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Upper thread tension wire broke off!!!

The little wire loop on the upper thread tension broke off, I was sewing and it seemed to be doing fine. Then the upper thread broke and when I tried to rethread it had no tension at all and I noticed the little loop was laying on the table in front of the machine. Is this repairable? And if so can I repair it?

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The part that is broken is called a check spring. It keeps the thread away from the point of the needle until the needle pierces the fabric. You should probably take the machine into a reputable repair shop.

Posted on Mar 12, 2009

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2 Answers

Back side of stitches are loose

increase the thread tension of the needle thread
this is an indication that the tension is not enough to pull the bobbin thread up tight

Jun 15, 2016 | Sewing Machines

1 Answer

Bobbin thread looping...It was sewing fine then all of a sudden it started looping. I am sending a picture via email to see.

No picture, but I'm guessing that if you check the thread again, it is actually the upper thread that is looping under the fabric (generally referred to as bird nesting or thread nesting). The cause is usually incorrect threading or upper tension is too loose. Sometimes, the upper thread will "jump" out of a thread guide while sewing, usually the take up lever, and the result is called birdnesting.

Make sure you are using a brand-new needle.

Check that the bobbin area, under the needle plate, and the feed dogs do not have a build-up of lint, etc.

Remove the thread. Always RAISE the presser foot (so the thread will seat properly in the tension disk) and rethread from the beginning verifying that every guide has been followed in the thread path.

Set the upper tension at the midway point between low & high number.

Re-test your machine. You may need to fine-tune the upper tension until it is where it should be, ie upper & bobbin threads meet in the middle of the fabric.

Birds nest under the fabric big loops of thread top side looks good...


Troubleshooting Thread Nesting Sew Toot


Apr 24, 2016 | Sewing Machines

1 Answer

My singer sewing machine 7102 is looping the top thread underneath

Upper thread looping under the fabric is usually a sign that the thread is not seated in the tension disk or it is threaded incorrectly. FIRST, make sure you have a brand new needle in it. Remove the upper thread completely. RAISE the presser foot and rethread from the beginning. Verify that the thread pathway is correct. Also check that the upper tension is not set too loose.


Apr 04, 2016 | Singer Sewing Machines

1 Answer

When I finish to sew the end of string does not lacks it self and when you pull the bottom of the string everything opens

If the upper thread is looping on the bottom of the fabric as you sew, the upper tension is too loose. It could be threaded incorrectly, the upper thread may not be seated in the tension disk properly (be sure to RAISE the presser foot BEFORE threading the upper thread), or the upper thread tension is set too loose.

If you have checked everything and it is still looping underneath, the bobbin tension may be too loose or the bobbincase needs replacement.

Sewing Machine Thread Bunching Up Here Why

Oh You Crafty Gal Sewing Lesson 10 How to Fix Tension on Your Sewing...

Understanding Thread Tension Threads


Dec 20, 2015 | Janome Sewing Machines

1 Answer

Looped threads

Hello Rosemary
Looped thread on the underside are created by the upper thread. Loops on the top of the fabric are created by the bobbin thread. Whichever one is looping, has very little tension. This may be corrected by:
1. Re-threading the upper thread according to manufacturer's specifications.
2. Re-wind bobbin and re-set it into bobbin case and bobbin case area according to manufacturer's specifications.
3. Ensure that the needle is correctly installed and is the correct needle for the sewing machine.
4. Ensure that he bobbin being used is the correct one for the machine.
5. Double check that the tension on the upper thread is at the correct setting.
6. Double check that the tension unit is clean and free of dust, lint or lodged thread/s.
7. Double check that the bobbin tension is correctly set ... if you are comfortable doing so, otherwise leave it for a qualified technician
8. Make sure that he presser foot is down when stitching.
Please let me know how you go.
Happy stitching.

Nov 14, 2014 | Sewing Machines

1 Answer

Upper tension is to tight on the izek singer machine we have. Also on the bottom of the fabric the thread is looping up and tangeling.

Loops on the bottom mean the upper tension isn't tight enough. First make sure you thread the upper thread with the presser foot UP. Then do a test seam on the same type of fabric. If you still have problems. Tighten the upper tension a little then test seam again. Keep doing this until your problem is resolved.

Nov 09, 2012 | Sewing Machines

1 Answer

Lower thread too loose

Big loops on the bottom of the fabric is NOT the lower thread. First make sure that your upper thread is correctly threaded with the presser foot in the UP position. Do a test seem. If you still have loops tighten the UPPER tension knob. Do a test seem.

If after several upper tension changes do nothing. Remove the upper thread and take some rather rough sturdy fabric like light weight denim and "floss" where the tension discs are then rethread... and try again.

Oct 14, 2012 | Brother XL-2600

1 Answer

Machine starts to sew then upper thread knots up on underside of fabric

Do each of these steps one at a time and then test a seam on scrap fabric of the same type.

1. Make sure you thread the machine correctly with the feed dog lever in the up position. (this opens the tension discs, allowing the thread to seat correctly)

2. Make sure your needle and thread are the correct size for the fabric and that you've oriented the needle correctly and have it fully seated into the needle bar.

3. When beginning to sew a seam, always grasp both threads and hold them as you begin to sew.

4. Loops on the bottom of the fabric means that the upper tension is too loose. Tighten the upper tension a little at a time until loops disappear.

Good luck.

Sep 22, 2012 | Brother XL-2610

1 Answer

My Memory Craft 3500 suddenly seems to have no tension in the upper thread. Stitching looks fine on the top, but there are big thread loops on the bottom. Changing the upper tension dial doesn't seem to...


It could be a wad of lint in the upper tensioner disks keeping the disks apart. I have also seen on older machines where the thread has actually cut a groove into the disks. If you can dis-assemble the tensioner, clean and inspect. Be very careful to memorize the part order in which you remove the parts, this will help when re-assembling it.

Good Luck,

Feb 10, 2011 | Janome Sewing Machines

2 Answers

Singer futura 920 sewing machine

I have this machine for more than 30 yrs-- when this happens, the top thread is not pulled through the little disks correctly when you go up before getting to the arm. Here is a threading diagram

Feb 15, 2008 | Sewing Machines

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