Technical and economic assessment of maintenance and repair systems of agricultural machinery

Relevance. The efficiency of agricultural production largely depends on the technical condition of the agricultural machinery fleet. The technical condition, in turn, depends on many factors that determine the level of operation of the equipment. One of the most important factors determining the reliability of agricultural machinery, the cost of restoring and maintaining the working condition of agricultural machinery is the frequency of maintenance. As a result of studies conducted in the agricultural organizations of the region, it was revealed that engineering and technical services, when organizing maintenance and repair (TO and R), use canceled GOST, referring to the fact that domestic equipment, its reliability and performance are not able to recover when frequency of 125 hours. Therefore, the purpose of this study is to determine the effect of the frequency of maintenance and repair on the preservation of the resource and the indicator of the rate of change of the resource, on the performance of the machine-tractor unit (MTA), on fuel consumption, on the costs of restoring and maintaining the working condition of agricultural tractors.
Methods. The following methods were used in the study: normative, statistical, expert assessments, experimental, calculation-constructive, economic-mathematical methods. For the economic justification of the periodicity of technical impacts of agricultural machinery, statistical data from agricultural organizations were used, GOST regulating the maintenance and repair of agricultural machinery were used.
Results. The maintenance and repair system, regulated by GOST 20793-2009, meets the requirements of technical and production operation of tractors. Traction properties of tractors are higher by 0.7%, specific fuel consumption during agricultural technological operations is lower by 0.5%, labor costs for maintaining and restoring technical readiness are lower by 13.8%.

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