TROUBLESHOOTING
SYMPTOM |
| POSSIBLE CAUSE | CORRECTIVE ACTION | ||
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Teeth Breakage |
| 1. | Too few teeth per inch. | 1. | Use finer tooth blade (make sure at least three teeth- |
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| contact the workpiece). |
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| 2. | Excessive loading of gullets. | 2. | Use coolant or increase coolant flow, or use coarser |
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| 3. | Excessive feed rate. |
| tooth blade. |
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| 4. | Work not secured in vise. | 3. | Decrease feed rate. |
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| 4. | Check that vise is tight to the bed and the movable |
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| jaw is tightened. |
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Blade breakage. |
| 1. | Teeth too coarse. | 1. | Use a finer tooth blade. |
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| 2. | Misalignment of guides. | 2. | Adjust blade support and guide bearings. |
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| 3. | Dry cutting | 3. | Use coolant system. |
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| 4. | Excessive speed. | 4. | Decrease cutting speed |
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| 5. | Excessive feed | 5. | Decrease cutting feed rate. |
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| 6. | Excessive tension. | 6. | Reduce blade tension |
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Cut not straight. |
| 1. | Wheels out of line. | 1. | Adjust blade tracking. |
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| 2. | Guides out of line. | 2. | Adjust support and guide bearings. |
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| 3. | Excessive feed pressure. | 3. | Adjust spring tension to reduce feed pressure. |
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| 4. | Insufficient blade tension | 4. | Increase blade tension. |
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| 5. | Work not secured in vise. | 5. | Check that vise is tight to the bed and the movable |
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| jaw is tight on the material to be cut. |
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Blade Twisting. |
| 1. | Blade not aligned with blade | 1. | Adjust support and guide bearings, check alignment |
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| guides. |
| of blade to table. |
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| 2. | Excessive feed pressure. | 2 | Adjust spring tension to reduce feed pressure. |
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| 3. | Excessive feed rate. | 3. | Reduce feed rate at control panel. |
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Premature tooth wear. | 1. | Dry cutting. | 1. | Use coolant system. | |
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| 2. | Blade too coarse. | 2. | Use finer tooth blade. |
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| 3. | Insufficient feed rate. | 3. | Increase feed rate so that blade does not ride in cut. |
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| 4. | Excessive speed. | 4. | Reduce cutting speed. |
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| 5. | Tooth set is uneven. | 5. | Replace blade, or have it professionally sharpened. |
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Repetitive ticking | noise | 1. | Blade weld contacting support | 1. | Use file or stone to smooth and round the back of the |
when blade is on. |
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| or guide bearings. |
| blade. |
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| 2. | Blade weld may be failing. | 2. | Inspect and replace blade if necessary. |
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Blade does not run even- | 1. | Tracking is not adjusted prop- | 1. | Adjust tracking. | |
ly on wheels or runs off. |
| erly. |
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Blade does not cut |
| 1. | Blade tension is incorrect. | 1. | Adjust tension. |
evenly. |
| 2. | Tooth set is uneven. | 2. | Replace blade, or have it professionally sharpened. |
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| 3. | Replace blade, or have it professionally sharpened. |
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| 3. | Teeth are sharper on one side |
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| than the other. |
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Blade contacting | table | 1. | Horizontal stop screw not | 1. | Adjust horizontal stop screw. |
surface. |
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| adjusted. |
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Blade does not stop after | 1. | Automatic | 1. | Adjust automatic | |
cut is complete. |
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| adjusted. |
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G1011 7" x 12'' Bandsaw |