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Needle thread is wrapping around the bobbin case
Not to familiar with the industrial machines. However, even with domestic models. the position of the 'needle' bar at the time you remove your fabric, does make a difference as to weather it pulls our smoothly or, you are going to get that "extra" loop. Needle should be half way up or all the way. maybe this might help
Sewing Machine Tech
on Nov 17, 2016
Needle thread wrapping around bobbin case.
Hello Crystal, I also have had problems in the past with drop-in bobbins . I had to experiment with different model bobbins . The cause I found was due to the bobbin was not tall enough in the drop-in bobbin case. When sewing , the bobbin would rock in the bobbin case and the top thread would get caught on the bobbin instead of going over the top of the bobbin, causing the rats nest that you described. I would recommend finding a taller bobbin to fit in the bobbin case. There are about five different bobbins that will fit in there, but only one that will work properly. Knowing the exact model number of your machine would be a great help to finding the correct bobbin.
on Feb 26, 2014
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