The maintenance of the plastic case parts of the MCCB is the basic work of equipment maintenance, which must be institutionalized and standardized. Equipment can be regularly maintained should establish social work quotas and material consumption quotas, and performance assessment according to quota management, and the regular maintenance of MCCBs is included in the workshop responsibility system assessment. The regular inspection of MCCB is a planned preventive inspection, which should provide certain inspection tools and instruments according to the regular inspection card, in addition to the human senses. Periodic inspections are also known as periodic spot checks. Mechanical and technical equipment should also be subject to an analytical accuracy test to determine the actual accuracy of the teaching equipment.

The maintenance of plastic housing parts is carried out in accordance with the maintenance regulations. Equipment maintenance procedures are the requirements and regulations for the routine maintenance of the equipment. It prolongs the service life of the equipment and ensures a safe and comfortable working environment.

Its main contents should include

(1) the parts, methods and standards that can be maintained and regularly organized for inspection by the analysis and inspection management system in daily life

(2) The content of the work design, work management methods, the use of tools and materials, the standards to be achieved and the safety matters to be observed;

(3) Check and assess the extent to which the operator maintains the equipment, such as content and methods.