s410 cylinder change..

[Replay]

hi all,
this week, if all goes well, i should be finally replacing my small t.d.r cylinder with a larger 410 one,
a couple of questions,is there a better way to empty the cylinder than just firing the rifle until it dies ?
and how easy ect should it all unscrew ?

im just after any pointers that i should be aware of before i "go in",

thanks,

JASON..

I have completely stripped and repaired the aa400, so the aa410 shouldn’t be much different apart from the multi-shot mag.

The only way I can think of is dry firing the gun till empty.
The cylinder should come off very easy, but on new guns they do tend to put a drop of thread lock on the thread to stop movement, so sometimes you may need to heat the back end of the cylinder with a hair dryer to release the thread lock.

The cylinder just unscrews off anti clock wise.
Very easy job to do.



Regards

Replay

[Gwylan]

As Reply says, dry fire it empty. You will need a strap wrench, either bought, or home made. It might be an idea to check the O-rings. The front filler valve block should come off if you put a spanner on the filler itself, but you will need to make up a pin spanner if you want to remove the filler from the block.

Gus

[Barrie_G]

It's easier if you remove the barrel and breech block first, just watch out for the little o-ring below the breech block

[OLD JUD]

Whilst you've got it stripped down, why not replace all seals for peace of mind?

[JJSTEALTH]

thanks guys,

so is it prefarable to dry fire rather than using pellets ?

although saying that, i can see that as it reaches low preasure there may not be much point to grouping

thanks,i should be starting on wednesday evening after a quick visit to the range

JASON..

[Gwylan]

If you're at the range, just shoot out your last fill until the pellets start to drop, then dry fire 'til the gun empties itself when the hammer spring overcomes the valve spring. You will hear a "Hissss...!" then you know the cylinder is empty.
When its all back together again, don't forget to cock it before the first fill.

Gus

[The Reverend]

While you are in there and going to all this trouble, might be worth replacing the valve too. They only cost about £4 and apparently, the new one is supposed to be more efficient, giving a few more shots per fill.