How to free up wafer switches?

[mike bryce]

jack...

it's not the wafer that's stuck, but rather the shaft that has froze in the
aluminum bearing.

spraying cleaning stuff on the wafer won't cut it (sorry!) but rather you
need to get the lub into the switch's shaft.

I have found that radio shack sells a small needle oiler. A drop or two of
oil placed as far into the switch as possible works.

if you can't reach it from the back, take off the knob and try to get some
oil into the shaft by applying oil to the outside of the shaft..

it takes work and a little bit of elbow grease to free up the switches.


--
Mike Bryce WB8VGE
SunLight Energy Systems
"Electricity at the speed of light"

> From: Jack Crenshaw <jcrens at EARTHLINK.NET>
> Reply-To: Jack Crenshaw <jcrens at EARTHLINK.NET>
> Date: Sun, 22 Oct 2000 12:43:48 -0400
> To: HEATH at LISTSERV.TEMPE.GOV
> Subject: How to free up wafer switches?
>
> Over the last few months, I've bought up a ton of old Heath tube test gear.
> Now that
> most items have arrived, I'm discovering that many of the items have rotary
> wafer
> switches that are either sticking or just plain stuck.  Anybody got any bright
> ideas for
> how to get them working again?
>
> At least one of the bad switches is in a VOM that prob'ly got connected to
> line voltage
> while in ohms mode <ugh!>.  That one I can understand. But most of them are in
> things
> like range switches where there is no appreciable current.
>
> Thanks
>
> Jack
>
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