jflyte

UPDATE: I received my tool back from the Metabo-HPT service center and the nail gun is working properly again, sinking nails perfectly. Apparently it was a "X-Ring seal/gasket" repair that fixed the issue. Also, they did not charge me for shipping or for the repair.

Same thing is happening to mine. Not sinking nails much more than halfway (using 3'' nails), and a clicking noise which follows. Sent in to hitachi for repair, received it back a few weeks later and there was no difference, same problem occurred. They claimed that they "recharged air cylinder" and "adjusted nail depth". I believe they did those things, but unfortunately it did not solve my problem. I made the (terrible) judgment call not to get a warranty when I purchased this tool, so I am in a pickle not knowing how to have this tool repaired. At this point I would gladly pay a repair fee if I new the tool could be fixed.