Learning something new like how to work an air compressor can seem discouraging but it is easier than you think. Moreover, the device is so useful that all the effort will pay off in no time.
In this article, we not only show you how to operate air compressors most effectively but also how to maintain and store them right. Let’s not waste time and look into the steps now!
Compressor Preparation
Without bulky motors, air compressors are convenient and quiet to use. However, we should not skip steps to maximize the machine’s durability and our own safety.
First of all, you need to check the machine and everything that comes with it. If your compressor needs oil or gas, you should confirm if it has enough of those fuels. The same thing goes to electric and other extra attachments. It is best to check your manual to see what and how much your compressor needs.
Next, you need to put the regulator valve, the hose, and your power tool together. The compressor should stay on flat ground and not connect to the electrical outlet at this step.

After everything is ready, now you can connect it to electric power. However, do remember that your cord should be grounded and extension cords are not recommended.
How Does an Air Compressor Work?
When atmospheric air is compressed, potential energy is created that may be stored in a tank for later use. When the compressed air is purposefully released, pressure builds up similar to an open balloon, transforming the potential energy into useful kinetic energy. From there, other pneumatic tools may be powered by utilizing this energy transfer.
Combustion engines and industrial air compressors both operate similarly. A pump cylinder, piston, and crankshaft are often needed for air compressor functioning in order to transmit energy for a range of functions. These fundamental parts may provide power to run instruments like drills, nail guns, grinders, sanders, and spray guns or they can assist supply air for items like tires or inflatable pool toys.
Piston Air Compressor Functionality
Consequently, how does an air compressor obtain air? It consists of two steps for those who employ pistons: increasing the pressure and decreasing the air volume. The majority of compressors employ a reciprocating piston system.
Usually, an air compressor:
- a gas or electric motor
- a valve with an air intake and an air discharge
- a compressor pump for air
- a storage tank
In order to condense the volume, the compressor pulls in air and produces a vacuum. The air is forced out of the chamber and into its storage tank by the vacuum. The compressor shuts off when the air pressure in the storage tank reaches its maximum level. The duty cycle is the name of this procedure. When the pressure falls below a certain level, the compressor will start up again.
What Is Air Displacement?
Each air compressor operates on the principle of air displacement. The compressor’s internal mechanics move when air is forced into the chamber to compress it. For this usage, there are primarily two forms of air displacement:
- Positive displacement: This technique, which draws air into a chamber, is used by the majority of air compressors. In order to compress the air there, the machine decreases the chamber’s capacity. It is then transferred into a storage tank and kept for a later use.
- Dynamic displacement: Also known as nonpositive displacement, this technique introduces air into the chamber using an impeller with moving blades. Air pressure is created more quickly thanks to the energy generated by the blades’ action.
How To Work An Air Compressor
Now we are on to the operation of air compressors. Before turning the machine on, you should test the safety valve first. Once you find the valve plug near the hose, pull it toward yourself. If you hear the air hissing, then it works. Now, you can release it back.
Then, you can turn on the air compressor. Do not rush into using it right away. It will need some time to pressurize. When you see the gauge on the side of the tank stops moving, the air inside of it has reached maximum pressure.
Onto the third step, this is the time you check how much pressure your tools need. Every tool has different ratings so you should pay attention when switching them. However, most of the time for safety reasons the pressure should be around 75 to 85 PSI.
Once you got the needed pressure for your tool, you can adjust the air compressor’s PSI to match that number. Just find the regulator knob on the hose and twist it until it reaches the right number.

Finally, now the air is ready to be used. You can release it for inflating your tires, removing bolts or any other purposes. Some smaller compressors may work slower since their tanks are small and cannot refill fast enough. Simply be patient or turn off and check the machine if something wrong happens.
Air Compressor Storage
Even when turning off your air compressor, there are things you should notice if you want to keep it safe. Firstly, it is necessary to drain the pressurized air. You can do it by twisting the air tank valve counterclockwise. Besides, do not forget to put it back once all the air is out.
Secondly, you should not detach the hose before making sure the pressure gauge is off and the machine has shut down completely. Moreover, you should also wait for the pressure to be released. To speed this process up, you need to pull the pressure-relief valve.

Finally, you can release the hose and put the air compressor into storage. A cool and dry place with regular airflow is ideal to keep the machine. It is also advised that even if you do not use it, you should check on it frequently to see if there is any spilled oil or any other problem.
In conclusion, it is not hard to operate an air compressor. Nevertheless, users should be careful and pay attention if they want the best outcomes. Consequently, it is wise to follow our step by step guide on how to work an air compressor. Do not hesitate to put it into practice and remember you can always come back to this article if you forget something. Good luck!