Pales27

Thank you very much! This is my favorite childhood set, I spent a lot of time to disegn it. Yes the L motor has enough power for 1:1 gear ratio for the pumps. It is up to you which gear ratio do you prefer if you build it :D For me easier to handle the backhoe cylinders with this ratio (less air) and the L motor has an easy job too :D I hope one day lego will introduce RC pneumatic valves and I will be able to build it into my model.

My dream is that one day I will be able to create the complete RC version as well :)

Hello everyone! This is my pneumatic backhoe, redesign of the classic 8455 set. Main features: motorized wheel drives and steering (power funtions) motorized air pumps 7 pneumatic functions 2 speed gearbox lights (power funtions) Building Instructions available on Rebrickable: https://reb.li/m/228753