Lubrication system is a key part of every vehicle in which the drive is realized by an internal combustion engine. In order to preserve the engine from internal damage it’s necessary to insure engine lubrication. In that way increased wearing of parts is prevented and engine interior is partially cooled and cleansed. The reason for picking this topic for my final paper is the importance of lubrication systems in vehicles. The paper is consisted of a detailed explanation of the purpose and principles of operation of individual elements of the system. In order to clarify the operation of the lubrication system of the M – 84 tank as precisely as possible, the computer program SolidWorks was used to create 3D models of individual elements. The models are made according to the available documentation. The model of the system, with all its elements is intended for training and education of students and cadets, as well as for the needs of system maintenance.