Fun removing a stuck Salyut-P6 adapter.

an adapter ring taking Salyut lenses, mounted on the P6 bayonet of a P6-M42 adapter.
I tried all king of wrenches, for non destructive removal but it's stuck.
So, two diametrically opposite cuts with a mini file and a caliper piston tool to crush, and finish with smaller tools.
Spend more time cleaning off aluminium dust (partial disassembly of the P6-M42):



aluminium against aluminium tightly stuck:



the advantage of this ring, relatively to the default Arsenal/Arax ones is the small screw with Allen key to secure it:





Anyway the stacked adapters Salyut-P6 + P6-M42 was to thick for infinity focus, I am going to do my own Salyut-M42 adapter,
with the lens mount of a broken Salyut body, the M42 mount and body tube of an old Vivitar zoom.
More "fine mechanics" this sunday ....

Have you applied heat/cold and grease?

Sammydesinas said:

Have you applied heat/cold and grease?

Click to expand...

I tried heat/cold. Sometime let it in the freezer (-30) a day, took it, tightened as strong as possible with a metalic ribbon tool (oil filter tool...) around the thin collar of the P6-Salyut ring, and warmed up the body of the M42-P6. But nothing. Grease I didn't try. it was so tight that even weapons oil may not have find it's way through.