Technique and results of experimental studies of specific cost determination of tractors maintenance during implementation of different methods

Abstract

Abstract Maintenance of tractors in the agricultural enterprises and country farms of the Irkutsk region is carried out by three ways: centralized; decentralized; combined. Each object is expressed by the specific cost of technical tinning in which maintenance-1 and maintenance-2 are considered, and on the decentralized and combined objects in addition – specific costs of maintenance-1 and maintenance-2. The technique of determination of specific cost of maintenance tractors provides obtaining numerical values of an indicator assessment of the choice means maintenance tractors. Results of experimental studies show that the mathematical expectation of specific cost of maintenance tractors by the centralized method has the minimum value (133 rub/engine hour) that is 24.8% less than mathematical expectation by the decentralized method and on 21.1% – by the combined method. This results from the fact that at the decentralized and combined methods the agricultural enterprises in addition have costs of acquisition maintenance unit, its contents and intended usage. When accounting working conditions of the operator in the field – at the decentralized and combined methods of expense also increase at the expense of additional costs respectively of 11.3% and 2.2%. at the combined method additional expenses are 4.8 times less, than at decentralized due to carrying out in field conditions only of maintenance-1.