In the daily use of air compressor in the process, air compressor often do not blow air and insufficient air pressure and other faults, the main performance is: air compressor no pressure discharge and in the engine running, air compressor to the storage tank, the barometer indicates the air pressure can not hit the starting pressure value.
Air inlet valve is not opened:
Was press boot after the first will be slow to establish internal pressure, when pressure is reached 5 bar (most of the air compressor is the case, except special), through the open intake valve solenoid valve control cylinder, air compressor air inhaled into the loading condition, air compressor air intake may have three reasons, the electromagnetic valve (circuit, the valve body, pipeline), cylinder (or diaphragm valve plates, sealing, line), inlet valve, valve plates or diaphragm, seal, piping) fault occurs.
2. False loading of air compressor:
The main reason for false loading of air compressor is that the output point of PLC fails. PLC is in the running loading state. Due to the failure of the output point, no solenoid valve signal is given and the air inlet does not operate.Maintenance PLC to professional air compressor maintenance engineers, non-professionals do not recommend disassembly at will.
3. Minimum pressure check valve failure:
Minimum pressure check valve is the easiest to determine whether there is a failure, when the pressure is high in the machine, but no pressure output, can judge the minimum pressure check valve failure.Minimum pressure check valve failure is the best way to replace.
4. Main engine failure of air compressor:
The main failure of air compressor is the most difficult to solve. The main failure includes:
Yin-yang rotor wear: when there is a large wear between the yin-yang rotor and the inner cavity of the stator, the internal leakage of the air compressor is very large, and the air pressure may be loaded but not inflated.
Air compressor lubricating oil: screw type air compressor special oil price slightly more expensive, some illegal suppliers for users to provide non-air compressor special oil, make the air compressor lubricating oil emulsification phenomenon, can not form an effective gas seal, resulting in the efficiency of the air compressor is very low, even no gas production.The spacetime press operator can hear most of the air compressor in the actual completely empty load and the actual loading of the noise is very different, mainly the suction end noise is very obvious.When the internal leakage is large, the suction end has a noise change, no pressure, this situation can be sure that the air compressor in the lazy air pump.Air compressor loading is a common air compressor failure, general professional air compressor maintenance personnel can help you quickly solve this problem.
Fault reason of insufficient air pressure:
The barometer is out of order.
The transmission belt between the air compressor and the engine is too loose and skidding or the management between the air compressor and the air storage tank is broken or the joint is leaking.
Oily water separator, pipeline or air filter sediment too much and blocked, need timely maintenance.
Air compressor exhaust valve disc seal is not strict, spring is too soft or broken, air compressor cylinder head bolt loose, sand hole and cylinder head gasket flushed and leakage.