I need wiring diagram for a Black&Decker DR550 corded drill.Replacing power cord,so I need to find out which holes it goes into.

Before the invention of the hammer drill, people face a lot of trouble drilling in the tight spaces. They had to break down the parts in smaller units in order to drill it properly. But, now the time has changed and the users can easily drill on a portable manner. But, one might wonder, what makes the best hammer drill
? The answer is being more and more complicated each year with so many brands on the market.

The market offering is huge and most of the brands are continuously reinventing their products. We have analyzed many different drills from cordless hammer drill to a corded hammer drill, to hammer drill machine to cordless hammer drill drivers. Thus, we have come up with these top picks.

Look beside the wire in the switch their should be a small hole.put a paper clip in this hole and push down and then pull on the wire.

This corded drill has enough power to drill normal brick masonry without issue as long as you're using a masonry bit.

http://www.homedepot.com/b/Tools-Hardware-Power-Tool-Accessories-Drill-Bits-Masonry-Percussion/N-5yc1vZc23f

Bring the iron to a Hardware store, ask for a set of tools right for the type of screws (maybe Torx, Security Torx, tri-wing, bristol and others).

Once you can open the iron and access to the cord you may change the power cord. it is easy.

Power goes on & off because the power cord is broken. This failure is very common on irons.

Good luck

Porter Cable has not offered a replacement for their poorly designed 19.2V chargers. I had the same problem and happen to like my drill and circular saw. I found a universal charger called a model number CHUN-2420. Google it--I got mine for $27 plus shipping. All you need to do to make this work is splice 3 wires.

My charger is a PC model 8624, so the instructions might vary slightly between the chargers. Remove the six screws on the bottom of your PC charger. Remove the bottom section. Remove the screw(s) that attach the circuit card to the plastic housing. Disconnect the 3 pin white charging connector from the circuit card, and cutoff the connector. Discard the circuit card and power cord. Cut the 3 conductor (red/yellow/black) cable coming out of the Chun-2420 approximately 2' from the charger. Splice these three wires to the three wires in the charger housing that connect to your battery. In my situation, Red/Red, Yellow/Yellow, White/Black. To verify, red=positive, black/white=negative, yellow=temperature sensor. Wrap the red/yellow/black cable with electrical tape where it exits the PC charger through the power cord hole. Re-attach the bottom.

If you look at the trigger/switch mechanism, you'll note little lettered ovals on either side at the bottom/base where the wires go. The black (hot) wire from the plug goes to the side stamped "LINE", and the white (neutral) wire goes to the side stamped "LOAD"

Go to www.2helpu.com which is the Black & Decker after sales service site. Most, if not all diagrams are located there, including manuals

Hi,
your NG3 should have been preprogrammed for the type of batteries you are charging. The NG3 has the 3 wires from the power cord. Here is what I have done:
Brown from charger goes to black wire
Blue goes to white wire
yellow green goes to green ground.