Question about Chicago Pneumatic QRS15.0HPD-3 QRS 15 HP/3-Phase Rotary Screw Air Compressor with Dryer QRS15 HPD

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CHICAGO PNEUMATIC QRS15 seems to be running hot and oil is foaming. Comressor runs for 5 minutes and shuts down.

Posted by Anonymous on


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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SOURCE: I just hooked up a

Hi, my name is John. Welcome to FixYa. Make sure you are correct in the wiring of that, double check that you are right. Thanks for choosing FixYa....John

Posted on Nov 23, 2010

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SOURCE: manual for chicago pneumatic air compressor

go right to their web site and you can download free in pdf form any manual from user manuals,parts list,etc.

Posted on Feb 26, 2011

  • 3740 Answers

SOURCE: What grade oil do I

Hi and welcome to FixYa, I am Kelly.

Compressor grade oils are basically SAE30 W oil. Read this:

Rol-Air OILCOMP30W34C Air Compressor Pump Oil - 30W Quart features ,
Specially engineered and tested to match the requirements of Rol-Air air
compressors , Provides superior rust and corrosion protection.

I.e SAE 30W oil / the same thing you would use in an older lawn mower engine or generator.

What they don't tell you is because they have re-labeled the 30W oil to OILCOMP30W they can charge you big time for SAE 30W oil. The only difference is the label.

Thanks for choosing FixYa,

Posted on Sep 22, 2011

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1 Answer

Changing pressure switch on qrs15

You should be able to adjust the pressure switch inside. There should be a screw that you can turn in and out to adjust the pressure. By turning the screw out, it should lower the pressure.

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Air compressor will not start.

When you are texturing walls you need a texture machine, they work very differently from an air compressor. An air compressor, especially one as small as the Central Pneumatic 40400 cannot supply the constant flow of air required by texture guns. If your compressor was running long enough to get hot enough to smell it then stopped working some of the possibilities are:
- Popped a circuit breaker, either the house breaker for the outlet you were using or the breaker on the compressor motor. This usually occurs because the compressor is being run on a too small guage or too long extension cord or run constantly for an extended period.
- Motor got overheated and seized up or shorted out. This could be as simple as a bearing seizing or as bad as the coils in the arnature shorted out.
- Pump may have seized up. Even if the sight glass shows the crankcase is full, the condition of the oil and its ability to lubricate are greatly affected if it is overheated.

Mar 13, 2012 | Chicago Pneumatic Air Tools & Compressors

1 Answer

I have a 2340 2 stage. the tank gets warm when running.also the oil seems to be foaming. When compresser shuts down it makes a loud squeeking sound. Thank you.

First, what type oil are you using. It should be a non detergent, hd 30 weight oil. Also it would be best to use an oil made for air compressors. Synthetic is best but also more expensive. If the oil looks milky it had water in it from condensation forming inside the crankcase. The tank will get warm and even hot depending on the load the compressor in under. The air exiting the HP side is probably in excess of 200 degrees F. Hope this takes care of your questions.

May 15, 2011 | Ingersoll Rand - Rand Type - 30...

1 Answer

I have an old Chicago Pneumatic 3/8 air ratchet. It appears to be a CP 886 or CP 828? I hooked it up the first time and it started up without the handle being pushed down? Air comes out of the top and...

Hi and welcome to FixYa, I am Kelly. I apologize for the much delayed response but I was helping another customer and your post appeared after I answered that post so I am going to respond now.

You will have to determine the part number of your Air drive.

The seals are dried out and cracked. Also the spring for the trigger is probably broken or the plunger is stuck down.

The CP828 parts can be found here:
The parts you probably need are items 3, 5, 7, 30 and 34. Possibly even item 109. That just repairs the trigger. You still need to repair the motor and head. See item 800 of the link for the repair kit. $33.75 Also note what item numbers above are in the kit.

The repair kits can be also located here: Notice there are several versions of the CP air motors. I send this link because there are three types of ratchet heads and it lists both the CP828 and CP886 repair parts.

You should be able to breathe life back into this thing with just a repair kit.... and possibly a few other trigger parts.

Thanks for choosing FixYa,

Feb 26, 2011 | Chicago Pneumatic Air Tools & Compressors

1 Answer

My chicago pneumatic impact gun keeps running slowly with my finger off the trigger. what can i do to repair it

Put a couple of squirts of w-d 40 in the air opening where you usually put your oil . Keep hitting the trigger until it frees up and then add your oil for normal use. You may need to consider putting in a seperator if you dont have one, especially if your compressor is in a damper work space. If this is a second hand tool it may be from the previous conditions it was exposed to.So give it a little time if that is the case. Also, dont settle for the cheaper pneumatic oil. Quality oil will extend the life of your tool as well as improve the preformance.

Jan 19, 2011 | Chicago Pneumatic 1/2" Air Impact Wrench...

1 Answer

In CPB30 screw compresser lub oil leak in air outlet ! what is sourse of problem and how to solve it?

ussually it comes from being shut off while its running. allways make sure that its quit its cycle and is not running before you shut it down.if your not going to be using it for a while as in going home for the night it is a good idea to turn it off to keep power outages from doing so

Sep 18, 2009 | Chicago Pneumatic Qrs 5 HP/3 Phase Rotary...

1 Answer


get some air tool oil and oil it lol, if that will not speed it back up you may have to take it apart and clean it but the oil should do the trick. Do NOT use wd40, etc. use air tool oil

May 23, 2009 | Chicago Pneumatic 864 6" Heavy Duty Dual...

1 Answer

Chicago Pnuematic air ratchet runs continuously

under the lever you push to make it operate you will se a pin .if this pin is stuck down the ratchet will run all the time.also this could be a bad O ring on this same part,

May 16, 2009 | Chicago Pneumatic 1/2" Heavy Duty Air...

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