Singer 401a bobbin winding

[@Gopherdave1]

I thought the spring was broken on mine because I had to hold it. Thanks for your video explaining how it works.

[@sheliolney5701]

Yes it did help tysm

[@lesabooth5243]

I can't loosen the inner thingy

[@MelindasLifeandstyle]

Which part do you mean. I will try to help