Many nailers and staplers do not have an adjustment for how deep the nail will drive. Usually, the nail is driven too deep so one must use shims under the nose to space up from the work. However, in your case the nail is not driven deep enough. This is usually caused by a missing tip. To check if your tip is broken off, try dry firing (no nails) the gun into soft wood. The driver should leave a divot indicating that the tip is good. Removing the rubber protector on the safety foot will slightly increase depth as well as filing the thickness of the safety will get you closer to the work. Finally, the safety foot is what activates or trips the gun. It pushes on a button to fire so if the safety is too long, it will activate the firing mech before the nose is all the way down against the work. Good luck
SOURCE: Bostitch nail gun loss of pressure, won't fire nail
Hello. I can help you. The nail gun you have uses 18 gauge brads. I would use only original Bostitch 18 gauge.
The one MM of difference you mention is the reason why you do not have the pressure you did have. Get rid of those 31MM brads and get the 18 gauge. Home Depot carries the Bostitch line. I would go there or to homedepot.com
SOURCE: Porter Cable BN125A won't set nails below surface
You might check the end of the driver...they have been known to chip off.
SOURCE: I have bought a tacwise 140EL nailer/stapler. I
Turn the gun upside down and pull out the black plastic loading thingy, drop the nails in the left hand side of the gun,press against side with finger and slide black loading bit back over top of nails-hey presto!
SOURCE: hi there, bought a nailer today, master nailer
use air tool oil , into the air fitting and place hose back on and
cycle a few times and then.
SOURCE: Bostitch RN46 will not fire nail, only releases
Gun will not fire if air is leaking past orings in head /headvalve or safety /trigger is not pushing trigger pin all the way into trigger valve. Test: Remove trigger to expose trigger valve pin. Remove nails. Place nose of gun against thick rubber mat or coiled rubber hose to absorb blow of driver. Very quickly and deliberately press trigger pin all the way in. If gun fires, safety foo or trigger is not pushing trigger pin all the way in. Make adjustments or replace worn parts. If gun still does not fire, remove head and pull out headvalve. Apply lots of silicone paste lube on the orings and the surface of the head where orings make contact. Reinstall head and test as above. If the gun fires then orings were leaking. Replace orings and sand any scratches on body of cap with very fine sand paper. Parts are at www.toolpartsdirect.com Good luck
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