Long-term parking maintenance: If the excavator needs to be parked for a long time, the machine should be cleaned and comprehensively inspected to eliminate hidden trouble. Fill the fuel tank with fuel, prevent the tank from rusting, and add appropriate amount of fuel stabilizer. Drain the engine coolant and hydraulic oil, after filtering and testing, if the oil is good, it can be injected back before restarting; If the oil quality is not good, it should be replaced with new oil. Apply anti-rust oil to the exposed parts of the machine, such as piston rods, pins, etc., to prevent rust. Cover the excavator with a cloth to prevent dust and debris from entering.

Maintenance after harsh environment operation: After working in harsh environments such as dust, humidity, and high temperature, the frequency of cleaning and inspection should be increased. For example, after working in a dusty environment, clean the air filter and radiator in time to prevent dust clogging; After working in a humid environment, check the electrical system and components in the engine compartment to prevent moisture and rust; After working in a high temperature environment, check the performance of the cooling system to ensure that the engine and hydraulic system can properly dissipate heat.