Maintenance of drilling rig:
1. Implement a system of designated personnel and machines, strict shift handover, meticulous maintenance and upkeep of equipment, reasonable use of equipment, strict adherence to operating procedures, familiarity with the structure and operational characteristics of drilling machinery and equipment, monitoring and paying attention to abnormalities, and ensuring the safe use of equipment.

2. Arrange the workpieces, tools, accessories, etc. of the drilling machinery neatly; Equipment components and safety protection devices are complete; All labels and nameplates should be complete and clear; Lines and pipelines should be installed neatly, safely, and reliably.

3. Lubricate on time, with quality and quantity, adding and changing oil, and keeping the oil level visible; The fuel tank, oil pool, and cooling tank should be clean and free of debris such as iron filings; The oil pot, oil cup, and oil nozzle are complete, and the oil felt and oil line are clean; The oil pump is working normally, the oil circuit is unobstructed, and the bearings in all parts are well lubricated.

4. Clean the inside and outside of the equipment, without oil stains, dirt, rust, or debris; The sliding surfaces in relative motion (such as gears, racks, screws, rods, switch levers, bearing shells, shaft necks, etc.) are free of oil stains, bumps, and burrs; No oil leakage, no water leakage, no air leakage, no electric leakage; Keep the ground around the equipment clean regularly