CS70s
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FAQs & Troubleshooting |
Bobbin thread breaks
When the bobbin thread breaks, check the following possible causes and solutions.
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The bobbin thread was not set correctly.
Reset the bobbin thread correctly.
For details on setting the bobbin thread, refer to "How do I install the bobbin wound with thread?".
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Bobbin thread is incorrectly wound.
Rewind the bobbin thread correctly.
For details on winding the bobbin, refer to "How do I wind the bobbin?".
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There are scratches on the bobbin.
Replace the bobbin with a new one.
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The thread is tangled.
Remove the tangled thread and clean the race.
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A bobbin designed specifically for this machine is not used.
Incorrect bobbins will not work properly.
Be sure to use the included bobbins (part code: SA156, SFB: XA5539-151) or the same type.
SA156 is Class 15 type bobbin.
The bobbin's height is 11.5 mm (approx. 7/16 inch).
(1) 11.5 mm (approx. 7/16 inch)
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