COA: 77.77 GBp
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Home • Industry FAQs • Why does the needle thread break?
  1. Is the thread being wound off correctly, if not check to ensure the sewing thread is being pulled off vertically by setting the eyelet from the thread stand directly above the centre of the cone? Also check to ensure the sewing thread is being pulled of the cone smoothly and not being trapped under the cone (spillage), if it is a foam pad could be used under the cone to help prevent trapping if spillage does occur. Check the height of the eyelet above the cone of thread is set at the correct height, this should be around 2 ½ times height of the thread package.
  2. Is the sewing thread getting trapped at the thread guides, check and rethread if required.
  3. Is the sewing thread snarling up before going into the tension discs? If it is increase the wraps on the pre tension thread guides to help reduce this problem or reduce the thread tension and ensure that the tension discs are smooth.
  4. Is the thread quality being used for the operation? Is the thread weak or of an inferior quality or is it a very old thread cone if it is try replacing the thread to see if this resolves the issue.
  5. Are there broken or misaligned parts fitted to the sewing machine? Check to ensure all parts are fitted and working correctly paying particular attention to the check springs on lockstitch machines. Check to ensure check springs are fitted and working correctly, replacing or adjusting as required.
  6. Is the thread fraying at the needle? If so the use of a finer thread or coarser needle as appropriate could help.
  7. Is the needle eye is getting blocked, if it is then excessive needle heat may be causing this problem, try using an alternative finish to the fabric where possible. Change to an alternative needle with better coating, finish or point. Apply a needle lubricant via the thread or you could try to use one or more types of needle cooling devices.
  8. The hook on the sewing machine is very hot. Check the supply of oil getting to the hook and check the needle to hook clearance.
  9. Is the sewing machine threaded correctly, check or double check and rethread as required.
  10. Did the sewing thread have a knot in it and the machine just needs to be rethreaded.
  11. Is the sewing tension (force applied) on the sewing machine to high and breaks the thread. If so the sewing tension needs to be adjusted or the sewing thread used needs to be changed to a stronger or a thicker thread.
  12. Is the needle in the sewing machine damaged in some way e.g. blunt, bent or has a sharp eye and needs to be replaced.
  13. Is the needle used the wrong size and needs to be replaced with a needle of the correct size.
  14. Has the needle been inserted correctly? If not it needs to be removed and inserted correctly.
  15. Is the size of the needle correct for the size of thread used? This may cause the thread to break. Check and change either the needle size or the thread size to ensure a suitable match.
  16. Is the thread take-up lever/spring threaded incorrectly or missing? Is so rethread or replace.