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Racing bobbin


jzollin

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The tension on my bobbin case feels perfect to me. But sometimes as I'm quilting it sounds like my bobbin is going much faster than the machine is actually stitching. Soon the bobbin thread breaks and the backing has a mess of threads in the stitching for a couple of inches before it has broken.

It seems that I should tighten the tension to stop it from spinning so fast, but when I do then the thread just breaks. This used to be an occasional problem but it is starting to happen more frequently.

Does anyone know what could be causing this?

Thanks,

Jill

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If your bobbin is spinning faster than you can stitch, remove the check (backlash) spring from the bobbin and pry the two fingers out a bit. Reinsert and do some stitching off-quilt to see if that helps. Bending the fingers out will prevent bird's-nests and breakage by stopping the bobbin when you stop stitching. You'll need to adjust your bobbin tension after this fix as it will be tighter.

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