Hi Massimiliano,
Congratulations on getting your electromechanical clock running. It was a lot of effort and I realize that there is a language difference. Google translate does not always work very well on PDF files. I just noticed a translate feature in Microsoft Word that does a much better job. Some page layouts needed to be manually shifted to get images to fit on the same page as the associated text. Screen captured images are obviously not going to be get translated. Overall, I think it may be helpful.
Do you mind checking out the translated assembly notes to see if it is readable? I only recognize a few words and mostly just lined up the pictures to match the original source.
Steve