Running in maintenance. The running in maintenance must be carried out during the running in period. When the machinery is used within the specified running in period, it should be used according to the corresponding regulations, and the lubrication and fastening conditions should be checked comprehensively. The condition of each part of the whole ladder should be observed, and any abnormality found should be solved in time. The key point of running in maintenance is to replace the lubricating oil of each part, lubricate each part, and fasten each bolt. After the running in period, a secondary maintenance should be carried out

2. Stop maintenance. When it needs to be stopped for a period of time due to season and other factors, it is necessary to stop maintenance. The main work is cleaning, cosmetic surgery, matching, anti-corrosion, etc

3. Storage and maintenance. The storage and maintenance should be carried out carefully according to the storage requirements to reduce the erosion of natural climate on long-term storage ladders