Adjustment (Main Unit)
Needle interference left/right adjustment.
1. Turn the pulley by hand, and insert the tip of the needle into the needle hole.
2. Loosen the screw (3X10).
3. Adjust the needle holder shaft block to the left or right so that the left base line / right base line needle drop is
uniform forward and back with respect to the needle plate A hole.
4. Tighten the screw (3X10).
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