Hello
Please forgive if this has been done to death but I can't find it (aged and not very computer literate).
My PP700SA fills fine from my dive cylinder if the pistol pressure gauge shows pressure in the pistol is very low (half way down the yellow) but if I try to top it up whilst it is still in the green, it won't take air and I dry fire it until it will accept air. It used to top up, but not terribly reliably, now it won't at all. The gun is over a year old and otherwise fine (subject to me replacing far eastern 'O' rings and fitting a Huma reg.
Yes, I have well over 200 bar in the dive cylinder, so plenty of pressure available. The problem is not the fill probe but seems to be a sticky one way valve into the pistol air receiver.
I had a quick look but short of removing a slot headed screw that faces into the receiver, I can't see anything of the valve.
Does removing the slot head screw allow me to remove and re-lube the fill valve?
No problem is new and I am sure that others have had this problem so some will know of a fix; Pretty please!