KAMAZ PERFORMANCE IN CONDITIONS OF PERMAFROST REGION
The PURPOSE of this article is to study the operability of KAMAZ truck systems in severe natural and climatic conditions of the permafrost region. The METHODS of mathematical statistics are used to process database information on KAMAZ operability in the temperature-load conditions of the North. RESULTS. The conducted study of failures of the main groups of assembly components and parts of KAMAZ trucks operated in the North allowed to classify these systems into the types by sensitivity to low climatic temperatures. We have distinguished the groups of parts and assembly components of KAMAZ truck for which low ambient temperature is the dominant factor influencing their operability; the groups whose operability is affected by low temperatures along with other operational factors; and the groups whose operability is slightly affected by low ambient temperatures. CONCLUSION. The systems and parts limiting the performance of KAMAZ trucks in permafrost region have been identified. The study is given to the monthly distributions of failures of KAMAZ part groups and assembly units by months. These groups are classified according to the degree of sensitivity to low climatic temperatures.