Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Name or NavList Code:
    Re: Old sextant
    From: Bill Morris
    Date: 2024 Jun 27, 14:18 -0700

    Art, you need to rotate the knurled knob behind the frame anti-clockwise. This will push the squared part of the rising piece upwards away from the bracket that is held to the frame by three screws. When it will "rise" no more, you wiggle and pull to release it from the frame. If it won't budge, apply releasing compound, e.g Penetr8, and leave it in a warm place overnight. Repeat until it budges. Then rotate the rising piece through 90 degrees, push it back into the square hole and rotate the knurled knob clockwise to draw it into the bracket.

    Alternatively, remove the knurled knob by removing the small screw that goes through its centre. Pull it off. Turn squared end of the shaft clockwise a couple of turns and gently tap with a soft faced hammer. This should release the rising piece together with the screw that makes it rise and fall, but at the risk of damaging the screw, so think of it as the "if all else fails use brute force" solution.

    it is not to difficult to make your own mirrors at little expense. See "New mirrors for old" at www.sextantbook.com

    Bill Morris


    New Zealand

    Browse Files

    Drop Files


    What is NavList?

    Get a NavList ID Code

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.

    Email Settings

    NavList ID Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site