Follow-up:
My brother, who is very adept at Fixing Things, tried, but could not get the
mechanism back together the way it was. So, I purchased a new-to-me 55mm. It's
beautiful.
-----Original Message-----
From: dickburk@xxxxxxxxxxxxx
Sent: Wed, 8 Jul 2020 18:34:05 -0700
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: C330 55mm lens
I would investigate repairing it. If too expensive you might
try it yourself. I have not had a chance to see if there are any
repair books on line.
Later, a google search got some hits.
Not sure if this is the same shutter:
<https://www.refracted.net/komaflex-s.html>
Not sure what is here:
<https://learncamerarepair.com/product.php?product=691>
May be similar:
<https://www.cameramanuals.org/mamiya_pdf/mamiya_seiko_shutter.pdf>
Some interesting notes:
<https://manualzz.com/doc/1030331/mamiya-c330f-professional-repair-manual>
Lots of pictures, no PDF but has printer friendly pages.
<https://pheugo.com/cameras/index.php?page=seikosha>
There is more. The search string I used was
seikosha s repair manual
What you need:
A set of jeweler's screwdrivers. Cheap ones will do.
Its helpful to have a couple of DuMont style non-magnetic
tweezers but even regular make up tweezers will do.
I have recently been using Caig Labs Deoxit 5, an electronic
contact cleaner as a lubricant. Seems to work. I apply it with a
small artist's brush.
A magnifying glass, a jeweler's loup is good. You can get
reading glasses at the 99c store for 99c. These are often very
expensive ones marked down.
It helps to have some specialized tools but I am not sure
which ones, if any, you need. If a lever has been pushed out of
place you will see it pretty quickly. Work in a shallow box and
make sure the corners and edges don't have holes. This will
prevent losing screws and small parts. I use old medicine bottles
for parts, also small freezer bags work well. A close visual
inspection will probably find the trouble. Most shutters are not
very complex. Don't get fatigued and have a good strong light to
work with.
Good luck and report what you find. Since its broken you
really can't break it further. Have a shot at it.
--
Richard Knoppow
dickburk@xxxxxxxxxxxxx
WB6KBL
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