When sewing the sewing machine seems to seize. Took off the free arm and opened the door to watch the bobbin, and saw that the upper thread is going around the post that holds the bobbin and sticking instead of pulling the bobbin thread up. Tried flipping the bobbin around, only helped temporarily. Ideas?
Has your machine worked before? Check that it is the correct bobbin and bobbin case. Although,if it is the spindle that is sticking out through the bobbin case, that is the shuttle. Perhaps the shuttle is not seated correctly.
Otherwise, it would probably be good to take it for service.
SOURCE: thread getting caught around bobbin case
It isout of time you need to time it.by adjusting the screw on the bobbin holder turn it left or right and the tension knobe and foot tension.
SOURCE: bobbin jams
This is a common problem with all sewing machines. You must make sure that both needle and bobbin thread are behind the sewing foot and that there is at least 4inches of each thread before you begin stitching. Thread jams can also be caused by improper placement of bobbin in the casing. Place the bobbin in the case so the open side is facing you, the thread end should be on your right, then slide the thread into the opening leaving about 6 inches to pull through. It may look like it should be the other way, but there needs to be some tension. If these solutions do not help, you probably need to have your machine cleaned and adjusted.
SOURCE: Upper thread wraps around bobbin mechanism, while sewing
IT PROBABLY IS THREADED INCORRECTLY. GO SLOWLY BY THE DIAPHRAGM AND MAKE SURE IT IS THREADED CORRECTLY. ALSO MAKE SURE SPOOL PIN HOLDERS ARE IN PLACE THAT HELPS TO GUIDE THE THREAD CORRECTLY.
SOURCE: Birdsnest and machine jams
I have a singer 457 (from 1964!!) that I inherited from my grandmother. It worked successfully many months, but then I developed a similar problem (birds nests, tangles in the bobbin assembly).
AFter messing with the tension, different spools of thread, and what not, I found that it was the BOBBIN that was the problem. Althought this bobbin is the same size and shape as others, there is something about it that knots up the inside of the machine EVERY time (as in within 15 stitches or less).
I tossed the thing and have been trouble free ever since.
I am now convinced that bobbins (particularily plastic ones) wear out.
SOURCE: thread knotting around bobbin case
hello, I had the exact same problem and could not find the solution until i took my machine to my sewing sensei and i solved my tedious problem. It was actually not a tension problem at all but a threading problem. Make sure you have threaded your bobbin correctly and that when you pull on the bobbin thread that the bobbin turns the right way. (mine must spin anti clockwise to work) Make sure that when you pull up the bobbin thread using the needle that it is not over the feed dogs connective bar but under it. A big problem when the thread gets caught around the bobbin case wheel is that the thread is looped around the feed dogs once and that causes the thread to get caught around the bobbin wheel. In conclusion, thread the bobbin correctly and read over your instruction book before spending the money to get it fixe in s shop.
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