How to repair the broken thread of the old sewing machine?

1, a good way to adjust the thread is to adjust the bottom line first. The bottom thread should be adjusted after the thread core is put into the shuttle sleeve. It is advisable to hold the thread in one hand, and the shuttle sleeve will fall slowly, and then adjust the top thread according to the bottom thread.

2. When adjusting the presser foot, there is friction between the presser foot and the needle. When adjusting the presser foot, shake the presser foot left and right to see if it will touch the needle.

3. When adjusting the shuttle bed, the distance between the needle hook and the needle groove should be 0. 1 mm, and if it is less than 0. 1mm, it is easy to break the needle. ..

4. Tighten the screw at the top of the presser foot to make it have a certain pressure.

5. When sewing, press your feet out of the cloth and disconnect the thread.

6. When adjusting the needle bar, put the shuttle sleeve on the needle plate. The needle bar has just been adjusted to the height of the shuttle sleeve, and then the shuttle bed is adjusted.

7. It is recommended to use a round needle, but the price is a bit expensive.