[GreenKeys] Model 15 main shaft removal/disassembly/reassembly - instructions?

[John Nagle]

    Well, on the Model 15 I'm trying to restore, all three clutches on 
the main shaft are stuck.  By "stuck", I mean "will not slide at all
even when pushed hard". This machine was lubricated with the wrong
lube, and all the light fractions evaporated, leaving the asphalt
part of petroleum behind.  The big soak in solvent got most of
the parts freed up, but where there are parts in tight contact,
like the dashpot piston, the solvent can't get in and the parts
are frozen together.

   The dashpot piston was frozen, and when I finally got the piston
out, there was an asphalt-like streak.  Removing that fixed the
problem.  It looks like the main shaft will need similar
treatment.

   I've never disassembled a main shaft.  Are there instructions?
I have the three standard Model 15 manuals (Description, Adjustments,
and Parts), but none of them have a detailed procedure.
Is there one in some military manual, perhaps?  Thanks.

			John Nagle