Differentiation of the Seasonal Loading of Combine Harvester Depending on its Technical Readiness

Development of the worn machinery market on the former USSR and availability of the commercial farm units with varying areas of cereal cropping causes the necessity in grounding the economically viable correlation between the combine harvester season load and its technical readiness. It is determined that on the increasing the combine harvester season load from 150 to 350 hectares the rational operational readiness must be raised from 0,4 to 0.85, the repair time must be decreased from six hours to half an hour and the mean time between failures must be raised from six hours to twenty hours. It is possible to ensure these activities by means of repair-servicing correlations, increasing the number of participants in eliminating the consequences of failure and forming the fund of the changeable spare parts, their timely delivery to the mobile units, using the aggregate repair method.