Why does thread keep breaking when sewing?

Answer 1

AnswerThere is one fact that gets overlooked often. Make certain that your bobbins are the exact ones recommended for your machine. Many look similiar, but if they are off even slightly in depth, they will not work. Also, make certain your bobbin in locked into position in it's case and the thread is coming from the bobbin in the correct direction. When holding my metal bobbin in my hand, the thread pulls counter clockwise before placing it into my front loading bobbin case. Each machine is different so check your manual.

You can also check that your presser plate is in correctly and without burrs. Good luck and I hope this works.

Additional InfoThere are several reasons why this would happen. In order of probability:

- You are not holding the thread tails when starting a seam - The needle is not properly installed in the needlebar - The machine is not threaded properly - The machine needs adjustment or repair

--Check that your needle is not installed backwards. On my Singer the full-length groove (not the short partial groove) has to face you.

---Check needle is not bent.

---Check to make certain that the bobbin you are using is the correct one for your machine and that it is set in the case correctly.

Answer 2

Maybe the machine is threaded incorrectly. Consult your manual (can be found online) or do a search for "threading sewing machine".

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Often, if it IS threaded correctly but the thread is still breaking, you need the timing adjusted which you can't easily do yourself.

You could take it in for servicing, and the service clerk can show you the correct method. It probably could use a tune-up, anyway.

Is it breaking or does it come unthreaded as soon as you start to sew? If that's the issue don't cut your thread too short when you finish stitching. Be sure to leave a few inches of thread or the machine will pull the thread back through the needle when you start to sew again.

If that's not the issue, you will need to get the timing checked at a repair shop. It's not a big repair and won't cost much but it won't work until you get it done.

Answer 3

The thread from the bobbin should start to creep up towards the feed dogs and make a loop that the needle and thread can "grab" to pull it up thru the hole for stitching. You might want to slowly put the needle down thru the feed dogs and then slowly with the winder not the pedal but with the winder slowly bring the needle up again. Try this a few times and see if the needle and bring it up. I've had it take a few tries; it doesn't always bring it up the 1st time.

Answer 4

Three possiblities come to mind. 1. You need to adjust the tension. If it's too tight, the thread snaps. If it's too loose, the thread tangles, then snaps. 2. Your needle is no longer smooth, and the thread is snagging on a burr. 3. Your thread is old and can't handle the pulling. (It may still be okay for hand sewing.)

Answer 5

It could break from thick fabric, or maybe if you pull on it to where it bends...

Answer 6

The tension could be to high on the bobbin, or the thread not strong enough for the material you are trying to sew. Try adjusting the tension first.

Answer 7

either the thread is too thin or your machine is broken. you should first try a thicker thread, if that fails return or sell your machine.