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Air Compressor Problem

12/25/2013 2:55 PM

Dears

can some one gives an idea, why a lot of oil is leaking through air intake filter for Ingersoll-Rand air compressor, Model SSR UP6 15

your assist is highly appreciated

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#1

Re: air compressor problem

12/25/2013 3:15 PM

That's all you have?

No age, usage, maintenance history?

I'd say it's worn out and leaking oil past the rings and intake valve. That's about the only way oil can get from the oil pan to the intake filter.

Have you looked at the manual?

Have you call the service line?

Have you looked for on-line help (except for here, of course)?

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#3
In reply to #1

Re: air compressor problem

12/25/2013 5:14 PM

Dear LYN ,Don't try to taunt for a person you don't know

I think you have to direct the same question for your self.

That's all you have? Lyn.

You don't try to do any effort to know that Ingersoll-Rand model: SSR UP6- 15 is a Screw compressor ,there are no pistons or piston rings. also it's not worn out as you mentioned.

finally I direct my question for engineering forum to ask assistance from the same profession colleagues ,So no room for ridicule

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#5
In reply to #3

Re: air compressor problem

12/25/2013 5:33 PM

Thanks for the meager clarification.

What else can you tell the more helpful members of the forum?

At least babasiga has an answer to his question.

<US>

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#19
In reply to #3

Re: air compressor problem

12/27/2013 8:53 AM

Well welcome anyways.

Glad you posted.

In a small compressor the same was a floating intake valve, by a weakened spring or poor OEM design. A good yielding without breaking the spring, still functioned for many years to the end of the compressor being needed.

(some like the "entertainment" - sometimes like Hollywood telling us how to vote, much is ignorable... because questions are skimmed without applicable understanding. I work on that too as all of us still have to.~ (hah) like water off a duck, well maintained and well intended, keep moving forward: Mr. Nice Poster! What's another Q ?)

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#2

Re: air compressor problem

12/25/2013 3:18 PM

vent the case

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#9
In reply to #2

Re: air compressor problem

12/26/2013 5:55 AM

Thank you for your advise, but Case is automatically vented as compressor stop

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#4

Re: Air Compressor Problem

12/25/2013 5:15 PM

What is it screw or piston compressor.

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#6

Re: Air Compressor Problem

12/25/2013 6:26 PM

Sorry but your original post is next to useless in allowing anybody giving you anything other than pejorative responses.

I will point you towards your service agent for further direct examination of the ailing compressor.

I would also suggest acquiring or hiring another compressor of equal or better performance to take up the challenge you ask of your current one whilst your current compressor is removed and refurbished.

Alternatively you can keep running your compressor with occasional oil top ups and a bucket to catch the blow by oil.

Eventually your compressor with fail catastrophically which will reveal the nature of the original problem and a much larger repair bill..

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#7

Re: Air Compressor Problem

12/25/2013 8:57 PM

Your unit contains four filters, have they all been serviced properly? Lubricant (called coolant by IR) leaking out the inlet filter usually indicates a high back-pressure situation. Since you failed to provide any of the information mentioned by Lyn, we have no idea how old the machine is or how much wear and tear it has seen, it could be as simple as the separator filter being old/clogged.

Here's a copy of the O&M manual for further information. I'm willing to bet that this unit operates outside the normal temperature limits set by IR, but you can call them for more info, the advice here is worth every penny you pay for it.

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#8
In reply to #7

Re: Air Compressor Problem

12/26/2013 5:50 AM

Thank you Ram for your serious attempt to find an answer . the same manual I have before but the same problem is not mentioned in trouble shooting , except drain line for oil separator which is already clear .

oil separator, oil filter and air filter has been changed, oil changed with the same brand but the problem is still exist.

I called I-R service but unfortunately they can't come before one week ,so why I try to find an assistance here

For LYN ,I have no answer for the one who starts his comment with That's all you have?

