Question about Stanley Bostitch N88rh Framing Nailer Driver Piston 158582
As soon as air is hooked up. even without front safety pressed. I have oiled, tapped, thumped hooked and unhooked air numerous times...no change. Also air continues to leak through head when pressure is low. What can i check at the spring loaded out end?
I Put a new trigger in and the safety on the head of the gun does not have to be pushed up in order to fire a nail in a board. I think when i pput it back together it was not done right. I do not have the instruction book.
Posted on Aug 04, 2010
You either have a piston stop bumper failure or some damaged orings. Look on the schematic and the piston stop bumper is number 11, part #107236. A lot of times the piston stop bumper will disintergrate due to becoming brittle from the compressed air and not having enough lubrication. Look for small plastic balls in the head under the valve. If you see little plastic pieces than that is what remains of the piston stop bumper. You will need to remove the valve from the head cap in order to inspect the bumper. Also inspect all orings. The slightest damage can have big effects. One other thing to look for is damage to the plastic valve that rides on 3 orings. (2 out and 1 in) I don't believe you have valve damage because you say it is firing like a machine gun. This is almost always the piston stop bumper.
Posted on Sep 09, 2009
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Posted on Jan 02, 2017
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