1. Shutdown and power off: Before starting the replacement operation, be sure to ensure that the drilling rig is completely shut down and the power is cut off to prevent accidental startup and injury.
2. Support stability: If you need to lift or remove heavy parts, use a suitable jack or support equipment, and ensure that it is stable and reliable to prevent the parts from falling suddenly.
3. Personal protective equipment: Wear appropriate personal protective equipment, such as hard hats, safety shoes, gloves, goggles, etc. to protect your body from injury.
4. Tool inspection: Check the integrity and reliability of the tool before use, and avoid using damaged or defective tools.
5. Prevent slips and falls: Keep the work area clean, dry, free of oil and debris, and prevent slips and falls.
6. Multi-person collaboration and communication: If multiple people collaborate, clarify the division of labor and command signals, maintain good communication, and avoid misoperation.
7. Parts placement: The removed wearing parts and tools should be placed in a safe and stable position to avoid falling and injuring people or affecting operations.
8. Release pressure: For replacement of parts involving hydraulic or pneumatic systems, the pressure in the system should be released first to prevent injury caused by sudden release of pressure.
9. Follow operating procedures: Strictly follow the operating procedures and relevant safety regulations of the equipment for replacement operations, and do not change the process without authorization.
10. Training and qualifications: Operators should undergo professional training, have the corresponding skills and knowledge, and be familiar with the replacement process and safety precautions.