Symptom | Probable Cause | Remedy | Reference |
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| The thread is tangled, for example, | Remove the tangled thread. If the |
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| thread is tangled in the bobbin case, | page 70 |
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| in the bobbin case. |
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| clean the race. |
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| The needle is bent or blunt. | Replace the needle. | page 35 |
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| The needle is incorrectly installed. | Correctly install the needle. |
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| The area around the hole in the | Replace the needle plate. Contact |
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| needle plate is scratched, or has a | your retailer or the nearest authorized | – |
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The upper thread | burr on it. | service center. |
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The area around the hole in the | Replace the embroidery foot. Contact |
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breaks. |
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| embroidery foot is scratched, or | your retailer or the nearest authorized | – |
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| has a burr on it. | service center. |
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| The bobbin case is scratched, or | Replace the bobbin case. Contact |
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| your retailer or the nearest authorized | – | ||
| has a burr on it. | |||
| service center. |
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| Incorrect bobbins will not work |
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| A bobbin designed specifically for | properly. Only use a bobbin | page 24 |
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| this machine is not used. | designed specifically for this |
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| machine. |
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Bobbin thread | The thread that was pulled out | Wind the thread that was pulled off |
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does not wind |
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was not wound onto the bobbin | around the bobbin five or six times | page 26 |
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neatly on the |
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correctly. | clockwise. |
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bobbin. |
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| The bobbin thread is incorrectly | Correctly install the bobbin thread. | page 28 |
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| installed. |
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| The bobbin is scratched or does |
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| not rotate smoothly, or has a burr | Replace the bobbin. | – |
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The lower thread | on it. |
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is tangled or | The thread is tangled. | Remove the tangled thread and clean | page 70 |
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breaks. |
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the race. |
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| A bobbin designed specifically for | Incorrect bobbins will not work |
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| properly. Only use a bobbin | page 24 |
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| this machine is not used. | designed specifically for this |
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| machine. |
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| The upper thread was not | Correct the upper threading. | page 30 |
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| threaded correctly. |
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| The bobbin thread is incorrectly | Correctly install the bobbin thread. | page 28 |
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| installed. |
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The thread tension |
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The thread tension is incorrect. | Adjust the tension of the upper | page 64 |
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is incorrect. |
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thread. |
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| Incorrect bobbins will not work |
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| A bobbin designed specifically for | properly. Only use a bobbin | page 24 |
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| this machine is not used. | designed specifically for this |
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| machine. |
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