591_feed dog setting.wmv
16/07/2023
591_replacement of the moving mes.wmv
16/07/2023
591_replacement of the fixed mes.wmv
16/07/2023
591_adjusting the oil supply volum.wmv
16/07/2023
591_placing of the upper thread.wmv
16/07/2023
591_adjusting the hook timing.wmv
16/07/2023