This pic is of a nasty 66, but it may help. You didn't mention if the presser foot arm is free. It hinges around a screw and has a slide in the case. It has a cam on it to lift the presser foot. Oil both sides of where the slide should lift up and down, then the top of the cam, or as much as you can reach. The screw pivot area and again the presser rod.
So everything here marked with orange. Y[ATTACH=CONFIG]577880[/ATTACH]our 201 will be somewhat different.