The paper deals with the questions related to the improving of operating reliability of combine harvesters by means of synthesis of formerly used methods with the range of modern structural transformations in technical service, namely the three-level system of repair parts supply, the module principle of technical service and repair, the АВС (or XYZ) classification.
The research objective is to investigate the key reliability man-agement techniques for the agricultural machinery. A servicea-bility strategic management technique is used to study this issue. The analysis allows assessing strengths and weaknesses of the methods used to improve the reliability of products. The reliability management techniques during the current and scheduled repairs, maintenance work, as well as methods based on the queueing theory, are described. The application of each of the techniques at different operational stages contributes to the reliability engineering. Thus, the need for the problem solution to specify a number of theoretical distribution laws is ascertained. It is shown that the routine maintenance and repair timing shall comply with the deadlines to meet the requirements of the technical specifications for the reliability of the equipment in operation.
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