Craftsman Air Compressor Pressure Switch Adjustment

Depending on the make and model of pressure switch one can adjust only the pressure setting with a fixed differential or one can adjust both the pressure setting and the differential.

Craftsman air compressor pressure switch adjustment.

The air compressor will start immediately. A pressure switch of an air compressor helps to start and stop the compressor automatically. If the pressure switch comes with a fixed differential it is usually in the range of 0 8 1 bar and should normally be stated somewhere on the housing or. To make a compressor pressure switch adjustment you will need to remove the cover from your pressure switch.

I popped the cover off my craftsman 40 gallon compressor carefully adjusted the torx nut about a half turn in. The pressure switch is not meant to be adjusted as the pressure might exceed safe limits for the tank. The pressure switch on your air compressor is factory set. Let the air compressor run until it shuts off.

This shut the unit off right at 142 pounds ish. It does that by letting you adjust the cut in and cut out pressure. This is the cut out pressure setting. Make sure you have unplugged the air compressor and remove the cover off the pressure switch.

Before setting the cutout pressure point you need to first set the cut in pressure point. The best policy is to replace the pressure switch. If the pressures are not correct on the air compressor it is because the bellows inside the pressure switch has hardened or broken. Craftsman 5140117 69 air compressor pressure switch genuine original equipment manufacturer oem part.

In most cases i find the cut in pressure screw to be closest to the compressor motor. This video gives an explanation on how to adjust an air compressor pressure switch as well as basic wiring instructions. Adjustment will vary depending on t. Steps to adjusting the air compressor pressure switch.

Plug in the air compressor and turn the on off switch to the on or automatic position. Make offer air compressor pressure valve switch pump control manifold parts 1 pc assembly oem motor capacitor craftsman 15632 3 gal 1 0 hp oil lubr air compressor 3 7 10g 39 99. Observe the compressor s pressure gauge while it is running and take note of the pressure reading when it stops running.