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5X7 Press Shutter Rebuild Underway
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semihemi



Joined: 25 Oct 2003
Posts: 85
Location: Boston, MA

PostPosted: Wed Mar 19, 2008 5:24 am    Post subject: 5X7 Press Shutter Rebuild Underway Reply with quote

Hello all - Long time incommunicado on the fate of the Press 5x7 that suffered curtain failure a few years ago. Bert, you may remember that I was not sure if the curtain had torn or if the straps had let go. As it turns out, after a top to bottom lube on the shutter mechanism/rollers, the shutter was a bit too free wheeling. First time I shot it, the curtain straps parted and the shutter lost tension, shall we say, rather dramatically.

Fast forward a few years. Tonight I disassembled the camera and along with the above diagnosis, came up with a few observations and a few questions as well.

In the observation department: the shutter curtain in this camera is beautifully finished, much more so than the curtain in my Series B. The curtain edges are nicely folded over on themselves in order to provide reinforcement. The spars that keep the slits on their best behavior are quite a bit larger than the spars on my 4x5. They are pinned or riveted at the ends. They look as if they might actually lend themselves to reuse, which is not something I felt inclined to do when rebuilding my 4x5. The fabric is hopelessly aged. No amount of Pledge or wishful thinking is going to bring it back. The shutter spring survived the explosive decompression with no apparent ill effects. (Bert, it really is like the clock spring you mentioned years ago.) It still coils patiently inside the mechanism.

On the question side, the top roller of the curtain came right out of the camera. The bottom won't quite slide over far enough to allow one side to lift out. It just misses. Does anyone know if there is a trick to popping it out? Or must the mirror box be moved out of the way? Or can the new curtain be put on without taking the spool out completely?

In the interest of saving time and effort, I would be willing to buy a prefabricated curtain. Does anyone know if they are still available anywhere?

I will keep you posted on progress.

Thanks,

Semi
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bertsaunders



Joined: 20 May 2001
Posts: 577
Location: Bakersfield California

PostPosted: Wed Mar 19, 2008 7:50 pm    Post subject: Press curtain Reply with quote

Semi,
Had no problems removing the bottom roller in my (2) Press cameras, did you remove the roller bushing on the release lever side??
Have a nice day....Bert
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semihemi



Joined: 25 Oct 2003
Posts: 85
Location: Boston, MA

PostPosted: Thu Mar 20, 2008 1:06 am    Post subject: Re: Press curtain Reply with quote

Hi Bert - I unscrewed and removed the female part of the bushing assembly from the release lever side of the body. I removed the hardware from the other side of the camera also. My instinct is to slide the roller away from the release lever side and thereby allow that end of the roller to pop up and out. However I cannot slide the roller quite far enough over to get enough clearance to lift the end up and out. Is it safe to assume the roller comes out as one piece, without needing to first remove one of the male projections on the roller?

Thanks, John


bertsaunders wrote:
Semi,
Had no problems removing the bottom roller in my (2) Press cameras, did you remove the roller bushing on the release lever side??
Have a nice day....Bert
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bertsaunders



Joined: 20 May 2001
Posts: 577
Location: Bakersfield California

PostPosted: Thu Mar 20, 2008 4:35 pm    Post subject: 5x7 Press problem Reply with quote

Semi,
I have one of mine torn down, and to refresh my memory on the problem I had removing the bottom roll, I dug out the curtain and the body........as with all SLR models, the first thing I did was.....roll the curtain onto the top roller! (Body has no hardware in place)!
Next, with the back of the body facing up, I pulled the roll to the right....thru the opening on the hardware side, until the roller was free on the release side.....release side raised straight >up< and >out< at about a 45 deg angle, until bottom of the flange clears the long inside panel on the hardware side......hardware end will then clear the body cavity, and voila........success at last!
Probably easier said than done, but that is the way I had to do it with both of mine!
Have fun.......and have a nice day..........Bert
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bertsaunders



Joined: 20 May 2001
Posts: 577
Location: Bakersfield California

PostPosted: Sat Mar 22, 2008 4:59 pm    Post subject: Press roller removal Reply with quote

