Top 20 Dewalt Heavy - Duty 18 Gauge 2" Brad Nailer Kit Reconditioned - D51238KR Questions & Answers

That would usually be performed by a spring - is it OK?

Continuous flashing indicates low battery charge or poor battery connection. If lights flash 4 or 5 times indicates possible control module fault.

The problem that you describe indicates that the orings within the trigger failed. You could replace the orings if you have a source for very small rings (2mm x 1.5 for the firing pin inside the trigger valve) or just replace the whole trigger assembly (under $10). Lube all orings with white grease or silicone paste lube (remove head and lube head valve assembly). Good luck

Per your addendum I would have first told you to check that you are using the proper guage nails. Second you should make sure you are loading the nails in the lowest channel in the magazine so they are at the bottom of the magazine. If you load them into the top of the magazine they have more time to go off course before they get into the wood.

Easy fix if air is leaking out the top of gun. Remove the head and lube with white grease or silicone paste. If orings seem to be loose, order repair kit from dewalt (you can tighten orings by removing the oring and wind a bit of teflon tape in the oring groove). If air is leaking from the trigger, replace the valve. If air is leaking out the bottom where the nail ejects, pull out the cylinger and lube the orings that seal the cylinder to the body of the gun.

Make sure the area where the nails slide through is nice and clean. Lubricate with some spray silicone. They may not be seating all the way against the nail driver mech.

Depending on type of work/wood the finer the nail, results in increased jams. Eighteen gauge and finer experience more jams than say 15 gauge. Fine gauge nails also suffer from square cut tip. I believe that if the nails were pointed (like Senco nails ) they would more likely drive true. Jaming can be decreased by selecting the correct nailer for particular work. Dimentional lumber and hardwoods tend to increase problems compared to quality plywood or non wood trim materials. If you experience jaming with any type of wood then time to look at driver for possible problem. Check driver for bent or worn tip. Driver blade can be dressed square on grinder. Some drivers have a slight angle/taper ground into tip on the side that faces the rails. This taper continues up the blade about 1/2 inch. The taper will prevent the driver from hitting the second nail. On really hard woods, try drilling a fine pilot hole to produce best results. Good luck

Wath acount you mean? More details needed.

Increase air pressure.... you're way too low......

If it is the cordless Brad Nailer and will not fire nails anymore chances are the drive belt came off track. Internally those DeWalt cordless nailers operate much like a Baseball pitching machine. And when you fire a nail the drive belt pinches the driver blade which fires the nail. Here is the product documentation from DeWalt's website. http://www.dewaltservicenet.com/Products/DocumentView.aspx?productid=68728&typeId=16768&documentId=35981
The Drive belt is part #59. I have never opened one of these before so I can not tell you if it is a simple fix, I would open it up and peek around just a few screws on the top should open it. If you do not feel comfortable opening that unit yourself, I would take it to an Authorized DeWalt repair facility.

seek advice at TOOLKING

ereplacementparts.com. see if they have a schematic for this gun. Good luck sound like a head cap seal.

You should be able to find a local Dewalt/Black and Decker service/repair shop and they will be able to sell you all the parts you need, I would recommend getting a full upper rebuild kit and replacing everything, while you have it open already

It sound to me that the 1 5/8 brads are not 18 guage but probably 16 guage and they will not work. Double check them first before going any further. You can usually lay them next to the smaller ones that work and see the size difference, if not let me know and I will dig deeper.

here is a link copy and paste https://sawmillcreek.org/showthread.php?111567-DeWalt-733-Rollers-stopped-moving ..

It needs new blades - likely has a chip in one. See link for replacement tutorial

https://www.weeklytools.com/how-to-use-a-nail-gun-with-an-air-compressor/ We may not need a drill machine almost the whole time. But there is a demand for a pilot hole during the home finishing process. This post is not for you if you are a professional. However, in most of the cases, we observe the necessity for a pilot hole. From wooden doors and windows ...

I’m not trying to be a wise guy but the regulator has an adjustment on the bottom

The nailer must be firmly pressed against the surface you are planning to nail. This will arm the nailer in preparation for firing the nail.

Red is pos and black is neg.