When customers buy mechanical equipment, the least concern must be how to maintain it, so as to increase its service life and improve efficiency.

　　1. Due to the influence of production process and equipment operation law, sudden problems often occur and are difficult to control. Therefore, timely maintenance after the event will play a vital role in reducing losses. At the same time, due to the continuous upgrading of enterprises' investment in automation and high-speed equipment, the production cost per unit product is continuously reduced, but the cost of equipment maintenance is increasing. Many enterprises often pay attention to the reduction of manufacturing cost and ignore the maintenance cost, which usually accounts for 5% ~ 15% of production cost.

　　At the same time, when looking for ways to reduce maintenance costs, many enterprises only pay attention to unpredictable and uncontrollable sudden faults, while ignoring the conventional problems in the whole equipment operation system. The effective control of conventional consumables can not only reduce a lot of maintenance costs, but also greatly improve the efficiency of production equipment, Reduce the probability of major problems and minimize equipment efficiency and cost control.

　　2. The prevention of equipment management is the main. The paper industry is determined by its process. The equipment cluster and monomer are relatively large, and the degree of continuity and automation is high. Therefore, once damaged, the impact is often huge. In order to avoid the losses caused by major and uncontrollable problems as much as possible, many enterprises have constantly changed and improved the mechanism design, such as regular inspection and spot inspection, which have been controlled to a great extent.

　　On this basis, advanced equipment testing methods have played an important role. Successful fault diagnosis, especially the diagnosis that can report the fault moderately in advance, will produce obvious benefits. This benefit is extremely considerable under special circumstances. Secondly, fault diagnosis technology can play a great auxiliary role in equipment maintenance. It can not only greatly save human resources, but also change the maintenance mode, gradually replace the planned maintenance mode with advanced condition based maintenance mode, and even have a positive impact on the management mode of inventory spare parts.