The Ruthmann Cargo Loader is a modular system used for easyly loading/changing
container in urban environment.
You can find on Youtube a presentation of this vehicle:
https://www.youtube.com/watch?v=qUeZFyRZ1dw

The MOC is a midi-scale without Power Functions.
Steering is by HOG (Hand of God)
The up/down movement of the truck are managed by two mini pneumatic jack.
Pump and selector are in dedicated compartment with door behind the cabin.