This pressure switch is supplied directly from original equipment manufacturer. It is a customer designed item made for use with Campbell Hausfeld air compressors. The purpose of a pressure switch it to control when your compressor should start or stop building up pressure.

It is a genuine OEM part that is made for Campbell Hausfeld air compressors. The unloader valve is an important component which allows a user to safely drain the air from the tank. Unfortunately, over time it may wear out or get damaged eventually requiring a replacement to ensure your unit operates properly. Note, this high-quality unloader includes multiple parts however it is sold as an individual component.

Check the owner's manual and the diagrams of your model to ensure the correct installation and application. You will need a wrench set and pliers to perform this repair.

Axe murder boyz tour. Removed the small bolt that holds the unloader to the back side of the switch. Note: You have to be careful when removing the unloader.

There is a rubber o-ring type seal that comes out when you remove the unloader. Mine fell out on the floor and I couldn't tell which way the seal goes into the unloader as the seal is different on both ends. If not put in properly it could leak again. I guessed and was successful.

You get a new rubber seal in the package with the new unloader. Pulled the plastic tube off the unloader. Put the plastic tube back onto the unloader.

Installed the rubber o-ring seal. Put the unloader back into the backside of the switch and fastened the small bolt.