Threading a rotary style bobbin case and setting tension

See how to properly thread a rotary style bobbin case and then set the tension on the bobbin case
Check out my Sewing Machine Repair and Service University:
https://www.sewvacretailresources.com/offers/Kpn93Nws

Видео Threading a rotary style bobbin case and setting tension канала Sew Vac Retail Resources