Common fault diagnosis and maintenance techniques for air compressors

Release time：2024/12/17   Click ：

Various faults are inevitable during the operation of air compressors. Timely and accurate diagnosis and maintenance of faults are crucial for restoring normal equipment operation. Here are some common diagnostic methods and maintenance techniques for air compressors.
One of the common faults is that the air compressor cannot start. Firstly, check whether the power supply is normal, including whether the power supply voltage is stable and whether the fuse is blown. If the power supply is normal, it is necessary to check the control circuit of the motor, check whether the relays, contactors, etc. are working properly, and whether there is any adhesion or damage to the contacts. In addition, faults in the motor itself, such as winding short circuits, open circuits, etc., may also cause it to fail to start. For motor faults, professional electrical testing equipment needs to be used for detection and corresponding repair or replacement.
Abnormal pressure is also a common malfunction of air compressors. If the pressure of the air compressor is too high, it may be due to pressure switch failure, safety valve malfunction, or unloading valve not working properly. At this point, it is necessary to check whether the set value of the pressure switch is correct, whether the safety valve is blocked by impurities, and whether the seal of the unloading valve is damaged. For situations where the pressure is too low, it may be due to blockages in the intake filter, internal leaks in the compressor, or loose belts. It is necessary to clean the intake filter, check the sealing components of the compressor, replace damaged parts, and adjust the belt tension.
The excessive noise of the air compressor is also a problem that cannot be ignored. Excessive noise may be due to wear of internal components of the air compressor, such as damaged bearings and worn piston rings. At this point, it is necessary to disassemble the air compressor, inspect the worn parts, and replace them. In addition, loose anchor bolts and pipeline resonance of the air compressor can also cause increased noise. The anchor bolts should be checked and tightened to fix the pipeline or take shock absorption measures.
When repairing an air compressor, maintenance personnel should have solid professional knowledge and rich practical experience, strictly follow the operating procedures to ensure the quality of maintenance. At the same time, comprehensive testing and debugging should be carried out after maintenance to ensure that the air compressor can operate normally and stably.