Question about Hitachi Nv45ab2(s) Coil Roofing Nailer

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Fires the first nail and will not fire the second. But makes the hit on the wood, so I know it shoots but it's the nail that will not move into the chamber to go next. Oiled the parts and still the same thing, fires one nail fine and nothin else?

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Either the nail thingy that pushes the nails through is worn, broke, or shot, or you have the wrong nails in there and it is not grabbing them as it should, I think the part is broken on the inside, can't really tell without seeing it, but if it spins free, you need to check it out. Might be able to weld it. Or just replace it. Hope this helps.

Posted on Sep 17, 2010

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1 Answer

Nailer wont advance the nails then it shoots blank


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1 Answer

Hitachi NR83AA shoots two nails on one pull of the trigger?


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1 Answer

My gun has always from day one punches out 2 nail and jams up or not, is there an adjust ment for this problem


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1 Answer

My makita an451 roof nailer keeps shooting 2 nails I've tried 2 different brands of nails


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1 Answer

Sometimes fires 2 nails at once not all the way in and sometimes dosen`t shoot a nail in at all. I only use Bostitch nails


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Mastercraft Brad nailer piston always fires damaging finish but nail gets randomly shot. Thought it was a indent before nail shot to indent nail since it mostley shoots nails after second shot but lately...


The dial on the top of the gun is most likely the depth adjustment for the nails, this should solve the driver damaging the work piece. Make sure the nails are the correct guage for the nailer you have.

Apr 13, 2009 | Tools & Hardware - Others

1 Answer

Nail gun double fires


There is one main part that can be the cause of the problem.

The trigger. Check to see if there is anything out of the ordinary with this. There should be some moving components attached to the trigger itself. Is any part of the trigger touching the button in the body of the gun when safety is not depressed. If the lever on the trigger is pushing on the button, even a little bit, It will allow the gun to fire again and again.

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