S410 Classic loss of power

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Davidwd
Posts: 3
Joined: Thu Jan 30, 2020 9:15 pm

S410 Classic loss of power

Thu Jan 30, 2020 9:20 pm

I bought a new s410 classic 14 years ago and it has had very little use, it has not even fired a whole tub of pellets. The power is so low you can actually see the pellet leave the gun and bounce off wood. It used to be fantastic.

The gun has never been serviced, should i replace all the seals in the gun or if i discharge all the air will it reset itself?

Any help or advice would be gratefully received,
Many thanks
David

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Archer50
Posts: 200
Joined: Mon Jun 20, 2016 5:06 pm
Location: Perth

Re: S410 Classic loss of power

Thu Jan 30, 2020 10:40 pm

After 14 years I'd be very surprised if all your seals are still doing their job properly. Personally I wouldn't spend any time fault finding I would simply strip the whole thing, replace all the seals and clean everything, especially the hammer rail. While I was in there I would check the firing valve facing - in fact I'd probably replace the valve anyway.

Sorry if this sounds a bit daunting but, assuming there's no anti-tamper, no more than a couple of hours and about £15, if you replace the firing valve, a fiver if you don't. You could try just a clean up and see how it goes, but I doubt if you'll get away with it.

Good luck.

Alan

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Davidwd
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Joined: Thu Jan 30, 2020 9:15 pm

Re: S410 Classic loss of power

Fri Jan 31, 2020 9:15 am

Thanks Alan, great answer just I will order and replace the seals and firing valve and I will let you know how I got on.
Thanks again.

David

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eboswan
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Location: swansea

Re: S410 Classic loss of power

Fri Jan 31, 2020 11:28 am

You can order everything you need from Julian in out spares section, at a discount price. :D
IS MY SIGNATURE BIGGER THAN RAYS. Cz 452 american .22+sak mod
S200. .177

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Archer50
Posts: 200
Joined: Mon Jun 20, 2016 5:06 pm
Location: Perth

Re: S410 Classic loss of power

Fri Jan 31, 2020 3:52 pm

^^^^^^^
What he said :D

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Davidwd
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Joined: Thu Jan 30, 2020 9:15 pm

Re: S410 Classic loss of power

Fri Jan 31, 2020 5:53 pm

Thank you for all you replies, when I assemble the internal seals should i use a silicone grease or assemble it dry?
Thank you
Dave

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Blackbaronfish
Posts: 3690
Joined: Sun Feb 15, 2015 6:20 pm
Location: Nuneaton

Re: S410 Classic loss of power

Fri Jan 31, 2020 11:20 pm

Use mollycotte 33 grease. If you order your spares from Julian Bond if you ask nicely he will send you some with your order.


BBF
Did I mention that I'm the only one to have attended EVERY meet since we started

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poguemahone
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Joined: Sun Feb 15, 2015 10:36 am
Location: stoke

Re: S410 Classic loss of power

Sat Feb 01, 2020 11:58 am

after 14 years you definitely need to replace the firing valve. they suffer from extrusion ;)
doesnt matter if you havent fired it much, just the fact its under pressure causes this. you'll probably be able to see a slight raised bit, or line, on the black plastic face of the valve, caused by extrusion ;)

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