STM-Service LLC is the second largest traction rolling stock servicing company in Russia. The company offers a complete range of services for the maintenance of the Russian Railways’ fleet of locomotives: mainline freight electric locomotives, shunting and mainline diesel locomotives, passenger electric and diesel locomotives - 2ES10, 2ES6, VL10, VL11, TEM7, TEM14, TGM23, TEM2, TEM3, TEM18, ChS7, EP2K and others. The company operates more than 8 000 locomotive units.
STM-Service carries out repairs of locomotives of various degrees of complexity as well as modernization of railway machinery, supplying of spare parts, provides training and engineering consulting. The complete range of services for locomotive maintenance includes the performance of routine maintenance corresponding to TO-2, TO-3, TO-4, TO-5a-g, TR-1, TP-2, TP-3 and SR maintenance categories; repairs and refurbishing of components and assemblies; replacement of motors and modernization to extend the service life; arrangement of deliveries of materials and spare parts.
The company is actively introducing the predictive diagnostics technologies. A unified information system, which accumulates information on operating parameters and modes of all locomotives, makes it possible to predict service events and implement preventive measures.
The company has 5 service directorates (Moscow, Kuibyshev, Sverdlovsk, South Ural and West Siberian), which include two service centers and 27 locomotive service depots located on the territory of facilities of 7 branches of Russian Railways JSC in 28 subjects of the Russian Federation.