Question about Dewalt Heavy - Duty 31° Clipped Head Framing Nailer - D51822

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I put a new O-Ring in a Dewalt Framing Nailer D51822 and it doesn't work. It doesn't nail it when I press the trigger.

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Posted on Jan 02, 2017

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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

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SOURCE: 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

Posted on Jul 21, 2012

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1 Answer

Dewalt framing nailer D51822 type 1


you may have to hand push the anvil back up , using too much air pressure will ever time cause this

Jun 13, 2016 | Dewalt Heavy - Duty 31° Clipped Head...

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

Common problems dewalt clipped head framing nailer


there is NO easy solution for this, but unplug air and get a pair of safety glasses and a punch and try and knock the driver up into the tool away from the nail or if it is just jammed try and pull the nail out. You didn't really specify where the problem is. Let me know if you need more assistance.

Jan 05, 2012 | Dewalt D51822 Clipped Head 2Inch to...

1 Answer

All the sudden the nail gun stop working, pull the trigger air leaks out at trigger area


I had a similar problem with one of my nail guns. What I found was a small rubber o-ring in the trigger mechanism had split. Once I replaced this the problem was corrected and the unit functioned fine.

You could replace the whole trigger assembly for about $35. But if you remove the assemble and replace the split-ring this would only cost a couple of bucks at most.

Trigger assembly shown below. ereplacementparts.com is one possible source for the trigger assembly others can be found on the Internet.

part_641006-00_med.gif

Aug 21, 2011 | Dewalt Heavy - Duty 31° Clipped Head...

1 Answer

D51822 framing nailer - worked just fine for a couple of hours then refused to fire nails. Pulling the trigger now results in a small puff of air. Current air pressure is set at 100 PSI. I have not used...


Yes your problem right about lubericatoin try putting lite oil in it hopefuly you didn,t taer one of the seals but if you did just standard o rings and you can get them at a hardware store and the gun is easy to rebuild

Nov 29, 2010 | Dewalt D51822 Clipped Head 2Inch to...

2 Answers

I am having problem with my Dewalt D51823 Framing Nailer- air started leaking out of the nose always when is plug to the compressor. the gun is immaculate inside. quite annoying the compressor keep...


Either the plunger has not completely returned to the "pre-firing" position, or there is a defect in one of the o-ring seals. Make sure that the gun is sufficiently lubricated and if so, then next check the condition of the o-rings. An improper seal will cause this. It is also possible that the trigger assembly has a small crack/leak.

Dan

Jun 11, 2010 | Dewalt Heavy - Duty 31° Clipped Head...

1 Answer

Dewalt D51822 leaks air


its a seal leak, but if it's under warrenty, send it back

it's not worth voiding the warranty by doing it yourself

Dec 09, 2009 | Dewalt Heavy - Duty 31° Clipped Head...

1 Answer

I've got the: Dewalt Heavy - Duty 31° Clipped Head Framing Nailer - D51822 As soon as I hook up the hose to it there is a leak some where. It's faint but makes my compressor kick on immediately. I...


Don't know if this will help you but here goes. I have a Bostich nailer and had to replace the check valve under the trigger.(at least it acts like a check valve, stops air loss when disconnecting gun from hose) It was leaking badly and had to remove trigger to replace the kit. You can do it yourself like I did or take it in to a shop. I carefully punched out the roll pins, replaced the kit after greasing the o-rings with lubricant that was supplied with kit and replaced the trigger.
Good luck

Dec 09, 2009 | Dewalt Heavy - Duty 31° Clipped Head...

1 Answer

Head Framing Nailer - D51822 - dissasembly problem


You have to remove the cylinder. To do this use two flathead screwdrivers on opposite sides and gently pry the cylinder out being carefully not to damage anything. If you have to replace the oring on the bulkhead it takes a little bit of finesse to work it out of the head. I usually put the nailer in a vise and use both hands, two fingers from each to pull the bulkhead out. It's not easy and you will bust your knuckles.

Sep 08, 2009 | Dewalt Heavy - Duty 31° Clipped Head...

1 Answer

Dewalt 51844 round head nailer


Could be a couple things, the seal ring on top of the cylinder or a cut oring or just a faulty trigger valve assembly. I would take it back and have the repair shop correct the problem for you at NC. Let me know if still a problem and I will look at a schematic and give you part numbers.

Feb 17, 2009 | Dewalt Heavy - Duty 31° Clipped Head...

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