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From: Alexandre Eremenko (no email)
Date: Wed Nov 10 2004 - 21:36:42 EST
Jared
mentioned the grease and Freiberger sextants,
so I want to ask those who have experience with
Freibergers and SNO-Ts:
Do you ever disassemble the drum?
Does it need inside cleaning?
A strange-looking wrench needed for this comes as a standard
accessory.
I am somewhat afraid to do this: the instruction manual
says: never disassemble the sextant.
But it also mentions periodic maintenance is a special shop:-)
In general, I don't see what is the purpose of this
enclosed drum. If it is to keep the worm assembly clean,
I would rather make is visible and accessible for
cleaning, as in most sextants.
By the way, SNO-T comes with a bottle of oil and the manual
gives the precise description of this oil (some
Soviet standard) and also says:
a substitute can be "Aeroshell Fluid 12"
manufactured by Shell.
Does anyone know what is this?
> suppose that if the standard Soviet sextants
> were assembled with a grease
> that would not freeze up in Arctic use,
> that grease might be unsuitable in
> the tropics, i.e. migrating too much,
> so something as slight as the grease
> might be changed.
The manual describing my "Tropical" sextant says explicitly that
it is suitable for "unlimited region of navigation".
> Maybe the color of the
> sextant?
Maybe. All SNO-T I've seen have the same color: grey.
(And now we know that the T stands for "tropical").
Unlike SMO-M which according to Joel comes in variety
of colors (I see black, green, brown and grey on maurnavy site).
Alex.
On Wed, 10 Nov 2004, Jared Sherman wrote:
> curious to find out what the
> Soviet Navy considered "tropical".
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