13
Adjustment procedure:
1. Remove the setscrews A (2 pcs.) on the needle plate, the needle plate and the bobbin holder.
2. Attach the master needle. Turn the power switch on and set the zigzag width at maximum.
3. Open the face cover.
4. Loosen the setscrews B (2 pcs.).
5. Turn the handwheel toward you. Adjust the clearance between the needle and the tip of the rotary hook, by
moving the needle bar supporter adjusting plate up or down, to within –0.10 to +0.05 mm at the left and right
needle position.
6. Tighten the setscrews B (2 pcs.).
7. Attach the face cover. Remove the master needle. Attach the bobbin holder and needle pate.
8. Check the clearance between the needle and the edge of the needle plate hole (see page 10).
* The clearance between the needle and the point of hook should be –0.10 to +0.05 mm.
CLEARANCE BETWEEN NEEDLE AND TIP OF THE ROTARY HOOK
MECHANICAL ADJUSTMENT
–0.10 to +0.05 mm
Needle bar supporter
adjusting plate
Tip of the rotary hook
Bobbin holder
Needle plate
Setscrew A
Setscrew A
Setscrew B