Harbor Freight Tools 68147 User Manual - Page 16

Safety Troubleshooting Problem Tool will not start. Tool operates slowly. Performance decreases over time. Excessive noise or rattling. Overheating. Possible Causes 1. Cord not connected. 2. No power at outlet. 3. Tool's thermal reset breaker tripped (if equipped). 4. Internal damage or wear. (Carbon brushes or Trigger, for example.) Extension cord too long or wire size too small. 1. Chisel dull or damaged. 2. Internal lubrication cold. 3. Carbon brushes worn or damaged. Internal damage or wear. (Carbon brushes or bearings, for example.) 1. Forcing tool to work too fast. 2. Chisel dull or damaged. 3. Blocked motor housing vents. 4. Motor being strained by long or small diameter extension cord. Likely Solutions 1. Check that cord is plugged in. 2. Check power at outlet. If outlet is unpowered, turn off tool and check circuit breaker. If breaker is tripped, make sure circuit is right capacity for tool and circuit has no other loads. 3. Turn off tool and allow to cool. Press reset button on tool. 4. Have technician service tool. Eliminate use of extension cord. If an extension cord is needed, use shorter/heavier gauge cord. See Extension Cords in GROUNDING section. 1. Keep cutting chisels sharp. Replace as needed. 2. Allow tool to operate with no load for 5 minutes before use. 3. Have qualified technician replace brushes. Have technician service tool. 1. Allow tool to work at its own rate. 2. Keep cutting chisels sharp. Replace as needed. 3. Wear ANSI-approved safety goggles and NIOSH‑approved dust mask/respirator while blowing dust out of motor using compressed air. 4. Eliminate use of extension cord. If an extension cord is needed, use one with the proper diameter for its length and load. See Extension Cords in GROUNDING section. Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power supply before service. Setup Operation Maintenance Page 16 For technical questions, please call 1-888-866-5797. Item 68147