[R-390] RF Deck done

[ka9egw at britewerkz.com]

Long hobby day.  6 hours start to finish.  Complete geartrain disassembly,
cleaning with various nasty solvents, giving up [running out of brake
cleaner, carb cleaner and diesel starting fluid] and soaking all the gears
in a 1:3 solution of green cleaner followed by a toothbrush and compressed
air, label and pull the slug racks, green cleaner and a hose on the rf deck
[after taping the transformer tops], 2 hours in the oven, dry trial-fit
reassembly, everything turns, the only leftover parts are a stack of .003
[approx] shim washers I have to look at the army manual to figure out where
they go, and as it is now you can cruise the 10-turn range with one finger
on the thingy that goes on last right behind the kc-change knob.  Of course,
that's without the counter or the pto hooked up.  Next is disassembly and
judicious lubrication, followed by retiming all the cams.  Only fly in the
ointment is I'm guessing this set got dropped on the kilocycle change knob
at some point--the shaft has about .030 runout.  Just enough to be really
annoying.  Nost of hte binding was coming from the disc rubbing on the
clutch gear.  V-blocks and the arbor press will fix it.  Unless anyone has a
spare they'll part with?

By the way, what's the deal with the taper pin on that shaft?  the end of it
that sticks out interfered with the clamp ever seating square.  2 minutes
with a jeweler's file fixed that.

Still trying to figure out the alignment of the geneva mechanism at 7000[+].
[7999+1 in other words].  Not clear on what it does.  I know Jan Skirrow
says there's only one alignment of that mech will roll the bandswitch over
when changing from 7Mc to 8Mc...tomorrow's another day.

Also, on the back of the RF deck, not visible until it was removed, was a
red hang tag with no writing.  Any ideas what that was about?

I'm expecting to have the deck back in the radio by quitting time tomorrow.

Monday I aim to get prices from Kinko's and the like for prints of those
docs.

73, Brian KA9EGW