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Do ARB Lockers Need Constant Air Pressure?

Discussion in 'Technical Chat' started by brp, Oct 24, 2011.

  1. Oct 24, 2011 at 12:16 PM
    #1
    brp

    brp [OP] Well-Known Member

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    I am looking at an ARB locker for my 2nd gen rear. I am wondering, in the interest of saving money, time, and complexity, does the locker need a constant air supply/pressure? Would a pulse of air work to lock it? Then release the pressure to unlock it?

    I was thinking maybe a little air tank or CO2 tire inflator could take the place of the compressor. I don't rock crawl, but lots of mud and snow. So, I would not need to lock/unlock it many times.

    Thanks

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  2. Oct 24, 2011 at 12:20 PM
    #2
    Brunes

    Brunes abides.

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    Two problems:
    1) IIRC it takes in the neighborhood ot 90-100 psi to lock it...so a little CO2 inflator isn't going to do the trick.
    2) And that pressure does need to be constant to hold the gear in place....The small tank might work- but you have to pressurize it and keep it pressurized for just in case....Which is what the OBA set ups are for.
     
  3. Oct 24, 2011 at 12:22 PM
    #3
    Dark Knight

    Dark Knight Well-Known Member

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    Get the mini compressor. It about $150 I think
     
  4. Oct 24, 2011 at 12:22 PM
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    SGT Taco

    SGT Taco Disco Disco...

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    it needs the pressure to hold the locker in place, so yes... and once you purge the line it will disengage, but i am sure you can rig up a short line to where ever you want the fill line so that it is somewhat easy to get to and then just put a pressure release valve on it.
     
  5. Oct 24, 2011 at 12:33 PM
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    extremachn1

    extremachn1 I am an asshole, deal with it!

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    Its alot like Scotts (^) blow-up doll. Initially you might get it to work but after repeated use without some way of re-pressurizing it, it just wont work anymore.
     
  6. Oct 24, 2011 at 12:38 PM
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    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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  7. Oct 24, 2011 at 12:44 PM
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    bjmoose

    bjmoose Bullwinkle J. Moose

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    In the interest of time, money, and complexity, this is the easiest solution. The locker comes with a wiring harness that will work " out of the box" with an ARB compressor.

    You can save some money by rigging up something else, but it'll take more time and be more complex to set up.
     
  8. Oct 24, 2011 at 12:52 PM
    #8
    05tacoSPORT

    05tacoSPORT Well-Known Member

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    Just get on board air. $850 locker, what is a few more bux to make it work.
     
  9. Oct 25, 2011 at 1:03 AM
    #9
    STLharry

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    I would get the 2nd ARB compressor though...I mean what's the point of having a compressor on board if it doesn't also inflate the tyres? That's worth the $100 difference IMHO (150 up to 250).
     
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