Some of the main reasons your thread could be wrapping around the bobbin include lack of proper maintenance, causing a buildup of lint and debris, improperly threading the machine, using the wrong needle, or using a different thread weight that is not recommended.
Why is my thread looping underneath?
A: Looping on the underside, or back of the fabric, means the top tension is too loose compared to the bobbin tension, so the bobbin thread is pulling too much top thread underneath. … In this case, it might be necessary to loosen both the bobbin tension AND the top tension.
How do I fix the tension on my bobbin thread?
To tighten your bobbin tension, turn the tiny screw on the bobbin case a smidgen clockwise. To loosen bobbin tension, turn the screw counterclockwise. A quarter turn or less is a good place to start.
When should I adjust the bobbin tension?
If the tension isn’t perfect, fix it by adjusting the bobbin spring; tighter if the bobbin thread shows on the upper layer, and looser if the needle thread shows on the underlayer. Make another test seam, and examine the stitches, repeating until the stitch is balanced.
Why does my thread keep wrapping around my needle?
Pull up the spool pin completely. If the spool of thread is in the wrong place, or is set incorrectly, the thread may tangle on the spool pin and cause the needle to break. … If the thread take-up lever is lowered, the upper thread can not be wrapped around the thread take-up lever.
What causes Birdnesting?
The main source of birdnesting or looping is improperly inserted or threaded bobbin or running the embroidery machine with no bobbin. … A tight bobbin tension, together with highly loose needle thread tension, can cause birdnesting. Flagging occurs when the hoop bounces up and down during sewing.
Probable Causes: – Top or bobbin thread is not set correctly. – Make sure that the bobbin was threaded properly in the shuttle race. …
Why is my bobbin jumping?
The bobbin was installed in the bobbin case wrong. Remove the bobbin from the bobbin case and reinstall the bobbin according to the instruction manual. … The thread was not wound properly on the bobbin. Wind the bobbin thread properly.
What number should the tension be on a sewing machine?
The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.
Why is the tension wrong on my sewing machine?
Needles, threads, and fabrics: Different thread sizes and types on top and in the bobbin can throw off basic tension settings. A needle that’s too large or small for the thread can also unbalance your stitches, because the size of the hole adds to or reduces the total top tension.
Why does my cotton keep breaking on my sewing machine?
The upper thread tension could be set too tight. Set the tension to the best thread tension setting or less. Make sure the spool of thread is installed correctly using the correct size spool cap for the size of spool. … Check that the bobbin is wound so that it about 80% full and that the thread is evenly wound.
What tension should a bobbin be?
Proper bobbin tension is essential to good embroidery. If tension is too tight, unwanted bobbin thread may begin to show on top of your garment and you may begin to experience frequent thread breaks which wastes time and money. Bobbin tensions should be 18 to 22 grams (up to 25 grams when embroidering caps).
Why does sewing machine keep jamming?
However certain you are that the problem with the machine is most likely due to a huge tangled mess of thread in the bobbin underneath the fabric, the most common reason for the jamming is usually the lack of sufficient tension in the upper thread.
Why are multiple threads coming from bobbin?
If your bobbin tension is too loose, extra thread may unwind from the bobbin, which causes a buildup of thread underneath the needle plate. … The likely culprit: bypassing the thread take up lever. Simply try rethreading your machine (and make sure it’s in the take up lever!). Top tension is too loose.