Abstract
A methodology and algorithm for determining the optimal volume of repairs with known cyclicity of repair production and between-repair runs of mainline diesel locomotives of the TE10 series and the UzTE16M series in various sectional designs is presented. The basic component of this methodology is the dynamic programming method in combination with the reliability characteristics of diesel locomotive components and probabilistic and statistical methods for their calculation. Planning of optimal volumes of repairs is carried out on the basis of a minimax criterion based on the value of the total operating costs for the maintenance of each repair unit of a diesel locomotive. It is recommended to continue this research with the aim of drawing up block diagrams and developing working programs for computer hardware and software systems and computers with their subsequent implementation in the practice of working the locomotive complex of the Uzbek Railway.