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My nail gun stopped could be seized up from lack of there a solution to this (Airco product)

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There could be a couple of things wrong. First and foremost check to see if there is a nail head stuck inbetween the driver and the nose. Use a flashlight and look into the nose. (Make sure it is not attached to an air hose. SAFTEY FIRST) If there is a nail head stuck in there you may be able to free it by using a flat head screw driver and a hammer to beat the driver back into the cylinder and free the nail head.

After checking for a nail you may want to remove the back head cap and see if any of the seals or orings are damaged. You may need to replace the main driver oring or seal. There may be damage to your cylinder if scarring has occured so make sure to inspect the cylinder with a flashlight.

Also check the valve orings and some brands have a spring and piston stop that get damaged.

If you could give me a better description of what occurs or doesn't when you hook up air I may be able to point you in the right direction a little better.

Posted on Sep 14, 2009


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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

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If the trigger is set to single fire, you will need to place the gun against the work then pull trigger as you have done. Try setting the trigger to bump fire and try again. If hear a thump inside the gun, remove the head and check that the head valve in not stuck from lack of lubrication. Easy test, remove the nails, remove trigger pin, remove trigger and manually push trigger firing valve. If the gun fires then suspect faulty trigger or safety arm not lifting enought to activate the trigger valve. Good luck

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1 Answer

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I have a Hitachi nv 83 nailer,the firing pin sometimes does not return all the way back in,I have pushed it in with a screw driver and it only works for a short while.Any help it would be much...

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My nail gun was working fine and suddenly stopped. I checked to see if a nail had jammed or if the fuse had blown, the fuse was fine and i removed a nail from the shaft. When i tried to use it again it...

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1 Answer

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Excess oil will eventually be consumed /blown out of gun, however if you store the gun over-nite with air inlet pointed down, gravity will assist. I find that oil /water will accumulate inside gun especially if compressor is passing oil and/or weather conditions cause system to produce lots of water. Majority of guns that come in for repair suffer from a lack of lubrication. Several drops at start of day should be ok for oil lubricated compressors and maybe more for oil-less. If oil drips out of gun overnight (if stored as stated above) then reduce drops. What actually shortens life of gun is debris that enters gun from handling and that enters hoses during transport. Before connecting air hose to gun (with hose under pressure) momentarily connect a spare quick connect fitting and blow debris out of hose.

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1 Answer

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This can happen for a number of reasons.

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2) Hitting another nail or other extremely hard surface (old roofs are known for this)

3) Defect in the gun or lack of lubrication.

Since this is a reconditioned unit, I think that the gun is probably fine. Verify that the compressor has the correct pressure and that the hose is large enough in diameter to deliver sufficient air to the gun. Check the CFM (Cubic Feet per Minute) rating of the compressor/tank combo against the requirements of the gun.

Keep us posted,


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1 Answer

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1.) Lubricate nail gun
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If that doesnt work the rod may be bent or the seal around it may be worn.

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