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is this suppose to be loose

Discussion in 'Anything Airgun Related' started by stejames, Sep 21, 2014.

  1. stejames

    stejames Member

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    hi guys i joined the forum because im very concerned about my gunpower hellcat. its putting out very low power, 6ft/lb. i also noticed yesterday that the value on the air tank is loose. see picture.

    View attachment 103894

    is this suppose to be loose, that it can be turned very easy by hand? i have never owned a gunpower before. its a brand new rifle and brand new air tank, ive owned for about 4 months. i would like some input on this, as i suspect this is why the rifle is down on power. and before anyone asks im not looking at breaking the law and turning this up to very high power. i just want my rifle putting out sub 12ft/lbs as its very low, and the value is very loose.
     
  2. Tinbum

    Tinbum Delusions of adequacy

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    There should be a grubscrew in that hole, if its still there tighten it!
     
  3. stejames

    stejames Member

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    hi Tinbum, thanks for the reply, so its should not be loose? i dont like messing around with compressed air. there is a grubscrew on it yes. i honestly need a gunsmith, i have zero knowledge with this kind of stuff.
     
  4. Tinbum

    Tinbum Delusions of adequacy

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    Push it on, tighten it and chrono again. I'm sure you'll be fine doing that.:)
     
  5. stejames

    stejames Member

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    ok, i have real problems, i tighten the 2 grubscrews on the value, filled the bottle from my drivers bottle to 190 bar, dry fired to make sure it was ok, had a few shots and its still down on power, so i unscrewed the bottle from the rifle and the value has almost come out of the buddy bottle. see picture.

    View attachment 103920
     
  6. Kenbarcon

    Kenbarcon Donator

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    You say its only 4 month old, take it back to the dealer for them to sort it out.
     
  7. dave goodall

    dave goodall Donator

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    U need to unscrew tne 2 grub screws thenscrew the top hat back down till 5mm of thread is showing then tighten the grub screws back up chrono if happy take out tne grub screws and loctight em in any issues regarding power pm me or as ken say let tne shop deal with it dont worry if top hat comes off its sealed still no air will come out atvb dave G
     
  8. stejames

    stejames Member

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    Dave - thanks, i was getting worried that all the air may dump out the bottle, i think it will be fine. i'll have another go tomorrow, need to buy some loctight. obviously without it the value becomes loose.

    kenbarcon - never mind taking it back to dealer, i feel like throwing it on the scrap pile... i bet i havent shot 40 pellets through it yet.
     
  9. dave goodall

    dave goodall Donator

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    Once set right they make decent huntingguns
     
  10. oliver13

    oliver13 Donator

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    That's what is known as the 'Top Hat', when you find the best position for it use a bit of Loctite inside it - & tighten the grub screws. Loose top hats are probably one of the biggest contributors to innaccuracy in Gunpower guns.
    When you unscrew the cylinder, open the bolt first, but be aware it's effectively cocked so keep away from the trigger.

    If you tightened the grub screws & it's still done what you've shown then they weren't tight, maybe the threads have been stripped, the heads rounded or something, they're a bit delicate. I'd get them out & just check it's all OK in there & make sure your allen Key is fitting right, but it's definitely not the sort of place you want to be putting your back into it, treat them gently with firm fingertip pressure - they're a bit small for the job in my opinion.
     

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