APPENDIX
Symptom | Possible cause | How to put it right | Reference | |
| The upper thread was not threaded |
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| correctly (for example, the spool is | Correct the upper threading. Use the |
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| not installed correctly, the spool cap |
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| spool cap that best fits the size of the | page 23 | ||
| is too big for the spool being used, or | |||
| spool being used. |
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| the thread has come out of the |
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| needle bar thread guide.) |
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| There are knots or tangles in the | Remove any knots or tangles. | – | |
| thread. | |||
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| The needle is not appropriate for the | Choose a needle that is appropriate | page 29 | |
| thread you are using. | for the type of stitch. | ||
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| The upper thread tension is too tight. | Loosen the upper thread tension. | page 41 | |
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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 upper | the race. |
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thread breaks. | The needle is bent or blunt. | Replace the needle. | page 30 | |
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| The needle is incorrectly installed. | Correctly install the needle. | page 30 | |
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| The area around the hole in the | Replace the needle plate. |
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| Contact your retailer or the nearest | – | ||
| needle plate is scratched. | |||
| authorised service center. |
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| The area around the hole in the | Replace the presser foot. |
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| Contact your retailer or the nearest | – | ||
| presser foot is scratched. | |||
| authorised service center. |
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| The bobbin case is scratched, or has | Replace the bobbin case. |
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| Contact your retailer or the nearest | – | ||
| a burr on it. | |||
| authorised service center. |
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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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| You have not wound the bobbin | Wind the bobbin thread properly. | page 15 | |
| thread properly. | |||
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| The bobbin is scratched or does not | Replace the bobbin. | – | |
| turn smoothly. | |||
The lower |
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| Remove the tangled thread and |
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thread is tangled | The thread is tangled. | page 80, 84 | ||
clean the race. | ||||
or breaks. |
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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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| You have not threaded the upper thread | Thread the upper thread and wind | page 20, 21, 23 | |
| properly or fitted the bobbin properly. | the bobbin thread properly. | ||
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| The spool or spool cap is incorrectly | Correctly install the spool or spool | page 24 | |
| installed. | cap. | ||
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| You have not used the right | Choose a thread and needle that are |
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| combination of fabric, thread and | page 29 | ||
The fabric is | appropriate for the type of fabric. | |||
needle. |
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wrinkled. |
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The needle is bent or blunt. | Replace the needle. | page 30 | ||
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| If thin fabrics are being sewn, the | Sew with the stabilizer material |
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| stitch is too long or the fabric is not | page 44 | ||
| under the fabric. | |||
| being fed correctly. |
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| If thin fabrics are being sewn, the | Shorten the stitch length, or sew with | page 38, 44 | |
| stitch is too coarse. | stabilizer material under the fabric. | ||
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