To those in the know, an electric drill is one of the best investments any homeowner can make in the world of electrically-powered tools. An electric drill, in the right hands, is the equivalent of a Swiss army knife. Both are tools that provide indispensable power to the owner. Indispensable. You will be hard-pressed to locate a workshop that doesn’t have at least one electric drill and if you do find one, you are advised not to purchase any DIY project made within. One of the reasons that the electric drill is so ubiquitous is that there are so many versions at your disposal. Even those that don’t connect to an electrical outlet. Those are no electric drills. Those are battery-powered drills and they are suitable for use only by spinsters and pre-pubescents. As with all electric tools, drills are subject to the vagaries of mechanical failure. Learning how to troubleshoot a problem with an electric drill means avoiding frustration and saving money otherwise paid to a repair shop. Or a shop that sells replacement drills.
The first step to repairing your electric drill, saving money and getting well on your way to learning how to do things with your drill like mixing paint, decorating walls with spattered paint and creating the most amazing whipped cream you will ever taste in your life. Check that the power cord is plugged into the wall if the drill fails to operate at all. You’d be surprised how many “broken” electric drills can be solved just by plugging the dang thing in. And even if you see that it is plugged in, it won’t hurt to make sure it’s plugged in securely and all the way. If the cord is securely attached to the wall, head to the main service panel to check for either a blown fuse or a tripped circuit breaker. Replace with a new fuse or reset the circuit breaker necessary.
Tighten the chuck if the motor of the drill is humming, but it is not working. Causes of this problem include loose or jammed bits or damaged chucks. Replace the current bit with another one to make sure you are using the correct bit or determine if you are using a damaged bit.
Turn off the drill and unplug it. Remove the bit and unscrew the chuck counterclockwise. Place the chuck on the edge of a table with the key in the keyhole at a 30-degree angle. Hold the drill in place and hit the key with a ball-peen hammer until the chuck has loosened enough that you can turn it by hand. Unscrew the chuck and remove it from the spindle. If damaged, replace with a duplicate.
Tighten the house fasteners if your drill begins to vibrate or rattle excessively. Another cause for this problem is a loose or damaged bit which be solved by tightening the chuck or replacing the bit. Inspect the motor to determine if the motor fan has gotten damaged if the other solutions fail to stop the drill from vibrating or rattling.
Place a few drops of cutting oil onto the tip of the drill bit to reduce friction when you are drilling into metal. Sprinkle some water on the surface of masonry to keep the drill from overheating. This procedure has the additional benefit of cutting down on the dust that is produced when drilling into masonry. Servicing the chuck is another way to deal with a drill that is overheating.
Make sure that your extension cord is the correct size or rating if your notice a decrease in the power of the drill when you use that cord. Use a can of compressed air to clear out the air vents if the problem is not located in the extension cord. Replace an incorrect bit as a means of dealing with the problem of diminished power. When none of these solutions result in the power of the drill coming back to normal, inspect the motor for damage to the fan.