[R-390] Re: R-390A BFO PROBLEM

[Flowertime01 at wmconnect.com]

Drew,

Right on and good point. (pun intended)

This is a good idea for several of the set screws.
The knob on the antenna trim comes to mind.

You can stick the set screw on the end of the spline wrench with a bit of 
grease and use that to hold the set screw against the grinding wheel. You are not 
likely going to be able to file the end of the set screws by hand.

Roger AI4NI
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To that I would add:

When you reinstall the bellows and tighten the
setscrews, they will raise a burr that will cause the
problem to recur next time you try to diassemble.

I ground the cup point off the setscrews before
reinstalling.  The new slightly rounded point grips
the shaft with no problems and does not mar the shaft.

Drew   </HTML>