Abstract: A container carrier truck adapted to load and unload a container thereon and to conventionally dump a load and characterized by hydraulic cylinders arranged relative one to the other and to a pivoted loading-unloading frame to each be positioned in its optimum action position when the demand thereon is optimum. This truck includes a guideway for longitudinal displacement of the pivoted frame, a carriage also longitudinally displaceable along the guideway, a pair of hydraulic cylinders on the effectively opposite sides respectively of the pivotal frame, an abutment, and a catch device to hold the pivotal frame and carriage in a predetermined loading-unloading position along the guideway, one hydraulic cylinder exclusively producing pivoting of the pivoted frame, and the other producing pivoting and longitudinal displacement of the frame.