Compressor Drain Valve Leaking

Drain the air tank from the drain valve.

Compressor drain valve leaking.

How to fix it. Unloader valve is leaking air when the air compressor reaches the normal cut out pressure and stops but you notice while the air compressor is off that air is leaking out of a valve attached to or perhaps inside of the air compressor pressure switch. The valve on the outside of the pressure switch may look something like the one in the image. Remove the regulator body from the manifold with a wrench.

Http amzn to 2ir0elq pittsburgh forge 12 piece screw extractor. Which i ve never seen done on any compressor tank. 1 unplug the compressor 2 drain all the air from the tank 3 remove the lines connected to the tank check valve 4 remove the tank check valve inspect clean re install the same one or install a new one 5 reassemble and test the compressor operation. Besides the drain valve is relatively easy and inexpensive to fix.

Product links below in order of appearance. If the check valve is now. You can try to clean out the old one. Makita mac700 air compressor.

They usually use a high strength thread locker on the drain valves so it may just be very very hard to remove. Clean the regulator body air piston spring and cap with wd40. I would recommend replacing the valve and using some thread locker when you install the new one. Turn off and unplug the air compressor.

By the way c clip ring shown in the picture prevents the screw from being removed from the drain valve assembly.