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Adjustment procedure:
1. Remove the needle plate and bobbin holder. Attach the master needle. Turn the power switch on and set the
zigzag width at maximum.
2. Remove the face cover.
3. Loosen the setscrew A (2 pcs.).
4. Turn the handwheel toward you. Adjust the clearance between the needle and the tip of the rotarty hook, by
moving the hook base plate up or down, to within –0.1 to +0.05 mm at the left and right needle position.
5. Tighten the setscrew A (2 pcs.).
6. Attach the face cover. Remove the master needle. Attach the bobbin holder and needle pate.
7. Check the clearance between the needle and the edge of the needle hole in the needle plate (see page 10).
* The clearance between the needle and the point of hook should be –0.1 to +0.05 mm.
Clearance between needle and tip of the rotary hook
Mechanical Adjustment
Tip of hook
–0.1 to +0.05 mm
Needle plate
Bobbin holder
Needle bar supporter
adjusting plate
Hexagonal socket screw (A)
