[R-390] Metal strips on inside of 390A's side panels?

[Barry]

Tim,

Those strips are spot-welded, not glued, to the side panels.  It is a clever
way to gain extra support for the main shelf.  The weight rests on these
instead of relying on the shear strength of those little #6-32 screws.  All
the screws do is keep the center shelf tight against the side panels while
the spot-welded strips take the weight.  Also, it helps keep the center
panel at precisely the right height so that the controls will be centered as
closely as possible.

Barry - N4BUQ

----- Original Message -----
From: "Tim Shoppa" <shoppa_r390a at trailing-edge.com>
To: <r-390 at mailman.qth.net>
Sent: Sunday, January 15, 2006 7:09 AM
Subject: [R-390] Metal strips on inside of 390A's side panels?


> On the inside of a R-390A's side panels, there are these aluminum
> strips above and below the main deck. They're like 3/64" thick and
> 8" or 10" long and 1/2" or so wide. (Actually the left ones seem
> to be different than the right ones). They seem to be glued on
> (they've fallen off in a couple of places on my yellow striper.)
>
> What are these for? The main deck plate is attached by seven
> screws on the left side and 5 screws on the right side, so clearly they
> aren't there for locating the main deck plate. The modules seem to be
> very licely located onto the main deck plate by the green screws.
>
> Maybe the side strips help locate a module when access is poor or the
> whole rig is on its side or something?
>
> Any insight for a newbie like me?
>
> Tim.
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