Why is my DeWalt D51275 15 gauge angled finish nailer bending nails and jamming?

SOURCE: Nailer jams with 1-5/8 brads

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.

SOURCE: DEWALT 16 GAUGE ANGLE NAILER WONT FIRE BUT THE

If the light keeps flashing then the battery is not charged enough to fire the gun. recharge the battery or buy a new one if it continues.

SOURCE: carraige in dewalt nailer

just goto:
http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

download the support manual. You should be on your way

SOURCE: nail gun wont fire

First - the air pressure has to be high enough - check the regulator on the tank to make sure it is delivering in excess of 60-70 psi (which I am sure you have already done).

If you have dry fired these guns (i.e. shot them off with no nails in them while you were lubricating them maybe) the mechanism inside could be damaged. I had that happen to one of my nailers (same brand). That was when I learned not to dry fire them...

Since both of them are not working though I would be more inclined to look at the air supply first.

SOURCE: I only shoot one nail and the rest is air

It sounds to me like the spring within the magazine is not functioning properly. WIth brad nailers, it is that tension that places the nail into the proper position for firing. This may be as simple as cleaning the loading area and slightly lubricating it. WIthout seeing the actual gun, I cannot tell you for sure. If you are not sure of this, look for a professional tool repair shop in your area. They will be listed under industrial tool repair.

Dan