• Make sure the needle is correctly inserted with the flat side facing the back and pushed up into the machine as far as possible.
  
  
• The needle could have been damaged or bent.
  If so replace with a new one.
  
  
• Make sure the fabric is not pulled excessively when sewing.
  Let the feed dogs move the fabric.
  Do not pull the fabric.
  
  
• The combination of needle size, thread size and fabric is incorrect.
  Be sure to use the correct needle and thread size for the fabric you are sewing.
  (example: Denim-size 16 needle and 40-50 heavy duty thread).

One Point Advice   Combination of fabric, thread and needle