Automatic tire changer for mobile truck service (intensive use). Suitable for tubeless wheels. Self-centering 4-arm hydraulic chuck. 1-speed engine. Clockwise and anticlockwise rotation of the spindle. Universal tool. Hydraulic movement of the spindle arm (right-left). Hydraulic lifting of the spindle arm (up and down). Manual movement of the tool arm (left - right). Tool changer with manual lifting and rotation.