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

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Air leak i just bought a used a hitachi framing air nailer.it leaks air constantly from the trigger until i pull the trigger.also i dont even have to use the trigger.just press it aginst a stud and it shoots a nail.please help thats the first time ive used one and im learning it as i go.sorry the model number isnt on the gun or i would give that info.

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Several models of hitachi nailers share the same orings and other parts including the check ball under the trigger pin in your gun. Remove the roll pin holding the trigger to release the trigger pin, (plastic with one oring) then remove the valve with a screwdriver. Replace the vinyl check ball and seal. Parts are available at www.toolpartsdirect.com. This should fix the problem that you are describing, however use caution and check that the safety if properly adjusted. Enjoy

Posted on Dec 07, 2008

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