Question about Stanley Bostitch Stick Framing Nailer F28ww

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I have a N80SB stick nail gun that have been leaking air from the trigger valve but was still able to shoot nails. After 3 months of discontinued use, I plugged in the air hose and fire the first nail

I am guilty for not faithfully lubricate the nailer on a regular basis. As mentioned, now the air only come out of the exhaust port on top of the gun and the driver still stuck in down position and not able to retract. I am planning to change out the trigger valve and perhaps replace the o rings with a new o ring kit. Do you think that will or might help with solving my problems. Thanks Hugo

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  • Master
  • 885 Answers

A new trigger valve and o-ring kit will give you a like new gun. Just remember to replace all available o-rings in the kit, lightly grease all of them as you reassemble the gun and use pneumatic oil at the beginning of the day so you won't be doing it again in a couple months.

Posted on Feb 29, 2012

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Posted on Jan 02, 2017

  • 1383 Answers

SOURCE: n80sb-1 stanley bostitch framing gun.

Yes your nailer will drive other sizes of nails. For info and parts go to www.bostitch.com and look for the support tab then select service parts. Here you will find parts list and manual. To remove the tva11 trigger valve remove the retainer pin (the pin is 3mm) for the trigger and remove trigger. Next remove roll pin/pins that retain trigger valve. Use heavy glove to catch trigger valve as you apply air pressure to gun. The valve could pop out with great force so try lowering the pressure to gun. Before installing the new valve, check the opening for sharp edges which will cut orings. Good Luck and email if you have more questions.

Posted on Mar 14, 2009

comax
  • 154 Answers

SOURCE: Leak inside Bostitch N80 Nailer, won't drive nails

If the unit is leaking it most likley need a rebuild kit. Go to a Bostitch service center and ask for an ORK-11 kit. That is all the o-rings needed to do an over haul. Or just have them do it.

Posted on May 28, 2009

comax
  • 154 Answers

SOURCE: will bosch nail guns operate with Paslode brand nails?

The F28WW takes 28Deg nails that are collated with wire, so your nails won't work in that gun. The N80SB is also a 28Deg nailer so your 30 Deg nails won't work in that gun either. Sorry about the bad news but it looks like your going to have to spring for new nails

Posted on Jun 11, 2009

  • 1383 Answers

SOURCE: DeWalt d51822 framing nailer, shoots 2 nails at once 1 in 5 times

I worked at at tool rental center while attending college and learned from the old tool masters about nails and nailers. Rental stores have many different brands of nailers to rent and customers would bring their own nails of all brands. You will notice on the case/box that your nails will /should work on many other brands however the degree or angle of the nails is not always exacly as stated on the box. You should check with protractor the exact angle of your nails and also check the exact angle of the nailer. Use straight edge on travel path of the piston and another on guide rails to check angle of the gun. You will discover that all is not as stated as in a perfect world. If the angle is off slightly, the head of the second nail will get into the path of the driver. This happens mostly with clip head because the nail heads are so close together. The full round head is spaced further apart with less jamming. If angle is off slightly, take a look at other brands of nails with protractor in hand, the angle will be different slightly or choose a slightly thicker nail. Look for the nails to fit with bottom of nail hitting the barrel first. This will move the head of the nail slightly away from the center line. Finally do not release pusher with force as this will jamb nails closer together. Good Luck!?

Posted on Jun 18, 2009

  • 24 Answers

SOURCE: NAILER WONT FIRE NAILS

DO NOT USE WD40 . Is The Nailer fireing? If Not check the micro switch by the fan . Make sure it is pushing on the switch.. Otherwise bend it a little

Posted on Jul 07, 2009

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1 Answer

I have a Bostitch coil framing nailer M#N80CB-1 which was working fine one minute, than after setting it down for a minute it is leaking air under the triggger and will not fire after the first nail.


Air leaking at the trigger is caused by faulty orings in the trigger valve. You could replace the orings in the valve or replace the whole valve (not expensive on ebay, look for generic tva6 valve usually less than $20). Good luck

Nov 30, 2013 | Air Tools & Compressors

1 Answer

I have a Bostitch N80S stick framing nailer that leaks air from the trigger area. I replaced the entire trigger valve with a new single fire trigger to see if the old bump fire trigger was the problem


Remove the nails and take off the trigger to expose the trigger valve (usually part # tva6). Connect air and spray soapy water on the valve to determine if the air is leaking from the center of the valve or around the outer edge between the body and valve. If leaking from the center, could be defective valve or debris under oring. Pop out the valve and examine internal parts for cut oring or defect. If leaking from between body, you could have cut orings installing the valve. Make sure that there are no rough edges in the body of the gun. Bump fire or single fire happens with the trigger type not the valve. Bump fire trigger is usually black metal and single fire trigger is light color plastic. Good luck

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Nail gun will not shoot a nail


Check the safety trip make sure it is pushing back far enough. If it doesn't then it won't do anything. When it was fine just moments earlier.

