30
Should be 
parallel
Mechanical adjustment
Presser bar lifter position
The clearance between the presser foot and the surface of the needle plate should be 6 mm when the presser foot is 
raised. The presser foot (zigzag foot A) should be parallel to the slot of the feed dog teeth when attached.
Zigzag foot (A)
6 mm
Zigzag foot (A)
Slot
Setscrew
To adjust:
1.  Attach the zigzag foot (A). Lower the feed dog.
2.  Turn the power switch ON. Press the presser foot lifter  
  button to lower the presser foot. Turn the power switch 
 OFF.
3.  Raise the presser foot with the presser foot lifter.
  * You must use the presser foot lifter to raise the 
    presser foot for this adjustment, otherwise you 
    cannot adjust the presser foot height correctly.
4.  Open the face plate. Place the 6 mm spacer (block)    
  between the presser foot and the needle plate.
  Loosen the setscrew on the presser bar supporter(use 
  an  Allen wrench of 2 mm width across ats).
5.  Adjust the presser foot direction as illustrated so the 
  slot for the feed dog teeth and the zigzag foot should 
  be  parallel.  Tighten the setscrew while depressing the 
  foot against the spacer.
Needle plate
Presser foot bar supporter
Spacer