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    Re: Sextant AN 5851-1
    From: Ken Gebhart
    Date: 2004 Jun 3, 09:55 -0500

    on 6/2/04 11:22 PM, Peter Henry at peterghenry@EARTHLINK.NET wrote:
    
    > I have a Navy Mark V (AN 5851-1) sextant which I purchased last winter and
    > have been using occasional.  When I purchased the sextant it had not been
    > used for a very long time I removed all of the housing and cleaned it in
    > it's entirety.  The bubble on recite was very large and unadjustable but
    > with the replacement of the o ring at the thimble pressure pump and
    > persistent attempts at using it I was able to get the bubble to adjust from
    > large to small and back.  I would also like to note that since I a have
    > received the instrument I has had a distinct sent which could be the bubble
    > fluid and that the I have stored it with this loose per a note typed on a
    > piece of paper in the box which reads as follows. " Important, Always return
    > bubble control nut to neutral when not using the instrument. (nut should
    > spin freely) Leaving pressure on diaphragm damages bubble unit beyond
    > repair."
    >
    > Recently I took the unit out of it's case for the first time in a month and
    > the bubble is back to it's large size and I am not able to reduce it.  I am
    > wondering of the fluid needs to be refilled. If so what is the fluid and
    > where does one get the fluid and how is refilling it accomplished?  Is the
    > diaphragm damaged? If it is how can I repair or replace it?  I would greatly
    > appreciate any questions and assistance that one might give me.
    >
    > Sincerely,
    >
    > Peter Henry
    >
    Dear Peter,
    
    Yes, I can tell you everything, but don't have the time to write a 2 page
    letter now. Please phone me at 316-686-9785 (W) or 316-686-4857 (H).
    
    Ken Gebhart
    
    
    

       
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