If the bobbin winding starts when the thread is not passed through the pretension disk correctly, the thread may become tangled beneath the bobbin winder seat. Wind off the thread according to the following procedure.

(1) Thread (2) Bobbin winder seat

1. If the thread becomes tangled under the bobbin winder seat, press (Stop key) on the screen once to stop the bobbin winding.
   
   
   
   
   
   
    
2. Cut the thread with scissors near the pretension disk.

   (1) Pretension disk

   
   
   
   
    
3. Push the bobbin winder switch to the right, and then raise the bobbin at least 100 mm (4 inches) from the shaft.
   
   
   
   
   
    
4. Cut the thread near the bobbin and hold the thread end of the spool with your left hand. Unwind the thread clockwise near the bobbin winder seat with your right hand as shown below.
   
   
   
   
    
5. Wind the bobbin again.

   Make sure that the thread passes through the pretension disk correctly.