Troubleshooting
Problem |
| Possible Causes |
| Likely Solutions |
Tool will not start. | 1. | Cord not connected. | 1. | Check that cord is plugged in. |
| 2. | No power at outlet. | 2. | Check power at outlet. If outlet is |
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| unpowered, turn off tool and check circuit |
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| breaker. If breaker is tripped, make sure |
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| circuit is right capacity for tool and circuit |
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| has no other loads. |
| 3. | Tool’s thermal reset breaker | 3. | Turn off tool and allow to cool. Press |
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| tripped (if equipped). |
| reset button on tool. |
| 4. | Internal damage or wear. (Carbon | 4. | Have technician service tool. |
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| brushes or switch, for example.) |
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Tool operates | Power being reduced by long or | Eliminate use of extension cord. If an | ||
slowly. | small diameter extension cord. | extension cord is needed, use one with the | ||
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| proper diameter for its length and load. See | |
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| Extension Cords in GROUNDING section. | |
Performance | Carbon brushes worn or damaged. | Have qualified technician replace brushes. | ||
decreases over |
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time. |
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Excessive noise or | Internal damage or wear. (Carbon | Have technician service tool. | ||
rattling. | brushes or bearings, for example.) |
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Overheating. | 1. | Forcing machine to work too fast. | 1. | Allow machine to work at its own rate. |
| 2. | Blocked motor housing vents. | 2. | Wear |
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| while blowing dust out of motor using |
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| compressed air. |
| 3. | Motor being strained by long or | 3. | Eliminate use of extension cord. If |
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| small diameter extension cord. |
| an extension cord is needed, use one |
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| with the proper diameter for its length |
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| and load. See Extension Cords in |
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| GROUNDING section. |
Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power supply before service.
Bench Grinder | For technical questions, please call | Page 13 |
