NOTICE:
First of all, let me introduce the reasons why the pressure rise of the barometer pressure gauge is slow. Please look at it together!
(a) Leakage of the pipeline;
(b) The air pump is not working properly;
(c) The check valve is rusted and stuck;
(d) The oil-water separator oil drain bolt is not closed or the pressure regulating valve is leaking.
Troubleshooting method:
Firstly, the pipeline leakage should be excluded, and then the working state of the air pump should be checked. Remove the air pump outlet pipe and press the air outlet with your thumb. If the exhaust pressure is low, the air pump is faulty. If the air pump is in good working condition, check the oil water separator oil drain plug or pressure regulating valve to avoid bypass and check for trouble. Finally, check the two check valves in the three-way joint. The check valve will cause the air reservoir to be inhaled or the air intake to be slow.