New thread, re-stringing both the upper thread and bobbin thread. Tried to "tweek" machine by turning adjustment knobs trying to achieve a good tention but the either breaks during stitching or produces loops of loose thread on underside from bobbin case.
Loops under fabric means top tension needs to be tightened
try cleaning the top tension dial with some unwaxed dental floss and see if that helps. if it doesn't then the tension dial may need to be replaced
also check to make sure the spool of thread is not getting caught on the spool holder
also try a new needle--one that is correct for the fabric being sewed
SOURCE: Thread in needle or bobbin keeps on breaking
The tread only breaks in the needle. what can i do . i don't get to sew anything . I tread the needle and get everything ready and start the machine and as quickly as that the tread is broken and the machine has not sewn at all.
SOURCE: Top thread stitches correctly but bottom thread loops.
FYI---- Loops on the bottom-- problem is in the threading..
Loops on the top--- problem is with the bobbin.
SOURCE: Juki HZL-E61: cannot get tension right on straight stitch
Loops on the bottom of the fabric direct the problem to the top thread. Rethread again and make sure the thread goes through the tension discs. Lift the foot, because this is what opens the discs. When sewing and the foot is down, the discs should be closed and thus giving the upper thread the tension it needs.
SOURCE: I get loops on top and/or bottom of fabric during
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.
SOURCE: top thread keeps breaking
This sounds like a backwards needle. Take out the needle and when you re-insert it back in, make sure that put the flat side to the back.
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