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I need a shutter repair

 
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Sirius Glass



Joined: 06 Jun 2010
Posts: 123
Location: Southern California & Virginia

PostPosted: Fri Jun 11, 2010 1:52 am    Post subject: I need a shutter repair Reply with quote

Who can repair the shutter of my RB Auto Graflex? Anyone in the Washington DC, Virginia or Maryland area so that I do not have to risk shipping the camera.

Steve
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45PSS



Joined: 28 Sep 2001
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Location: Mid Peninsula, Ca.

PostPosted: Fri Jun 11, 2010 4:57 am    Post subject: Reply with quote

Does the curtain have any noticeable holes or tears?
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Sirius Glass



Joined: 06 Jun 2010
Posts: 123
Location: Southern California & Virginia

PostPosted: Fri Jun 11, 2010 6:05 pm    Post subject: Reply with quote

45PSS wrote:
Does the curtain have any noticeable holes or tears?



No. There are two problems:
1) The shutter cloth was moving and now it is stuck.
2) Even when I could change the slit size, when I tripped the shutter the mirror moved up but the shutter did not fire. I has another RB Auto user look at it last night and he said that something in the linkage [mechanics] is not properly adjusted or a part in not in the right place.

Steve
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45PSS



Joined: 28 Sep 2001
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PostPosted: Sat Jun 12, 2010 12:16 am    Post subject: Reply with quote



Will the shutter cloth move when lever M is pulled backward?
Is slide D (wheel on older Graflexes) in the I (instanteous) position?
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Sirius Glass



Joined: 06 Jun 2010
Posts: 123
Location: Southern California & Virginia

PostPosted: Sat Jun 12, 2010 12:19 am    Post subject: Reply with quote

45PSS wrote:


Will the shutter cloth move when lever M is pulled backward?
Is slide D (wheel on older Graflexes) in the I (instanteous) position?


Will the shutter cloth move when lever M is pulled backward?
It did for a while
Is slide D (wheel on older Graflexes) in the I (instanteous) position?
I

Steve
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45PSS



Joined: 28 Sep 2001
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Location: Mid Peninsula, Ca.

PostPosted: Sat Jun 12, 2010 8:18 pm    Post subject: Reply with quote

Will the tension increase/decrease with Knob B/slide P?
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Sirius Glass



Joined: 06 Jun 2010
Posts: 123
Location: Southern California & Virginia

PostPosted: Sat Jun 12, 2010 8:24 pm    Post subject: Reply with quote

45PSS wrote:
Will the tension increase/decrease with Knob B/slide P?



Yes, both increases & decreases, That works well.

The A key is temperamental.

When the camera is triggered the mirror goes up but the shutter does not move.
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45PSS



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PostPosted: Sat Jun 12, 2010 8:43 pm    Post subject: Reply with quote

The next step would be remove the back and see if the curtain is hanging up on something. Then would be removing the wind plate and fixing whatever is wrong.
Did you see my PM about a CLA?
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Sirius Glass



Joined: 06 Jun 2010
Posts: 123
Location: Southern California & Virginia

PostPosted: Sat Jun 12, 2010 9:15 pm    Post subject: Reply with quote

45PSS wrote:
The next step would be remove the back and see if the curtain is hanging up on something. Then would be removing the wind plate and fixing whatever is wrong.
Did you see my PM about a CLA?



No, please send it again.

Steve
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45PSS



Joined: 28 Sep 2001
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PostPosted: Sat Jun 12, 2010 9:55 pm    Post subject: Reply with quote

The Private Message (PM) function header says "log in to see your messages" just left of the log in link, once loged in it will say how many messages you have. Click on the "you have X new message(s) " or click on the log in to see your messages which takes you to the log in form then upon loging in you are taken to your PM inbox.
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Sirius Glass



Joined: 06 Jun 2010
Posts: 123
Location: Southern California & Virginia

PostPosted: Sat Jun 12, 2010 10:11 pm    Post subject: Reply with quote

45PSS wrote:
The Private Message (PM) function header says "log in to see your messages" just left of the log in link, once loged in it will say how many messages you have. Click on the "you have X new message(s) " or click on the log in to see your messages which takes you to the log in form then upon loging in you are taken to your PM inbox.


Got it. One last effort before I ship it out.

Steve
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45PSS



Joined: 28 Sep 2001
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Location: Mid Peninsula, Ca.

PostPosted: Fri Jun 18, 2010 2:12 am    Post subject: Reply with quote

I have researched this section for "stuck shutter" and found the following causes:
1. Lever D not fully at the I position, 98%-99%. This also locks lever L. From memory it does not have to be off the end of travel more than 1mm to 2 mm, 3/32 inch or less.
2. The curtain is hung on the top of the case, usually at the top roller, about 1%. To remove the back remove the 4 flat head screws across the top and 4 across the bottom, rotating the back is necessary to get access to all 8, remove the 2 each side oval head screws on the sides of the back, then loosen the rear 2 screws of the wind plate 1 turn and lift the back off the camera.
3. Roller gear worn down due to very heavy use, less than 1% .
4. Wind gear bent due to someone forcing the wind key while the shutter was locked, less than 1%.
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