Troubleshooting
Condition |
| Cause | Reference | |
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The needle thread | 1. The needle thread is not threaded properly. | Page 19 | ||
breaks. | 2. The needle thread tension is too tight. | Page 22 | ||
| 3. | The needle is bent or blunt. | Page 14 | |
| 4. | The needle is incorrectly inserted. | Page 14 | |
| 5. | The needle thread and the bobbin thread are not drawn to the |
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| rear when sewing is started. | Page 21 | |
| 6. | The fabric is not drawn to the rear when sewing is finished. | Page 23 | |
| 7. | The thread is too heavy or too fine for the needle. | Page 15 | |
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The bobbin thread | 1. The bobbin thread is not threaded properly in the bobbin holder. | Page 18 | ||
breaks. | 2. Lint has collected in the bobbin holder. | Page 64 | ||
| 3. | The bobbin is damaged and doesnÕt turn smoothly. | Change the bobbin | |
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The needle | 1. The needle is incorrectly inserted. | Page 14 | ||
breaks. | 2. The needle is bent or blunt. | Page 14 | ||
| 3. | The needle clamp screw is loose. | Page 14 | |
| 4. | The needle thread tension is too tight. | Page 22 | |
| 5. | The fabric is not drawn to the rear when sewing is finished. | Page 23 | |
| 6. | The needle is too fine for the fabric being sewn. | Page 15 | |
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Screen is not | 1. The sharpness of the liquid crystal display is not adjusted prop- | Page 4 | ||
clear. |
| erly. |
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Skipped stitches | 1. The needle is incorrectly inserted. | Page 14 | ||
Page 14 | ||||
| 2. | The needle is bent or blunt. | ||
| Page 15 | |||
| 3. | The needle and/or threads are not suitable for the work being | ||
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| sewn. | Page 15 | |
| 4. | A blue tipped needle is not being used for sewing stretch, very | ||
| Page 19 | |||
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| finefabrics or synthetics. | ||
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| Page 13 | ||
| 5. | The needle thread is not threaded properly. | ||
| Change the needle | |||
| 6. | The presser foot pressure is not strong enough. | ||
| Page 22 | |||
| 7. | The wrong needle is being used. | ||
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Seam puckering | 1. The needle thread tension is too tight. | Page 19 | ||
| 2. | The needle thread is not threaded properly. | Page 15 | |
| 3. | The needle is too heavy for the fabric being sewn. | Make stitch denser | |
| 4. | The stitch length is too long for the fabric. | Page 13 | |
| 5. | The presser foot pressure is not correctly adjusted. |
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The cloth is not | 1. The feed dog is packed with lint. | Page 64 | ||
Page 13 | ||||
feeding smoothly. | 2. The presser foot pressure is too weak. | |||
Make stitch coaser | ||||
| 3. | The stitches are too fine. | ||
| Page 13 | |||
| 4. | Feed dogs are lowered. | ||
| Page 13 | |||
| 5. | The correct presser foot is not being used. | ||
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