What are the reasons for the loud sound of the air compressor host?

Check whether the silencer is installed;

Check whether the muffler is tightened or damaged;

If the above phenomenon occurs, replace the muffler and check whether the machine sound is normal:

If it is determined that there is no problem with the silencer, it means that there is an internal problem with the machine head. There are two situations:

 ① The inner cup and cylinder liner of the machine head are seriously worn, which can be judged by the naked eye after disassembly. If the sound is normal after replacement, it means that the wearing parts are worn; if there is still abnormal sound, it means that the bearing inside the machine head is damaged.

② There is a problem with the bearing. The simplest way to judge is: disassemble the bearing and turn it by hand, and listen for obvious clicking sounds. If there is any noise, it means the bearing is damaged; if there is no such abnormal sound, it cannot be determined whether there is a problem, and it needs to be installed in the machine. You can test it on your head to see if there is any problem.