Film curtain crank on Mamiya 7

Maine-iac

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Oct 12, 2004

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Island Heigh

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Med. Format RF

• Jul 15, 2007

• #1

The little fold-down tab for opening and closing the film curtain on the bottom of my M-7 split. I got a replacement from Mamiya, but no instructions on how to take the old one off. It appears to have a pin, similar to that which holds a watch-band on the watch, but the clearance is so tight that not even my tiniest jeweler's screwdriver will help.

Anybody know the answer to this?

Larry

 

Loose Gravel

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Feb 28, 2003

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Santa Barbar

• Jul 15, 2007

• #2

Call the parts house you bought it from and ask them. I replaced a part on my M7 and they were most helpful.

 

Paolo Saccheri

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Nov 16, 2012

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Med. Format RF

• Nov 16, 2012

• #3

Hello

just to let you know I make spare solid brass levers (crank) for M7 that last forever! I add a simple instruction document with photos for a step by step DIY job.
if anybody would ever need one, just let me know!

all the best
Paolo

 

AgX

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• Nov 16, 2012

• #4

I can only guess how that foldable crank is fixed. Most probably it is a plain steel pin (that has to be driven out to release the crank).

At model-craft shops you shall find steel wires of apt thickness. Cut off a short piece, flatten the ends and use it as a driving pin.
Maybe you'll find at your home a tiny nail or needle of apt thickness, then proceed as above.


EDIT:
I just had a more closer look at a photo of a Mamiya 7 II bottom plate; the crank seems fixed different from what I thought above.

 

Last edited by a moderator: Nov 16, 2012

Curt

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• Nov 16, 2012

• #5

Can you take a digital picture of it? I've one like that.