Justification of the unit functionality maintenance machines

Abstact The classification and functional purpose of the existing serial maintenance units (ATO) of the machine and tractor fleet (MTP) is considered. The low equipment of agricultural enterprises with these technical facilities is shown, the reasons for which are the high cost and redundancy of equipment of serial ATO. Excessive functionality of serial units leads to an increase in their dimensions and weight. This makes it necessary to use a more lifting vehicle. Thus, the cost of serial ATO increases. Agricultural producers do not want to purchase expensive mobile service equipment, despite the fact that not all of their equipment can be used in the field. The presence of large water tanks and a washing pump, for example, in the designs of some ATO-P, manufacturers explain the possibility of using them in the field as fire extinguishing agents, which has nothing to do with the. In the presented research materials, the directions of the prospective functionality of the ATO in relation to the field conditions of agricultural enterprises are studied. The analysis of the production situation, the content of operations by types of maintenance machines and the method of expert assessments made it possible to determine the functional purpose and the list of service works performed for a promising mobile maintenance unit in the field of agricultural enterprises. The results of an expert assessment of the optimal set of functions of the mobile ATO are presented and a variant of its functionality and equipment is proposed.