@kbalage
Thanks for a fast reply. If I got it right (at least from the top view in your video) the same cogs and axles rotate in 1st, 2nd and 3rd gear? Attached is a screenshot from your video on which I marked all the cogs that are rotating (in all gears) . Is there anything special that should happend in 1st gear, some cog that should be rotating only in 1st gear?
Due to the 0,1MB atachment size restriction here is a google dribe link to the full size file:
https://drive.google.com/file/d/14dJNb1SOXv35oLf2D_BNu-imT-4WVitd/view?usp=sharing
@allanp
Everything else works fine: iIt drives in 2nd and 3rd gear, and it lifts the bucket.
Orange part (gear selector) is in line with the pink limiter (it is in horizontal position when in 1st gear, and it moves up when shifted to 2nd...). Only a few small pieces left. No gears or something like that.