Dewalt DW411 quarter - sheet palm grip sander with dust collection - Page 3 - Answered Questions & Fixed issues

Time to replace a few orings in the trigger valve. There are at least three orings made of vinyl that fail, two on the trigger pin and one on the plunger.

If it works when upright, perhaps the nose piece is not fully depressed. I have the same problem using my pneumatic finish gun.

http://www.ereplacementparts.com/dewalt-d51823-type-clipped-head-framing-nailer-parts-c-1009_1165_2972.html http://servicenet.dewalt.com/Products/Detail?isId=true&productNumber=D51823&selectedType=16296

If you have a long enough shaft you can grab onto it with a pipe wrench or vice grip while using an open end on the large nut. You may be able to get it into a bench vice as well. These quite often have lock tight on them as well. Heating may help you out but you will have to move quick.

DeWALT DW433 Type 1 3 21 Variable Speed Belt Sander Parts And the correct tools

the vanes in the small air motor are stuck try a small amount ( couple of drops ) of sewing machine oil in the air inlet and see it it will spin you may need to bump the pad on the bench to jar the shaft to start rotating

If you release the belt that would give you more room to get the cord out. When you releas the belt it brings the rollers together which loosens the belt.

I've been using dewalt tools exclusively for 15 years. I've fixed numerous drivers, sawzals, etc. I've learn 3 things over and over again. 1 cleaning & lubing are grossly under rated, 2 if one part goes the rest are not far behind & 3 it has never cost me more than $20 to $30 bucks more to have the repair place rebuild it than to fix it myself. And most times they give you a new bulk packaged tool as a rebuilt. My recommendation: have it rebuilt...enjoy the new tool.

how old is the battery, test and recharge, if ok make sure is well oiled. May have to have it serviced if it is still low on torque.

faulty or dirty connections

I would suggest giving our Service Center so we can get your unit looked at. DEWALT com

Make sure the brads are not too small for the gun.

At least 12"

What model gun is this? Framing, finish, battery powered?

Power? circuit breaker? Plug? Owner's manual. Troubleshooting Does the motor hum? if so you have something jamed in the planer cutter.

Brushes can definitely cause this but unless you feel fairly confident in pulling the unit apart, it may be more cost effective to just replace it. It would be unusual to see the brushes wear out so quickly but I do not know how much you use it or the load you put it under. I have a Rigid that I use a LOT and have had it for probably 5 - 6 years and it is holding strong. These things just tend to last. I would contact DeWalt and see if you can have them send you new brushes first and then go for it; the worst is that you ultimately have to replace it (which you might have had to anyway) and the upshot is that you fixed it yourself and now have many more years and sawdust sneezes in your future.

is this a gas cartridge type of nailer? It could be the effects of gravity on the spray nozzle. try pushing down in normal position but dont fire it. quickly move to ceiling then try firing. I am not a fan of this type of nailer as they are problematic and finicky.

There a Youtube video on how to do this https://www.youtube.com/watch?v=8qDwehIi8CU

I think you have to call the service center on this one, http://www.dewalt.com/Find-Service-Center.aspx

5-10 drops directly in the air fitting before each use.