Question about Campbell Hausfeld 26 - Gallon Air Compressor

2 Answers

High/low pressure spring settings

I have a Campbell Hausfeld 20 gallon compressor and I'm trying to find out how to adjust the high and low pressure settings. Which spring is which? Which direction do I turn them to decrease pressure settings?

Posted by on

  • allen_robert Jan 22, 2009

    Thanks, but both springs are the same size. Also, clockwise on mine compresses the springs. Is it the same on yours? Allen.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

On my C-H vertical 60 gal, Isee only one adjusting screw over the large spring for the cut-out pressure. I cannot find any other type of adjustement for cut-in pressure nor than for the differential pressure. So, If I adjust the cut-out pressure say at 115 psi, the cut-in presure is decreased proportionally. That cause to have pressure dropping in the tank at 80 psi for the compressor to start. I would be able to set the cut-in pressure at 95 psi to always have 90 psi at the end of the hose considering the pressure drop of the FRL, fittings and the hose.
Any clue?

Posted on Jul 24, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Campbell Hau... Master
  • 1,378 Answers

Generally, the pressure switch is not adjusted more than once or twice in the life of the compressor since the discharge pressure can be adjusted with pressure regulator. However the life of the compressor can be increased if lower pressure settings are maintained. Your pressure switch was set at the factory to a setting of about 120 - 150. If your cutout pressure is higher than 150 surely lower.
STEP 1: Turn Main Calibration Screw ( center screw with large spring) clockwise to increase pressure and turn counter-clockwise to decrease pressure.

STEP 2: Turn Differential Pressure Screw (small spring) clockwise to decrease cut-in pressure and
turn counter-clockwise to increase cut-in pressure.

Differential Pressure is defined as the difference between cut-out and cut-in pressure. There should be about 7 to 12 psi difference between cut-out and cut-in.
In our shop we rarely adjust more than a couple of turns because these switches are sensitive.
Good Luck and please post again if you have other concerns about your compressor.

Posted on Jan 21, 2009

  • John Trevino Jan 22, 2009

    Yes some switches have two matching screws/springs for main calibration that must be adjusted w/equal turns, this type of switch will have a third adjustment screw for differential and are very hard to set just right. Also if your adjustment screws are the security type it may be better not to adjust it. Please provide the model # of pressure switch and I will check if your switch can/should be adjusted. This number is usually found on the underside of the cover. The model # of the compressor will not help much because I have found that the factory will use many different switches on same series. Also please advise if you are having other problems with the compressor.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a campbell hausefield vs series air comp and when it reaches full air supply and shuts off air leaks (alot) out of the switch i replaced and nothing changes.


There is a check valve on the tank where the line from the pump goes to. It should also have a smaller line running to the pressure switch. If the valve or spring inside is broke or stuck it will leak as you describe. You need Campbell Hausfeld part number CV221502AJ.

Dec 22, 2010 | Campbell Hausfeld 5HP 26 Gallon Single...

2 Answers

I have a model FP209501 Air Compressor 2 Gallon,


2 gallons is small to begin with u need to buy an in line pressure adjuster/regulator their a few bucks and can be attached to the paint gun or line and will keep the pressure at ur adjustment the regulator on the tank sets the tank pressure at 50 so when u us it will let it drop down to about 45 than start up to build the pressure up to 50 than shuts off than repeats it self the inline keeps pressure steady even if tanks are at 200 psi

Jan 18, 2010 | Campbell Hausfeld 04 Gallon Twin Stack...

1 Answer

Wanting to adjust my cut off pressure down...its at 135 now but have in line tank, campbell switch 60 gallon


If I read your problem you would like to decrease your pressure setting on a campbell hausfield compressor, this usually can be done by turning the 3/8" nut (typical) counter clockwise which decreases the spring tension on the pressure plate allowing less pressure to break the points. Hope This Helps Don

Dec 02, 2009 | Campbell Hausfeld Air & Gas Compressors

2 Answers

I have a CH Model WL611200AJ 6.25 HP with 30 gallon tank. When I power up, it tries to run at a very low pressure then kicks off after a few seconds. I can restart over and over and it does the same thing....


Sounds like a motor problem. If you have a capacitor, it could be bad, or a centrifigal switch inside the motor needs adjustment, which is tricky to do.
An "off the wall" problem could be the pressure switch is just set too low, be sure you have a good pressure gauge before adjusting that,( range: 100-125 PSI)

Apr 23, 2009 | Campbell Hausfeld 28 - Gallon Air...

1 Answer

The compressor relief valve keeps popping, compressor runs


What pressure is it popping off at? You might have to adjust the pressure switch to a lower setting.

Apr 01, 2009 | Campbell Hausfeld 5 Peak / 1.7 Running HP,...

1 Answer

Compressor will not stop running


Either your air presure regulator is out of adjustment or is bad? unless you have a major leak?

Jan 03, 2009 | Campbell Hausfeld 26 - Gallon Air...

1 Answer

Hose from compressor to air tank


Campbell hausfeld parts are available at www.chpower.com, however, you can use standard parts like copper tube or rubber pressure hose available at Lowes lumber or True Value Hardware. Check for cause of failure of the airline, could be from vibration due to loose motor mount or faulty check valve at tank causing back pressure. Enjoy

Dec 09, 2008 | Campbell Hausfeld 13 - Gallon Air...

Not finding what you are looking for?
Campbell Hausfeld 26 - Gallon  Air Compressor Logo

1,547 people viewed this question

Ask a Question

Usually answered in minutes!

Top Campbell Hausfeld Air & Gas Compressors Experts

John Trevino

Level 3 Expert

1378 Answers

john h

Level 3 Expert

7116 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Campbell Hausfeld Air and Gas Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...