In 80s, with the gradual enrichment of market products, construction machinery maintenance situation has changed, the construction enterprises began to organize their own maintenance, to ensure the normal operation of construction machinery.

In 90s, the national key projects and the rapid development of high-grade highway construction, a number of international advanced level of construction machinery products, such as port cranes, dock cranes and other equipment to start construction enterprises. This kind of mechanical maintenance experience alone is difficult to work. Therefore, the way to adapt to market changes, become a difficult problem.

Development so far, people on the construction machinery repair industry is not a good impression, such as port cranes, quay cranes such products, some customers reflect: repair a bad. Maintenance industry situation so embarrassing, industry analysis is mainly caused by two reasons:

One is the lack of macro management of construction machinery maintenance industry, it is the national ministries and administrative departments of supervision, decentralization, responsibility is not clear, difficult to coordinate in the policy, in a vacuum. :

On the other hand, engineering machinery repair company properties relative to a single, small maintenance enterprises are basically confined to the collective, private property, financing consciousness of these enterprises on thin, satisfy the current situation, it is difficult to adapt to the changes in the market. Because the competition, evaluation, supervision and incentive mechanism of the maintenance industry are not established, the standard and the system are not perfect, and the maintenance quality evaluation has no basis.

For a long time leading engineering machinery maintenance or preventive maintenance while playing a certain effect, but provides a mechanical maintenance unit or some models can only adopt a maintenance mode, which is not consistent with the actual, and difficult to work. Therefore, the future of this stereotype maintenance thought will be broken, developed into the basis of condition monitoring, reliability centered maintenance, combining various maintenance methods, maintenance of thought in different ways according to different situations.

In addition, with the wide application of state monitoring and fault diagnosis technology, port crane, crane and other advanced engineering machinery products will be equipped with mechanical and electrical integration of online automatic monitoring and fault diagnosis of equipment, therefore, reliability centered maintenance theory will become the dominant ideology and development direction of maintenance management of construction machinery.