In terms of practice, maintenance is carried out to ensure the desired reliability of production systems so that the total cost of the operation of such systems are the lowest. Article describes the benefits and advantages of the integration of complex system maintenance and example of its application. The main objective is familiar with the problems of maintenance and failure of machinery and equipment, as well as a generalization of the integration system maintenance. The article describes the different steps and examples of integration solutions. It addresses the complex maintenance of CNC machines and robotic systems.