I bought a new Ridgid R350RHA framing nailer a few months ago and just recently got a chance to use it. I am having trouble getting the 3-1/8" nails to drive all the way in (particularly when I toe nail). I am nailing standard 2x4 pine studs.
I am using the twin steel tank Ridgid compressor and I have set the pressure to 120 psi. The rubber air hose is 3/8" 50' long. I am using a plastic 1/4" coil hose at the end (to give me more flexibility). I have set the adjustment on the nailer for deepest penetration and I removed the rubber no-mar pad on the end of the nailer. Even with all this, the nail still protudes about 1/2 inch when I toenail. When nailing a flat 2x4 to another (to make a TEE) it seems to work OK.
I have read thru the owner's manual, and the only thing I can find that I might be doing wrong is the 1/4" plastic coil hose at the end of the 3/8" rubber hose.