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depressurising air arms s410

Discussion in 'Anything Airgun Related' started by squidger, May 12, 2014.

  1. squidger

    squidger Member

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    Location:
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    Hi Peeps.

    I've decided to replace the charge valve on my s410 with a snap connector cause the current valve is intermittent. I have to play with the connector when charging till it actually accepts air from the bottle. Problem is there is no pin to depress on the charge valve to depressurise the cylinder. It's currently sitting at 160 bar and I don't fancy undoing a thread with 2000 psi behind it. Anybody done this job already and can give me a heads up please.
     
  2. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    The "official" method is to get a spanner on the two flats at the end of the fill valve and gradually unwind it until the seal at its base pops out. Personally if not stripping the gun otherwise I'd prefer to dry fire it until empty.

    Assuming you have the newer type filler, I trust you've got a BEST snap-fit upgrade rather than attempting to use the earlier AA type as the threads / valve housings are different ;)
     
    Last edited: May 12, 2014
  3. GIRLYPANTS

    GIRLYPANTS Banned

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    Id dry fire it till is empty, or have a good old plink untill its empty, why waist air :)
     
  4. stuart2477

    stuart2477 Engaging Member

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    Hello, if you are replacing the valve it won't mater if you damage it, so just push a suitably sized pin punch (or suitable tool) into the hole in the end of the valve and push down on a hard surface to release the presure or tap the end of the punch with a hammer continuously until the air is drained. It is noisy but I'd prefer this way too undoing the valve.
    ATB.
     
  5. RichieRich

    RichieRich Ping!

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    Dry fire until empty, it should get to a certain pressure when the valve will stay open and dump it's contents into the barrel anyway
     
  6. ratman60

    ratman60 Pro Poster

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    hello, have a good old plink or pop off some ratties:rolleyes:
    :up:
     
  7. squidger

    squidger Member

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    Location:
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    I thought about dry firing it but that would take ages at about 60 shots and it's not exactly quiet. The kit I've gone for is advertised as the upgrade kit for the S410.

    View attachment 96089
     
  8. GIRLYPANTS

    GIRLYPANTS Banned

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    60 shots, that would take 5 mins at most to empty out the cylinder :rolleyes:
     
  9. larryking28

    larryking28 Busy Member

    Messages:
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    Location:
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    When I sold mine I just dry fired it till the remainder of the air just dumped out of the barrel.
    Took less than 5 minutes.
     
  10. Geordie

    Geordie Donator

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    Which "old" valve are we talking about? I'm a bit confused:confused::confused::confused: The old bayonet ones with the ball bearing in the end can be emptied by putting a 5p flat in the end cap and it screw it on slowly.

    If it's the older one with no tbar, just dry fire the fooker ffs:p:D If it's loud fire it into your lasses least loved cushion/pillow;)
     
  11. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Trying to explain the situation without complicating it further... :p

    The bits in the image above are only any good for converting the original "Snap connector" (see image below) - the valve housing onto which this screws has a 1/8BSP male thread.

    [​IMG]


    If you have the later valve type (either with or without the "T-bar" on the end) like this:

    [​IMG]


    The valve housing has an M12 female thread, so you'll need these bits for conversion:

    [​IMG]
    Capiche? ;) :p
     
  12. squidger

    squidger Member

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    Location:
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    Spot on Cloverleaf:up:. Got bits today so decided to dry fire to empty. Any way I fired it 30 times and the pressure hardly dropped so decided to gingerly unscrew the valve with rags wrapped around it. Turns out if you unscrew about 3 turns the seal pops out and slowly depressurises it. Result. The new valve fits perfectly and it's much easier to charge now. £20 well spent.
     

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