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Reg flow adjustment

Discussion in 'Regulators' started by Raphus, Apr 25, 2021.

  1. Ucarkus

    Ucarkus Contributor

    # of Dives: 1,000 - 2,499
    Location: Berlin, Germany
    195
    94
    What are you going to do if your reg is unbalanced piston like very common mk2? There is no IP adjustment, it is just the tension of the spring. What I am trying to say is, it might have worked what you did but it is not the right way.
     
  2. jakehbk

    jakehbk Contributor

    # of Dives: 1,000 - 2,499
    Location: California
    75
    43
    Get a gauge and check the IP if you want. Fresh from service it's probably fine.

    Did you let them know that you were going to be doing very cold diving? There's a few adjustments made for things like ice diving if that's what you were planning on doing.

    And lastly to the original point of the post. The adjustment from the hose side of the G260 is for lever height. The adjustment from the opposite side is for cracking effort. Don't lower the lever too much or you'll affect the performance of the reg, especially at depth
     
    Cdncoldwater likes this.
  3. Raphus

    Raphus Assistant Instructor

    # of Dives: 100 - 199
    Location: Germany
    373
    291
    OK wait that's new to me.
    What exactly is the lever hight? So in my case I should turn the cracking pressure adjustment knob, right?
     
  4. Sevenrider860

    Sevenrider860 ScubaBoard Sponsor ScubaBoard Sponsor ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Newnan, GA
    791
    425
    I have owned over 8 XTX regulators and sell/service a number of regulators each year. None of the XTX Series second stage regulators should free flow slightly when the adjusting screw is all the way out when received new. Following the XTX Service Technical Maintenance Manual for the adjustment and testing for factory specification, the XTX Series second stages should not be free flowing slightly when the adjusting screw is all the way out and the purge button is not depressed. In fact, there is a specific note that states the second stage "SHOULD NOT LEAK AIR".

    I am aware a number of experienced divers like a slight free flow when the adjusting screw is all the way out, but it is not how Apeks ships the regulators. Specifications are below. The regulator should also free flow when the purge button is tapped when the venturi lever is set to the “+” position

    upload_2021-4-26_15-50-32.jpeg
     
  5. lexvil

    lexvil Contributor

    # of Dives: 1,000 - 2,499
    Location: jamestown, ca.
    4,349
    4,231
    If you can stop the leak with the adjustment know that you can move onto adjusting the micro adjuster inside the knob.
     
  6. Centrals

    Centrals Barangay Pasaway

    # of Dives:
    Location: Hong Kong
    9,581
    3,495
    Thank you for the up-date.
    I was talking on ATX200(2002 manual).
    Now I know.
     
  7. Centrals

    Centrals Barangay Pasaway

    # of Dives:
    Location: Hong Kong
    9,581
    3,495
    Look it up on line.
    If you need to turn the knob more than 1 complete turn to stop the free flow then you might need to adjust the lever height.
    But you just have the reg serviced so take it back to the shop instead of messing round with it particularly on lever height. You will have plenty of opportunities in the future.
    An IP gauge should be in your next shopping list.
     
  8. jakehbk

    jakehbk Contributor

    # of Dives: 1,000 - 2,499
    Location: California
    75
    43
    No disrespect. If you don't know about lever height in regards to your 2nd stage, don't crack that sucker open. Take the regs back to your shop and ask that they adjust them.

    Then if you're still interested in working on your regs buy the book Regulator Savvy and give it a good and thorough read.
     
  9. Ucarkus

    Ucarkus Contributor

    # of Dives: 1,000 - 2,499
    Location: Berlin, Germany
    195
    94
    Actual adjustment is made onto the lever, that is why you need a special tool. Cracking pressure is the spring tension on the lever. Tighter, lever will raise, lower, it will get floppy. The tool will be attached between your LP hose and the regulator, you can turn an orifice right or left while attached to the tool and being connected to the tank at the same time. When I need to do a quick adjustment, I do not even use the tool, I just remove the second stage and turn the adjustment orifice to the desired direction, attach the second stage back to the system and test again until I get it right.
    Just quick search and instructions are here if you already haven't found yet: http://www.angelofarina.it/Public/Scubapro/G260-Service-Manual.pdf
    This is the tool in question.
     
    Raphus likes this.
  10. Centrals

    Centrals Barangay Pasaway

    # of Dives:
    Location: Hong Kong
    9,581
    3,495
    The manual is too brief for the inexperienced.
    A much more detail step by step description with photo is recommended.
     

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