Everything in the world has rules.
For maintenance, there are also certain rules to follow.
These rules are summed up by the maintenance God in practice. Some old birds may have known and even memorized them, but for some novices, experience is still very valuable, which can help you avoid some detours.
Investigation first, then familiarity
When the air compressor fails, the first thing to do is to ask about the process and phenomenon of the failure. Just like a doctor's diagnosis of a patient, the first thing to do is to ask about the patient's condition, and then take the right medicine.
According to the situation and clue provided by the user, analyze the fault (this is especially important for beginners), and combine the working principle of the air compressor and the function of each component to make sure that you have a clear idea and have a clear target.