No nail gun professional or not should fire a nail when the trigger is pulled. They all require the safety being depressed and then the trigger engaged. Some are set for bump firing but even so the safety if properly operating still needs to make contact with the work. Has someone bypassed the safety? also when transporting NEVER keep your finger on the trigger.
Professional-grade varieties are automatic, and fire a nail directly upon pulling the trigger. A semi-automatic nail gun is more appropriate for beginners, since it requires a two step process: pull the trigger and then tap the barrel against the wood. This safety feature protects the user from accidentally firing a nail gun and injuring himself or others.
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What brand / model? They can certainly wear, I've had this happen even with a high end nail gun. If used all day, more than one application of oil may be needed to prevent wear. Or invest in a gun mounted self-oiler..
If gun firing but nails not being driven could be one of two basic problems:
1. Nail jammed in magazine not allowing nails to move up.
Empty magazine, does follower move to top of magazine. Push gun against work piece, does fan motor start? Yes - jam in magazine or lock out bar not operating. (this would allow nail un to fire when out of nails)
2. Piston/driver not returning fully after firing, hence driver blade on top of next nail instead of behind it. This could again be caused by a jammed nail or just a nail head. Another case of not returning is the combustion chamber not making a good seal, check O rings on framer (they are steel rings on bradders) it may just need a good clean it is surprising how dirty they can get and if not cleaned a build up of dirt could break a seal. If not been cleaned for a long time worth checking piston rings, worst case scenario dirt builds up around the rings and stick fully in requiring new piston if the rings will not come out.
Nail guns work on the principle that an explosion pushes the piston driver forcing a nail into the work piece, after the explosion a vacuum is created and it is this that 'sucks' the piston/driver back up the cylinder.
Assuming that the gun will not jam with nails removed and the driver returns to top of cylinder when fired without nails. If the driver is bent the nailer will jam without nails. Jamming is usualy caused by bent driver, driver tip worn (not square), or wrong nails. If the driver is not bent and the tip is square, suspect wrong nails. Easy test. Place a strip of nails on outside of rails with the nail heads aligned with top of rail. Move the strip of nails toward the nose if gun. With the heads aligned with the top of the rail, the first nail should align with the path of the driver. If the first nail does not align with the path of the driver and the head is angled slightly away from the path of the driver, the driver may strike the shaft of the first nail pushing the nails back into the rails. If the head of the first nail is forward with the nail shaft angled back away, the nail will flip causing jam. The first nail should align with the path of the driver to prevent jam. It is difficult to find perfectly made nails that align correctly. But certainly check the nails with test mentioned above with every new box for accuracy. You might find that you will need to change brands to get a good fit. Good luck.
This is a bottom fire tool. (NV83A2) You need to hold the trigger down and then as you place the nailer to the wood the safety will depress and it will fire once. This is usually done in one, swift action. If you do this in the opposite way by placing the tool to the wood and then pulling the trigger they often will double fire.
Nailers will double fire or at times, the driver will hit two nails with one stroke. The first issue is caused by sensitive trigger or worn orings and the second problem is caused by faulty nails (too close together in strip ) or the driver is bent slightly allowing the driver to strike the head of the second nail in line. One way to prevent double fire is to use the single trip trigger (usually white plastic). With this trigger, you must lift the gun off the work, release the trigger and press the gun against the work and pull the trigger. If you are using the black bump fire trigger and it double fires, replace the trigger valve. The issue of the driver blade hitting two nails with one stroke can be solved by examining the driver blale for damage. The blade should have a taper on the side that faces the nails. This taper is there so that as the driver hits the first nail the taper will gently push the rest of the nails slightly into the rails out of the way. If generic nails are used, make sure that the nails are designed with the proper spacing and angle. Easy test. With the gun on its side, place a strip of nails on top of the rails with the heads aligned with the angle of the rails. Move the strip of nails so that the first nail is in the path of the driver and the heads are still aligned with the rails. The first nail should align perfectly with the angle and path of the driver. If the head of first nail is in the path of the driver however the shaft of the nail is angled toward the rails, the driver blade may hit two nails. If the point of the first nail is in the path of the driver and the head is angled back toward the rails, you may have miss fire. If the nails are perfectly aligned with the rails and the path of the driver and the driver is hitting the second nail, grind more taper at the bottom inch of the driver. Good luck
There are two issues that people have with nailers that sound the same however are totally different. Firing more that one nail at a time can be taken as; two nails being driven with one fire or the nailer vary rapidly firing a second time almost instantly after firing the first nail and each time only drive one nail. Problem of double fire (either type) is very common with nailers (the gun very quickly fires twice), however two nails at once can only happen if the wrong gauge nails are used in the gun. A 15 g nailer can very easily pass two 18 g nails or, with more difficulty, pass two 16g nails. To help prevent the driver blade from hitting two nail heads at once, most drivers are slightly tapered at the tip so that the driver will hit the first nail and the tapered part will push the other nails back into the rails slightly. Remove the head of the nailer and pull out the driver. Measure or compare the thickness of the driver to the thickness of the nail head. If you are sure that you are using 15 gauge nails, check the driver for taper. The tapered part should face the rails. If not tapered, try carefully grinding a taper keeping the tip cool so that you do not effect the hardness. You could also check for other brands of 15 g nails with slightly more spacing between the nails. There is a big difference in quality among brands of nails. Good luck with your repair
if this is a Bostich/Stanley nail gun that is a normal malfunction the best way to prevent this is to get a few drops of pneumatic oil in the upper portion of the nail tray, or some WD-40 and keep it lubricate after and before every use.
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
Professional-grade varieties are automatic, and fire a nail directly upon pulling the trigger. A semi-automatic nail gun is more appropriate for beginners, since it requires a two step process: pull the trigger and then tap the barrel against the wood. This safety feature protects the user from accidentally firing a nail gun and injuring himself or others.
Professional-grade varieties are automatic, and fire a nail directly upon pulling the trigger. A semi-automatic nail gun is more appropriate for beginners, since it requires a two step process: pull the trigger and then tap the barrel against the wood. This safety feature protects the user from accidentally firing a nail gun and injuring himself or others.
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