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Thread breaks frequently on my machine, taken to shop eight times. It was supposed to be cleaned but each time but it still breaks. I have removed the plate that covers the bobbin and cleaned the thread, but it continues to break.

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  • Sewing Machines Master
  • 7,365 Answers

Bobbin thread breaks
1. There is a right way & wrong way to insert the bobbin in the case --when you insert the bobbin in if it doesn't stitch correctly turn the bobbin over see if that helps or bobbin case is not inserted correctly
2. Lint has collected in the bobbin holder
3. The bobbin is damaged & doesn't turn smoothly
4. Lower thread tension is two tight

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

  • 22 Answers

SOURCE: I have a Singer mod 9134 sewing machine. It keeps

Try inserting the bobbin in the reverse direction. Most machines take a bobbin clockwise or counterclockwise and it can make a difference. Also try a new needle, a bad needle is often the problem believe it or not.

Posted on Nov 10, 2009

SOURCE: the thread keeps breakijng when I am embroidering

It could just be that your needle is blunt and you need to put a new one in. It is amazing how many different problems a blunt needle can cause. Hope its sorted now.

From Sewmad

Posted on Nov 26, 2007

  • 980 Answers

SOURCE: bobbin thread keeps breaking

Could well be that the bobbin tension is too tight, you should only just be able to pull the bottom thread through with slight resistence, if it is too tight slacken the screw on the bobbin case anti clockwise about a quarter of a turn at a time and test until you get it right,

Posted on Mar 07, 2010

Tally Girl
  • 1122 Answers

SOURCE: Elna 2007 sewing machine breaking upper thread in

Is your top thread tension on 1? this sounds way too loose, should be 4 or 5.
This is a horizontal top loading bobbin machine isn't it like the Janomes?

Do you have a manual for it? It sounds to me like the top thread is too loose and as it is pulled down and around the rotary hook there is no tension on it to pull it back up through the fabric and form a stitch which is then causing it to jam. Then once youve gots bits of thread in there, its just jamming and jamming. Cleaning out the bobbin holder as you described is good, you may need to do it again and ensure all bits of thread are out of it.

I think you need to revist all the threading up and ensure that the top thread is under tension, try number 5. Also check that bobbin is correctly wound nice and smoothly, then loaded into the bobbin holder correctly so that the thread is coming off the bobbin spool in the right direction, ie thread needs to come off the bobbin, then reverse direction in a "v" shape, usually in the direction of the back of the free arm. And that the thread has been clicked into the tension spring fully, put the thread into the slot of the tension device and press down on it with your finger tip until you hear it click into tension.

Also double check the take up lever, if the thread has slipped out of this, it will jam up for sure.

If you don't have any manual for this then try www.sewusa.com, there is good troubleshooting tips and threading diagrams for lots of makes and models.

Hope this helps you, persever, its most likely threading/tension issues and can be overcome with the right settings.


Posted on Aug 25, 2011

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1 Answer

Why does bobbin cotton keep bunching?


Is it the upper thread bunching under the fabric? If so, it is usually incorrect upper threading, the thread is not seated in the tension disk, or the upper tension is too loose. Also, a damaged needle can cause issues.

Install a brand new needle that is compatible with the thread and fabric. Frequent changing of needles is an inexpensive fix for a frequent sewing issues.
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Remove all the upper thread.
RAISE the presser foot and rethread from the beginning.
Make sure the thread path is correct (consult the manual).
Set the upper tension at the midway point between high & low numbers.

Retest. If the upper thread and bobbin thread are not meeting in the middle of the fabric stitched, then loosen or tighten the upper tension until it does.

NOTE: Always thread the upper thread with the presser foot in the raised position. This opens the disk and allows the thread to seat properly. Also to remove upper thread, it is best to clip the thread near the spool, raise the presser foot, and graspl the clipped thread tail near the needle and pull DOWN through the machine (Never pull thread up through the tension disk).

Noted that you cleaned the bobbin area, but also be sure to clean the feed dogs. Frequently, lint & dust accumulates in and around the teeth which can inhibit their ability to grasp the fabric firmly. Frequent cleaning in this area is important for your machine's maintenance.

Review the cleaning and oiling instructions in your manual. Oiling is important and should be performed frequently with 1-2 drops each spot as specified. Oiling the hook is usually good to do every 8 hours of sewing time. Use ONLY fresh good quality sewing machine oil for your machine--NOT 3-in-1, WD-40, cooking oil, or the old metal can in grandma's sewing basket.

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OLD thread or perhaps a bad needle .

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After breaking a needle I cannot get my bobbin to catch. also can't find the piece of needle.


you may have knocked it out of time just a little . repair shops do not charge much to retime usually .

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I have a singer advance and the thread from the top starts out sewing correctly but within a short time becomes too tight and snaps what is the problem


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Hai, Please check the thread tension and change the new thread and new needle. Otherwise put the some drops oil in the top and bobbin thread. Or go to mechanic shop.

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Singer 7430, Needle hits the bottom of the bobbin case.


when the needle breaks on a pin that can cause a
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The thread in the lower looper breaks frequently I spend more time threading than sewing


Try replacing the needle. It may be bent. I use polyester/cotton thread in the bobbin as it is stronger and resists breaking. A loose or a tight adjustment on the bobbin holder can also cause breaking. Check with a service shop for this one if you are not familiar.

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Upper thread breaking on singer machine


Check that your bobbin thread is not wound too tightly or too loose. Also adjust your tension down a click at a time until it stops breaking, testing on scrap fabric. Singer provided manuals online. Look it up here: http://www.singerco.com/accessories/manuals.html

Sep 10, 2009 | Singer 3116 Simple

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No matter how small or large my needle is, it breaks frequently. It is as if it does not always move straight up and down because it slams into the "plate" which is now all rough. I purchased my machine...


Seems as though the needle bar may be bent check this by turning the machine by hand, without a needle, if there are tight spots, then the bar may be bent. Try a thinner needle and go threough the sew cycle by hand, this can tell you a lot.
The thread is snapping because of all the needle breakages making the hole in the needle plate full of sharp edges, get rid of these by removing the needle plate and using strips of fine wet'n'dry paper to smooth them down. aceck the bobbin case for sharp notches too.
Get the timing fixed and your machine should be working ok

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Skipping stiches


1) It’s possible the machine is threaded incorrectly. Remove the thread completely and rethread the machine. Be sure to use good quality thread--don't buy the cheapest you can find. A good thread will help your machine perform better and your projects last longer.

2) Poor stitch quality can be caused by the needle. Make sure you're using a new needle that's right for the job. Many times machines are taken in for repairs and all they need is a new needle. If you can't remember the last time you changed the needle--it's past time. Needles should be changed at least every eight hours of sewing.

3) When inserting a new needle, make sure the flat side of the needle faces away from the bobbin area. For example, if your machine has a frontloading bobbin, the flat side of the needle faces the back of the machine. If your machine has a side-loading bobbin, the flat side faces the right side of the machine. Some older sergers require special needles that don't have a flat side. Refer to your owner's manual to properly install a serger needle.


4) Thread that shreds or breaks can be blamed on the needle. Use a good thread and make sure the needle eye is large enough for the thread type. Also use the right type of needle for the fabric;
5) The machine tension adjustments put stress on the thread so it doesn't simply flow through the machine. When the upper and lower tensions are balanced, the stitch forms correctly. Tension is easy to adjust--stitch on fabric samples with a different thread colour for the upper and lower threads. Observe the stitch, adjusting the tension until the stitch is formed correctly. As a general rule, adjust the upper tension first. If the stitch still isn't right, adjust the bobbin tension.

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