Unification of Terms of Maintenance and Repair of Passenger Railway Cars and Their Elements as the Main Part of Implementation of the Operational Stage of the Life Cycle Contract

The article is devoted to consideration of issues of analysis of units and parts used in newly built rolling stock, their systematisation and formation of an accounting algorithm, as well as to the issues of their replacement with determination of problematic aspects and ways to level them. The service life of main elements and units used in passenger rolling stock has been studied, allowing to determine the terms of their periodic replacement, maintenance and repair, and to propose an algorithm for their control. The study refers to the issues of replacement or maintenance of individual units, parts and elements of passenger cars with reference to the period of scheduled preventive maintenance, as well as to the need to consolidate individual requirements at the stage of designing the rolling stock and its elements in the regulatory and legal field to improve the efficiency of using rolling stock at the operational stage of its life cycle and minimise the transfer of rolling stock to the non-working fleet withdrawing it from transportation activity. The studies of the regulatory documentation supplied during manufacture of a car are followed by the analysis and systematisation of the service life of the car itself, as well as of its main units and assemblies. This study is intended to improve the efficiency of rolling stock operation, systematise and, in some cases, establish requirements for the service life of individual units, mechanisms and elements in manufacture and design of passenger cars, simplify and optimise assessment of the life cycle cost of a car, synchronise the stages of the life cycle of individual elements of the rolling stock with the life cycle (cyclic replacement) of units and parts used in the rolling stock.