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Robert Feldman (Rafeldman)
Tinkerer
Username: Rafeldman
Post Number: 4
Registered: 11-2021
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 12, 2022 - 05:38 pm: | 
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Hello,
I recently got a late-model Robot II (ca. 1950) in good outward condition. When I got it, the shutter speed dial moved stiffly and the shutter fired at the same fairly fast speed for all settings.
Using the instructions at https://www.micklem.com/photo/robot.html, I disassembled it down to the clockwork (illustrations 15-19 in the link), soaked it for about half an hour in denatured alcohol, worked the linkages, dried it, and lubed it with Moebius #8000. It was clean looking before the soak, but a number of linkages were not moving smoothly. After lubing, all of the linkages I could see and move looked OK. However, after reassembly, the only improvement is that Bulb works -- all of the other speeds are the same. Any suggestions as to what I should do now? Are there any particular points in the clockwork that I should look at again? I do not have an ultrasonic cleaner, so I must depend on soaking to clean the movement.
Pre-2013 Username: r_a_feldman
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Paul Ron (Paul_ron)
VIP
Username: Paul_ron
Post Number: 310
Registered: 12-1997
Rating: 
Votes: 1 (Vote!) | | Posted on Saturday, October 01, 2022 - 09:42 pm: |
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wow nice camera. Ive never seen one. thanks for the link.
insterad of using alcohol try using white gas? the coleman camping fuel. Some peopole us lighter fluid, aka naptha. THese fluids dry clean n do a good job of disolving oil n grease. BUT you have to do a few good washes to be sure you got it all out... but be careful with shutter baldes n aperture blades, on some cameras they are made of paper or may be effected by the cleaners.
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