Question about Sewing Machines
Most likely is the left looper thread is trapping the needle threads.
Remove the threads and start over in this sequence....
Left looper - right looper - left needle - right needle.
If you thread the needles before the lower looper, the needle thread wrapped over the looper will be under the looper thread and will never be free to form a stitch, so the threading sequence is critical.
Posted on Jun 08, 2008
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