Milkman:
The clutch tear down, cleaning and assembly were not difficult and tractor is running again. The throughout bearing in the clutch mechanism was easy to replace with a standard bearing available locally.
However I continue to look for a "Chilton's / Haynes - type" repair manual for BCS. I am looking forward to learning about any 'step-by-step, shade-tree-mechanic-type' repair manual suggestions.
I continue to make progress on this tractor. I have worked through the engine, clutch, and transmission with superficial mechanical repairs. The drive train is OK up to the slider. Currently I cannot drive, under load, any of the implements that came with the tractor . I bought a new slider and will repair the 'slide lever'. Hopefully that will be enough to get the PTO-driven implements operating properly.
Thanks