Question about Hitachi NR83A2 2" To 3 1/4" Full Head Framer with Depth of Drive

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My nail gun hitachi nr83a2 only fires a nail half way

I just bought a new driver because my old driver broke "note that the new driver i bought was for a NR83A". I believe it has to do with the bumper in the cylinder when i turn the gun upside down it makes a little bumping sound? When i took the gun apart again the bumper looked fine. Is it supposed to stay attached to the driver somehow? or are the drivers for A and the A2 different thank you.

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The blade assemblies for the A and A2 are the same.

the pison bumper should not be attached to the driver, if the bumper is moving around inside the gun i suggest checking to make sure it was properly seated when the gun was reassembled. if it was, i suggest ordering a new bumper.

a cracked bumper will usually cause a broken driver.

Posted on Nov 17, 2008

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