Answer:
(1) Fault phenomenon. The air intake butterfly valve cannot be opened and the servo cylinder adjustment mechanism
does not work.
(2) Cause analysis.
1) Fault in the air intake butterfly valve mechanism, such as loose connecting rod bolts;
2) Wear and leakage of the servo cylinder diaphragm;
3) Damage to the loading solenoid valve;
4) Failure of the discharge solenoid valve causes the control air to be discharged;
5) Leakage in the water filter cup or control air pipeline;
6) Blockage or failure of the capacity control valve;
7) Incorrect setting of the pressure switch or drift after setting.
(3) Elimination method
1) Eliminate the butterfly valve mechanism fault or replace the butterfly valve;
2) Replace the servo diaphragm;
3) Eliminate the loading solenoid valve fault or replace the loading solenoid valve;
4) Eliminate the discharge solenoid valve fault or replace the discharge solenoid valve;
5) Replace the water filter cup or eliminate the leak;
6) Replace or clean the capacity regulating valve;
7) Replace or reset the pressure switch.
