BM3700
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Perguntas frequentes e Solução de problemas |
How do I install the bobbin wound with thread? (For models equipped with a quick-set bobbin)
Make sure you turn off the machine while threading. If you accidentally step on the foot controller and the machine starts to sew, you could be injured.
Not winding the bobbin properly may cause the thread tension to loosen, and may break the needle.
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(1) Presser foot lever |
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(1) Mark on the handwheel |
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(1) Bobbin cover |
Make sure you set the bobbin so the thread unrolls in the right direction. If the thread unrolls in the wrong direction, it may cause the thread tension to be incorrect or break the needle.
Lightly hold down the bobbin with your right hand as shown (A), guide the thread through the slit (B).
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(1) Slit |
Make sure you set the bobbin so the thread unrolls in the right direction. If the thread unrolls in the wrong direction, it may cause the thread tension to be incorrect or break the needle.
If the thread is not correctly inserted through the tension-adjusting spring of the bobbin case, it may cause incorrect thread tension.
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(1) Tension-adjusting spring |
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(1) Groove |
Start sewing after threading the lower and upper thread. When sewing gathers or darts, you can draw up the lower thread by hand so that some thread will be left over. Refer to “How do I draw up the lower thread?”.