Thanks Roger, very helpful. I believe the couplings are standard in-line
couplings, unfortunately CGB don't have them. DG also mentioned that new
couplings are not of the same standard as the original ones.
Regards, Ben Coleman
Message: 3
Date: Fri, 14 Jan 2011 09:47:13 +1100
From: Roger Druce <rogdr...@optusnet.com.au>
Subject: Re: [Aus-soaring] c
To: "Discussion of issues relating to Soaring in Australia."
<aus-soaring@lists.internode.on.net>
Message-ID: <4d2f80f1.60...@optusnet.com.au>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Ben
The L'Hotellier coupling disassembles by driving out the spring roll pin
in the barrel of the coupling. The roll pin is horizontal and from
memory a 2 mm diameter pin punch (like with Schempp-Hirth gliders) is
the tool you need to tap it out.
The piston is then extracted down the centre of the coupling, and the
rest follows.
I have not been involved in this with any variant such as where sleeves
were involved such as with the LS4's.
I am unaware of where one might get a spare replacement spring other
than by salvaging it from another unit. But then the spring has to be
serviceable. I guess the load test on the locking slide (with coupling
reassembled) as called for in the AD does that. Then again I wouldn't
use one from a rejected/removed coupling with 3,000 hours on it as
springs ultimately exhibit fatigue and fail.
New L'Hotellier couplings are available from CGB Bearings in Melbourne.
But I am not sure how the standard coulpings relate to the variant with
additional sleeve. The couplings really don't cost all that much when
compared to a lot of stuffing around with old parts.
Regards
Roger Druce
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