VALOO aperture ring hard to turn
Old 04-02-2015   #1
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VALOO aperture ring hard to turn

I've used a VALOO enlarger accessory as a hood on an Elmar 50/3.5 for a long time. Over the decades the aperture adjustment ring has become more and more difficult to turn (no surprise). Is there is a way to free up the ring just a wee bit or should I leave well alone?
Any suggestions much appreciated.
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Old 04-02-2015   #2
Ronald M
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DAG or Sherry
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Old 04-03-2015   #3
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Small drop of zippo fuel
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Old 04-03-2015   #4
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This may sound like heresy but I think a small squirt with WD40 may help. Despite arguments to the contrary it often works.
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Old 04-03-2015   #5
Luddite Frank
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A second vote for lighter fluid. WD-40 would probably be okay too, although I wouldn't use it on a focusing mount or inside a shutter assembly.
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Old 04-05-2015   #6
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I used lighter fuel in a hypodermic syringe -- worked well. Thank you everyone.
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