I removed a mechanical vario from our club glider which was stuck on 5 =
m/s
down and had water behind the front face.

Thinking I would not loose much, I carefully removed the front face and
drained about 0.5 oz of gooky water from the instrument and let it air =
dry.
Unfortunately, it remains stuck on 5 m/s and the next step of =
disassembly is
not immediately intuitive.

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The only signs on the instrument are on the front face as follows:

1. An insignia consisting of a star inside small shield which in turn
has a small 3-feathered wing on the right upper side.
2. UL 31-10 is given on the right hand side above the pointer support.
3. No 9525163 is given on the right hand side below the pointer
support.
4. The scale of +/- 5 m/s on the left hand side.

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The back of the instrument has a staked hose bib for the static port or =
TE
probe port. I hope that if I un-stake and unscrew the bib, the whole =
unit
will come out of its case.

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Here are my questions

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1. What is the make of the instrument? Will I find service instruction
on their website?
2. Is it repairable? By me? Or must I send it in to a repair shop.
3. What are the next steps in taking it apart and cleaning it?
4. Is it worth while to send it to a repair shop? Any suggestion to
whom?

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Any suggestions are welcome. I figure in the worst case I will learn how
such an instrument is built; and in the best case I will get it back to
function usefully in some fashion.

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Heinz



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