Craftsman 247.77003 Operator's Manual page 22

Problem
Idles poorly
Excessive vibration
Unit does not discharge
Rate of discharge slows
considerably or composition of
discharged material changes.
TROUBLESHOOTING
Cause
1. Spark plug fouled, faulty, or gap too wide.
2. Dirty air cleaner.
1. Loose parts or damaged impeller.
1. Discharge area clogged.
2. Foreign object lodged in impeller.
3. Low engine RPM.
4. Vacuum bag is full.
1. Low engine RPM.
2. Chipper blade dull.
1. Reset gap or replace spark plug.
2. Refer to Air Cleaner in Engine Maintenance section.
1. Stop engine immediately and disconnect spark plug wire. Call
Craftsman at 1-888-331-4569 for inspection and repair
1. Stop engine immediately and disconnect spark plug wire. Clean
flail screen and inside of discharge opening.
2. Stop engine and disconnect spark plug wire. Remove lodged
object.
3. Always run engine at full throttle.
4. Empty bag.
1. Always run engine at full throttle.
2. Refer to Sharpening or Replacing Chipper Blade section, or call
Craftsman at 1-888-331-4569 for chipper blade service.
22
Remedy