Central lubrication system. The central lubrication system supplies oil to the articulated joints, m. in. front suspension and steering racks. The system consists of a pump with an oil reservoir, main wire, dosing devices and oil lines. After pressing the central lubrication pedal, the pump presses the oil through the main conduit to the dosing devices. When the pressure on the pedal ceases, the pressure in the main line drops, and the pressure of the compressed air in the dosing chamber forces the oil therefrom to the lubricated joint. Press the central oiling pedal 2-3 times, making clear pauses between the presses. This operation can also be performed while driving. The oil supply pipes at the bends are flexibly connected with rubber pipes. With excessive wear of the lubricated connections, the play is so great, that the lubrication efficiency is low. For this reason, some companies choose not to introduce central undercarriage lubrication. The steering system is lubricated in accordance with the operating manual of the given vehicle.