Ingersol Rand--model IR5E6VA/12432 - slow to build pressure

by Ted
(Indiana)

My compressor is slow to build pressure and when it does get close to the shutoff pressure it starts slowing down to the point of stopping. Then I can't even turn the pulley by hand


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Bill says...

Ted, the compressor slows or lugs because the compressor motor can no longer overcome the load it is experiencing.

If your IR compressor is newer, and hasn't been abused, it may not be a motor or capacitor issue. If older, it could be that the motor or run capacitor is failing.

More likely though, and in the order I would check, would be the tank check valve, then the pressure valve inside the pump. While you have the pump open, check both the intake and pressure valves, and you might as well re & re the gaskets too, because in time they will fail.

Make sure you dump all air and shut down the compressor before doing any work on it, and also, have a look at the new Troubleshooting section from the site map page for more info.

Cheers,

Bill



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Un-loader vavle need to be changed - need to buy parts

by Francis Chika
(Eket,Akwa Ibom,Nigeria)



The Un-Loader Valve for our Ingesoll-Rand Air Compressor Model 750 is entirely bad and need replacement. We need to buy a new one. Could you please direct us.

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Bill says...

Francis, I have no idea where you would buy parts for your IR compressor in Nigeria, sorry.

No, I don't sell parts from my website, though some of my advertisers do.

I am happy to post this for you in the hope that a compressor parts supplier in Nigeria will read this an respond.

Cheers,

Bill



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My IR upright compressor was on its side for 6 days.

by Sam
(Leon, Gto., Mx.)

Hey All,
My IR 5hp upright air compressor was on its side for 6 days....what do I need to do before I start it up for the first time?
Thank you, Sam

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Bill says....

Well Sam, obviously stand it up! :-)

Is it oil lubed? If so, then oil from the sump has permeated all parts of the pump, and if that oil was carrying crud from the sump, some of that is now residing on your pump components.

Short of disassembling the pump and cleaning it, there isn't much to do, but hold your breath, plug it in, and fire it up.

Over the long hall you may end up with a shortened compressor pump life, or over the short term, if there was enough crud, it might damage the pump sooner.

So, if it were mine, I'd change the oil, open the tank drain to get any residual water out, close the tank drain, and give it a go.

After you get a tank full of pressure, manually operate the PRV a few times to make sure it is freed up.

Cheers,

Bill

Comments for My IR upright compressor was on its side for 6 days.

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Dec 08, 2011
New Compressor
by: Sam

Thanks Bill. Oh....it was a new compressor so no crud. It is an oiled pump but really only a little oil leaked out into the floor board and I checked the oil level after I stood it up (ha ha Bill) and it had just enough to get a drop on my finger. The compressor came with a quart of oil so I assume they only put very little inside the pump. Do you still think I will have problems??

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Probably not, Sam. Do check the oil level before you try to run it, and after you upright it, leave it for a few hours to allow the oil that is in it to flow down to where it is supposed to me. Still, good luck.


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INGERSOLL-RAND 2-STAGE RECIPROCATING COMPRESSOR - BREAKER TRIPPING

by JIM
(ASTON,P.A)

OWN A INGERSOLL-RAND 2-STAGE RECIPROCATING COMPRESSOR. MODEL 242. THERE IS NO UN-LOADER VALVE EGUIPPED.AFTER COMPRESSOR REACHES ITS SET POINT AND SHUTS OFF, IS IT NORMAL FOR IT TO FEEL LIKE IT IS FIGHTING A HEAD PRESSURE WHEN TURNED OVER BY HAND?

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Bill says....

Jim, far as I know, all reciprocating piston compressors unload when the cut out set point is reached and the air compressor stops. I suspect that there is an unloader there somewhere.

If the compressed air over the pistons is not dumped, then your motor will likely pull too many amps when trying to start, and that will pop breakers.

With the tank empty and the power off, pull the line from the second cylinder to the tank and see if that makes a difference.

Cheers,

Bill

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Ingersoll SS-05 air compressor will not start up.

by Jack
(Commerce, CA)

I have a Ingersoll SS-05 air compressor.
It will not startup and I have checked all the electrical fuses. There are no trip fuses.
Please help.

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Bill says...

Jack, since IR doesn't show the model now, I'm guessing that the Ingersoll Rand SS-05 is a single stage, 5 HP compressor?

If you have checked the power supply to the compressor pressure switch, have you checked to see if power is actually getting past the switch to the motor starter?

You want to be real careful messing with 220 Volts.

What I would do first is to dump all the air from the tank to make sure that the pressure switch had tripped to ON. Then I would multimeter the power from the pressure switch to the motor circuit. If you don't have power flowing, and the pressure switch has tripped to ON, then it is possible the switch is pooched.

If power is flowing to the motor, then you've possibly got a dead start capacitor.

Post a comment here to let us know what you found, will you?

Cheers,

Bill

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IR 125 Gyro Flo with a G-193 Continental.- about the engine instead of the compressor

by Richard H
(Dixon, Illinois USA)

Hi, This question is about the engine instead of the compressor. My exhaust/intake manifold is broken. Any idea where I can buy one? I have checked many web sites and the only one I found would cost $600.00. That is more than I want to spend. Does the G-193 engine have farm tractor applications. Many new Chinese manifolds that are for older farm tractors look real close to the one I have. Thank you Richard H

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Noise and not building preasure very fast

by George
(Michigan)

I have an Ingersoll Rand SS5 compressor in my spray foam truck.

Today when the pressure started to approach 125#, it started to make this arching sound, that compressor head was 300 deg+ .

There is oil in the unit, the unit builds pressure but very slow.

This unit was bought April of 2010 but it is used every day, and its runs a lot, it has been maintained.

Do you have any idea what might be the problem?
Please email me back
George
george@insulationplusllc.com

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Bill says...

George, the purpose of these pages is to bring information to all readers, so all questions are answered, or attempted to be answered, in the various forums. I can't provide one-on-one service from my desk, sorry.

The change in noise from the compressor suggests to me a failed internal gasket, or that the intake or high pressure valves are failing.

You say the temperature of the pump head was 300+ degrees. Do you know the normal head temperature? Trying to force air out of the pump through a failing high pressure valve could be the reason, if the 300+ degrees is a lot hotter than normal.

Cheers,

Bill


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ingersoll rand

by azikin
(Pangkep, South Suawesi, Indonesia)

Dear Mr Bill..
compressor ingersol rand 160 kW used to packer Haver & Boecker as pneumatic system. My air compressor is ok but it's dryer not ok because the motor of dryer always overload, although the filter was cleaned. My questione :
1. What happens to my air dryer ??
2. is there any effect if the "loading and unloading" compressor is quite high, about 10 seconds ??

please your suggestion

Azikin
PT. Semen Tonasa, Pangkep Sulawesi Selatan
Indonesia

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Bill says...

Azikin, I don't have enough information about your air dryer based on your post to even try to guess.

What type of dryer is it please?

Cheers,

Bill

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ingersoll rand - which lead is positive connection

by Dave
(Canada)

electric motor capacitor with black and red leads.....cap has vent hole when looking at the bottom....with vent hole at top.....which lead is positive connection?
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Bill says...

Dave, I don't offer electrical advice, though sometimes I do tell folks how I would do such and such if I know how.

In your case, I cannot even guess, as I did not pull the cap. Do you have a capacitor part number that perhaps might help in finding an answer for you?

Cheers,

Bill

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