3-Thread Coverstitch Wide (LC-RC)

Needle thread (yellow or blue) forms loops on bottom side of the fabric.

  1. Increase the needle thread tension (yellow or blue).
  2. Reduce the CL thread tension (purple).
  3. Increase the stitch length SL.
  4. Check threading path.

The chain looper (purple) thread loose on the bottom side of fabric.

  1. Increase the CL thread tension (purple).
  2. Increase the stitch length SL.
  3. Check threading path.

Chain looper (purple) thread too tense, seam is tunneling.

  1. Reduce the CL thread tension (purple).
  2. Reduce the stitch length SL.
  3. Check threading path.

The seam puckers. Needle thread (yellow or blue) too tense.

  1. Reduce the needle thread tension (yellow or blue).
  2. Set the differential feed between 1 and 0.6 (Stretching).
  3. Reduce the stitch length SL.