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Repair Center  How to Maintain an Air Compressor

Why Read This Article?

  • Save money by servicing your air compressor yourself.
  • Keep your air compressor running in top form.

Article Breakdown

Repair Information:
Difficulty: Easy
Duration: 15-30 minutes
Frequency: Once per year or as needed Replace the air filter
1. Pull the old filter away from the compressor
.
2. Install the new air filter.
Change the oil
1. Warm up the oil
.
2. Remove the fill-cap.
3. Remove the drain plug.
4. Replace the drain plug.
5. Add new oil to the compressor.
6. Replace the fill cap.
Replace belt as needed
1. Remove the belt cover
.
2. Slide the old belt off of the pulleys.
3. Install the new belt.
4. Reinstall the belt cover.

Video

Tools & Materials

  • Phillips-head screwdriver
  • Wrench

How to Maintain an Air Compressor

November 9, 2012
This article will show you the steps to service and maintain your air compressor at home.  
Regular maintenance can keep your air compressor running and operating like the day you bought it. And we're happy to be here to help you work through this maintenance. Keep reading for a basic step-by-step service guide for your air compressor.  

 
Remember to use our Porter Cable parts finder for any spare air compressor parts you may need.   
 
Replace the air filter

1. Pull the old filter away from the compressor

It may be jammed into the air box, so use a little force and it should come right out.

 

 

2. Install the new air filter  

The new filter will be installed the same way the old one was removed-- use your fingers to evenly place the air filter back into the air box.

 

 
[Back to Top]
  Change the oil

1. Warm up the oil

Turn on the compressor for a few minutes to heat up the oil so it drains easier.

 


2. Remove the fill-cap

This allows air to enter the tank for easier drainage.

 

 


3. Remove the drain plug

Use a wrench to loosen and remove the drain plug. Make sure to have a container ready to catch the old oil that will drain after removing the plug.

 

 


4. Replace the drain plug

Once the oil has drained, replace the drain plug securely.

 

 


5. Add new oil to the compressor 

Consult your compressors owners manual to find out how much oil you need to add -- then add the appropriate amount of oil to the compressor.

 

 


6. Replace the fill cap 

 This will be screwed back into its original location where the oil was just added.


  [Back to Top]    Replace belt as needed

1. Remove the belt cover

Remove the bolts or tabs that fasten the cover and set the cover aside.

 


2.  Slide the old belt off of the pulleys 

You'll now have access to the belt. If the belt is worn or damaged you can replaced it by simply sliding it off of the pulleys.

 

 


3. Install the new belt 

 Install the new belt the same way it was removed -- slide the belt onto the pulleys.

 


4. Reinstall the belt cover 

Set the belt cover back into its original location and fasten it with the bolts or tabs that were removed earlier.

   
[Back to Top]
  Conclusion With a little help from this guide, you should have no problem ditchin' the repair shops for do-it-yourself maintenance. Saving money will never feel so rewarding.  
Find parts for all of your power tool maintenance needs on our page here.
  [Back to Top] What We're About   

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