Troubleshooting
Fault
Excessive blade breakage
Premature blade dulling
Bad cuts (crooked)
| Probable Cause |
| Suggested remedy |
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1. | Material loose in vise. | 1. | Clamp work securely. |
2. | Incorrect speed or feed. | 2. | Check Machinist’s Handbook for |
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| speed/feed appropriate for the |
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| material being cut. |
3. | Teeth too coarse for material. | 3. | Check Machinist’s Handbook for |
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| recommended blade type. |
4. | Incorrect blade tension. | 4. | Adjust blade tension to the point |
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| where the blade just does not slip |
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| on the wheel. |
5. | Saw blade is in contact with | 5. | Start the motor before placing the |
| workpiece before the saw is started. |
| saw on the workpiece. |
6. | Blade rubs on the wheel flange. |
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7. | Misaligned guides. | 6. | Adjust blade tracking. |
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8. | Cracking at weld. | 7. | Adjust guides. |
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| 8. | Longer annealing cycle. |
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1. | Blade teeth too coarse. | 1. | Use a finer tooth blade. |
2. | Blade speed too high. | 2. | Try a lower blade speed. |
3. | Inadequate feed pressure. | 3. | Decrease spring tension. |
4. | Hard spots in workpiece or scale | 4. | Increase feed pressure (hard |
| on/in workpiece. |
| spots). Reduce speed, increase |
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| feed pressure (Scale). |
5. | Work hardening of material | 5. | Increase feed pressure by reducing |
| (especially stainless steel). |
| spring tension. |
6. | Insufficient blade tension. | 6. | Increase tension to proper level. |
7. | Operating saw without pressure on | 7. | Do not run blade at idle in/on |
| workpiece. |
| material. |
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1. | Workpiece not square with blade. | 1. | Adjust vise so it is square with the |
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| blade. (Always clamp the workpiece |
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| tightly in the vise.) |
2. | Feed pressure too fast. | 2. | Decrease pressure. |
3. | Guide bearings not adjusted | 3. | Adjust guide bearing clearance to |
| properly. |
| 0.001 inch (0.002 inch maximum). |
4. | Inadequate blade tension. | 4. | Gradually increase blade tension. |
5. | Span between the two blade guides | 5. | Move blade guide bracket closer to |
| too wide. |
| work. |
6. | Dull blade. | 6. | Replace blade. |
7. | Incorrect blade speed. | 7. | Check blade speed (refer to Figure |
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| 5). |
8. | Blade guide assembly is loose. | 8. | Tighten blade guide assembly. |
9. | Blade guide bearing assembly | 9. | Tighten blade guide bearing |
| loose. |
| assembly. |
10. | Blade track too far away from wheel | 10. | Adjust blade tracking. |
| flanges. |
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11. | Guide bearing worn. | 11. | Replace worn bearing. |
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