Before setting the cutout pressure point you need to first set the cut in pressure point.
Air pressure switch adjustment.
Steps to adjusting the air compressor pressure switch.
Open a drain to slowly let some air escape.
Setting the cut out pressure.
Pull the release valve located directly below the pressure switch to release pressure and turn the compressor motor on.
When the desired pressure is reached the actuator is depressed and the switch opens.
Although a pressure switch comes in different designs and models there is a uniform approach to adjusting it.
Square d pressure switch.
Low water pressure cutout switch square d m4 pressure switch w low pressure cut off.
Set the cut in pressure first before adjusting the cut out pressure.
Adjusting the differential will only adjust the cut off pressure.
Setting the cut in pressure.
The pressure switch cover is a.
In most cases i find the.
Determine the cut out pressure setting.
To make a compressor pressure switch adjustment you will need to remove the cover from your pressure switch.
Step 4 reinstall the black plastic cover and insert the mounting screw into the hole.
Wait until the compressor starts.
This is the cut in.
An option is to use a normally open switch and drive a relay connected to the air pump using the relay s normally closed output.
Start the compressor and let it run until it reaches the cut out pressure.
Steps in setting the cut in pressure.
Starting from an empty tank.
Watch how the pressure slowly comes down.
Click on the hyperlinks below to see pressure switch videos on the rc worst youtube channel.
How to adjust a pressure switch on an air compressor step 1.
The entire process can be divided into two major sections.
Make note of the pressure when the switch pops up and adjust the bolt as needed to get the desired pressure.
Adjustment will vary depending on t.
Compressor pressure switch adjustment.
Make sure you have unplugged the air compressor and remove the cover off the pressure switch.
This video gives an explanation on how to adjust an air compressor pressure switch as well as basic wiring instructions.
Write down the pressure.
You may still need to try to adjust the setting on a new pressure switch to match the old pressure switch settings.
Turn the differential nut counterclockwise to lower cut off pressure or turn the nut clockwise to raise cut off pressure.
Expose the pressure switch.
Shut off the power to the compressor.