I inherited a cuckoo clock that hadn't worked for 15 years; by following your recommendations and thanks to them I put the cuckoo clock back in working order: my parents had bought it in the Black Forest in Germany
On the other hand, I had to ream the passage holes for the movement chains; they were not well drilled and the chain rubbed (loss of power) I also noticed that the weights should not be raised at the stop of the cuckoo clock because in my case the movement stopped.
Thank you again for your explanations, it's valuable for a newbie in watchmaking... Fold back