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Question PCP help needed.

Discussion in 'Anything Airgun Related' started by Buzz, May 24, 2008.

  1. Buzz

    Buzz Banned

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    Can anyone tell me whether slight over pressurisation of a PCP rifle can cause permanent damage and if so, what that damage would be. I'm not talking about sufficiently over to blow seals or the reservoir, just very slightly over due to say a rifle or bottle gauge that isn't accurate. I'm aware that most have "sweet spots" in the pressure level at which point the power is the highest,I must admit to not knowing exactly why, but I know it happens. I just can't get my head round how slight over pressure could cause permanent damage.

    If it makes a difference, I'm talking about an S410 specifically.
     
  2. jamjon

    jamjon Posting Addict

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    I don't kow much about pcps being a springer fan but i've been making enquiries about getting one and every shop i've spoken to has reccomened i never fill to the full pressure for example if the fill is 200bar then only fill to 190 etc When i've asked why most told me it was because the gun would be sweeter but a couple told me it was for safety i don't know if any of this is true but it came from some of the leading gunshops in the country including ch westons the airgun centre and uttings
     
  3. Buzz

    Buzz Banned

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    Thanks Jamjon...the AA S410 has a fill pressure of 190 bar and in the time I've had the gun, from new, I've never exceeded that either on the gauge on the gun or on the bottle, but Air Arms have said the reason my gun is permanently down on power is due to ME over filling it and have charged £45 for a repair that isn't covered by warranty. Euroguns don't seem inclined to waive the charge despite my assurance I haven't caused the problem and despite the fact that I regularly spend large sums of money on shotgun stuff. Only 3 weeks ago I bought 4000 cartridges, at an average price of £130/1000 and that's an ongoing expense, not just a one off. As you can guess, I'm not very happy with either Euroguns or Air Arms, who I feel are only making me pay for something that should have been done for free !!!
     
    Last edited: May 24, 2008
  4. jamjon

    jamjon Posting Addict

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    Your only option will be to approach your local trading standards office and there normal advice in situations like this is to take the product to an independent engineer or in this case gunsmith and get a written report to prove you were not at fault this has to be done at your own cost however if you are proven to be right the retailer will have to refund the cost of this
     
  5. Buzz

    Buzz Banned

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    The only problem with that is Air Arms have supposedly stripped the gun and replaced parts....hence no evidence. Even if they returned damaged parts there is nothing to say that they came from my gun or that they didn't cause it themselves just to escape from the warranty.
     
  6. jamjon

    jamjon Posting Addict

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    Did you authorise them to replace the parts or did you know there would be a charge before you sent them the gun if not then they have acted unlawfully as they should have told you that parts needed to be replaced and what the cost would be before they went ahead in which case contact your local trading standards and you should have your gun back at no cost very soon
     
  7. andyhawkx3

    andyhawkx3 Major Poster

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    That's true mate, never put more than 200bar in, the recommended is 190bar:up:
     
  8. Buzz

    Buzz Banned

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    That's the thing Andy, I never have gone over the 190, but Looking at the exploded view of the gun I can't see anything that would be affected permanently by slight over pressure anyway. Seals could go, reservoir could split, but what else could be affected ??
     
  9. topcat

    topcat Posting Addict

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    Looks like air arms are having you with your pants down buzz . been there with other manufactures and trading standarts wont help mention air rifle they will run a mile . better of voting with your cash never use air arms again
     
  10. andyhawkx3

    andyhawkx3 Major Poster

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    Yep, trouble is now they are fitting anti-tamper screws, we have to go back to the manufacturers or a gunsmith, to get thing put right, they have got us by the short and cur-lies and say, what they want is wrong with the airgun, and we have no proof, of weather it is true or false.:down::(
     
  11. FXpoacher

    FXpoacher Engaging Member

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    If the valve and seating are the same as an FX, then the only thing that could go is the seal on the valve pin.
    But that is when pumping up to 220bar + and after 500+ shots.
    If you go over 200bar of pressure, then then standard hammer spring wont open the valve long enough to allow the pressure out.

    That's what they are trying to say you did.

    Buzz, sell the crap and get another FX!:D
     
  12. steve410

    steve410 Big Poster

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    Andy I have stripped and rebuilt lots of 410's I can not see what internal parts could possibly be damaged,to damage the air cylinder or seals it would have to be excessively over charged.All pcp's are designed to work under extreme pressures a few bar over the top will do no damage.The first few shots will be low because of the pressure holding the firing valve closed .:mad:
     
  13. andyhawkx3

    andyhawkx3 Major Poster

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    That what l am saying mate, l'd say, it was only a seal wanted changing, l have filled my 410 to 200bar on a regular bases and there has been no ill affect to my, airgun:confused:.....you would really have to whack a lot more air in, to cause that much damage
     
  14. jamjon

    jamjon Posting Addict

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    Search the internet for the sales of goods act and the trading standards laws print them off take them to the shop and demand your gun is returned to you at no cost if they didn't inform you that parts needed to be replaced and what the cost would be before doing the work then they have acted against consumer law as they have to get your permission before going ahead trust me i woeked in a service department for tom tom our bosses made us argue that we were right even though eventually we'd have to back down as the old saying is true the customer is allways right if it cme down to a legal situation unless there is evidence of the customer causing damage which there isn't in your case the small claims court will find in the customers favour.
    You are right be firm state your rights and demand the gun is returned if they refuse threaten them with legal action but make sure ou take all the sales of goods info with you
     
  15. Buzz

    Buzz Banned

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    Well Euroguns have just managed to pull their nuts out of the fire, where as Air Arms nuts are well and truly roasted. Nigel halved the charge and is saying that if Air Arms won't back down Euroguns will stand to half the cost, but if Air Arms do back down he'll refund what I've paid, so although I don't feel 100% happy, at least Euroguns have been prepared to help somewhat already and are prepared to fight my corner.
     
  16. a1gunner

    a1gunner Pro Poster

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    i filled mine up to around 205-210 bar once.

    (yea i managed to over fill with a pump) :D

    didnt seem to do any damage mine still works, i pump it up to 200 bar and it works fine:up:

    still drops the old ferals
     

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