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Dave35630
Tinkerer
Username: Dave35630
Post Number: 3
Registered: 07-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 14, 2009 - 06:47 pm: | 
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I have an Exacta with a rewind knob that doesn't seem to do much. The spring will move it to the most rear position but feels like there should be a ratchet that will make it move the film and cock the shutter. You can wind with the shutter speed dial and get the mirror in viewing position but the shutter just barely doesn't get all the way cocked. Any ideas on how to repair this one and how to get it apart to work on it? Thanks! |
Dave35630
Tinkerer
Username: Dave35630
Post Number: 4
Registered: 07-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 14, 2009 - 06:52 pm: |
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I forgot to add that this is a VXIIa. Thanks, |
Steve_s
Tinkerer
Username: Steve_s
Post Number: 162
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 15, 2009 - 01:58 am: |
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They are relatively easy to get apart, but to remove the screws retaining the wind-lever and the speed control, ideally you need to grind a couple of screwdrivers to accurately fit the concave bottomed slots, or you will mess up the screws. If yours are already wrecked you might not bother, but the speed control-knob screw is often VERY tight. Below the wind-lever screw there is a nut with 2 holes to turn it. In Exaktas there is a ratchet which should prevent the lever returning until it has completed its wind stroke. Is this functioning on yours? If so, before removing the wind lever turn it until this ratchet catches so that the return spring (like a narrow clock spring) does not unwind.
Once you have the controls off, 2 tiny screws are all that's holding the top-plate. Take it off and if the return spring is still wound, replace the wind lever to keep it that way. The parts which engage the wind/cocking mechanisms are well down the spindle, above the gear wheel you should be able to see at the bottom. Unless there is a simple obvious fault you will need to take off the return spring and the other parts to get at it. Be very careful with the little leaf spring which acts as a ratchet pawl for the frame-counter wheel which is fragile and easy to damage. |
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