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I need parts for a 91054 central pneumatic 34 framing nailor

Gasket is cracked and leaking air at the back of the gun

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Posted on Jan 02, 2017

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SOURCE: Need Parts for Central Pneumatic Air Framing Nailer D1CN28/90

I have a Central Pneumatic Frame Nailer the driver will go down but not back up unless you disconnet air supply.

Posted on Sep 14, 2009

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How can you get parts for the Central Pneumatic Framing Nailer #69927?


go google and type in-- manufacturer of central pneumatic framing nailer --
you may be able to leave out the framing word as the company will make more than one unit

Apr 17, 2016 | Air Tools & Compressors

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Need parts for central pneumatic framing nailer model 94000


Unfortunately you will not find parts for Central Pneumatic - the company does not provide replacement parts.
It sounds like you have an exhaust valve that is plugged in the head - my suggestion would be to take it apart, clean it, replace any damaged O-rings with generic ones, and regrease it.

May 27, 2014 | Nailers Air Tools & Compressors

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Nail gun no longer fires. Leaks air around trigger when trigger depressed. It is in single fire mode.


You will have to take the gun apart and change the rubber o-ring gasket for the trigger mechanism..Go to a Home Depot or other contractor outlet to get parts or info...The gasket actually keeps the air from leaking so it will nail.

Oct 24, 2013 | Air Tools & Compressors

1 Answer

I have a magnum air 33degree gun, i removed the head cap to replace blown gasket, when i put it back on the gun will not fire.


Check the alignment of the of the gasket in reference to the small hole on the sealing edge(gasket has four bolt holes and one vent hole). This small hole allows air to vent from the upper part of the head when you depress the trigger casuing the gun to fire. If the gasket seals the hole or if air is leaking past the orings in the head vale the gun will not fire. If you hear air leaking from trigger when you attempt to fire the gun, most likely orings are not sealing. Remove the headvalve and lube the orings. If no air leaks from trigger when your attempt to fire, vent hole blocked. Good luck with your repair.

Aug 27, 2012 | Magnum Air 8 10 Gauge Framing Nailer

1 Answer

I have a N59 FN air is leaking from the bottom of gun I put ne trigger and O rings still leaking now what.


Air leaking from the bottom of the gun (path of driver) indicates that cylinder seal orings are leaking (if without nails in gun the driver is slowly pushed down the cylinder when air is connected then cylinder seal is leaking ). Cylinder seal snaps on the top of the cylinder and should fit snug and have no cracks. Easy fix for cylinder ring. Remove head and pull out cylinder. Then remove the cylinder ring (part #n50015). Examine ring for cracks and replace as needed. Examine body of gun where spacer oring makes contact and sand fine scratches. Replace orings as needed. If air is leaking between body of the gun and nose casting, replace gaskets. Good luck.

Jun 25, 2012 | Stanley Bostitch Nail Gun

1 Answer

Air leaks when triggered and no nail


Make sure no nails in gun. With air connected listen for leaking thru nose of the gun also. If leaking thru nose slightly, air is getting past the cylinder seal oring and/or top of cyl is not seating against headvalve. Repair leak to nose of gun before trying to fix head leak. With no air leaking thru nose of gun, add plenty of white grease to orings in the head (one oring at a time) to see if leak is less and/or grease will streak behind the leaking oring. Then repair as needed. May need slightly thicker oring or sand surface where oring makes contact to remove scratches that are allowing air to pass. Also air can enter the head thru the small port in the gasket leading to the head (make sure that the gasket is sealing).

Nov 05, 2011 | Campbell Hausfeld 2-in 18 Gauge Brad...

1 Answer

Air leaks thru exaust on Hitachi NV 83 nail gun I have replaced exaust valve and several o rings to no avail.


Examine exhaust tube under valve for cracks and make sure that the tube seals correctly against body of the gun with rubber gasket. If tube is ok and has rubber gasket in place, check for correct cylinder movement. Press down cylinder with thumbs, the cylinder should return. If it stays down, pull it back up. If it is very hard to pull up, cylinder orings too tight or body of gun is warped. If it comes up with light to firm pull, go ahead and reinstall the head and test. If air leaks, try bumping the head of the gun (with air connected) against firm rubber to reset the cylinder against headvalve. If it still leaks, suspect that the cylinder is not moving up against the headvalve due to tight fit. Remove the cylinder and sand surfaces where orings contact to remove fine scratches with 400 grit paper. Also stretch the spring below the cylinder a bit to exert more pressue. Lube the cylinder with silicone paste lube. If you suspect warped body, remove all the orings from middle section the gun and insert the cylinder into body looking for out of round (with no orings the cylinder should just slide in to body of gun easily). Good luck

Sep 24, 2011 | Hitachi Tools & Hardware - Others

2 Answers

I have a Hitachi coil nailer model # NV 83A and air leaks out the exaust when you put aior to it. I have replaced the exaust valve, piston bumper, piston o-ring, feeder shaft o-ring, and plunger o-rings,...


I dont recall that there are any orings in the head area. Large leak from head area is caused by cylinder not retracting and seating against headvave. Small leak is usually gaskets between headvalve or cracked tube above headvale or rubber tube seal not seating against body of the gun. Test cylinder movement. Remove the head and push down cylinder, the cylinder should retract. If the cylinder is already down, pull it up. If the cylinder is very hard to pull up, most likely orings too tight or body of gun is warped. If the cylinder moves up with just little force, reinstall head and retest. If small leak, remove head and remove headvalve and look very closely for cracks in the head and tubes.

Sep 24, 2011 | Hitachi Tools & Hardware - Others

1 Answer

Central Pneumatic item 94000 nailer. Need a top gasket and a plastick cylinder ring. Help!


Parts for central pneumatic guns are /should be available from Harbor Freight.com. Call their 800 number for information. If no joy, take your parts to Dewalt service center to try to match parts with Porter Cable framer. Porter cable parts are very close match to your gun. Good luck

Feb 08, 2011 | SK Paslode Sk312 Framing Nailer O`ring...

2 Answers

My Dewalt framing gun blows compressed air thru the nailer nose? Thx Kurt


Rebuild gun with gasket repair kit.
How it works: Compressed air enters through air hose and fills gun cylinder.
When trigger is pulled, air inside cylinder rushes out and pushes firing pin that shoots nail.

Inside the gun there are gaskets that seal the nose, the trigger and the cylinder head.
When any of those three gaskets fail, then air starts leaking.

Putting a few drops of nail gun oil into gun before connecting hose is supposed to protect gaskets.
But everything wears out, and sometimes folks use 3-in-1 oil instead of gun oil.
3-in-1 is detergent type oil and will cause gaskets to fail.

Another thing is guns that are not used frequently and gaskets get dry.
Putting in a few drops of oil and then immediately shooting gun will cause gasket to fail, because gaskets are still dry.
Best to put in plenty of gun oil, and let oil go down into gun for a few hours before connecting hose and shooting. Even so, nail guns are designed to be used every few days with continual oiling.

Add a comment for more free help.
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Jan 31, 2011 | Tools & Hardware - Others

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