHOKE.
3. Dirt in fuel system
4. Stale fuel.
5. Dirty air cleaner.
6. Carburetor out of adjustment.
1. Connect and tighten spark plug wire.
2. Move choke lever to OFF position.
3. See Sears Service Center to have fuel
system cleaned.
4. See Sears Service Center to have fuel
system cleaned. Fill tank with clean, fresh
gasoline.
5. Clean or replace air cleaner.
6. See authorized service dealer.
Too much vibration 1. Loose parts or damaged
impeller.
2. Blade(s) damaged or not
properly sharpened.
1. See Sears Service Center.
2. Replace or sharpen blade(s).
Engine overheats 1. Engine oil level low.
2. Dirty air cleaner.
3. Carburetor not adjusted
properly.
1. Fill crankcase with proper oil.
2. Clean or replace air cleaner.
3. See Sears Service Center.
Occasional skip
(hesitates) at high
speed
1. Spark plug gap too narrow. 1. Adjust gap to.030” (0.76 mm)
Unit does not
discharge
1. Discharge chute clogged.
2. Foreign object lodged in
reduction chamber.
3. Low engine RPM.
1. Stop engine immediately and disconnect
spark plug wire. Clean shredder screen and
inside of discharge opening.
2. Stop engine and disconnect spark plug wire.
Remove lodged object.
3. Always run engine at full throttle.
Rate of discharge
slows considerably or
composition of
discharged material
changes.
1. Low engine RPM.
2. Chipper blades or shredder
blade dull.
1. Always run engine with the throttle in the
FAST position.
2. Replace blades or see your Sears Service
Center.