The quality of machines technical service in field conditions

The main volume of mechanized work in agricul-ture falls on spring and summer period and is car-ried out in field conditions, and in the squeezed agrotechnical terms. Therefore according to State Standard 20793-2009 periodic service of TS-1 and TS -2 of tractors is allowed to be carried out on the place of their work with use of mobile units of tech-nical service. However, working conditions of the operator on technical service cars in the field con-siderably differ for the worse from the conditions of his work in repair shop. It leads to the deterioration of the work on technical service cars in field and, therefore, to decrease in the level of reliability and efficiency of cars service. Therefore the studying of quality technical service of cars in field conditions is actual. In this regard the task was set: to reveal the factors influencing the quality of technical service of tractors in field conditions and also to give a quanti-tative assessment of quality technical service of cars in the field. The researches were conducted on the basis of method of expert evaluations of Delphi. It was revealed that according to the re-ceived coefficients of ponderability of factors the greatest influence on the quality of technical service was rendered by the following factors: climatic condi-tions (41.2 %), the availability of qualified personnel (18.1 %) and also biological conditions (12.0 %). In the sum they make more than 70 % (71.3 %) and for further research can be accepted as significant. The quantitative assessment of quality technical service of tractors in field conditions was made. It was established that in agricultural enterprises of Irkutsk Region the average assessment of the qual-ity of cars in field conditions made technical service 0.36 (36 %) corresponding to service of tractors in field conditions with the level of quality "low". The received results can be used further at decision-making on the improvement of technical service of cars in field conditions and also at statement of re-search problems of process of service of cars in the direction of resource-saving.