Active Maintenance and Malfunction Remove of CNC Machine Tool;

Through an approach to the content and manner of active maintenance for the hydraulic system in port machinery, and by researching on its pollution controlling and the reasonable replaced period of the hydraulic oil, this paper puts forth a criteria and measure to the active maintenance of hydraulic system of port machinery.

This paper discusses the connotation of Proactive Maintenance Strategy and conceives a decision model on maintenan ce ways of Proactive Maintenance Strategy based on summarizing present development of equipment maintenance in cement industry.

The pivotal problems to put the proactive maintenance to machines in practice are listed.

As the development of maintenance, a new kind of maintenance method called proactive maintenance came out and became more and more effective during the equipment fault diagnosis.

The results indicated that Zhongwei goat wool, a special fiber with a greet heterogeneity , has dominant fibers but no main fibers, and that the ratio of wool number is not identical with that of weight.

Setting objective cleanliness is a principal problem in the proactive maintenance of hydraulics.

The concept of the proactive maintenance was discussed.

For the purpose of improving the maintenance management level in corporations in China and with reference to the total productive maintenance in Japan, this paper mainly discusses the contents, functions, and procedures of independence maintenance, employees training and the procedure of maintenance management.