mjskier

Thank you so much!

I see, you are talking about the long bar that acts as a seesaw when pushed by the knee lifter. I did loosen the spring on the vertical shaft that gets pushed up by the knee lifter, but didn't think to look for a spring on the flat bar itself. That spring and screw affect the inside alternating/vibrating foot. Oops, I should have left it alone. How do I know how far to screw it down? I haven't seen it mentioned in the service manual I found online.

Is that the screw you are talking about? It is almost all the way out. The pressure did ease up a bit. Still stiffer than say a domestic sewing machine. I don't have a point of reference for these all machines, so I'm not sure what "stiff" really mean for them.

Sorry to revive this old thread, but since there is a lot of knowledge about the 111G15* I thought that would be a good place rather than starting a new thread. I bought a 111G156. It works fine. But, the presser foot lever is extremely stiff (at least compared to other sewing machines I have used) Nothing binds. But it just require quite a bit of force to bring the lever up and down. Is that common for these machines, or is there potentially a problem with mine? Thank you