1. Cleaning the sewing machine: Cleaning the sewing machine can help reduce the accumulation of impurities, thereby increasing the efficiency of the sewing machine. You can use some detergents and brushes to help clean the dust and impurities in the sewing machine.
2. Replace failed parts: If you find that some parts in the sewing machine have problems, such as worn gears, then you need to replace these parts. You can choose to buy new parts or contact a professional repairman to help replace them.
3. Adjust the presser foot height: If you find that the presser foot height is not adjusted correctly, you can solve this problem by adjusting the presser foot height. You can refer to the user manual of the sewing machine for correct operation.
