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Advice Air Arms S410 tuning/servicing.

Discussion in 'Anything Airgun Related' started by Secondrow, Dec 19, 2013.

  1. Secondrow

    Secondrow Member

    Messages:
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    Location:
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    I’m after some advice from the guys on here – I’m not sure if this is what’s known as tuning or if it comes under servicing, but I guess it doesn’t really matter.
    I’ve bought a S/H S410 (in .22 but I can’t see that making much difference) and I’ve got a chrono so I’m planning on testing it with a few different types of pellets to see what sort of FPS and ft/lbs I’m getting. I’m not sure of the gun’s age, it looks a few years old but reasonably well looked after. So first off, what sort of numbers should I expect if it’s running well?
    Second, if it’s below par (and what would constitute below par?) would I be better sending it off for a tune/service or is it easy enough to do at home? I have a decent set of basic tools, so as long as there aren’t any special tools I’d be good I reckon. What I’m hoping as an end result is to be getting 11 - 12 ft/lbs from the gun with a decent quality pellet. Is there anywhere/anyone folk on here would recommend to do the work and how much am I looking at (realising that this is very open and there are diminishing returns). Or is 11 – 12 asking a bit much!
    I looked for another post about this and couldn’t find one, so apologies if this has been asked before. Al
     
  2. gracole

    gracole Donator

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    Location:
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    try the airarms forum everything you need to know on there by the way whats the serial number this will tell you how old it is is it pre-anti tamper
     
  3. ratman60

    ratman60 Pro Poster

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    hello, it should be doing about 11.5 if that is the case why worry, just keep the internal breech seal and same push rod lubed, the mag internal light lube and pellet lube if you have. i use AA diablo .22 round nose pellets. you can buy a seal kit and on chamberlains web site a diagram. or try AA forum.
     
  4. Titchgamer

    Titchgamer Honorary Member

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    Location:
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    You need to chrono it before you do anything.

    Remember that chrono readings will differ greatly depending on the weight and type of pellet you use.
    Try it with some light, medium and heavy pellets and make sure it does not go over around 11.5 that way you will know you are well within the law.

    Anywhere from 10-11 is quite normal and if its producing powers in that range I would leave it be.
     
  5. mark112

    mark112 Engaging Member

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    Location:
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    +1 for above. Need to chrono it first. Best test power at about 130 bar and set to 11.8 ft.lbs with a heavy pellet like Bisley Magnums. Other pellets will be under that figure then. Dead easy to strip and service yourself if no A/T fitted ... allen keys more or less. If it's running well though I would say just enjoy it!

    Mark
     
  6. Secondrow

    Secondrow Member

    Messages:
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    Location:
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    Good stuff so far guys - thanks. If its getting over 11 ft/lbs or somewhere close I'll be more than happy and wont be touching it. Its if its a few lbs down on this that I'm wondering the best course of action.
    Best I get testing! :)
     
  7. critter

    critter Donator

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    Location:
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    Have a look on the air cylinder tube it should have a date on it some where, may not be exact date that gun was manufactured but should give yoy a better idea. Also if it has the anti tamper fitted it will probably be producing somewhere between 10/11 lbs which is normal for these. Room or outside temperatures will also have an effect on the chrono readings.
     
  8. Truckcab79

    Truckcab79 Busy Member

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    Location:
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    As said before join the AA forum. You'll then get access to the tech section, within which you'll find the stripdown and tuning guide. I bought my 2002 pre AT S400 a couple of years back and took it apart just to see what I'd bought as I had no idea how it had been looked after or whether it had been serviced. If pre AT It's a very easy gun to strip and worth it to give it a good clean up, quick polish of the hammer and rail, removing old grease which will reduce performance, and maybe polish the trigger sears and do the 'crinkle washer' mod. Parts are cheap as chips too. If you're handy and methodical then it's a great way to get to know how it all works.
     

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