Question about Singer 237 Class Service And Repair Manual
When sewing top thread balls up at bobbin and feeder
Posted by Anonymous on
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Posted on Jan 02, 2017
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.
Posted on Sep 22, 2008
If you turn the handwheel, can you see a metal ring rotating around the outer edge of the bobbin case? If not rotating, broken gear or timing belt off.
If that ring is turning, remove the needle plate and bobbin case. As this ring now rotates, you will a finger on the ring that will pass behind the needle from right to left and it should catch the thread from the eye of the needle. If this finger, the "hook" passes above the eye, you have a timing problem.
Let me know.
Posted on Feb 16, 2010
The balance stitch control on this model is below the stitch patterns; to the far right.
If you need a manual you can download a free one at the Singer Company website.
Posted on Mar 13, 2010
You can download a manual for $10 at www.sewingmanuals.com and it should help you. A couple of suggestions though, is your needle inserted correctly? Flat side facing the rear of the machine, fresh needle? Threaded correctly on top and bobbin area? Is your thread good not too old and the same type in bobbin and top? Did you leave a long enough tail in the bobbin thread? 3-4 inches which you hold with your left hand. Is the thread in the bobbin unwinding the right way? Are you turning the handwheel towards you, not away from you at least two revolutions or until you see the thread loop? Try these suggestions, and I am sure one will work unless your timing is off and it needs professional service.
Posted on Sep 20, 2010
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