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?
Yep, it's generally user error. The top thread is not seated completely in the tension disk.
Remove the top thread from the machine.
ALWAYS RAISE the presser foot and rethread from the beginning.
Hopefully, all the adjustments you've made to the machine can be reversed because bobbin adjustments can be difficult to undo.
Posted on Feb 19, 2018
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Posted on Jan 02, 2017
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
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