Abstract

The degree of extending the service life of the machines is crucial in planning the amount of inventory of spare components to maintain their employability. The paper is displays the analytical dependence for taking into account the impact of extending the service life of the machines over the cost of spare components needed to maintain their employability.

This paper examines the influence of pre-repair resource, between- the -repair resource and coefficient of variation of the resource of spare elements over their quantity that is necessary to maintain the efficiency of the machines when increasing their service life.