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OBA -> On Board Air Mega Thread & BS

Discussion in 'Technical Chat' started by Gunshot-6A, Oct 20, 2013.

  1. Dec 31, 2017 at 1:13 PM
    #1501
    Doogz

    Doogz Well-Known Member

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    yep..
  2. Dec 31, 2017 at 1:16 PM
    #1502
    silasvirus82

    silasvirus82 Well-Known Member

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    You only have 1 tank versus 2, and no mounting hardware. 6” PVC pipe and fitting are exponentially more than 4”, but it’s super thick and will last a lifetime. I think it’s rated for almost 200 psi.
     
  3. Dec 31, 2017 at 7:11 PM
    #1503
    Salty_Dog

    Salty_Dog Tactical Panda

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    AJT Designs Shifter AJT Designs Battery Hold-Down Amazon Special 40-inch light bar ARB Awning 2500x2500 ARB Twin Compressor w/ Slee Offroad Mounting Bracket Avid Brush Bar Avid Step Bars BFGoodrich All-Terain T/A Tires Black Rock Wheels Series 997 Type 8 Circuit Breaker/Relay Panel Custom TRD Decals Bulletproof Fabricating Raptor Grill Bulletproof Fabricating Cooling Panel Bulletproof Fabricating Tow Hook Exhaust Breather Mod eBay Special 3-Gallon Air Tank EZ Down tailgate damper Flagpole Mounts, Dual Foglight Mod Hella Supertone Horns Iggy Switch Panel Icon Dynamics Stage 3 Suspension Katskin Leather Interior LED Bed Lights LED Interior Lights OEM Audio Plus Reference 500 audio upgrade Plano Cases. 42" roof mounted, X2 Pop-N-Lock Tailgate Handle Prinsu CabRack Prinsu-like Shell Rack Redline Tuning Hood Struts Rigid Industries Ditch Lights Rigid Industries Spotlights Toyota Bed Step Treat-A-Pet Dog Hammock Vixen Air Horns, Four-Trumpet Whole bunch of decals worth about 5HP each.
    Well I discovered something what with the recent cold snap. My ARB compressor won't run. After I've been driving for a while and the engine bay heats up, it will run (sometimes) and often kicks off before the air tank reaches full pressure.
     
  4. Dec 31, 2017 at 7:14 PM
    #1504
    Doogz

    Doogz Well-Known Member

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    yep..
    That sucks. The Aussies probably didn't think to test down to -10! Just kidding. Hopefully it's just some loose wiring and nothing serious.
     
  5. Dec 31, 2017 at 7:17 PM
    #1505
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    Could be froze up. Air has lots of moisture in it, I'd bet there's some in the compressor piston head or a line/valve is froze up.
     
    Drainbung and Salty_Dog like this.
  6. Dec 31, 2017 at 7:18 PM
    #1506
    Salty_Dog

    Salty_Dog Tactical Panda

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    No, I think it might be an overload switch or something built in to the compressor's circuitry.
     
  7. Dec 31, 2017 at 7:21 PM
    #1507
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    The only overload protection is a fuse, nothing resetable like a circuit breaker. There might be an over temp safety switch, I don't recall.
     
    Salty_Dog likes this.
  8. Dec 31, 2017 at 7:26 PM
    #1508
    Salty_Dog

    Salty_Dog Tactical Panda

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    Whatever. Maybe there is ice in the air line and the compressor THINKS it is a full pressure so it shuts off. In any event, I'm keeping the compressor switch turned off while it is cold.

    Switches.jpg
     
    mcharfauros likes this.
  9. Dec 31, 2017 at 7:58 PM
    #1509
    steveo27

    steveo27 Ask me about my weiner

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    The same shit everyone else has.
    A water trap and antifreeze are a VERY good investment for an air system
     
    Salty_Dog likes this.
  10. Jan 1, 2018 at 6:51 PM
    #1510
    silasvirus82

    silasvirus82 Well-Known Member

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    Considering the highs have been in the low 20s and I’m working outdoors, my install is going to wait.

    Someone mentioned antifreeze, where does that go?
     
  11. Jan 4, 2018 at 9:44 PM
    #1511
    yote

    yote Washington State University

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    I'm seeing a lot of guys running tanks in this thread- I have a VAIR 440P. Am I able to JUST have that and run wire from the battery back to wherever I'm mounting it... of course wire a switch in the cab to turn it on/off when I need to air back up?
     
  12. Jan 4, 2018 at 11:18 PM
    #1512
    bagleboy

    bagleboy Well-Known Member

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    Yes. A tank is nice to have if you need to maintain a constant air pressure or need high volume quickly but isn't necessary to air up. Use wire rated for the current, awg 10 for 30A and you probably need a relay so the switch doesn't supply the full current.
     
    yote and Sandman614 like this.
  13. Jan 5, 2018 at 3:00 PM
    #1513
    Traviste

    Traviste Now with more woopow

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    quick question for those of you with ARB dual compressors: was there anything special (wiring or other) what you had to do to get the pressure switch to work? fresh out of the box install the unit works great and fills my tank, much much faster then my old viair, but it will not shut off when it hits 150 psi. i have to cut power using the toggle. If i fill my tank (5gal) above the stated 135 psi mark and turn the toggle off then back on it continues to fill. Power pulled from the battery, grounded to the truck, OTRATTW toggle.
    I'm thinking my pressure switch is defective.
    I've already emailed ARB but just curious if I'm missing something.
     
  14. Jan 5, 2018 at 6:52 PM
    #1514
    bagleboy

    bagleboy Well-Known Member

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    The pressure switch needs to be in the same circuit as the toggle so that both must be "on" for the compressor to run.
     
  15. Jan 5, 2018 at 8:22 PM
    #1515
    steveo27

    steveo27 Ask me about my weiner

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    The same shit everyone else has.
    In the tank.

    https://www.bagriders.com/media/bag...nd_relay_wiring/viair_single_relay_wiring.pdf
    [​IMG]
     
  16. Jan 5, 2018 at 11:37 PM
    #1516
    bagleboy

    bagleboy Well-Known Member

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    Keyed power source is your in cab switch.
     
  17. Jan 6, 2018 at 5:16 AM
    #1517
    Traviste

    Traviste Now with more woopow

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    First off thanks for the replys
    I understand how the pressure switch and relay activate and relate to one another. I was under the impression the dual had the PS on board and was ready to go out the box
     
  18. Jan 6, 2018 at 5:17 AM
    #1518
    zippsub9

    zippsub9 Well-Known Member

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    Shit bolted onto other shit, and junk.
    It is on board and shuts down around the 150 mark. It is built in, not sure what the tolerance is but mine shuts off around 153.
     
  19. Jan 6, 2018 at 5:19 AM
    #1519
    Traviste

    Traviste Now with more woopow

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    Which is the impression I was under and why I'm thinking my PS is bad. Supposed to be 135-150
     
  20. Jan 6, 2018 at 8:34 AM
    #1520
    zippsub9

    zippsub9 Well-Known Member

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    Shit bolted onto other shit, and junk.
    How high have you let it go? I would check it to 160 if you haven’t already. I know there are calibration issues in my tools as well as tolerance built in the PS as well. This is why I recommend up to 160 before declaring it is bad, but I’m sure ARB can answer all your questions.
     

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