Why can't the presser foot of the electric sewing machine be put down?

1. First use a flat-blade screwdriver to loosen the mask screw on the sewing machine.
2. Then remove the unscrewed screws and take off the mask of the sewing machine by hand.
3. Then find the press bar on the sewing machine that is responsible for operating the presser foot, and continue to loosen the parts under the press bar with a screwdriver.
4. When all the parts under the pressure bar are loose, you can directly twist and adjust the pressure foot by hand.
5. When adjusting, be sure not to bend the presser foot, and the pin on the presser foot must be aligned with the hole below.
6. When the adjustment is completed, tighten all the parts with a screwdriver, cover the top cover, and restore it. Then the presser foot can be put down normally.
7. The pressure of the presser foot of the sewing machine can be distinguished by the adjustment screw of the machine head. When the coal seam is thicker, the downward pressure is greater; when the coal seam is thinner, the upward pressure is lower. The pressure adjustment function of the press foot machine is to determine the pressure according to the nature of the seam material.