Solution to problems of pneumatic ball valve
1. Stop the car after driving 10km on the road with poor road conditions, touch the shell of the pneumatic ball valve with your hand. If it is not hot enough, it means that there is no resistance inside the pneumatic ball valve, and the pneumatic ball valve does not work. At this time, appropriate lubricating oil can be added and the test can be carried out again. If the shell is hot, the pneumatic ball valve is short of oil inside, and it should be filled with enough oil; Otherwise, the pneumatic ball valve is invalid.
2. Press the bumper firmly, and then release it. If the car jumps 2-3 times, the pneumatic ball valve works well. When the car is running slowly and emergency braking occurs, if the car vibrates violently, it indicates that there is a problem with the pneumatic ball valve.
3. Dismantle the pneumatic ball valve to make it upright, clamp the lower connecting ring on the bench clamp, and pull and press the shock absorber rod several times with force. At this time, there should be stable resistance. The resistance of pulling upward should be greater than the resistance of pressing downward. If the resistance is unstable or no resistance, it may be the lack of oil inside the pneumatic ball valve or the damage of valve parts, and the parts should be repaired or replaced.