APPENDIX
■ After sewing
Symptom | Possible cause | How to put it right | Reference | |
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The upper | The bobbin thread is incorrectly |
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thread has | Correctly install the bobbin thread. | page 20, 83 | ||
installed. | ||||
tightened up. |
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| You have not threaded the upper | Correct the upper threading. | page 23 | |
| thread properly. | |||
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| You have not wound the bobbin | Wind the bobbin thread properly. | page 15 | |
| thread properly. | |||
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| The bobbin thread is incorrectly | Correctly install the bobbin thread. | page 20 | |
| installed. | |||
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| You have not threaded the right | Choose a thread and needle that are |
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The thread | combination of thread and needle | page 29 | ||
appropriate for the type of fabric. | ||||
for the fabric you are using. |
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tension is |
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incorrect. | You have not attached the presser- | Attach the | page 35 | |
| foot holder properly. | properly. | ||
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| The thread tension is incorrect. | Adjust the tension of the upper | page 41, 87 | |
| thread. | |||
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| You have not used a bobbin that has | Incorrect bobbins will not work |
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| properly. Only use a bobbin that has | page 15 | ||
| been designed for this machine. | |||
| been designed for this machine. |
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| Bobbin is set incorrectly. | Reset the bobbin thread correctly. | page 20, 21 | |
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The thread is |
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tangled on the | You have not threaded the upper | Correct the upper threading. | page 23, 84 | |
wrong side of | thread properly. | |||
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the fabric. |
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| The presser foot you are using is not | Attach the presser foot that is correct |
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| appropriate for the type of stitch that | for the type of stitch that you want to | page 73 | |
| you want to sew. | sew. |
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The stitch is not | The thread tension is incorrect. | Adjust the tension of the upper | page 41, 87 | |
sewn correctly. | thread. | |||
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| The thread is tangled, for example, | Remove the tangle thread. If the |
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| thread is tangled in the race, clean | page 80, 84 | ||
| in the race. | |||
| the race. |
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