Putting right a 1956 Singer 201k that was feeling a bit sluggish and cranky. So I am replacing the belt and giving it a good oil and a clean. I also remove the bobbin carrier and show this delicate procedure in detail so it should help anyone else who needs to clean the rotating hook and bobbin carrier on their machine. This is a long film as I decided to show everything I did to the machine. I hope you enjoy it and find it helpful. Regards Harry