Abstract: A leveling and support system for recreational vehicles operates on a plurality of telescoping air cylinders. Leveling is accomplished through a separate valve in the line for each cylinder, each valve being mounted adjacent the others, and adjacent an electrical switch which operates a DC motor in either a forward or a reverse direction. The motor actuates a rotary air compressor in a forward or reverse direction for changing the air pressure from positive to negative while operating each of the valves to each cylinder line.

Abstract: A leveling and support system for recreational vehicle operates on water cylinders powered by a community water supply or a recreational vehicle water tank. A plurality of water cylinders are mounted to the recreational vehicle in pre-determined positions for leveling and supporting the vehicle. The cylinders are each connected through a branch valve to a main valve which in turn, is connected to a source of water under pressure. Each branch valve controls the operations of one water cylinder and the main valve supplied either water pressure or a suction through the branch valves to the water cylinders. The water cylinders have an operative position for supporting a vehicle and a stored position for travel with means for locking the cylinders in the stored position once the vehicle has been leveled.