Second. Machinery maintenance worki ncluds: routine maintenance, regular maintenance and special maintenance. Regular maintenance can be divided into first-class maintenance, second-class maintenance and third-class maintenance, and special maintenance can be divided into seasonal maintenance and shutdown maintenance.

1. Routine maintenance focuses on cleaning, lubrication, inspection and fastening. Routine maintenance shall be carried out according to the requirements during and after the operation of the machine. The first level maintenance is carried out on the basis of routine maintenance, and the key work contents are lubrication, fastening and inspection of relevant parts and their cleaning work. Secondary maintenance focuses on inspection and adjustment. To check the mechanical components, transmission components, electrical components. The key point of the third level maintenance is to detect, adjust, eliminate the hidden trouble and balance the wear degree of each component. The parts that affect the performance of the equipment and the parts with fault symptoms should be diagnosed and inspected, and then necessary replacement, adjustment and troubleshooting should be completed.

2. Seasonal maintenance refers to the inspection and repair of conveying system (shaft and belt conveying), air compressor system (checking the lubrication and sealing of air compressor), control system and other components of packaging equipment before summer and winter. Maintenance out of service means that when the packaging equipment needs to be shut down for a period of time due to seasonal factors or product demand factors, it is necessary to do a good job in cleaning, cosmetic, supporting, moisture-proof, anti-corrosion and other work.