2-1. The timing belt setting.wmv
16/07/2023
4-1. Hook timing.wmv
16/07/2023
3-1. The moving knife setting.wmv
16/07/2023
2-2. The feed dog setting.wmv
16/07/2023
6-2. Adjusting the oil supply volume.wmv
16/07/2023
3-3. The lower thread catcher setting.wmv
16/07/2023