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  1. #1
    Silver Member
    Join Date
    Jun 2010
    Posts
    231
    Location
    N. Mississippi
    Tractor
    Ford 1510

    Default Compressor Question

    I have a Campbell Hausfeld 4 hp horizontal 25 gal compressor that I'm wondering if it is running right. Something tells me it isn't but I don't know for sure. I plug it in and the tank fills up, then when it gets to the point at which it's set to turn off it does but air blows out of it until it reaches a predetermined level then it cranks back up again. It cycles like this constantly. I thought that once the tank gets to a certain PSI it would just shut off then once the air is used down to a certain PSI it would turn back on and compress again. Am I wrong in that assumption or should it blow out all the air? I have a single knob which I thought would control how much pressure the tank fills to till it cycles off but turning that doesn't seem to make any difference.

    Thanks,

    Mike
    ___________________________
    1986 Ford 1510
    5' Bushhog (no name version)
    5' Finish Mower
    26 gal Femco 12v trailer sprayer
    2000 52" Great Dane Surfer (18hp Kohler Command)
    2010 John Deere Z920A 54" (26hp Kawasaki)
    ________________________________
    “Being a wealthy redneck has its advantages...”
    Willie Robertson, CEO Duck Commander

    The decisions you make will determine whether you win... or lose.

  2. #2
    Elite Member Mace Canute's Avatar
    Join Date
    Nov 2006
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    4,654
    Location
    Saskatoon, Saskatchewan

    Default Re: Compressor Question

    Fix the air blowing out of it problem...

  3. #3
    Gold Member
    Join Date
    Apr 2008
    Posts
    464

    Default Re: Compressor Question

    The compressor should fill up, stop, let you use the air, then turn back on when it gets below a certain level. If you're saying that air is escaping all the time, that's a problem that needs to be fixed.

    The tank should have a drain valve on the bottom for letting out the water that accumulates. It may be as simple as that being open, letting air out.

    Keith

  4. #4
    Silver Member
    Join Date
    Jun 2010
    Posts
    231
    Location
    N. Mississippi
    Tractor
    Ford 1510

    Default Re: Compressor Question

    No, the air is coming from the check or emergency popoff valve that is up near the controls. Sorry, should have included that. Can that be replaced, is it just a bad seal, bad valve or what?
    ___________________________
    1986 Ford 1510
    5' Bushhog (no name version)
    5' Finish Mower
    26 gal Femco 12v trailer sprayer
    2000 52" Great Dane Surfer (18hp Kohler Command)
    2010 John Deere Z920A 54" (26hp Kawasaki)
    ________________________________
    “Being a wealthy redneck has its advantages...”
    Willie Robertson, CEO Duck Commander

    The decisions you make will determine whether you win... or lose.

  5. #5
    Epic Contributor Bird's Avatar
    Join Date
    Mar 2000
    Posts
    37,774
    Location
    Texas

    Default Re: Compressor Question

    Quote Originally Posted by MikeA57 View Post
    No, the air is coming from the check or emergency popoff valve that is up near the controls. Sorry, should have included that. Can that be replaced, is it just a bad seal, bad valve or what?
    Yes, it can be replaced. The only time I had that happen, I took it apart, and if I remember right, the seal was like a piece of leather and I simply turned it around and put it back together.

    Turning the knob is probably the pressure regulator and it regulates the pressure of the air flowing out of the tank; has nothing to do with the amount of air pressure in the tank or the pressure that cuts off the motor.
    Bird

  6. #6
    Super Star Member Egon's Avatar
    Join Date
    Aug 2001
    Posts
    17,778
    Location
    Nova Scotia, Canada

    Default Re: Compressor Question

    Mine does the same thing on a very sporadic basis. Usually I just work the pin back and forth a bit and maybe comment on the compressor's ancestry a time or two and then all goes well for a time.

    Really should have no complaints on the compressor as it has many many hours running time on it.
    Egon
    50 years behind the times
    Livin in a
    Worn out skin bag filled with rattlin bones

  7. #7
    Veteran Member
    Join Date
    Dec 2007
    Posts
    1,457
    Location
    Eastern Ontario
    Tractor
    Jinma 284(Spirit fel), MF 135 (MF200 fel)

    Default Re: Compressor Question

    Sometimes the popoff valve can be locked open -- as Egon says a twist will usually close it

  8. #8
    Super Member grsthegreat's Avatar
    Join Date
    Jan 2011
    Posts
    6,503
    Location
    north idaho
    Tractor
    dk45se hst cab

    Default Re: Compressor Question

    you havnt stated what the pressure is when the main pressure shut off switch stops the compressor. if its too high, then the pop-off valve will naturally cycle. If it is not too high, then its the pop-off valve. ive seen these at any compressor shop. pretty cheap part
    currently own
    2011 Kioti DK45SE HST CAB tractor/loader, Jimna 6" - 3 point wood chipper, 60" JD Brush Hog, JD 60" Rototiller, 3 point post hole digger with hydraulic assist, 3 point spring tooth rake, Fimco 55 gallon weed sprayer with 12 foot boom, 3 point hydraulic wood splitter (home built)
    Quick Attach 79" loader mount snowblower & rear powerpack
    Quick Attach 84" Snow Blade
    Quick Attach 42" pallet forks

  9. #9
    Veteran Member
    Join Date
    Aug 2007
    Posts
    1,341
    Location
    Mid-Coast Maine

    Default Re: Compressor Question

    I had a CH compressor that did the same thing after owning it for a few years. The shut off switch was not activating soon enough and the tank was going over pressure. I pulled the regulator/switch apart and found the pressure switch was adjustable. The adjustment is under a sealed plug, but it was easy to remove. Adjusted it down a bit and it has been working fine for 2 years.
    Jim

    - '01 Husqvarna W4814- 48" walk behind lawn mower.
    - '04 John Deere Z-Trac 727A- 54" ZTR
    - '13 Kioti DK40 HST - KL401 loader, DK40 72" QA bucket, LK3054 60" QA bucket, toothbar for 60" bucket, dual rear remotes, 7ft 6 way rear blade, 78" ETA Box Blade, Woods BH-90x backhoe, loaded rear tires, Kioti Canopy.

  10. #10
    Super Member
    Join Date
    Feb 2006
    Posts
    8,629
    Location
    VA
    Tractor
    JD2010, Kubota3450,2550, Mahindra 7520 w FEL w Skid Steer QC w/Tilt Tatch, & BH, BX1500

    Default Re: Compressor Question

    Quote Originally Posted by MikeA57 View Post
    No, the air is coming from the check or emergency popoff valve that is up near the controls. Sorry, should have included that. Can that be replaced, is it just a bad seal, bad valve or what?
    If the popoff is operating I dont see why the compressor would turn off. It sounds like an unloader bleed valve problem combined with a malfunction of the check valve that is supposed to keep tank air from coming back to the compressor.
    larry
    This side of 40
    JD2010, Kubota L3450/FEL w SK QC, L2550 w FEL
    Mahindra 7520 [Pinky] /FEL w Skid Steer QC/w Tilt Tatch & BH, BX1500 [Mighty Mouse]
    IH37 Baler, CCM165 Drum Mower, JD Rake
    JD 127 bushog, Flail, SK Tilt Tatch , KK tiller, Rhino rear blade, Post driver, post auger, chipper, pallet fork, Grapple/Loader Buddy, Homemade Splitter/DC Welder

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