Thread breakage: A thread breakage on a sewing machine is when the hook at the bottom of the machine fails to hook the thread or when the thread slips off behind the hook and does not form a continuous line step.
2021-11
1. Incorrect threading method, please rethread according to the "threading chart".
2. The needle is incorrectly fitted. Reinstall the needle so that the needle slot faces the operator.
3. The needle eye and groove are not smooth. Replace the needle with a new one.
4. Sewing thread tension is too high, adjust the thread tension appropriately.
5. The quality of the stitching thread is too poor, replace it with a better one.
6. The stitching thread is thicker than the eye of the needle, so replace it with a medium stitch or machine needle.
7. The machine needle, bent needle, needle plate, pressed tongue, overstitching hole and other overstitching holes have burrs or scratches, re-sand them with an oil stone or fine sandpaper, or replace the scratched part with a YouYo resource.
8. If the machine needle does not fit properly with the bending and extending needles, readjust the machine needle in accordance with the standard of fit with the bending and extending needles.
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