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

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

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 th...