I was able to walk through a few diagnistic things when Bill said, "You can take the tension by removing the drawband."
That was a good idea, but I only had two hands to do this and there is a good chance I would have lost control of the the drawband causing damage to my fingers and havoc to my typewriter.
Royal's engineers thought of that and provided a handy screw for temorarily affixing the drawband to the body.
I could see that this feature might also be helpful if you were trying to fit a new drawband.
My KMG, FP, and HH all have this little knobly screw. I would have to check the other Royal desktops when I get home, but this was new to me and I could see it being a handy little thing.