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Level 1 maintenance (routine equipment upkeep) includes, but is not limited to: routine inspection of the equipment, cleaning, refueling, replacement of consumables, and repair of simple parts, with records of all replacements and repairs kept. 1. The appearance is neat. 2. Check the operating condition of all components, and tighten any loose parts, including securing loose pipelines and ensuring that equipment feet are firmly fixed; address any leaks caused by insufficient tightening of flanges. 3. Hydraulic lubrication: clean the oil circuits and pipelines, clean the oil filters, and add oil to or replace the oil in the tank. 4. The safety protection measures and indicating instruments are complete and reliable. The operators in the department using the equipment are responsible for its primary maintenance, and bear direct responsibility for keeping the equipment in good condition and ensuring its effective use. She Bei Guan Li Zhi Du – Level 2 maintenance: 1. Level 2 maintenance requires completion of all the tasks involved in level 1 maintenance; it involves cleaning all the lubricated parts, checking the quality of the lubricant according to the oil change schedule, and replacing the lubricant as necessary. 2. Check the dynamic technical condition of the equipment and its key operating parameters (noise, vibration, temperature rise, etc.), adjust the level of installation, replace or repair components, clean or replace motor bearings, and measure insulation resistance, etc. After secondary maintenance, the performance is required to meet the process specifications: there should be no oil leakage, air leakage, or electrical leakage, and parameters such as noise, vibration, pressure, and temperature rise must be within acceptable limits. 3. Disassemble and inspect certain parts of the equipment as planned, clean the specified areas (such as the oil filter screens and the cleaning water jackets), clear the oil circuits and pipes, replace or clean the oil lines and filters, and tighten all parts of the equipment. 4. Before and after the secondary maintenance, the dynamic and static technical conditions of the equipment should be assessed, and proper records should be kept. Secondary maintenance is carried out mainly by professional repair technicians, with operators participating. She bei guan li zhi du – Level 3 maintenance: Level 3 maintenance requires that the Equipment Department and Power Department entrust the manufacturer or specialized agencies to carry out performance restoration checks or maintenance repairs. Requirements for operators regarding equipment maintenance: 1. Operators must receive training to achieve the ‘four understandings’ and ‘three abilities’, and only after passing the assessment can they work with a valid certificate. 2. Operators must strictly follow the operating procedures for starting, running, and shutting down the equipment. 3. Operators must properly carry out equipment lubrication, maintain the integrity of the lubrication system, add lubricating oil (grease) as specified, and carefully keep records of equipment lubrication. 4. Operators must keep the equipment clean and promptly eliminate any leaks or spills. 5. If any abnormality is detected in the equipment during operation, the cause should be investigated immediately. A equipment maintenance ticket should be filled out promptly, and maintenance personnel should be contacted for diagnosis and repair. In emergency situations, decisive actions should be taken or the machine should be stopped immediately; the dispatcher and relevant personnel should be informed, as well as the workshop supervisor. The machine must not be restarted until the cause has been identified and the fault has been resolved. Any unresolved issues should be carefully recorded in the equipment inspection logs and shift handover records, and explained to the next shift. 6. The equipment, pipelines, instruments, foundations, etc., within each contracted area must be kept in good condition and clean, with effective anti-corrosion, insulation, and anti-freezing measures in place. Requirements for maintenance personnel regarding equipment care: 1. Maintenance workers must have clear divisions of labor, and they are responsible for inspecting, maintaining, and repairing the equipment, pipelines, and instruments assigned to them. 2. Maintenance workers should conduct inspections at regular intervals and in designated locations, and proactively inquire with operators about the operating condition of the equipment. 3. Maintenance workers must eliminate any defects that are identified promptly. For defects that cannot be fixed immediately, they should be recorded in detail and reported in a timely manner, with efforts to resolve them as part of the equipment maintenance process. 4. Upon receiving the equipment maintenance ticket, the maintenance technician must arrive at the site within 10 minutes (15 minutes during night shifts). In cases of emergencies that pose a threat to production, repairs must be carried out immediately. If repairs cannot be carried out right away due to shortages of personnel, technical capabilities, or spare parts, the technician should contact the supervisor in charge of the workshop and explain in detail the reasons why repairs are not possible. The operator must then record these details accurately on the equipment maintenance ticket. 5. The supporting equipment shall not be disassembled for use without the approval of the Equipment Department and the Power Department. Backup equipment: There should be a dedicated person in charge of the backup equipment, who is responsible for regular inspection and maintenance. Attention must be paid to preventing dust, moisture, freezing, and corrosion. For transmission equipment, it is also necessary to carry out regular turning and switching operations to keep all equipment in good condition. For equipment that is kept in reserve for long periods or is idle, records should be maintained, a dedicated person should be assigned to manage it, and regular maintenance should be carried out.