23
Mechanical adjustment
Needle threader hook position
1. Push down the threader lever and hold it just before 
  the threader hook enters the needle eye.
2. If the threader hook is not aligned vertically with the    
  needle eye, loosen the setscrew A. Adjust the stopper   
  position so that the hook enters into the needle eye.
  Tighten the setscrew A.
3.  If the threader hook is not aligned leterally with the    
  needle eye, loosen the setscrew B. Adjust the lateral    
  position so that the hook enters into the needle eye.
  Tighten the setscrew B.
Setscrew B
Setscrew A
Stopper