Question about Stanley Bostitch Sb-1850bn 18 Gauge Brad Nailer Kit

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Nail will not eject

When I pull the trigger the air releases but the nail does not eject

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 4234 Answers

SOURCE: I have a bostich framing

The o-rings need to be replaced and/or the trigger assembly is defective. Look around at local lumber yards for a "Bostich days" promotion. Often with the purchase of a box of nails, the Bostich rep will "service" up to 2 guns for free. If this is not an option for you because of time, you can purchase the o-ring kit and replace the rings yourself. This is not a difficult repair. Also, be sure to lubricate the guns with pneumatic oil frequently as this will keep the rings lubtricated and prevent them from drying out and leaking.

Hope this helps,

Dan

Posted on Dec 02, 2008

  • 1383 Answers

SOURCE: BOSTITCH 2IN1 VENTS AIR AND WILL NOT FIRE

Your nailer is one of many bostitch nailers that use the TVA6 trigger valve. With time, this triggering valve will wear and act as you describe. Some TVA6 valves have a green plastic pin that wears and becomes shorter. (some have a metal pin) The safety foot and trigger can also cause problems. Try the following to determine the problem:
Remove the roll pin that holds the trigger in place to expose the tva6 valve pin. Remove the nails from the gun and connect airline. Place the nose of the gun against wood or hard rubber and with a very quick motion depress the trigger pin all the way in. If the gun fires then the problem is that the safety and the trigger are not depressing the tva6 pin all the way in. Check for worn parts and replace as necessary.
If gun does not fire remove the head from the gun and check headvalve for worn orings or very tiny scratches where orings contact surfaces. Use a magnify lense to check surfaces if necessary. Use very fine sandpaper to remove scratches (300 grit). Lube orings with silicone paste (looks like vaseline, sold at Lowes in plumbing department it is used to lube faucet orings) and re-assemble. This will make your nailer regain lost power.
Finally, when the tva6 valve fails, air will leak out valve at a high rate, however as the valve wears it will become troublesome if you have a plastic pin. To replace remove trigger then remove roll pins that retain valve. Use a thick glove to catch the valve as you connect to air supply. Use caution because it will come out with force. You may want to reduce pressure to gun when you do this. Good luck with your repair and email if you have question.

Posted on Feb 24, 2009

Editor925
  • 285 Answers

SOURCE: How do you safely remove jammed nail gun?

Not sure exactly what Bostitch framer model you have, but if it is powered by compressed air, as long as you remove the air hose from the nail gun, there should be no risk of the nail gun firing while you remove the jammed nail. There should be a way to access the driver area from the top of the nail gun, even via a latch or a couple screws. Remove the top part of the driver area and that should give you access to the jammed nail, which you can remove. Use long nose pliers or something similar if the nails are really stuck.

Posted on May 31, 2009

rowdy45176
  • 2176 Answers

SOURCE: air blows thru the trigger on both my finish nailer and staple gu

there is an o ring in the trigger valve referred to as a Purple o ring that is probably split. If you can find a air tool center that has them you will save a lot of money versus replacing the trigger valve. Let me know what you are going to do and I will help you with the removal of the valve.

Posted on Oct 06, 2009

  • 1383 Answers

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

Posted on Mar 17, 2011

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1 Answer

OK, second shot at this: About 65% of the time my SFN30 Senco finish nail gun only shoots a nail every OTHER pull of the trigger. All the O-Rings are good and the driver blade is perfectly straight.


There are 4 main causes usually with this tool:
1) Check the seal in the bottom of the cylinder (under the bumper) #BF0070 (#12 on the breakdown) If this seal is missing or worn the piston will not always return fully.
2) The pusher spring #GD0253 in the magazine is not moving the nails forward
2) The driver is bent or the tip is worn / chipped
3) The check valve ring #LB0077 on the cylinder is not sealing properly
Let me know if this helps Senco SFN30 15 Ga Finish Nailer Parts

Feb 26, 2017 | Senco Air Tools & Compressors

1 Answer

I pull the trigger and you get a air sound but no firing of nails . You get air release from top of gun


Could be just a lack of lubrication in the headvalve /orings or the safety foot is not pushing in the trigger pin all the way. Easy to check. Remove the head and pull out the head-valve. Apply plenty of white grease or silicone paste to the orings and the surface where the orings make contact. Install the head and test. If the gun fires then you are done. If the gun does not fire, make sure that the safety foot is depressing the trigger valve all the way in when attempting to nail. Simple test is to remove the trigger exposing the firing pin. With nails removed and air connected, with quick motion depress the firing pin all the way in. If the gun fires make adjustments to safety foot. If the gun still does not fire (with headvalve lubed) replace the firing valve core part # ca0108. Good luck

Mar 05, 2015 | Senco & Frame Pro 601 Framing Nailer

1 Answer

On the trigger of my Bostich Spiral load nail gun AND my Bostick trim nail gun air is leaking profusely from the trigger. Nail guns were not in use for about a year. When I first used them this weekend,...


