Question about Campbell Hausfeld 2 1/2" Finish Nailer Kit CHN20199

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When pulling trigger air blows but does not fire

I am using a Cambell Hausfeld finishing air nailer. It fired two times and now is blowing air when I pull the trigger but will not fire when pressed against a board. The nailer is brand new and has very little use. Working on baseboards.

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  • Blake Whitley May 11, 2010

    what is the air pressure? you need to be at 80 -90 psi

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I have the same problem and found the fix. The angled bar from the foot to roughly the trigger is not pushing the trigger release in far enough. If you push the relase in manually, it will fire. Then you can adjust it accordingly.

Posted on Feb 21, 2010

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This problem can happen because of several reasons.
Most likely the driver stuck, and not able to move.

First with the tool disconnected from the air supply check to see if there any nails jammed in the nose piece.

If the driver is stuck down, try to push it up. Will it move?

If there are no problems visible at this point you will have to open the tool up, and see if anything looks out of place.

To examine the inside of the tool, unscrew the 4 bolts on the cap of the tool. Gently remove the cap, it may be spring loaded but once the bolts are loosened, there is no reason to be afraid of the parts springing out. Be careful not to let the parts that are in the head cap fall out. Also take care not to rip the gasket. Keep in mind, the less parts inside that you disturb the better so be careful.

If the piston driver does move. Does it move freely?

Sometimes when a driver hits a very hard knot in the wood, or if a nail is hit. The thin driver may bend. If it is moving but with resistance. Use a thin object to push the driver upward from the nose. It will come out of the head cap end.

Check to see if the driver is straight and square to the piston. If it is bent, you may need to replace it. Sometimes you may be able to bend it back enough to allow the piston driver to move freely.

If this solves your problem. To reassemble:

Replace the driver in the correct position. Replace the gasket if it is loose. If parts came out of the head cap, reposition them into the cap. Replace the head cap on to the tool. Replace the bolts, stagger as you tighten them to depress spring loaded parts evenly.

Hook the tool up to your air supply check for air leaks, and fire the tool.


If the driver does not move: Examine to see what is seizing the piston and reply back.

I hope this works!

Posted on Apr 18, 2009

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