With global emphasis on environmental protection and sustainable development, electric heavy trucks are rapidly rising in the logistics and transportation field. Maintenance of heavy truck charging piles is crucial for ensuring the continuous operation of these trucks. Compared with ordinary charging piles, heavy truck charging piles have unique needs such as high power, adaptation to harsh environments, and compatibility with multiple models. 1. Electrical system maintenance: Regular inspection of power lines and connectors. 2. Dealing with harsh environments: Cleaning dust in high-dust environments and optimizing heat dissipation in high-altitude areas. 3. Compatibility maintenance: Software and hardware updates to adapt to various brands and models.