I have a ingersoll rand air compressor rand 4000 60 gl vertical 230v model #ra5e6va serial #dc90177-0025 i am wanting to know what cylinder head torqe is for the compressor.the head gasket leaks oil and can see air bubbling in oil

Just so you are aware, we are Fixya dot com, we aren't Ingersoll Rand. It sounds like you think we are?

If this is the model, you can contact them direct.

https://www.google.com/search?q=Ingersoll+Rand+4000+5.0+hp

Here are the parts suppliers and parts diagrams.

https://www.google.com/search?q=Ingersoll+Rand+4000+5.0+hp+parts

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Probably a faulty non return check valve, when the unit reaches pressure air in the delivery pipe is vented down at the pressure switch. If the check valve is passing back this will cause the unit to try to start against a pressure causing it to pull high amps and trip. If there is a constant hiss coming from the pressure switch when the unit stops it will be the non return valve. There should be a short hiss of air when units stops If there is no hiss at all when the unit stops it could be a faulty pressure switch. If it is a quick fix would be to create a small leak on the delivery pipe to vent the line down.

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.

Single phase motor for 230V, connect T4 and T5, to one line. T2, T3, T8 common connected. T1 to other line. Check Rotation, This should be for CCW rotation facing output shaft. Swap T5 and T8 for CW rotation.

ya it can be take the cover off the switch and look for a small screw if you turn in or out you should build more pressure.

that is just a compression fitting. Sometimes just replacing the tubing is enough to get a bit on it. If not you should be able to get another fitting from an indstrial supplier.

contact ingersoll rand they are helpful http://company.ingersollrand.com/Pages/default.aspx

A #10AWG wire can be use and 40Amp breaker can be use also. Your 5hp/230V/1/60hz motor amp is 30A.

call I.R and they will send you a manual for a small charge.