How to remove film advance on Leica III?

[RFH]

I'm overhauling my Leica III (the one also called model F), the pre-war type. I can't get the film advance knob off. I have looked under the set screw, but I haven't found anything there to solve the issue. I don't want to apply excessive or unnecessary torque to the knob, as it still engages at least one cog in the mechanism.

None of the instructions I have seen on the web deal with this particular part.

Does it screw or lift off? Do I need to do anything else than remove the set screw?

 

[nhchen]

While I havn't disassembled that particular model, in all of the russian/japanese leica copies I have, the advance knob just screws off counterclockwise after the set screw is removed. If I'm worried about stripping any of the other gears its connected to I try to unscrew it while holding takeup spool spindle from the bottom (may be easier to hold if the body shell is removed).

Here's a link I found of someone fixing the same part on a nicca/tower iiis.
https://www.flickr.com/photos/rwrede/sets/72157632429003282/

I'm sure other members here will have a better description to how to do it than me..

nathan

 

[RFH]

Thanks,

I have removed the inner body from the shell for easy access to the advance spool.

I tried what you said, but this only unscrewed the spool stem from the large cog inside the mechanism. The advance knob above didn't move.

Any other suggestions?

 

[Baybers]

Thomas Tomosy Leica Camera Repair Handbook

Thomas Tomosy Leica Camera Repair Handbook

According to the above book the advance knob is screwed counter-clockwise after either backing out or removing the setscrew.
Good luck.

 

[RFH]

Thanks, guys. I put a drop of oil into the set screw hole and let it sit for a while. After grabbing the take-up gear with a piece of rubber, I was able to unscrew the knob.