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Finish Nailer Nailer had not been used for over a year. Upon recent use, the driver would not return to the up position thus miss firing. I took off the cylinder cap and found that there was what appeared to be hardened brittle pieces of grease? that fell out when the cap was removed. So, not knowing what exactly it was packed with, I don't know what to do to repair it. Solutions? Thanks!

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  • tpng Jan 17, 2009

    2 Inch brad nailer misfires up to 3 or 4 times before actually firing a nail. Seems to be ok air pressure (my compressor does not have a tank, so could it be not enough air flow... even at 100 psi doesn't properly fire). Is it as others have suggested that the piston doesn't return to proper home position after firing so a nail can't be indexed into the chamber??


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The particles could be built up dirt and oil or parts of the O-ring seals. This gun should be rebuilt with new seals. Check with your local lumber yards, they often have vendor days where the vendors will be at the yard offering tool overhauls at little to no cost with the purchase of nails. I have 4 guns rebuilt/repaired this way for zero $$. All it cost me was an extra $10 over the cheapest price for nails. I figured that I received $200 worth of gun service for that $10.


Posted on Sep 15, 2008

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