Question about Singer 1507
I've tried everything, changing the tension on the bobbin, adjusting the tension on the top thread, cleaning and lubricating the hook and it keeps jamming underneath the fabric. The machine was also working fine, then just started doing this half way through my project. Any suggestions?
SOURCE: bobbin tension
This is an issue of your upper thread tension, so take a look at this generic tension solution
If you are in a pickle with your bobbin case, check top tension and bobbin case are free of lint, reset the top tension to 4, and adjust the bobbin tension to suit......some more detail on how to do that, is here
Posted on Jan 30, 2008
Needle in correct? Be sure your bobbin is not in upside down and turning the wrong way. Possibly the hook that the bobbicase fits in/on has been hit by a needle and caused a burr that is catching the thread as it comes around. The burr would have to be polished off or hook replaced. The machine could be slightly out of time also.
Posted on Feb 11, 2009
SOURCE: looping underneath
I watched a 'You Tube' demo that showed ........if you loosen or tighten the very small screw at the base of the bobbin this gives you the correct tension & stops the looping under the fabric........I didn't even know this screw existed ! It is trial & era at first re the correct tension but you do get there.... the art is to do it in small mini stages.....like you hardly move it ! Thanks to 'You Tube' I can now get on and finish my drapes !
Posted on Nov 24, 2009
Top tension back to 4 and leave the bobbin tension as is.
Make sure you have a new needle for the type of fabric being sewn installed with the flat side to the back of the machine. A bent needle can sometimes go unnoticed.
Always thread the machine with the presser foot up and this will give proper tension to the stitch.
Check the manual to be sure you are threading correctly (always with the presser foot up) and that the bobbin thread is feeding in the correct direction from the bobbin spool and through the guides.
Take hold of the thread at the needle as you lower and raise the needle to pull up the bobbin thread. Take both thread ends under the presser foot and to the back of the machine.
Posted on Mar 11, 2010
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