SOURCE: the driver is not going back up after shooting
The gun needs to be rebuilt. The seals, diaphragms, and valves need replacement. Do a search on the internet for Stanley Nail Gun rebuilding kits. Simple job to do. I did mind last year for under 15 dollars I think. Make sure you replace all the parts including the "O"-rings.
SOURCE: Firing Pin doesn't return
The piston is returned to its firing position by air from the trigger valve after the piston has fired. It relys on the piston sealing against the bumper at the bottom of its stroke, if the bumper was damaged when the driver shattered or it was put in upside down the piston will not return. Also the piston uses air fed into the return chamber from the little holes in the cylinder, if the seal over these holes is damaged the piston may not return. Basically change the bumper and the check seal on the cylinder.
SOURCE: my brand new bostich roofing gun froze up after
Water in gun or wrong oil for cold temp will cause gun to freeze. Make sure that the compressor is not making water form in hoses due to hot air entering cold hose then freezing in gun. Remove cap of nailer and check for water and lube with light oil that remains liquid in your temp range. If the oil is too thick, the firing valve under trigger and headvalve will not budge. Use very short hose so warm air in tank can reach the nailer (heat is produced when air is compressed, however long hose will allow air to cool before entering gun). Stay warm and good holidays
SOURCE: Bostich coil framing nailer will not advance the
Bad or dry feed piston o-ring or a loose feed piston as they are held on by a metric allen screw that will sometimes back out. Use blue Locktite when reinstalling the screw. It could also be the feed spring but they rarely fail on the larger framing nailer.
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