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Advice AirArms S510 SL K trigger modification

Discussion in 'Anything Airgun Related' started by PhoenixElite, Dec 30, 2013.

  1. PhoenixElite

    PhoenixElite Engaging Member

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    Gday all,
    I love my rifle, but the only thing I want to change is the trigger... there is to much play in it before engaging, and I really like the look of the setback triggers... can anyone give me advice on how to change the existing one (if possible) or where I can get a setback one/level of difficulty in installing it?
    Thankyou! 20130827_195600.jpg
     
  2. PhoenixElite

    PhoenixElite Engaging Member

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    surely someone has any advice?
     
  3. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Several things. Firstly; the trigger is a two-stage item - so should (if correctly setup) have a section of sprung free-travel (first stage) before reaching a definite stop and breaking cleanly and crisply with added pressure (second stage).

    It sounds like the "play" before "engagement" is just the first stage preceding the second. You can get rid of this through adjustment, but this is not advisable since it reduces trigger control and sear engagement (potentially making the rifle unsafe).

    A setback trigger blade differs only in it's geometry and won't affect the function of the trigger. It serves to look nicer and reduce the reach to the trigger.

    Rowan do a nice brass setback unit, of which I own a couple. On a thumbhole-stocked rifle it feels spot on; though the reach is a bit short on a sporter-stocked gun for my tastes tbh.

    HTH - and leave the fugging bees & butterflies alone in future please ;)
     
  4. PhoenixElite

    PhoenixElite Engaging Member

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    ah thanks for the reply! I understand about the first stage, is it possible to reduce it maybe while still being safe? but also the s510 has side to side flex in the trigger really loose, supposedly they all have it, to make it makes it feel cheap and nasty :( I love the lok of the setback, do rowan do anything other than brass? brushed alloy or something? and is it easy to change is the big question!
     
  5. Falcon User

    Falcon User Engaging Member

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    http://www.pyramydair.com/site/manuals/air-arms-s500-sidelever-rifle-manual.pdf

    Air Arms S500 manual, it has a bit about the trigger adjustment in there.
    Cloverleaf is right, a too large adjustment can result in a unsafe trigger, but there is quite a bit to be gained on a stock trigger before the trigger becomes unsafe.
    The screw you want to adjust is B, that is the most forward one of the 2 setscrews in the actual trigger blade.
    Give it a quarter turn clockwise and try how it feels.

    After setting the trigger just cock it, and WITHOUT, i repeat WITHOUT a pellet inserted close the bolt.
    Then give the stock a couple of hard blows with your open hand.

    If it does go of then back the adjustments back a bit, if it does not go off you can cock it again, and while holding the cocking lever backwards use the trigger and guide the cocking handle forwards
    (That way you can decock the rifle without having to dryfire it)
     
  6. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Cool - yes, you can certainly reduce the first stage travel; you ideally want to leave some though. Perhaps I misinterpreted the "play" mentioned in your first post - the the 400/500 series guns can indeed suffer from some play / side float in the trigger blades. Usually the Rowan blades are a much better fit in this respect so you lose a lot of the movement when fitting one.

    As far as I know the Rowan items are only available in Brass, however they're usually very accommodating so it might be worth talking to them about alternative materials and finishes.

    They're easy to fit (stock off, trigger assy side plate off, swap blades, reassemble) however knowledge of how to adjust the trigger helps in order to get it setup properly once fitted ;)
     
  7. PhoenixElite

    PhoenixElite Engaging Member

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    thanks guys! just what i was looking for!!
     
  8. Falcon User

    Falcon User Engaging Member

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    Location:
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    Also the side to side movement can be fixed by using a hole punch and making little shims from "latoenkoper" as we call it in the Netherlands.

    50002930.jpg

    I believe the English name is tooling foil.
    This is a brass foil slightly thicker then aluminium kitchen foil.
    The thickness of the material ranges from 0.05 of a mm to 1 mm.
    Maybe you could use the material from a fizzy drinks can, this is usually quite thin, and could be thin enough.

    Weihrauch uses a similar material for their break barrel shims, of which I have a picture.
    HWShims.jpg
    Of course yours would be much smaller, about 2mm ID and 4mm OD.

    I've made some of these for a BSA Ultra which had enough side to side play for the trigger to stick out of the trigger guard.
    That made it much better, but selling it on for a FN12 was the best solution.
     
    Last edited: Jan 9, 2014

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