Air compressors will inevitably fail during use. We have summarized several common faults of air compressors, which will definitely help you quickly troubleshoot and repair them.
How to cancel the shutdown of the air compressor? Summary of Air Compressor Faults and Troubleshooting Methods
Air compressors will inevitably fail during use. We have summarized several common faults of air compressors, which will definitely help you quickly troubleshoot and repair them.
- The exhaust temperature of the unit is high
(1) The temperature sensor does not work. Countermeasures: It is recommended to replace;
(2) The lubricating oil specification is incorrect or deteriorated. Countermeasure: Check the oil number and change the oil product. The old oil must be completely drained and injected into the new oil;
(3) The lubricating oil level of the machine is low. Countermeasure: add oil to the position of 1/2-2/3 of the sight glass;
(4) The temperature of the computer room is high. Countermeasures: strengthen indoor ventilation;
(5) The oil filter is clogged. Countermeasures: removal and replacement;
(6) The cooler is blocked and the heat exchange is poor. Countermeasures: Check and clean the cooler;
(7) The cooling fan is not working properly. Action: Troubleshoot or replace the fan.
- The discharge temperature of the air compressor is lower than the normal value
(1) The ambient temperature is too low. Countermeasures: reduce the cooling area of the cooler;
(2) Empty time is too long. Countermeasures: increase air consumption;
(3) The temperature sensor is faulty. Countermeasures: adjustment or replacement;
(4) The temperature control valve is faulty. Countermeasures: replace;
(5) The oil flow is too large. Countermeasure: reduce the oil control valve flow.
- The oil content of the exhaust gas is high, and the lubricating oil cycle is short
(1) The oil level is too high. Countermeasures: Check the oil level and drain it correctly, the oil level is at 1/2-2/3 of the sight glass;
(2) The oil return line is blocked. Countermeasures: disassembly and cleaning;
(3) The check valve in the return line is damaged. Countermeasures: replace;
(4) The exhaust pressure is too low when the air compressor is running. Countermeasure: Set the pressure switch to the set value.
(5) The oil and gas separation filter element is damaged and invalid. Countermeasures: replace;
(6) Pressure keeps valve springs fatigued. Countermeasure: replace with a new spring.
- The starting current of the air compressor is large and trips
(1) The problem of starting the air switch. Countermeasures: repair or replace;
(2) The input voltage is too low. Countermeasure: adjust the input voltage;
(3) The star-delta conversion time is too short. Countermeasure: reset the interval time;
(4) The main motor or the main motor is faulty. Countermeasures: The belt can be removed or the connection with the motor can be disconnected, and a few laps can be manually started to verify whether the main engine is suspended or has a lot of friction;
(5) The intake valve is wide open or stuck. Countermeasures: Regular maintenance and replacement of intake valve repair kits;
(6) The wiring is loose. Countermeasures: Check for heat and re-wiring.
concluding remarks
Screw air compressors are general-purpose equipment that has been widely used in all walks of life. The basic principles have been mastered and the relevant operating procedures are familiar. Common faults can be analyzed and dealt with according to the phenomenon, and routine maintenance can be carried out independently, which not only greatly improves the production guarantee but also improves the personal professional level. As a mechanical device, the air compressor is only the basis for mastering the theoretical knowledge. Only with more operation and more practice can you really use and maintain the air compressor.
