How work Gearbox?

Hi guy, i don’t understand how work and how to do the gearbox and water pump X_X on internet didn’t found any tutorial… some one can explain me pls?

to be honest i have no idea how they work. I managed to make a pipe line that transports water from a lower level, but it took me some time to figure it out. About the gear box, it might not have a use yet. If i find anything I will let you know :smiley: