There is a dial or lever on the front of your machine, probably more toward the left side. The higher the number, the tighter the tension.
SOURCE: singer 5050
Does your sewing machine create unwanted loops or does the thread snap on the top of your machine? Does it seem like your machine does not want to work with you? Your problems could be related to tension.
First off, I recommend putting a white thread in the bobbin and a black thread through the needle. This will be imperative as you will need this to learn which thread is your main problem.
When you sew, which thread is the one malfunctioning? Do you see loops of black, white or is the black snapping? This is how you will be able to pinpoint your problem for further analysis.
When you sew, which thread is the one malfunctioning? Do you see loops of black, white or is the black snapping? This is how you will be able to pinpoint your problem for further analysis.
If you see loops of black, your needle tension is too loose or your bobbin is too tight. First try tightening the main dial on your machine to a higher number. If that does not work, try using a small screwdriver to turn the screw underneath the bobbin-case in the front of your machine clockwise. Please remember that even a little turn can mean everything in your work. I recommend only turning it 1/4th of a turn each time you test it.
Now if the loops were white, it means your bobbin tension is too loose. Do the same as above, tightening the screw clockwise with a screwdriver. If it seems too tight, please do loosen it and try to find a happy medium between your needle thread and your bobbin thread.
If the thread snaps, your tension is too tight. Do the reverse of the above. Either lower the number on your needle if the thread is snapping or turn the screw on the bobbin-case counter-clockwise. Again, each little bit of the turning counts, so only turn it about 1/4th the way. It is always good to be extra careful.
Keep working with both until you get a nice even stitch. An even stitch means the black should be on the top of your fabric and white should be on the bottom. It is perfectly okay if you see a little speck of one on the other side.
If all fails, try putting two drops of sewing machine oil in your machine and let it run through for about five minutes. The mechanisms might be a little overworked and are having a problem with your machine.
It is good if you keep a lot of fabric scraps available in case you over oiled. You do not want to be working on a difficult project for your sewing machine only to spit some oil on it. Keep sewing on the fabric scraps until there is absolutely no residue from the oil. Putting any more that 2 drops as stated earlier might cause more problems than you expect. Always use the oil sparingly.
If none of the above solutions have worked and you feel frustrated by your machine, a local Sewing Repair Shop visit should only run you about $40 and is highly recommended for your machine. A professional can tell you if what’s wrong with your machine is fixable at-home or not. A full repair for older machines before working with them is highly encouraged.
SOURCE: singer 57817 thread tension problem
Hello,
If you have Increased the upper thread tension on your machine, try these solutions.
* Decrease your bobbin tension if your sewing machine allows you to adjust it. Consult your manual.
* Re-thread your bobbin, It may be threaded incorrectly.
* Reinsert your bobbin, It may be inserted incorrectly.
* Change your thread. If your upper thread and bobbin threads are different types, try using the same thread for both.
I hope this helps.
SOURCE: Can't adjust the tension on old singer!
increase top thread tension slowly till u get similar stitches on both sides
SOURCE: I am using a Singer Model 9005 and I need help
Top tension about 4 or 5 and you should only just be able to pull the bottom thread through with slight resistence, if it is too tight undo the screw on the bobbin case a quarter of a turn at a time anti clockwise anjd test and keep doing that until you get it right
SOURCE: bobbin tension is too loose
"Birdnesting" occurs when there is no tension on the needle thread to pull the bobbin thread. This is easily corrected by rethreading the machine, following the threading path carefully and making sure the thread is fully engaged in the tension mechanism.
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