[R-390] Any advice for removing sheared machine screws...?

[Larry H]

Hi Jordan,  I had 3 I had to do.  One I was able to remove by using a
small screwdriver and taping on a burr on the end of the screw shaft at a
90 degree angle to get it to rotate the direction I wanted.  It was slow,
but worked because it was not tight in the panel.

The other two, I had to drill a small hole in the screw shaft and then use
a jewelers screwdriver (that fit tightly in the hole) to remove it.
Worked great.

Good luck.

Regards, Larry

On Sun, Oct 3, 2021 at 11:05 AM Jordan Arndt <Outposter30 at shaw.ca> wrote:

> Hi group,
>
> I'm trying to figure out the best way to try and remove 2 of the 4 machine
> screws that hold the frequency readout "cover" on a 390A. They were
> sheared
> off at some point and there is not enough metal left to get any kind of
> grip
> with any kind of tool that I have.
>
> I can see that one "stub" has a central divot from a drill bit, and the
> other is just a mangled down to where it exits the front panel.
>
> I will likely try to cut a slot in what's left of the metal with my Dremel
> tool, and see if I can get enough grip with a small screwdriver to unscrew
> the remnants, but I have my doubts because I expect they were badly
> overtorqued and likely held tight in the threads...
> I have to pull the front panel anyway, so I'll get a look at things from
> the
> rear of the front panel when I do that...
>
> Any tips or pointers out there...??
>
> 73...Jordan VE6ZT
>
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