Question about Singer 5050 Mechanical Sewing Machine
I am trying to sew on a model #5932 and the thread is knotting on the underside as I sew. This problem arbitrarily gets worse and better. The top of the stitch looks fine, but the underside looks like alternating normal stitching, huge tangle of thread, and then fine again. The loops of thread are huge on the underside when the machine is acting up, but switches back and forth between good stitches and bad with no stopping or changes in any settings on the machine. HELP!!!. I am using the straight stitch setting, the tension is on 4, stitch length is on 1, normal cotton thread, normal cotton fabric. I have to finish this quilt this week. Please Help me figure this out!
Try oiling the hook if you haven't recently.
Check you needle plate and hook for damage, they may need to be buffed or sanded smooth.
Check your upper tension discs for lint and double check your upper thread path (proper threading).
There are other things like hook timing, needle clearance or broken check spring that may be wrong but you need a technician for those things.
best of luck!
Posted on Jan 31, 2009
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Posted on Jan 02, 2017
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