
SERVICE
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| W1770 21" Bandsaw w/Foot Brake |
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Machine Operations |
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PROBLEM |
| POSSIBLE CAUSE |
| corrective action |
Machine slows when oper- 1. | Feeding workpiece too fast. | 1. | Reduce feed rate. See Basic Cutting Tips on Page | |
ating. |
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| 34. | |
2. | Blade is dull. | 2. | Replace/sharpen blade (Page 43). |
3.Brake is stuck or dragging on 3. Adjust foot brake. blade.
Ticking | sound when the | 1. | Blade | weld | contacting support | 1. | Use file or stone to smooth and round the back of | ||
saw is running. |
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| bearing. |
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| the blade. | |||
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| 2. | Blade weld may be failing. | 2. | Inspect and replace blade if necessary (Page 43). | ||
Blade contacting | table | 1. | Excessive side pressure when cut- | 1. | Reduce side pressure. | ||||
insert. |
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| ting. |
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| Adjust table (Page 27). |
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| 2. | Table improperly adjusted. | 2. | |||
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Vibration when cutting. | 1. | Loose or damaged blade. | 1. | Tighten or replace blade. See Page 43 or 22. | |||||
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| 2. | Blade is tracking incorrectly. | 2. | Fix blade tracking (Page 17). | ||
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| 3. | Blade tension is loose. | 3. | Fix blade tension (Page 22). | ||
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Burn marks on the edge of | 1. | Too much side pressure when feed- | 1. | Feed workpiece straight into the blade. See Basic | |||||
the cut. |
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| ing workpiece. |
| Cutting Tips on Page 34. | ||
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| 2. | Blade too wide for size of radius | 2. | Install a smaller width blade/increase blade tension. | ||
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| being cut. |
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| See Page 22 or 43. | |
Machine | has | vibration or | 1. | Blade weld hits guides or teeth are | 1. | Replace blade (Page 43). | |||
noisy operation when run- |
| broken. |
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| Replace blade (Page 43). | |||
ning. |
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| 2. | Bent or worn out blade. | 2. | |||
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| 3. | Motor or component is loose. | 3. | Inspect/replace stripped or damaged bolts/nuts, | ||
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| and |
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| 4. | 4. | Inspect/replace belts with matched set (Page 48). | |||
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| 5. | Motor fan is rubbing on fan cover. | 5. | Replace dented fan cover and loose/damaged fan. | ||
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| 6. | Pulley is loose. | 6. | Realign/replace shaft, pulley, setscrew, and key as | ||
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| required. |
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| 7. | Machine is incorrectly mounted or | 7. | Adjust the feet on the bottom of the stand; relocate | ||
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| sits unevenly on floor. |
| machine. | ||
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| 8. | Motor bearings are at fault. | 8. | Test by rotating | ||
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| shaft requires bearing replacement. |
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| 9. | Worn arbor bearings. | 9. | Check/replace arbor bearings. | ||
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| 10. Wheels | not | coplanar/aligned cor- | 10. Adjust wheel alignment to coplaner (Page 52). | ||
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| rectly. |
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| 11. Wheels out of balance. | 11. Replace wheels. | ||||
Rough | or | poor | quality | 1. | Feeding workpiece too fast. | 1. | Reduce feed rate. See Basic Cutting Tips on Page | ||
cuts. |
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| 34. |
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| 2. | Tracking and tension incorrect. | 2. | Fix tracking and tension (see Page 17 and 22). | ||
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Sawdust | buildup | inside | 1. | Clogged dust port. | 1. | Clean out dust port. | |||
cabinet. |
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| 2. | Low CFM (airflow) from dust collec- | 2. | Three options: | ||
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Blade wanders or won't fol- | 1. | Blade lead. |
| 1. | Refer to Blade Lead on Page 36. | ||||
low line of cut. |
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Brake does not slow or stop | 1. | Bad shoes/pad is worn out. | 1. | Replace brake pad (see Page 51). | |||||
machine. |
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| 2. | Limit switch is defective. | 2. | Replace foot brake limit switch. | |||
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