The performance and technical conditions for refrigerator car compressor to maintain and protect the equipment by wiping, cleaning, lubricating, adjusting and other general methods are called equipment maintenance. There are four main requirements for the maintenance of refrigerated vehicles:

（1） Clean the inside and outside of the equipment, the sliding surface, screw, rack, gearbox, oil hole, etc. are not polluted by oil, the parts are free of oil leakage and gas leakage, and the debris, debris and dirt around the equipment are cleaned;

（2） Arrange a complete set of tools, accessories, workpieces (products), and organize pipelines;

（3） The oil well is lubricated on time or changed continuously, without dry friction, normal oil pressure, clear oil trace, flat oil path, and the oil quality meets the cleaning requirements of refrigerated truck, oil cup and felt;

（4） Safety in accordance with the safe operation procedures, not exceeding the load of the equipment, complete and reliable safety protection equipment, timely elimination of unsafe factors.

The maintenance of equipment generally includes daily maintenance, regular maintenance, regular inspection and precision inspection of refrigerated vehicles.

Daily maintenance of equipment is the basic work of equipment maintenance. Establish the quota of regular maintenance and material consumption of refrigerated vehicles, and evaluate according to the quota. Regular inspection equipment is a systematic preventive inspection. Besides human senses, there are also certain inspection tools and instruments. According to the regular inspection card, the regular inspection of some people is also called regular inspection. Mechanical equipment should also be checked to determine accuracy.

The maintenance of the equipment shall be carried out according to the maintenance procedure. The equipment maintenance regulation of refrigerator car factory is the requirement and regulation of daily equipment maintenance. Its main contents should include:

（1） The equipment shall be neat, clean, solid, lubricated, anticorrosive, safe, etc., including contents, operation methods, tools and materials used, standards and precautions;

（2） Place, method and standard of routine inspection and regular inspection;

（3） Review and evaluate the contents and methods of equipment maintenance for operators.

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