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I have a N88WWB framing nailer that is very slow to reset after driving a nail in. Then i have to push down on the safety and pull trigger to let air reset then shoot and repeat???

Posted by Anonymous on

6 Suggested Answers

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Posted on Jan 02, 2017

  • 125 Answers

SOURCE: won't feed nail

This happens to my gun too. You probably need to oil the gun once in a while. Here is how you fix it:
Disconnect the gun from the compressor first don't wanna get hurt or anything like that. There is a pin that shoots the nail out well that pin is jammed so what you have to do is push that pin to the original position. using a flat head screwdriver would help you to push that pin back into place. Let me know how that turns out please. I pretty sure that is the problem with your gun. Make sure you lubricate the Nailer once in a while.

Posted on Oct 02, 2008

  • 1383 Answers

SOURCE: air leak

Several models of hitachi nailers share the same orings and other parts including the check ball under the trigger pin in your gun. Remove the roll pin holding the trigger to release the trigger pin, (plastic with one oring) then remove the valve with a screwdriver. Replace the vinyl check ball and seal. Parts are available at www.toolpartsdirect.com. This should fix the problem that you are describing, however use caution and check that the safety if properly adjusted. Enjoy

Posted on Dec 07, 2008

  • 1383 Answers

SOURCE: nail gun will not shoot

Not all 120psi air supplies are the same. Here are some differences. The pressure regulator has a great deal of effect on the performance of the air tool. Regulators are sold by the volume of air (cfm)that they can handle. The more cfm the larger the pipe fittings on the regulator. A 1/4 fitting regulator will restrict the air somewhat compared to a 3/8. Another difference is weather moisture is present in the air. Moisture will temporarily help seal the orings, however too much water in gun will cut the orings. The air hose and fittings will also stifle performance. Long small diameter hose will lower pressure at the gun. This can be measured by installing a guage on a T fitting on the end of the hose and watch the pressure as you fire the gun. Larger fittings and hose ID will improve performance. Finally, your nail gun should work on both compressors. To make your nailgun work at home, (assuming that there are no air leaks) lube the headvalve parts with silicone grease. (sold at lowes in plumbing dept) For best performance, replace the orings in the head valve, examine the plastic parts where the orings contact and look for wear and tiny scratches (use magnify lense). Replace these worn parts along with orings. Replace the head gasket and make sure that the body and the head-cap are not warped. Place sheet of fine sandpaper on flat surface, with cylinder removed rub the body of the gun on paper a few times to check for warp. Do same with cap. Parts are available at www.toolpartsdirect.com. Enjoy

Posted on Dec 14, 2008

  • 1383 Answers

SOURCE: nail would not shoot out

The problem that you describe is caused when the driver is not returning all the way back up to the top of the cylinder not allowing the nails to enter into position . You may have one of several problems including worn piston oring, bent driver, worn check valve, worn lower bumper, or low air pressure. Simple test is to manually push the driver blade back to top using a thin piece of metal that fits into bottom of gun. Be sure to disconnect from air supply when doing this. Good Luck

Posted on Jan 08, 2009

  • 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

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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

I have a Hitachi NR83A3 framing nail gun. It won't drive nails flush. Adjusting the depth screw from one extreme to the other doesn't appear to help or change the driven nail depth. Any ideas?


Easy to check. Remove nails from gun and connect to air supply. Using hard rubber pad or soft wood depress and hold trigger and push nailer safety against pad and hold there. The gun will fire but the driver will stay down until you pull back on the gun and relieve pressure on the safety foot. With driver down examine the tip of the driver. It should look square and should extend about 1/4 inch or more past the nose. If tip is broken replace driver. If lots of air is leaking past the nose during test, also replace the lower bumper. Good luck

Dec 23, 2014 | Hitachi Air Tools & Compressors

1 Answer

Nailer drives nails too deep


n80 coil nailer is a very powerful nailer used for hard wood. If the driver is setting nails too deep, adjust safety foot to the lowest level. Install safety foot no-mar boot to lift the gun even higher. If still too deep, most likely the lower bumper inside the gun is worn-out or cracked. Easy test. Remove nails and connect air supply. With trigger depressed, push and hold the gun against work (I use an old rubber hose tightly coiled up). This will fire the gun but keep the driver down allowing you to examine the tip of the driver. The driver should extend out past the nose less than quarter inch. If the driver is extending too far, most likely bumper is worn out. If a large quantity of air is leaking out the nose of gun during the test, indication that lower bumper is cracked. Good luck.

Apr 06, 2013 | Stanley Bostitch N80CB Coil Framing Nailer

2 Answers

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.

Feb 05, 2013 | Dewalt D51822 Clipped Head 2Inch to...

1 Answer

DeWalt D51822 Framing Nailer: Replaced the trigger valve and air is still coming from the nose of the gun. I would think no air should get past the trigger valve until pressed. What's wrong?


