Several Troubleshooting Tutorial Encountered by Oil-free Air Compressor

1. oil free air compressor current is too high:

the common causes of this failure are mainly the following:

1. The host fails

2. Exhaust pressure is too high

3. The voltage is too low: Generally, the power of the oil-free air compressor is rated. Therefore, according to the formula, if the voltage is too low, the current will definitely be too high. This is well understood.

Common Failure Causes and Solutions of Oil-free Air Compressor (Fig. 1)

2. oil-free air compressor keeps working, but the gas supply is still insufficient:

common causes of this failure are:

1. Air leakage: The judgment method is to listen to the external pipes of the air compressor, the air supply pipe of the air compressor on the air storage tank, the one-way valve, safety valve, pressure switch and other joints for air leakage. If so, it must be handled.

2. Wear of the head leather bowl: The service life of the general leather bowl is about 3 years, and it must be replaced after the expiration date.

3. Exceeding the rated flow

4, the machine overload work

3. oil-free air compressor works intermittently and the air supply is insufficient:

the causes of this failure are:

1. Start capacitor leakage. When leakage occurs, the compressor head can still be started, but the speed is slow and the current is large. Due to the large current, the head heats up quickly, and the head will be protected and shut down soon. This problem can be changed to a new one, but it should be noted that UF numbers should be the same, too large or too small is not good.

2. Insufficient voltage. There is a buzzing sound at the start. If the operating current is too large at this time. Oil-free air compressor head working minimum voltage of 200V, below this voltage head is difficult to start, frequent start will cause the head temperature rise. Final circuit protection shutdown. Until the temperature drops and turns on again. For areas with frequent voltage fluctuations, it is recommended to install an automatic voltage regulator.

4. oil-free air compressor can work, but the noise is obviously larger than the original:

the causes of this failure are:

1. The air compressor fixing device or accessories are loose

2. Abnormal operating current

3. The motor bearing is seriously worn

4. The cup is damaged

the 5. air compressor must put the air pressure of the air storage tank to zero air pressure before starting work every time it works, otherwise it cannot be started. When the machine is powered on, you can see that the machine head turns very slowly, there is a buzzing sound, and the current is also large:

the cause of this kind of failure is probably that the one-way valve is blocked. The one-way valve of the oil-free air compressor is installed between the air compressor outlet pipe and the gas storage tank. The main function is to allow the gas from the machine head to only enter the gas tank. The gas from the gas tank cannot come out. Inside is a spring and a film. If dirt sticks to the film, it will cause reverse air leakage, then the second start of the machine head will be pressed by high pressure and unable to start. The solution is to use a plate to open the valve cover behind the one-way valve, please wash it and put it back as it is.