Never did figure out where screw C5 is, but after a thorough cleaning, this thing is typing amazingly well; easily keeping up with me at my fastest. Wonderful typer.

Moving on to other issues: This typewriter is really loud when I have the paper guide down, in its normal position. When I turn it up, the machine quiets right down. I'm thinking it's because it's smacking against the rock-hard platen. When I adjust its resting position so it doesn't make much noise, it's more than a 1/4" off the platen and doesn't prevent paper from curling back around the platen (i.e. it doesn't do its job anymore). 

It looks like there was adhesive on it at some point: Was it normal to have some acoustic felt under this when it came from the factory? 




Also, anyone know what the "7.6" means on the segment cover?




Finally: The chrome on the coming off the line advance lever (in a big chunk, too). Is this really chrome, or is this a chrome-looking plastic? I.e. to fix this, do I strip it and chrome it?

Thanks!

I think you may have it. When I set my calipers at 7.6mm and set it on the type slugs, I see:

 


Thanks for the tips! I'll give them a try. (I might wait on the rechroming until I have more parts that need that - it's serviceable as it is now).