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1 Answer

Parts for Bostitch N80


Easy test, Remove the nails and remove the trigger retainer pin and trigger to expose the trigger valve (tva6 valve). With air connected and nails removed, quickly depress the trigger firing pin all the way in. Gun should fire (if gun fires, adjust safety foot to make better contact with tva6), if no joy air is leaking past orings in the head valve or head gasket vent hole and/or trigger valve. Remove head and check gasket around vent hold (small hole in the head gasket). If the gasket good remove head valve and examine surface where orings make contact for fine scratches. If scratched or worn, orings are not sealing. To check if orings are leaking, apply lots of white grease to orings in the head valve, replace the head and test fire. If the gun fires, sand contact areas with fine sandpaper and or use oversize orings or wind teflon tape under the external orings. The metal ring or washer that you are wondering about is sometimes used to space up the bumper to control depth of nail. Other nailers use a metal fitting under the bumper to help guide the driver and to seal the lower chamber helping to prevent too much air leaking past the driver. If too much air leaks past the driver, guide, the piston may not return to top. Good luck

Nov 17, 2012 | Air Tools & Compressors

2 Answers

Bostitch N80SB won't reset after firing


Most likely just needs piston oring. Remove nails from the gun and point nose of gun up then down again. If the piston travels up and down in the cylinder, replace the oring. The piston returns to top with air pressure and needs good snug piston oring and good lower bumper (if bumper is cracked or missing pieces ~ replace ). Be sure to lube the orings in the headvalve with silicone paste or white grease. Part # ORK11 oring kit will reseal the gun. Good luck with your repair.

Jun 02, 2012 | Stanley Air Tools & Compressors

1 Answer

I have the 2 1/2 Hitachi for nailing siding. The nail gun had not been used for a couple of years, but now will only drive the nail half way in. Sounds like an air leak when driving the nail. I have...


Remove the nails and air supply. With side door open notice position of driver. Driver should be at top position with tip not visible. If driver is down and it moves within cylinder when you tilt nose up then down again, time to replace orings. If driver is down, it should extend past the nose about 1/4 inch (if driver is broken at the tip the end will look rough and nail will not drive in all the way). If driver extends past the nose more than 1/4 inch then lower bumper may be breaking up /cracked. Easy test for proper function. With nails removed and side door open, connect air to gun and dry fire gun against hard rubber or old coiled air-hose (with air connected and trigger depressed, no air should leak from trigger area, if air leaks when trigger is depressed, look for fault at trigger pin). Feeder should move back then forward in quick motion almost matching speed of driver and driver should not creep down between shots. No air should leak from nose of the gun (push nose against hard rubber and depress trigger and hold in this position, driver should stay down with very little or no air leaking out of nose, when you release trigger, driver will return). If air leaks out of nose while holding in this position, replace lower bumper. If a quantity of air leaks from valve in front of trigger, cylinder orings may need replacing or outer part of cylinder has fine scratches (remove scratches with 400 grit paper). Parts are available at www.toolpartsdirect.com. Good lucki

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1 Answer

Nail gun shoots 2-3 nails, not one. last week 2 of them hit me in the thumb. has been doing this for years. I have put up with it because I did not know what to do about it.


Most nailers work better by bump firing the gun. Less likely to double fire. This is a common problem amoung brands. If you place nailer on work then trigger, you may/will have problems as you describe. There is usually an option of triggers or builtin method of single firing the gun. With single fire trigger, you can place gun on work and fire. The will not reset for next round untill you let go of trigger and lift gun off the work. If your gun is double firing even with bump method, then replace the trigger valve.

Nov 16, 2010 | Nailers 3 12" Pneumatic Air Round Head...

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

1 Answer

N80sb-1 stanley bostitch framing gun.


Yes your nailer will drive other sizes of nails. For info and parts go to www.bostitch.com and look for the support tab then select service parts. Here you will find parts list and manual. To remove the tva11 trigger valve remove the retainer pin (the pin is 3mm) for the trigger and remove trigger. Next remove roll pin/pins that retain trigger valve. Use heavy glove to catch trigger valve as you apply air pressure to gun. The valve could pop out with great force so try lowering the pressure to gun. Before installing the new valve, check the opening for sharp edges which will cut orings. Good Luck and email if you have more questions.

Mar 14, 2009 | Stanley Air Tools & Compressors

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