How to exhaust the air in Wuling Hong Guang water tank?

The air generated by Wuling Hong Guang water tank needs to be discharged at the small kettle pipe of the water tank. The specific operation steps are as follows:

1. Press the brake pedal of Wuling Hong Guang.

2. Twist the car key of Wuling Hong Guang and start the engine.

3. The instrument of Wuling Hong Guang lights up, so that the engine can run to 90 degrees Celsius.

4. Turn off the engine and let the water temperature drop to normal temperature.

5, open the front turn.

6. Slowly unscrew the lid of the kettle and let out the high-pressure gas inside.

7. Add antifreeze to the highest position.