This patent picture is not too far away from CH. There is no plunger, in its place, it's a spring plug. It's extremely hard to disassemble the coupling out even when the lock work is taken out of the frame. My way was pushing the hammer pivot out to release the hammer and main spring, then it's easy to take the coupling out. But obviously that does not work when the lock work is in the frame.
Is it still in the frame?
|