Answer:
(1) Confirm that the power is supplied and the indicator light is on.
(2) Open the oil and gas tank drain valve, drain the condensed water at the bottom of the oil and gas tank, and then close it.
(3) Check that the oil level is above the minimum oil level line.
(4) Check that the cooling water inlet and outlet doors are open and the water supply is normal.
(5) The air compressor outlet door is open.
(6) Check the water filter cup for water leakage.
(7) Check whether there is any air leakage, oil leakage or water leakage at each connection.
