March 2010: Pentax KM

I succeeded in removing the lens (a drop of penetrating oil introduced with a syringe, pin pushed with a small screwdriver.
"Stripping" of the camera body: after removing the knobs and cocking lever, the top and bottom covers are removed as well as the lens mount and the front cover, no need to go further in disassembling the camera works perfectly. The mirror is removed to be washed.
Cleaning of the leatherette using a slightly damp toothbrush.

Replacing the mirror damping foam.

The parts of the lents mount are cleaned. The jammed release button was twisted, it is straightened and "worked" with the file so that it slides perfectly again.
The mirror is washed.

Replacement of the mirror,
Reassembly of the mount (and control)
Replacing the baseplate (and checking the meter, the battery can now be set in place.

Cleaning and reassembly of the remaining elements. The cocking lever returns well, there were only two loosened screws in the mechanism.

The original lens is in perfect condition and required only a minor operation: 3 screws to tighten.
I ordered for foam seals for the back from a new supplier, the replacement will be done later.