Common faults and maintenance of household sewing machines

Nowadays, household sewing machines have generally entered the society. What should I do if the sewing machine cannot run during the sewing process? The following are the common faults and maintenance methods of the sewing machine

1. Common faults and maintenance of household sewing machines There is thread hair under the sewing material, and there is a sound of interrupting fibers when sewing

The main reason: the tip of the machine needle is broken or too blunt.

Solution: Replace with a brand new needle.

2. Sewing materials are stagnant

The main reason: the cloth feed dog is too low, and the pressure of the presser foot is too high.

Solution: Raise the feed dog and tighten the pressure adjusting screw.

3. The sewing material goes back and forth

The main reason: the cloth feed tooth is too high.

Solution: adjust the feed dog.

4. The sewing material cannot be sewed backwards

The main reason: the cloth feeding cam shifts.

Solution: Adjust the position of the feed cam.

5. The sewing material is irregularly slanted

The main reason: the feeding dog is crooked or the screw of the feeding dog is loose.

Solution: Correct the feed dog and tighten the feed dog screw.