Frozen Rangefinder on Pax M3

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Author Message   Dmcrite33 Tinkerer Username: Dmcrite33 Post Number: 5 Registered: 03-2009 Rating: N/A Votes: 0 (Vote!) Posted on Tuesday, March 24, 2009 - 07:03 am:        The rangefinder on my Pax M3 is frozen. Can a lubricant be applied to the helicoid threads to free it up?   Rick_oleson Tinkerer Username: Rick_oleson Post Number: 847 Registered: 07-2006 Rating: N/A Votes: 0 (Vote!) Posted on Thursday, March 26, 2009 - 04:54 am:        There is a very long thread on the same problem (I assume you mean that the lens helical itself, and not just the rangefinder, is frozen) on a Pax M2: https://kyp.hauslendale.com/classics/forum/messages/2/14653.html?1236655189 The solvent that finally did the job in this case was Xylene. It required removing the shutter from the camera, removing the lens cells and immersing the helical in solvent for several days, periodically working the helical back and forth as the grease began to soften. Once the old grease is cleaned out, you can relubricate it.

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