The specifics of reclamation works are associated with difficult conditions for their mechanization. Seasonality of the work requires an increase in the efficiency of using machines, preferably with the absence of their failures. Usually, equipment failures in melioration organizations are eliminated at the place of machine’s work (units) by the on-site repair teams equipped with mobile repair workrooms (MRWs). Cost analysis of the units operation in the technological complex shows that there is an optimal amount of MRWs for performing repair and technical impacts. The authors develop a technique for selecting mobile repair workrooms and their completeness with repair equipment. It justifies the effectiveness of the inclusion of the service department to eliminate machine failures when performing technical works of mobile repair and maintenance services, basing on a car chassis, with special equipment and accessories infrastructure.