Dewalt framing nailers use some vinyl orings (gold or clear in color) that fail too soon in both the trigger and the cylinder spacer. Air out the nose of gun indicates air is leaking past the cylinder spacer seals (If piston is pushed down with air leak then headvalve seal is leaking (remove nails for this test)). If piston is not pushed down with leak, remove head and pull out the cylinder with cylinder spacer (white plastic). Place the cylinder on workbench with bottom up. Push down on locking ring and remove retainer to release all the other parts. Take picture or take note of parts together and as you pull them off to aid in re-assembly. You will need to replace the two orings between the white cylinder spacer and the cylinder. Order oring kit from dewalt or just purchase one ( # 141 universal oring ) and one metric oring 74.4mm x 3.1mm from hydraulic parts store. If the piston was pushed down with air leak, replace headvalve orings in the head. Good luck with your repair

Jul 05, 2012 | Dewalt Heavy - Duty 31° Clipped Head...

1 Answer

Framing nailer won't fire nails


Usually safety foot is not making full contact to trigger mech. First test trigger valve. Remove nails, remove the trigger to expose the trigger firing pin. Connect air and test fire by pushing in the firing pin with your finger (dry fire onto wood or old coiled rubber hose, use very quick pushing action against trigger pin). If the gun works, replace parts and adjust the safety foot so that the lever below the trigger is pushed all the way up and lever depresses the trigger pin all the way in. Good luck

May 26, 2012 | Air Tools & Compressors

1 Answer

My bostitch n88rh framing nailer will fire when pointed down but wont fire pointed horizontal.


Nailers are made to use in any position so must be something simple to fix. Most likely safety contact foot, to test, remove the nails, remove the trigger to expose the firing button on the trigger valve. Connect air and dry fire onto wood or old coiled rubber hose in various positions. If the gun tests ok then carefully examine safety foot mech. and trigger for loose components missing guide or roll pin. The contact foot must push firmly up on the lever within the trigger thus pushing on the firing button. If the safety foot and trigger are in good conditon and working ok, then problem is within the headvalve and piston orings. To test piston oring, remove airline and nails, point nailer up then down again. The piston should stay in the top position. If the piston moves up /down with movement of gun, replace piston oring. If piston oring ok, remove the head and pull out the headvalve. Apply plenty of silicone paste or white grease to orings on headvalve and reinstall and test. If tests ok, then problem is worn orings in the head /headvalve. You can keep lubing or replace orings. Examine the surface within the head where headvalve orings make contact. If there are many fine scratches, even new orings will not work very well. Try to remove scratches with very fine sandpaper. Good luck

Apr 29, 2012 | Stanley Bostitch N88rh Framing Nailer...

1 Answer

Brand new unit. Used last weekend, no problem. Today, won't shoot nail. Air is released when trigger pulled, but no nail plunged.


Orings /other parts tend to stick when nailer is new. Dewalt uses some vinyl orings that have been causing premature failure. Be sure to add a few drops of oil when used. Too much oil is not good. Wrong oil will cause orings to swell and cause problems such as yours. Your nailer's firing valve can be reset by rapping the nailer against rubber surface such as a thick rugger mat or coiled rubber air hose. Remove airline and nails, being carefull not to damage the head, rap had against rubber mat and retest gun. If it did not reset rap against nose of gun and test. If no joy, you will most likely need to remove head and manually move cylinder up/down and /or check vinyl orings for failure. Before you try to reset the gun, make sure that the safety is pushing the firing pin all the way in. Air removed, look under the trigger as you push down on safey, if it does go all the way in try bump-firing the gun (for test have nails removed). Hold in trigger and quicky /firmly strike gun against rubber pad. Good luck

Nov 14, 2010 | Dewalt D51850 Heavy Duty 20 Degree Full...

1 Answer

Hitachi 83a2 (s) framing nailer jamed, there are 2 nails in cylinder, not sure how to clear the chamber. .


1.Remove the air hose
2.Hold the nose down on a 2x4 on the ground. Make sure the safety guide is full depressed.
3.Squeeze the trigger.

(I realize that sounds redundant, but I have to insure your safety as much as possible. We at FixYa want you to be safe. A Framer Nailer can be dangerous if safety precautions aren't observed)

4.Pull the slide back, and grab around it with your hand, up against the back of the gun. (Magazine)
If you accidentally bump the latch lever, the slide won't spring forward, possibly causing you injury by using this method.

5.Remove any nails. Pull the plastic strip of nails out.

6.The method I use here is to rest the air chamber cover on a table. (Top of the gun) Nose AWAY from your face. I use a small flat tip screwdriver, and see if I can move the Driver back up into the gun. Then see if I can ease one nail out at a time, by moving the nail down out of the nose.

You have two nails trying to drive out at the same time. They need to be separated from each other, so that you can get one nail out at a time.

Most of the time this occurs because of lack of lube. The gun is supposed to have 4 to 5 drops of pneumatic oil, added to the air hose inlet before starting the day out.

(Gun is faced so that the air inlet connection is straight up, oil is added, while the trigger is being squeezed in at the same time)

I don't rely on oilers in the air line. I think they're a bunch of hooey. I've had very few problems, when I have added oil manually at the start of the day.

Sometimes using those 'bargain' nails will cause a problem also. If you find a brand of nails that are cheap, this is the usual result.

Sometimes we framers are too fast on the trigger, and do not have the safety guide fully depressed, before firing the next 'shot'.

If you have further questions please post them.

Oct 10, 2009 | Hitachi NR83A2S Framing Nailer, Full Head,...

1 Answer

When you bump nailer it wont kick out nails


new safeties on nailers have to push set safety than pull trigger no more just hold trigger and bump shoot nails

Oct 06, 2009 | Dewalt Air Tools & Compressors

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