How to change oil in Central Pneumatic Air Compressor

Whether you’re a mechanic or just someone who likes to do things yourself, sooner or later, you’ll need to change the oil on your central pneumatic air compressor.

Oil is an important part of your air compressor. Not only does it help the machine run smoothly, but it also helps to protect the internal parts from wear and tear. You can complete this simple task in just a few minutes with the right tools and instructions.

If you’re not sure how to change the oil on your central pneumatic air compressor, don’t worry. I’m here to help. I will show you how to change the oil on the central pneumatic air compressor in just five easy steps.

How to change the oil on central pneumatic air compressor

What You’ll Need :

  • New oil
  • Funnel
  • oil retriever cup
  • Socket wrench

Step 1: Prepare the Machine

It is important to prepare the machine adequately before changing the oil. This means that you need to turn off the power and release any pressure that may be in the tank.

Step 2: Remove the Shroud

The shroud is the metal cover that protects the engine and other internal parts of the machine. To remove it, you’ll need to use a socket wrench. Simply loosen the bolts that hold it in place and pull it off.

Step 3: Drain the Oil

Draining the oil is the next step in changing the oil on your central pneumatic air compressor. It’s best to use an oil retrieval cup for this. Place the cup under the drain valve and open it up. Let the old oil drain into the cup until it is empty.

Step 4: Replace the Drain Plug

Once the old oil has been drained, it’s time to replace the drain plug It is is a simple task that takes only a few seconds. All you need to do is screw the plug back in place and tighten it with a socket wrench.

Step 5: Refill with New Oil

Finally, it’s time to pour in the new oil. To do this, you’ll need to use a funnel. Pour the new oil into the funnel and then carefully pour it into the opening on the compressor. Once you have done this, you can place the shroud back into place and turn on your power.

Read My Latest Blog post About Central Pneumatic Air Compressor Brand.

Helpful Tips:

  • Be sure to use the correct type of oil.
  • Always follow the manufacturer’s recommendations when it comes to changing the oil.
  • Make sure that the compressor is completely cooled down before changing the oil.
  • Be careful not to overfill the tank with oil.
  • When working with oil, always wear safety goggles and gloves to protect your hands.

How Much Oil Does My Air Compressor Need

It depends on the compressor’s horsepower and size. The best way to know is to check the manual because it will tell you the exact amount of needed oil. After adding the oil, check the insight glass on your air compressor to ensure that the oil level is correct.

What Type Of Oil For Central Pneumatic Air Compressor

It is recommended that you use SAE 20W-30 oil. This oil is designed for high-performance air compressors. It has a higher viscosity than other oils, which means that it will provide better protection for the internal parts of your compressor.

When Should I Change the Oil in My Air Compressor

It is typically recommended that you change the oil in your air compressor every 300 to 500 hours of use. However, this may vary depending on the compressor. Be sure to check the manual for the specific oil change intervals.

How To Check Oil Level On Central Pneumatic Air Compressor

The best way to check the oil level on your central pneumatic air compressor is to use the insight glass. This is a small window located on the side of the compressor. The oil level should be at the top of the glass. If it is below that line, you will need to add more oil.

Can I Use Motor Oil in my Air Compressor?

Yes, you can use. However, it is not recommended. Motor oil is designed for internal combustion engines and will not provide the same level of protection for your air compressor.

What Is the Difference Between Air Compressor Oil & Motor Oil?

Air compressor oil and motor oil are both lubricants that help to keep moving parts in engines running smoothly. However, there are some key differences between the two oils.

Air compressor oil is mainly used for lubricating the bearing, piston rings, and valves in the compressor. The oil also helps to cool the air compressor by dissipating heat. Air compressor oil is typically thinner than motor oil and has lower viscosity. This helps to keep the air compressor running smoothly and efficiently.

On the other hand, motor oil is designed to protect the engine from high temperatures and friction. It is also important to note that air compressor oil is incompatible with motor oil and vice versa. Attempting to use either oil in the wrong application can damage the engine. 

Why is Synthetic Oil better for my air compressor?

Synthetic oil is more expensive, but it has a smoother texture and flows better at low temperatures, making it easier to start the compressor in cold weather. It also has some benefits over regular oil for air compressor maintenance.

The life of synthetic oil is longer and it doesn’t need to be changed as frequently because it does not break down as quickly. It also doesn’t form deposits that can clog the valves and other parts of the compressor. This can improve the performance of air compressors and reduce the need for repairs.


Changing the oil on a central pneumatic air compressor can be a tricky task if you’re not familiar with the process. However after following this guide you can easily change the oil on your air compressor without any problem.

Just wear the appropriate safety gear and read the manual carefully. And if you’re still not comfortable completing this task on your own, it’s always best to consult with a professional.

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By Matthew

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