Question about Singer 2517 Mechanical Sewing Machine

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Thread bunching on model singer 2157C

I have tried to adjust the tension on my machine to avoid bunching but I have had no luck. It is set on the highest setting and changing the number of stitches doesn't seem to help either. My last attempt at fixing it was a disaster. All the thread from the bobbin is now bunched underneath and is difficult to get out without leaving remnants.

HELP!!

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  • twinboys1 Aug 31, 2008

    Thanks for your help. I just found out it will cost me more to service it than to buy a new one. Guess I will be searching for a new machine.

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According to everything I've researched, when this happens it's because there is no tension. Check & make sure it's threaded properly. If it's still bunching underneath, then there may be something wrong inside the machine - even though you adjust the tension, it may not really be happening inside. You'll have to take it apart or service it.

Posted on Aug 29, 2008

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I need elp with tension on singer cg550


You didn't explain the symptoms. Is the thread bunching, looping, knotting under the fabric? Is the bobbin thread rising to the top of the fabric?

If it is bunching under the fabric, it is probably what is called thread nesting or bird nesting. There are several fixes, sometimes more than one fix is required to resolve the issue.

Be sure to clean under the needle plate, around the bobbin, and the feed dogs. If the machine has instructions for oiling, follow the directions using a fresh, good quality sewing machine oil and apply only 1-2 drops each spot.

Install a brand new needle. Make sure you are using a needle compatible with the thread and fabric being used. All About Needles
Best practice is to use the same thread in both the upper and bobbin. Also, avoid old or bargain bin thread. Spend an extra couple of dollars to reduce frustration and increase success with your machine. If you wish, you may use two different colors of thread to test so you can easily determine what is happening with the tension.

Remove the thread from the machine. RAISE the presser foot and rethread from the beginning--the thread needs to be seated firmly in the tension disk. Verify that the correct thread path is followed (consult the owner's manual).

Set the upper tension to the midway point between high & low numbers (this is the factory standard and is a good place to start, but every machine is different and may need adjustment).

Confirm that the bobbin is installed in the bobbin case (turning the correct direction) and that the bobbin case is threaded properly.

Before beginning to stitch, hand rotate the handwheel one rotation and pull the bobbin thread to the top of the fabric. Then, gently hold the thread tails in the left hand and slowly begin to stitch.

Test.

If thread is bunching, looping under the fabric, the upper tension is too loose. Tighten it and retest. On most machines, the lower the tension number, the looser the tension.

If the bobbin thread is rising to the top of the fabric, the upper tension is too tight. Loosen the upper tension and retest.

Keep adjusting and testing until it is where you want it. Generally, tension is correct when both threads (upper & bobbin) meet in the middle of the fabric. FWIW, tension is static and should be tested and readjusted every time a new project is begun. The needle, thread, and fabric will affect the tension, so it is important to get comfortable adjusting the tension.

Also found the following reviews. Appears that some users have had tension issues with their CG550.

Amazon com Customer Reviews Singer CG 550 10 Stitch Commercial Grade...

..

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1 Answer

Have a Singer 11910000A and the bobber thread bunches up and makes a mess in the feet when sewing


Is it really the bobbin thread that is globbing? Check closely. Usually it is the upper thread accumulating under the fabric.

If it is in fact the bobbin thread, then the bobbin case is not threaded correctly, the bobbin case tension needs adjustment, or it is broken and needs replacement. There are web sites and YouTube videos that show how to adjust the bobbin case tension.

QUICK FIXES: Remove all the thread from the machine. Clean the area around the feed dogs and bobbin area. Oil as instructed in the owner's manual using ONLY fresh, good quality sewing machine oil (only 1-2 drops each spot). Install a brand new needle insuring it is installed correctly. Avoid using fuzzy, old, or bargain bin thread. Rethread: Be sure you raise the presser foot BEFORE threading the upper thread so it will seat properly in the tension disk--and check to make sure you are threading the machine correctly. Check that the upper tension is set properly (the factory standard is usually the halfway point between the high & low number on the selection). Test on a scrap of the fabric you wish to sew. Adjust the upper tension--either tighten to pull the upper thread toward the top of the fabric, or loosen to pull more upper thread down.

Here are some web sites that may help.

Sewing Machine Thread Bunching Up Here Why

sewing machine birdnesting

https://answers.yahoo.com/question/index?qid=20100303212248AAnRUQA

8 Tips to Fix Birdnesting in Embroidery

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

http://www.marthastewart.com/1085057/common-sewing-machine-repair-tips


and here's another Hint that may be helpful:

https://www.youtube.com/watch?v=KDERq4I7l-Q

...

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It sounds like the tension for the top thread is too loose. Try re-threading the machine, and then adjusting the tension to make it tighter.

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Tension is adjusted with the tension dial on the right side of your machine.You would adjust the tension to your comfort. Use a piece of material to practice on, and tighten or loosen your tension till your threads look just right. If they are to tight your material will bunch up, if they are to loose you will have thread loops or very loose threads. As you get to know your machine this will come to you as easy as driving a Model T Ford. GOOD LUCK.

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found this for a 4526 - it could be very similar to your machine.

http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Singer_Sewing_Machine_Threading/singer_4526_4528_4530_threading.htm

there is also good general machine help on www.sewing.about.com which gives generic threading help, trouble shooting etc.

Tension is usually controlled by a dial on the top thread, and a little screw on the bobbin case on the bottom thread. However, if you adjust either, just small increments is best to avoid making things worse. Top tension usually set to 5 or middle number and bottom tension shouldn't often need touching.

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