FarmallCT,
Hope this helps... I don't know the specific part names... but I did watch, listen and document with photos when my husband worked on the clutch of our 1931 Regular.
I know the finger-adjustment is made using the 3 large diameter "screws" on the back side...see photos below. (I do know he said something about putting a bolt into the clutch BEFORE removing it from the tractor... also marking how it was set before removing the clutch. I think the bolt was to turn to take some tension off the clutch fingers).
He made sure to set it all on steel plate when doing the measuring - to be certain it was flat so all measurements would be accurate.
I will try to remember to look in our book to see if I can find a spec on setting the clutch fingers.
I know he did a good job, because the clutch works great on our Regular.
Bolt installed and used to remove tension from clutch fingers (I THINK).
A close-up of the 3 "screws" used to adjust fingers.
This is that screw-unit removed and laid up by where it actually connects to the finger... just to show a view of the entire thing.
This shows the clutch on the flat steel for measuring the height of the finger/top from the flat steel surface...
I know he also built-up the clutch fingers where they make contact with what I believe is called the throw-out bearing and then ground them back into shape (ours were quite worn).
And he put the throw-out bearing on there to make sure he had clearance after adjusting the finger height, before putting the clutch back on the tractor.
AND IF I'M WRONG/MISUNDERSTOOD THE PROCESS...
HOPEFULLY SOMEONE on YT will jump in here and correct my information.