compressor question

[yard_dawg]

i have a ingersoll rand 60 gal.230 volt vert. compressor given to me. it was used for about 5 months in my buddies shop. could not keep up with his air demands. i have had it for over a year now, just got it wired up and plumbed up to air lines. now i seem to have a problem. the selinod where the main electric wires hook the compressor up and it has the pop off value has a problem i think. my compressor kicks off at 100 psi, i know the spec say it is has a working psi of 135. can the selinod be bad. or do i have other issues. thanks

 

[Jbullfrog]

That's probably why it wouldn't keep up. Yes they can go bad, but they are also adjustable. If you aren't familiar with how they work, have someone that is do it for you, as it can be very dangerous.

The pressure switch has a line from the tank and uses a diapram to control when the motor is on. By adjusting the upper and lower limits, you change when it kicks on and off.

If it cycles currently, the regulator is working, but may be out of adjustment.

 

[Rolling_Thunder]

If you pull the cover off of the pressure switch you should some sort of adjuster to set the cut-on and cut-off pressures of the compressor. Im not famaliar with the IR but it should be pretty obvious when you see it! usually like a threaded rod with an adjuster nut on it or a long screw adjustment. With a little adjusting you should be able to adjust both settings!

 

[tatra]

are you going by the gauge that came with the compressor?...............double check to make sure it is accurate with a known accurate gauge.............as stated, adjusting the pressure differential switch can be dangerous and an accurate gauge is crucial.............let us know the cut in and cut out pressures...............and the model of switch you are using...............although tedious to set at times, you can do it yourself................another thing to do and check is to ensure yout safty popoff valve is working...........this should be stamped in to the body of the valve stating the pressure it will release....................good luck.............

 

[goodfellow]

are you going by the gauge that came with the compressor?...............double check to make sure it is accurate with a known accurate gauge.............as stated, adjusting the pressure differential switch can be dangerous and an accurate gauge is crucial.............let us know the cut in and cut out pressures...............and the model of switch you are using...............although tedious to set at times, you can do it yourself................another thing to do and check is to ensure yout safty popoff valve is working...........this should be stamped in to the body of the valve stating the pressure it will release....................good luck.............

+1 --- Just had this problem with a portable unit. Bad gauge -- actual pressure was fine.