[R-390] Antenna trim repair

[Cecil Acuff]

I’ve not disassembled and cleaned the cap but the capacitor shaft has high voltage on it and if the insulator through the chassis gets contaminated with oil and metal particles it will cause some of the same problems. It needs to be really clean and dry.  Beyond that I have heard of folks drilling a hole in the cover to allow cleaner to be sprayed in.

Cecil
K5DL

Sent using recycled electrons.

> On Jun 18, 2018, at 8:21 PM, Dave Kirk via R-390 <r-390 at mailman.qth.net> wrote:
> 
> Has anyone had any luck getting into the antenna trim can to clean the cap? The antenna trim on my 390a is intermittent as the knob is turned it acts like the capacitor contacts need a cleaning real bad. The gear on the capacitor shaft is pinned on I'm not quite sure how to remove the pin, maybe drill out the pin ouch! Why the heck did they pin this gear on seems like two set screws with loctite would have worked just fine.
> 
> Dave
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