My M3 will not hold preasure. I hook it up to my compressor and all of the air comes out the tiny hole behind the safety. Is the second stage reg. the only thing that that vents through that hole?
are you sure it's behind the tiny hole near safety? Can you post a picture and circle which hole it is? I take my impacts apart for maintenance all the time.
That is the Pressure Equalization hole.... If it is leaking from that small hole either the O-rings are dry.. Or they need to be replaced---Reg Rebuild time!
Thanks, I thought so. I just needed some validation before I started ordering parts. I took the reg apart and lubed it up but got no joy. Inspected the o-rings but with my eyes I couldn't see any thing. I think it's about time to call Huma. Y'all been great. Thanks, Jim.