Ingersoll Rand - Rand Type - 30 Reciprocating Air Compressor - 7.5 Hp, 230 Volt 3 Phase, Model - 2475N7.5 - Answered Questions & Fixed issues

if the heading is correct ,it is a 3 phase unit they will not run if a phase is out check all circuit breakers have an electrician check the motor for a failed phase

On the inlet by the air filter

I've done it the other way around. A European motor on North American system. The voltage slightly varies and they are 50hz instead of our 60hz. It will just run a little faster/slower than it should. If that is not an issue you should be fine. It probably wouldn't hurt to double check with a qualified electrical contractor in your area.

breaker needs to be motor rated to allow for the surge on inital startup

Did you change the 3 phase motor out with a single phase motor? A 3 phase motor cannot be made to run on single phase.

19.8 cubic feet per min

5hp and 3450 rpm are the standards

There could be several reasons why your unit is "overheating". Is the motor tripping the circuit breaker ? Is it the motor or the compressor that is overheating? I need more description of the problem. 3 phase motors do not have capacitors. Is the compressor turning the correct direction? Is the supply voltage correct? Is the power cable the correct size? Do you have the correct type and quantity of oil in the compressor?

Hi Mike, Your problem is very simple please do he following.1. Remove V-belt.2. Loosen the lock nut of the compressor pulley.3. Use a 3 jaw puller to pull-out the pulley.3. Slowly tighten the puller and thats it.Hope i can help in your problem,.

Hi Omran, The capacity of your compressor is 7.46 if the motor drive is 2 hp. 9.79 if the motor drive is 3 hp.Hope i can help you.

Dear Joe Bell, This is Rodciel L. Camacho of VISMIN compressed air care center we are specialize in ingersoll rand air compressor.You mean a overhauling kit?The part number of that is 34319469.Hope i can help you..

pull the head and inspect your intake exhaust valves most likely have a bad valve in the high pressure side

Quincy QT-5, with an 80 gallon tank. I was very patient and found this on CL. If you are flush with cash, do as you wish. If you are looking for the best bang for the buck, CL will produce!X2 on the CL find....Picked up a basically new Ingersoll Rand, T30 220v/2 stage for $500Increase Engine Horse Power.

Is the incoming power connected to the top of the starter in the black box to the left side. next check the pressure switch. the contacts should open at approx. 175 plus or minus 5 psi.you will need to remove the switch cover. then watch the switch and pressure. If the switch does not open at 175 stop the compressor and remove the power. Using a small screwdriver gently insert the screwdriver between each set of contacts. this will un stick the contacts and the pressure switch will probably snap open. I believe the contacts may have welded themselves together. If the contacts are not the problem you have some type of wiring issue.More info will be needed for that.

Hi ethang...
Try to adjust the pressure shut off switch...sometimes they can also get a hole in the diaphram and leak enough air to cause a problem, if you cannot adjust your pressure switch to shut off then you will need to replace your pressure shut off switch it is defective.
Please take time to rate me

head bolts for a 2420 should be torqued to 75 ft lbs.

You can adjust almost all pressure switches

Compressors,Well Pumps,etc

Take off the cover & there should be a screw
to do just what you want to do,lower the cut out
pressure

Good idea, as the compressor will last many years
longer, the less it runs

If air continously comes from the bottom of the pressure switch (bleeder valve) you have a bad tank check valve. The check valve is located on the receiver tank where the copper line from the compressor head goes to the tank. The brass hex between the copper line and the receiver tank is the check valve. Remove it after making sure all pressure has been bleed off the tank. Then you can inspect it. I recommend replacing it unless there is something obviously stuck in it that can be removed with no damage to the check valve. Another way to see if it is the check vale is to loosen the nut on the copper line at the HP head that goes to the receiver tank. If air continously blows from the copper line the check valve is leaking.

ASK Hire Company... Its theirs afterall

Electrical fault