Archived posting to the Leica Users Group, 2001/06/09

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: Re: [Leica] M6 shutter-release problem
From: "Mitch Brown" <leicameter@hotmail.com>
Date: Sat, 09 Jun 2001 22:45:46 +1200

>>I have a problem with the shutter release of a used M6 that I just
>>bought by mail.
>>
>>Does anyone know if this is a simple adjustment that I, carefully,
>>could do as a user with a reasonable understanding of mechanics but
>>modest experience in camera repair? Would any special tools be
>>needed? Would I run a high risk of destroying something.


>
>It's fairly simple, and if your camera has nothing else that needs
>looking at, then you might do it yourself if you are handy and have a
>good set of small tools. If you take off the cover (with the film
>loading diagram, you will see a long spring arm that moves down with
>the shutter button. It engages the actual release mechanism by
>sliding along a sloped piece right by the winder cog. You will see
>that the lateral position of this long spring arm is what governs the
>release point, and the two big screws held by loktite near the other
>end (film cassette end) hold the spring arm in place. You will have
>to loosen these two screws, move the spring arm very slightly, and
>retighten and re-loktite these screws. I should only take an
>experienced technician 5 minutes to do the job, as no other
>disassembly is required.
>
>Hope this helps.
>
>--
>    *            Henning J. Wulff


There are some precautions you should take when attempting this adjustment. 
Firstly those little screws that hold the cover plate on are very, very tiny 
and easy to lose, therefore I suggest that you place a light colored blanket 
or towel on the table that you will be using to work on the camera. Then if 
you drop one of the little screws it won't go bouncing off the table never 
to found again. Secondly be very careful not to dislodge or drop the ultra 
thin shims that are held in place at one end of the camera by two of the 
aforementioned screws which go through the cover plate and through locating 
holes in these shims. If you drop those shims you will have a devil of a job 
trying to line them up again. These shims are used to get the right height 
for the main base plate catch mechanism.

You then will have to move the long leaf spring slightly (and I mean ultra 
slightly) towards the back of the camera i.e. the back flap side.
Tighten the two large leaf spring retaining screws and try your shutter 
release. You may have to adjust the leaf spring again to get it right. If 
you move the leaf spring too far away from the back of the camera, it will 
fire when you wind the shutter. When you get it right do as Henry suggested 
and place a very tiny, tiny amount of loctite on the two leaf spring 
retaining screws. A quality set of jewelers screwdrivers
will be needed to avoid damaging the screws. Take your time and use a good 
light source and you should be right.
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

Replies: Reply from Henning Wulff <henningw@archiphoto.com> (Re: [Leica] M6 shutter-release problem)