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. By tightening the top tension, the loops will stop, but the added tension may cause breakage, especially with sensitive threads.
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 top thread so tight?
If the bobbin thread was incorrectly threaded, the upper thread may be too tight. … If the upper thread was incorrectly threaded, the upper thread may be too loose. 4. To increase the upper tension – increase the tension setting or turn the knob to the right.
What tension should I use for cotton?
Cotton requires a moderate tension setting, usually between three and four. Always start adjusting your tension settings with your upper tension.
What is the remedy when the upper thread breaks?
Remedies: Check the threading order and thread correctly. Adjust the tension disc. Replace blunt or bent needles.