Ok,.. that rod has a new number, so it can be replaced:
http://www.sewingpartsonline.com/bob...45827-451.aspx
If you look at that picture you can see where the actuator connects to it. The set screw goes against the flat side, so it doesn't turn.
The actuator (you'll see steps on the top side of it) then pushes on the metal piece that moves the bobbin case up into winding mode.