When selecting pattern N°. 1, the needle should be in centre position of needle slot in the
needle plate, or when the needle swing is in maximum zigzag width, the distance between
both sides of needle slot in the needle plate and the needle positions should be equal.
If not, adjust as follows:
Turn on the power switch.
Select pattern 1 or pattern 2 at maximum zigzag width.
Loosen the screw A.
Turn the eccentric pin B to adjust the needle centring.
Tighten the screw A
Check the hook timing after this adjustment.