Bandsaw Operations
SYMPTOM | POSSIBLE CAUSE | CORRECTIVE ACTION |
Machine is loud when | 1. Excessive feed rate. | 1. Refer to Feed Rate on Page 26, or Changing Blade |
cutting or bogs down in |
| Speed on Page 23, and adjust as required. |
the cut. | 2. The blade TPI is too great, or the | 2. Refer to Blade Selection on Page 24 and adjust as |
| material is too coarse. | required. |
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Blades break often. | 1. Blade is not tensioned correctly. | 1. Check to see that blade is not excessively tight or too |
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| loose. |
| 2. The workpiece is loose in the vise. | 2. Clamp the workpiece tighter, or use a jig to hold the |
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| workpiece. |
| 3. The feed or cut speed is wrong. | 3. Refer to Feed Rate on Page 26, or Changing Blade |
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| Speed on Page 23, and adjust as required. |
| 4. The blade TPI is too great, or the | 4. Refer to Blade Selection on Page 24, and adjust as |
| material is too coarse. | required. |
| 5. The blade is rubbing on the wheel | 5. Refer to Blade Tracking on Page 34, and adjust as |
| flange. | required. |
| 6. The bandsaw is being started with | 6. Start bandsaw and then slowly lower the bow by set- |
| the blade resting on the workpiece. | ting the feed rate. |
| 7. The guide bearings are misaligned, | 7. Refer to Blade Tracking on Page 34, or Blade Guides |
| or the blade is rubbing on the wheel | on Page 24, and adjust as required. |
| flange. |
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| 8. The blade is too thick, or the blades | 8. Use a higher quality blade. |
| are of low quality. |
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Blade dulls prematurely. | 1. The cutting speed is too fast. | 1. Refer to Changing Blade Speed on Page 23, and |
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| adjust as required. |
| 2. The blade TPI is too coarse. | 2. Refer to Blade Selection on Page 24, and adjust as |
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| required. |
| 3. The blade feed pressure is too light. | 3. Refer to Feed Rate on Page 26, and adjust as |
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| required. |
| 4. The workpiece has hard spots, welds, | 4. Increase the feed pressure, and reduce the cutting |
| or scale is on the material. | speed. |
| 5. The blade is twisted. | 5. Replace the blade. |
| 6. The blade is slipping on the wheels. | 6. Refer to Blade Tension on Page 34, and adjust as |
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| required. |
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Blade wears on one side. | 1. The blade guides are worn or mis- | 1. Refer to Blade Guides on Page 24 and replace or |
| adjusted. | adjust. |
| 2. The blade guide slide bracket is | 2. Tighten the blade guide bracket. |
| loose. |
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| 3. The wheels are out of alignment. | 3. Refer to Blade Tracking on Page 34, and adjust as |
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| required. |
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Teeth are ripping from the | 1. The feed pressure is too heavy | 1. Refer to Blade Selection on Page 24 and decrease |
blade. | and the blade speed is too slow; or | the feed pressure. Refer to Feed Rate on Page 26, |
| the blade TPI is too coarse for the | and adjust as required. |
| workpiece. |
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| 2. The workpiece is vibrating in the | 2. |
| vise. | required. |
| 3. The blade gullets are loading up with | 3. Use a |
| chips. |
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G0561 7" x 12" |