Next message: Ken Gebhart: "AN 5851-1"
on 6/2/04 11:22 PM, Peter Henry at 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
