On what basis is the regular maintenance of equipment carried out?

From BM (broken maintenance) in the first industrial revolution to PM (preventive maintenance) in the second industrial revolution in the 9th century. After years of development, preventive maintenance has different maintenance methods according to the technical conditions and objectives of maintenance. There are mainly planned maintenance (TBM) or scheduled maintenance (SM), and the content and period of maintenance work are set in advance based on time. China's planned maintenance management originated from the former Soviet Union, and its idea is: under the conditions of strict equipment design and manufacturing norms and fully planned production system, in order to prevent equipment failures and accident losses, mandatory planned maintenance is adopted for equipment. In the era of planned economy in China, a set of perfect equipment management system of "two guarantees and one overhaul" was summarized on this basis. In modern times, planned maintenance has gradually developed into predictive analysis and early prevention, which has surpassed the traditional preventive maintenance system of equipment management. Reliability-centered maintenance. Originated from American Airlines. This method is based on various fault models, and improves the reliability of equipment by means of fault analysis and condition monitoring. It is a maintenance strategy to decide the maintenance scheme on the basis of evaluating the influence of possible faults of components on the reliability of the whole system. It needs to establish an equipment failure model first, and then control the maintenance process and activities according to the predicted or observed performance of the outfield system. For example, by analyzing the expected or actual system or component failures and tracking the development trend of system failures, the performance of the system can be described, so as to determine the effectiveness of planned maintenance. The following is my experience of planned maintenance: it is more targeted to make equipment maintenance and repair plans. In order to prevent blind maintenance, the replacement has not been changed, and the working one has been changed. Effectively highlight key equipment, equipment that is often prone to failure, maintain complex equipment, and strengthen the skills of maintenance personnel. Focus on analyzing and solving the reasons for the reduction of production efficiency, so as to maintain the production efficiency of equipment and prevent the equipment from completing fewer and fewer production tasks per unit time within the effective life cycle. Better evaluate the reliability of equipment, provide better information for purchasing new equipment, and rationally allocate the number and level of maintenance personnel. Finally, according to the results of statistical analysis, a document is formed, and then according to the effect, the unreasonable part of the first analysis is corrected and adhered to. Should be able to receive good results. The above is my opinion, which may be useful to you.