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    R: Re: R: Refilling Mk IXA Bubble Sextant
    From: Giuseppe Menga
    Date: 2004 Feb 26, 16:36 +0100

    1) I took it out, it is very easy to take all the bubble mechanism off the
    half frame of the sextant. It may only be glued with by the paint at the
    diafram cell.
    2) I just cut away the top of the needle where the soldering is
    3) reverse I mean up down
    4) the only document I have is the file present in the web page, if you want
    I can send it to you, but I think you also have read it.
    Don't be so problematic, the job is really easy
    -----Messaggio Originale-----
    Da: "Zvi Doron" 
    Data invio: gioved? 26 febbraio 2004 14.41
    Oggetto: Re: R: Refilling Mk IXA Bubble Sextant
    > Thanks for the instructions Giuseppe,
    > Just a few clarifications please:
    > I Intend to take the bubble mechanism out of the sextant's left half frame
    > by unscrewing the 3 holding screws. It seems that it will be easier to
    > this way. Is that how you done it, or is there any advantage in doing it
    > with the bubble mechanism attached to the frame?
    > The sodering point at the top of the cylinder - do you unsolder it, or cut
    > it off?
    > I am not sure what you mean by "reverse the sextant". My inclination is to
    > do the whole operation with the top of the vertical cylinder pointing up?
    > do you mean forward to backward? sorry if I sound stupid...
    > Do you hapen to have that PDF file that Robert Eno generated?
    > Thanks again
    > Zvi
    > ----- Original Message -----
    > From: Giuseppe Menga 
    > To: 
    > Sent: 26 February 2004 08:58
    > Subject: R: Refilling Mk IXA Bubble Sextant
    > I did the job for myself.
    > These are the steps I followed:
    > 1) make sure the chamber is dry.
    > 2) open the soldering point and with a syringe fill on the hexane.
    > 3) the quantity is not critical (I filled up completely), however if you
    > leave the
    >     hole open it will shortly evaporate a little bit.
    > 4) loading and unloading the diafram fill the visible chamber with liquid.
    > 5) then, reverse the sextant and load the diafram, just a little - the
    > bobble will appear
    > 6) if the bubble is too big in the right position tilt the sextant so that
    > the bubble         finish on the border at hour 10 (in the view your
    > left-up) - you see a small dent     in the border  of the     chamber and
    > release the diafram the bubble will             slowly disappear.
    > 7) if the bubble size is ok release the diafram with the bubble away from
    > the dent     on the border
    > 8) when every thing is ok resold the hole.
    > Giuseppe

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