Step 1: turn off the power supply and install sewing machine needles to make the needle
Stay at the top.
Step 2: loosen No. 2 and No. 3 screws
Step 3: rotate the clockwork counterclockwise and rotate more
Circle, visually check whether the sewing machine needles swing around and hit the button hole maker. If there is a collision, move the No. 2 3 screw to adjust until there is no collision, tighten the No. 2 3 screw. Adjust No. 1 screw if it hits back and forth
Step 4: rotate the handwheel of the sewing machine and move the needle up and down
Check whether sewing machine needles hits button hole maker. Repeat Step 3 until the square Port is adjusted and used.
Note:
Modification supplies, please try to slow down the use speed to lock the best effect.
This product is not suitable for elastic fabrics
Button hole maker installed, not firing pin, but can't lock the eye is not button hole maker problem, it is sewing machine sewing machine needles