MTD 380 Snow Blower User Manual


 
14
SECTION 8: TROUBLESHOOTING
NOTE: For repairs beyond minor adjustments listed above, contact an authorized service dealer.
Problem Possible Cause Remedy
Engine fails to start 1. Fuel tank empty, or stale fuel
2. Blocked fuel line
3. Choke not ON
4. Faulty spark plug
5. Key not in ignition switch
6. Spark plug wire disconnected
7. Primer not used properly
1. Fill tank with fresh gasoline.
2. Clean the fuel line.
3. Turn Choke knob to ON position.
4. Clean, adjust or replace spark plug.
5. Insert the key fully; do not turn.
6. Attach spark plug wire to the spark
plug on the engine.
7. Prime the engine as instructed earlier.
If the carburetor is flooded due to
over-priming, wait till it dries out.
Engine runs erratic 1. Unit running at FULL choke
2. Blocked fuel line or stale gasoline
3. Water or dirt in fuel system
1. Turn choke knob to OFF position.
2. Clean the fuel line, fill tank with fresh
gasoline.
3. Drain fuel tank and carburetor. Fill up
with fresh gasoline.
Engine loses power 1. Spark plug wire loose
2. Gas cap vent hole plugged
1. Connect spark plug wire.
2. Remove ice and snow from gas cap.
Be certain that vent hole is clear.
Excessive vibration 1. Loose parts or damaged auger 1. Stop the engine immediately and
disconnect spark plug wire. Tighten all
bolts and nuts. If vibration continues,
contact Sears service center.
Unit fails to propel
itself
1. Drive control cable not adjusted
2. Drive belt loose or damaged
1. Adjust drive control cable following
earlier instructions.
2. Replace drive belt.
Unit fails to
discharge snow
1. Discharge chute clogged
2. Shear bolt sheared.
3. Foreign object lodged in auger
4. Auger control cable out of adjustment
5. Auger belt loose or damaged
1. Stop engine and disconnect spark
plug wire. Clean discharge chute and
inside of auger housing.
2. Replace shear bolt.
3. Stop engine immediately and
disconnect the spark plug wire.
Remove object from auger.
4. Adjust auger control cable.
5. Replace auger belt.