You can check if the excavator is working properly by following these steps:

Observing the operation of the excavator: During the operation, it can be determined that there may be faults in the excavator, such as slow, faulty, flashing, or even stopping abnormalities detected.

Listen for abnormal sounds: If there are abnormal sounds, especially friction and wear sounds, make timely judgments.

Check the liquid level: If the liquid level is too low or too high, it is necessary to quickly check the liquid level and address the cause of the abnormal liquid level.

Check air pressure: Low air pressure may prevent certain components from functioning properly, such as hydraulic pumps or air brakes. Therefore, when diagnosing excavator malfunctions, it is necessary to check if the air pressure is normal.

Instrument diagnosis: In order to compare deep defects, the fault diagnosis instrument of the excavator can be used for diagnosis.