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#10

Re: Air Compressor Problem

12/26/2013 7:31 AM

This is a belt driven screw compressor. During shut down does the belt turn backwards?

If it does then the blow off or relief valve is the problem. Causing the screw to turn backwards. This will be the cause of the oil at the intake.

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#11
In reply to #10

Re: Air Compressor Problem

12/26/2013 8:35 AM

Thank you Ozzb,Any more suggestion will be appreciated

G.A from me

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#12

Re: Air Compressor Problem

12/26/2013 11:47 AM

Dear Mr.Khairy Aish,

Please check any leak or improper closing of minimum pressure check valve or valve jam. This is valve assembly is just back side of the air filter. This valve is a free moving valve and during loading time it will go inside and open the air inlet line and closes when unloading time. Even you can hear this valve opening and closing sound during loading and unloading time. This valve surface has to mat perfectly with hosing surface to avoid oil leakage.

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#13
In reply to #12

Re: Air Compressor Problem

12/26/2013 2:49 PM

first post from good engineer ,thank you aljawdahmani ,I checked already that valve ,it's working good.

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#15
In reply to #13

Re: Air Compressor Problem

12/26/2013 4:22 PM

I had an I R screw compressor, I think it was ssr11 direct drive. When I had this problem the service engineer always changed the diaphram. I think it was the only problem we ever had with it.

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#20
In reply to #13

Re: Air Compressor Problem

12/28/2013 12:36 PM

Look at the 1/4" copper tube that runs into the middle of the separator unit. There should be a sight glass that will show oil flowing when the compressor is running. This line returns the oil the separator removes from the air back to sump. If it is crack or some how not installed correctly you will see your issue. Also check the separator screen. If there is a high differential pressure showing on compressor gauges, this will also cause your issue. On some of the IR units there is also an oil temp valve. This unit bypasses oil to cooler. I have seen these fail and cause temps to increase and thus separator will not trap oil out of air.

All I can think of at this point to help you

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#14

Re: Air Compressor Problem

12/26/2013 4:20 PM

Check your oil level may be to high.

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#16

Re: Air Compressor Problem

12/26/2013 4:38 PM

Most oil-flooded compressors have oil injected into the screw at the inlet. The oil flow device (a valve controlling back-pressure, or a separate pump) operates to stop oil flow when the compressor is not running. Check the operation and/or adjust the flow device.

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#17
In reply to #16

Re: Air Compressor Problem

12/26/2013 10:59 PM

HI,

You better check the oil seperator filter. if it is open there are chances for oil escapes through filter. every screw compressor is equipped with oil seperator, it seperates oil from air.

thanks

rajendra

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#18

Re: Air Compressor Problem

12/27/2013 7:15 AM

We have an I.R. SSR 75 and it has the same problem. I had it looked at and was told the main shaft seal in the screw is worn and it takes an air end rebuild to fix it. A worn seal causes the oil to leak past and blow back up the intake at shutdown.

Good Luck!

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#21

Re: Air Compressor Problem

01/30/2021 10:49 AM

Mr. Aish,

Your question WAS very detailed and I understood everything you were asking. Not sure why LYN would not at least try to look up the equipment first before being so rude. I too have this issue with our UP6-50PEI-150 screw compressor. I have changed the minimum air check valve, the separators, oil filter, and rebuilt the unloader valve bc it was not actuating at all. The unloader now actuates as it is supposed to, but we still get oil coming out of the intake after shut down. It makes pressure as it is supposed to do and it modulates properly. The air end was replaced last year so it is relatively new with only about 20 hours on it. The compressor is now a back-up unit. Were you able to get a resolution to the problem?

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Users who posted comments:

aljawdahmani (1); babasiga (2); fixitorelse (1); Fredski (1); horace40 (1); JP76 (1); JPool (1); khairy Aish (5); lyn (2); Mtxman01 (1); murphyc1 (1); ozzb (1); RAMConsult (1); recherla (1); Tobugrynbak (1)

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