A nail gun works on compressed air.
When you hook the air hose to the gun it fills a cylinder with air pressure.
When you pull the trigger. the cylinder pressure is released onto a firing pin that shoots the nail.
The air pressure line is also connected to the trigger and therefore the trigger has to be sealed.

When ever using a nail gun, you add a bit of gun oil in the back of the gun (not 3-in-1motor oil, it has to be non-detergent gun oil)

If you haven't used the gun in a while, it is best to oil up the gun and let the oil run down into the gun.
If you use anything but gun oil, the seals will give out.

Your trigger seal has given out. It is probably an 'O' ring. You can access it by taking it apart. Look for the O ring.
Bostich makes re-build kits for the different guns that you can buy on-line.
Back when I was in construction, there were several nail gun shops that sold and serviced nail guns, and sold nails to the contractors. I don't know if that business model is still active or if you have to send the guns to Bostich service center.

Oct 18, 2010 | Garden

2 Answers

Bostitch Nail Gun wont release and shoot nail


I had purchased a bostitch bt200 and am just now trying to use and after loading the nails 18ga 2" brads made by bostitch connecting to a small compresor that had 20 psi I pushed the nailer flush with the board and pulled the trigger and had no nails ejected. Is there something else I needed to do, manual was read.

Sep 04, 2010 | Stanley Air Tools & Compressors

1 Answer

I have a hitachi nv 65 ah that will shoot two nails at time


I hope this doesn't offend you. What I'm suggesting is that you may not be using your nail gun correctly. Some people keep the trigger pulled and bounce the gun onto the wood. This technique works okay, but placement accuracy of the nail suffers. The other technique is to place the gun on the wood and pull the trigger USING TWO HANDS! This is the technique suggested by the manufacturer. The problem with this technique is that if you apply insufficient pressure to the gun (USING ONE HAND) the safety is not engage so you don't shoot a nail. What usually happens - I just witnessed this a couple of weeks ago - is that not enough pressure is applied while pulling the trigger so you push harder and end up bumping the gun which shoots a nail - because you have the trigger pulled, but the nail shot was a surprise so it causes another bump (and is more apt to bounce because you're using just one hand). Because it is a machine and can operate faster than your reflexes - it shoots another nail. This happens before you can lift it off of the wood, or remove your finger from the trigger. That's the reason I keep the trigger pulled and bounce it. I know that after the bounce I've set a nail, and can remove my finger from the trigger. When I need to accurately set a nail I always use two hands, press hard and pull the trigger, and release quickly. Only pull the trigger when you know you're about to set a nail, and are poised above the workpiece.

Dec 09, 2009 | Air Tools & Compressors

1 Answer

Porter cable brad nailer only fires brad on second trigger pull


The dent in the wood is not caused by the air. It's caused by the set that drives the brad. Are you oiling it consistenly? Are the brads the right manufacturer for your porter cable brad nailer? From the information you give it appears that the brads are not advancing correctly or that the air pressure is not sufficient to dislodge the brad from the brad strip on the first strike - it takes an additional strike to break it free. The standard for adding oil is to add ten drops of air tool oil for every hour of operation. That seems like a lot, but the correct amount of oil is a sure way to prevent most air tool problems.

Aug 29, 2009 | Makita AF503 2'' 18 - Gauge Brad Nailer

1 Answer

Pulling the trigger, air is released but nailer is not engaged


Try putting a few drops of light machine oil in the air inlet fitting. If this solves the problem, install an inline air lubricator.

Jun 30, 2009 | Craftsman Nailer Kit, Palm Air Driver

1 Answer

Jammed makita an923 nail gun


On most all nailguns when the trigger is activated air pressure is released from the headvalve causing the headvalve to open and fire the piston. If air leaks through the headvalve orings or through the headgasket port to headvalve, it will not fire. Try applying light grease to headvalve orings and make sure that headgasket is sealing around vent hole. If it fires then replace orings in headvalve for long term repair. Secondary problem is worn safety parts and trigger or trigger pin. If these parts are worn the trigger will not push the trigger valve pin all the way in when you bump fire the gun. With air supply disconnected, apply pressure to safety while depressing the trigger and check thet the pin is moving all the way into the trigger valve. Adjust or replace as necessary. Enjoy

Sep 13, 2008 | Air Tools & Compressors

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