2-Thread Overlock Narrow (RN)

Lower looper thread (red) extends over the fabric edge to the bottom.

  1. Increase the LL thread tension (red).
  2. Reduce the RN thread tension (green).

Needle thread (green) doesn't reach the fabric edge.

  1. Reduce the RN thread tension (green).
  2. Increase the LL thread tension (red).

The lower looper thread (red) doesn't reach the fabric edge.

  1. Reduce the LL thread tension (red).
  2. Increase the RN thread tension (green).

Needle thread (green) extends over the fabric edge to the top.

  1. Reduce the LL thread tension (red).
  2. Increase the RN thread tension (green).

The fabric edge forms a tunnel or rolls up.

  1. Increase the Micro Thread Control (mtc)
  2. Reduce the cutting width CW.
  3. Reduce the stitch length SL.
  4. Check the rolled hem lever N/R position.