The underground installation of the installation core of a lubrication system is beautiful and convenient but uncomfortable in maintenance. We have now developed the new model with underground lift for more convenience during maintenance and servicing: The installation core is placed in an underground steel box. The installation core is electro-hydraulically lifted to approximately 1 meter above ground level for maintenance works. The steel box is locked with a watertight cover which can be covered e.g. with cobblestone pavement. The installation of a rail lubrication system also in historical centers and under strict urban development standards no longer poses any real problem.