This is how I did it.
I stood my FW up on end...protected from tipping over with some stacks of books. I applied a drop of Liquid Wrench to the screw and then let it soak in for several hours--still leaving the machine in the upright position.
Every few hours I added another drop of LW and then let it set overnight. It took awhile but it finally came out.
I had to do the same thing to the gib, itself, as it wouldn't swing out as it's supposed to.
I tried the heat from the hairdrier but the heat blowing onto the LW made a spark!!!
After I took the tiny gib screw out I taped it to a piece of paper and then placed the paper in a baggie....just so no one would accidently throw it out.