Question about Stanley Bostitch Nail Gun

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I haved a stanley N 12 and it does not leak but at 100 psi it sometimes does not drive the nail all the way, does it need more presure or is it something else?

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Remove head and check oring to piston. The piston/oring should fit snug in cylinder and not drop down under its own weight. Also check that the driver shaft thread is not stripped at piston. Lube with silicone paste lube(availabel at lowes in the plumbing department,used to lube fauced orings ). Parts for N12 are getting scarce. Usually the cylinder seal and the upper bumper will be first to give out. The vinyl that they used caused these parts to self destruct. Good luck

Posted on Sep 18, 2010


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