Kral arms shadow regulator air leaking

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.
We're is the reg adjustment screw please
 
The regulator is between the bottle and the rifle. You need to remove the bottle. turn clockwise to reduce or anti clockwise to increase.
Only 1/8 of a turn at a time. Re-assemble, refill and test. See page 26 of the manual.
Spilt it where the yellow arrow points. The reg adjustment screw is inside.
Mine was leaking by the small hole and I had to replace all the o-rings inside the reg.

Kral Shadow regulator position.jpg