ENGINEERING MANAGEMENT OF MAINTENANCE DURING STORAGE OF COMBINE HARVESTERS

Abstract

When designing combine harvesters primary mind always diverted performance issue and technical and economic
indicators (maintainability, life cycle costs, etc.). However, the desire to achieve higher characteristics of samples of
combine harvesters has led to the necessity of equipping them with sophisticated avionics system. As a result, the
design of combine harvester is much more complicated, and the process of maintenance and repair necessitated
additional work and increased cost of maintenance and repair. This was particularly noticeable for combine
harvesters of new generation. Analysing the fleet of combine harvesters in Ukraine and the procedure for its
exploitation we can state the fact that it is less reliable, and increasing labor costs for maintenance, increased
downtime combines harvesters without their functional use, which reduced the indicators of their readiness to
perform the assigned tasks. Was recognized the fact that the reliability and maintainability of combine harvesters
should be attributed to the main characteristics, which depends on their readiness for safe use. A successful solution
to the problem of maximizing the efficient use of all technical and running features of combine harvesters with their
high willingness to use depends on how the organizational structure of services of technical inspection and forms of
operation correspond to the level of its performance properties and degree of perfection of the means of its operation,
that is, from the accepted system of maintenance and repair. All other factors are of subordinate importance, and also
depend on the condition and quality operating equipment maintenance and repair. It is known that in the structure of
expenses, which reduce profitability and increase the operating costs of combine harvesters, costs related to
maintenance and repair 20-30%, ranking second only to fuel costs. And the critical funding situation, an invalid low
condition of combine harvesters put forward a number of priority issues of development and improvement of the
system of technical maintenance and repair. Efficiency of functioning of system of technical maintenance and repair
significantly depends on the effectiveness of the subsystem of the combine harvesters. This puts a number of actual
research tasks the task of assessing the impact of subsystem-recovery of complex technical systems on the
effectiveness of the process of technical operation.