Kral arms shadow regulator air leaking

[Rmils123]

Hi., i ordered a pcp kral arms shadow 5.5mm. i opened a box and tried to shoot first shoot, then from pcp air rifles barrel started air come out and continued all the time, when air tank was empty, can't fill, all the air comes out again, i tried with hand pump and scuba tank to fill, nothing .
Help?

 

[BigTinBoat]

Try cocking the gun.

 

[Rmils123]

Try cocking the gun.

Already tried, nothing, i removed bottle with regulator it comes from there .
When you fill the air tank , must be screwed in gun or you can fill just with removed?

 

[BigTinBoat]

I have to say, based on pics of the gun showing a gauge on the bottom of the receiver (to show regulated pressure) that it needs to be on the gun to be filled.
I try dry firing the gun a couple times while you are filling as it seems your firing valve is not sealing.

 

[Rmils123]

I have to say, based on pics of the gun showing a gauge on the bottom of the receiver (to show regulated pressure) that it needs to be on the gun to be filled.
I try dry firing the gun a couple times while you are filling as it seems your firing valve is not sealing.

I tried, but air still comes out of the barrel , firing valve not sealing maybe, what epse can i do?

 

[Rmils123]

I tried, but air still comes out of the barrel , firing valve not sealing maybe, what epse can i do?

else*

 

[Rmils123]

 

[Rmils123]

This is the firing valve from therein picture.

 

[darylm]

Have you contacted the seller or Kral about it?

 

[Rmils123]

Seller don't know really, but with official kral arms no, i will contact with them and let's see the answer.

 

[Rmils123]

When i opened a case first time, there was left 70 bar, after first shoot air started come out, then i fired all air tank empty 0 bar, because i needed to see the seals inside from regulator, there was all ok, i changed all o-rings in reg an grease it with silicone, nothing.

 

[BigTinBoat]

OK the firing valve is the cylinder object in the spring. Take a close look (with a loupe or other magnifier) at the duller/darker grey surface where it meets the tapered part. See if there are any imperfections on the surface. This is the part of it that seals against the valve. Also look inside the receiver and see where that part rests. It should be perfectly smooth also.

 

[Rmils123]

OK the firing valve is the cylinder object in the spring. Take a close look (with a loupe or other magnifier) at the duller/darker grey surface where it meets the tapered part. See if there are any imperfections on the surface. This is the part of it that seals against the valve. Also look inside the receiver and see where that part rests. It should be perfectly smooth also.

Thanks, i found the problem , main firing valve little o-ring was damaged, i change it and filled with air and now is full 250 bar, but regulator pressure is 109, needed 120 for jsb exact heavy's 18,13 grain. I need to adjust reg pressure screw and again all the air must be out, then remove the air tank, inside adjustment.

 

[JohanG]

Thank you for the report. I have the same rifle on order here in South Africa. This thread will help if mine does the same.

 

[azoutdoorsman]

I've got a similar problem in my BSA. Not sure if I want to take it apart or sell it as a project for someone else to tinker with.

 

[Dr. Kralenstein]

I've got a similar problem in my BSA. Not sure if I want to take it apart or sell it as a project for someone else to tinker with.

What BSA are you referring? I may know someone interested lol

 

[azoutdoorsman]

BSA R10 MK2 regulated 177

I can be reached by text 480/ 382/ 5855

Ric

 

[JohanG]

Thanks, i found the problem , main firing valve little o-ring was damaged, i change it and filled with air and now is full 250 bar, but regulator pressure is 109, needed 120 for jsb exact heavy's 18,13 grain. I need to adjust reg pressure screw and again all the air must be out, then remove the air tank, inside adjustment.

I think I have a similar problem, although mine does not leak so fast. It loses about 100 bar over 24 hours. I degassed but the gun but couldn't back the valve nut out and did not want to strip the hex. Did you have to heat that nut to get it out or am I missing something?

 

[Mario achkar]

Can any one help me to adjust my regulator bar with kral shadow i cannot find any video or something on this air rifle

 

[ostie01]

Thanks, i found the problem , main firing valve little o-ring was damaged, i change it and filled with air and now is full 250 bar, but regulator pressure is 109, needed 120 for jsb exact heavy's 18,13 grain. I need to adjust reg pressure screw and again all the air must be out, then remove the air tank, inside adjustment.

Could you explain how to adjust regulator for my shadow, I would really appreciate, Jeff