The operations primarily focus on core heavy-duty components such as the unit's gearbox, generator, main shaft, and blades. Equipment is prone to irreversible failures such as wear, cracks, and leakage due to long-term exposure to alternating loads and sand erosion. It is necessary to coordinate the lifting equipment, transportation vehicles, and maintenance windows for replacement. Specialized replacement can completely eliminate major safety hazards of the unit, shorten downtime, significantly reduce repeated downtime losses, effectively increase the number of available hours of the wind turbine, reduce power generation losses, and ensure long-term stable power generation revenue for the station.