From a fundamental perspective, DC water pump manufacturers pursue input-output, which is to pursue the adoption and operational efficiency of DC water pumps. From this perspective, it is not difficult to understand the driving force behind the development of DC water pump management from "post maintenance" to "preventive maintenance". It is possible to discuss efficiency issues only when dealing with the interference of sudden faults in the DC water pump on production plans and the negative impact on product quality. So, how to effectively "prevent" the occurrence of prominent problems has become the primary issue for all DC water pump operators to consider and handle.

The implementation mechanism of the preventive maintenance mode includes the implementation of strong preventive maintenance plans and the preventive maintenance system based on spot checks. The combination of the two is now known as the "point inspection and repair system" by many DC water pump manufacturers. Although the "point inspection and repair system" is well known by many DC water pump manufacturers, there are still many problems in the actual implementation process. Including issues where preventive maintenance plans are affected by production organizations and cannot be effectively fulfilled; How can the timing and maintenance content of the preventive maintenance plan be more reasonable; The usefulness of the sense of responsibility, concept, and ability of inspection personnel in grasping the deterioration of DC water pumps; The key completeness of inspection standards and the distinction and measurement of inspection item objectives; Universal scheduled maintenance is ineffective in preventing problems such as chaotic DC water pump problems.