NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant AN 5851-1
From: Ken Gebhart
Date: 2004 Jun 3, 09:55 -0500
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