Semi and I have exchanged several photos trying to find a reason he cannot remove the bottom roller from the body of his press....have come to a solution, .....have determined that he has not removed enough parts from the inside of the body.....the one part he needs to remove is on the hardware side...the piece is a triangular shaped mirror support....2 screws at about a 15 deg angle holding the piece in place, the support is inset 3/8" from the back of the body (and parallel to it)....at the top a 3rd screw in a strap that attaches on the flat above the mirror shaft!
If anyone else is interested in the photos we have taken, I will be glad to share them with anyone interested! Not to many press cameras floating around, so maybe all the responce I get....will be silence...
Hope you are all enjoying this Holiday weekend....Bert
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David A. Goldfarb



Joined: 03 Sep 2004
Posts: 142
Location: New York City

PostPosted: Sat Mar 22, 2008 8:03 pm    Post subject: Reply with quote

I'd be interested in the photos. I've sent you a PM with my e-mail address.
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willysmb



Joined: 28 Feb 2004
Posts: 114
Location: France _ Europe

PostPosted: Sun Mar 23, 2008 9:30 am    Post subject: Reply with quote

I'd be interested in the photos too.
As you know, my Press is in Process and I'worry about this refurbishing parts
Many thanks
Laurent
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bertsaunders



Joined: 20 May 2001
Posts: 577
Location: Bakersfield California

PostPosted: Sun Mar 23, 2008 6:10 pm    Post subject: press roll removal photos Reply with quote

Laurent,
My computer crashed last month, please drop me a note so I will have your email address in my book again!
Bert
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semihemi



Joined: 25 Oct 2003
Posts: 85
Location: Boston, MA

PostPosted: Sun Mar 30, 2008 9:57 pm    Post subject: Reply with quote

Hi Bert - I grabbed some time this weekend and cut out the shutter blank. In my Press the shutter had two tapes of shutter material running right along the entire length. There is still some trace of adhesive at the edges of the tapes. The work looks factory to me. Two quick questions:

Do your presses have the tapes?

If the tapes belong there, do you think contact cement is the way to put them on? Or would some high-powered permanent stuff be better?

Thanks, Semi
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bertsaunders



Joined: 20 May 2001
Posts: 577
Location: Bakersfield California

PostPosted: Mon Mar 31, 2008 1:57 am    Post subject: 5x7 Press curtain Reply with quote

Semi,
The original curtains had no reinforcing along the edges! Never use contact cement on the curtains! (It is not flexable and it can crack when bent)! If you do need to re-inforce the edges, I suggest that you use rubber cement....apply a light coat on both surfaces.....let it dry until it takes on a dull glossy look....then carefully lay the pieces together.....carefully....because you now have a flexable contact cement, just like the original contact cement.....it is very tenacious......
It will come apart, but you must do it slowly.....Suggest a tite weeve cotton or bellows material!
Have a nice day.........Bert


Last edited by bertsaunders on Tue Apr 08, 2008 1:04 am; edited 1 time in total
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semihemi



Joined: 25 Oct 2003
Posts: 85
Location: Boston, MA

PostPosted: Tue Apr 01, 2008 2:07 am    Post subject: Reply with quote

Hi Bert - what did you think of the photo I sent with the edge tapes? Do you think they might be replacements or original? Does anyone else have a Press that they can look at for comparison?

Here (hopefully) is a photo of the original shutter (on the right) from my Press.

http://web.mac.com/johncoz/GraflexSnaps/shutter.html
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camz



Joined: 15 Apr 2004
Posts: 123
Location: Southern CA

PostPosted: Tue Apr 01, 2008 2:29 am    Post subject: Press Curtain Reply with quote

I just checked on my Press, and it didn't have any reinforcement tapes.

What year is your Press? Does it have the drop-down rear door, or the
flip-up style?
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semihemi



Joined: 25 Oct 2003
Posts: 85
Location: Boston, MA

PostPosted: Tue Apr 01, 2008 2:36 am    Post subject: Reply with quote

Hi - It hinges at the bottom, so I guess it would be drop-down. And yours?

PS: Are you able to view the photo?

Thanks!
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camz



Joined: 15 Apr 2004
Posts: 123
Location: Southern CA

PostPosted: Tue Apr 01, 2008 2:58 am    Post subject: Press Curtain Reply with quote

I have the flip-up door, just like an Anniversary Speed. My Press
dates to 1921.

Yes, I can see your curtain photo just fine.
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camz



Joined: 15 Apr 2004
Posts: 123
Location: Southern CA

PostPosted: Tue Apr 01, 2008 2:59 am    Post subject: Press Curtain Reply with quote

Maybe another member can comment on the significance of the rear door style.
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