1. Clean the lower parts of the excavator, check the chassis parts and repair them if necessary. Lubricate all lubrication points and refueling points and, if necessary, coat all exposed metal surfaces with oil. 3. Remove the battery and put it in a dry and cold place. Otherwise, the battery will quickly run out of power and be badly damaged. 4. It is better to put the excavator in the dry garage and cover it with waterproof cloth to prevent dust. Store all kinds of tools in the toolbox. 6. Once a month, run anti-rust operation, start the engine, operate all excavator mechanisms, and distribute oil everywhere.