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Hello Murray.On the handle there are 2 plastic finger nuts.Losen these and
take them off the bolts that attaches to the frame.Split the handle and open
it.This is the battery compartment.There should be another set of nuts on
the posts.Tighten these and if this fixes the problem put it back
together.If it doesn't fix the problem wiggle the 2 bolts going into the
frame.If one or both are lose you will have to take the index mirror off of
the top one to tighten.Try not to do this because once the index mirror is
taken off the frame you may have to go through many adjustments that also
involve repositioning the horizon mirror.
As for the horizon glass slideing around perhaps the 3 tension springs or
screws need tightening.Is it a split or whole horizon glass?Either way it
must be corrected and error taken out.
This may be an easy fix or a whole can of worms for you.I would be very
upset with the shipping company or the shipper for not packageing it
properly or handleing it to roughly.I'd be talking to the insurance carrier
or shipper 1st.Did you have shiping insurance on the sextant?Did the sextant
come with it's wooden box?
Hope this helps and write if more questions pop up.You may also want to
invest in "The Sextant Handbook" as I understand it is full of tips.
Doug
----- Original Message -----
From: "Murray Campbell" 
To: 
Sent: Tuesday, December 30, 2003 7:08 PM
Subject: help..astra sextant


> Hello..new to list and to celestial nav, so apologies
> if my question is uninformed...
>
> I bought an old Astra (Nova GLH130-40).  Looks like it
> was in great shape to start with but packaged poorly
> and knocked around quite badly in shipping :-(
>
> The upper screw holding the handle on is loose.  It
> looks like the only way to get at it is to take off
> the index arm, which scares me.  Is this something
> that can be done? There is a plastic cover over a
> large screw, also a collar threaded on with three
> holes to turn it by...
>
> The pieces of the horizon mirror have slid around a
> bit too, i will try to read up on how to adjust it and
> then check the index error..everything else seems to
> move freely and work...should i be really upset about
> this or will this sextant still be functional /
> accurate?? what else should i be checking?? the optics
> and filters and mirror silvering all seem good and the
> mic turns almost perfectly freely
>
> thanks so much for your help....murray
>
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