Dewalt DC920KA Heavy Duty Xrp 18V Cordless Drill/Driver - Page 4 - Answered Questions & Fixed issues

Open your chuck as far as it will go and look inside. If you see a screw go to www.ereplacementparts.com/article/890/How_to_Remove_a_Drill_Chuck.html for a good how to on this.

If there is no screw inside the chuck you have to take the drill to a Dewalt service center and have them remove it. It takes a special jig to remove it and I don't think you want to spend over $200 to remove one chuck. Do not try to use the taper-fit tool on a cordless drill, they do not use the taper fit chucks.

Get a large 90-degree allen wrench. It's best to use the largest allen key the drill can accommodate, at least 3/8" to 1/2". Put the short end of the allen key in the chuck and, with the long end of the allen key pointing straight up, completely tighten the chuck.

Firmly holding the drill on the edge of a table, you're going to have to hit that allen wrench with a hammer, hard. Use the flat side of a hammer to hit the allen wrench so that the blow will spin the chuck counter-clockwise. Sometimes it can take a real hard swing, so swinging through smoothly helps.

if it is a keyless chuck soak the inside of the chuck with oil. charge the battery so you have max power. put a cloth around the chuck and use a pair of channel locks to hold the chuck and put the drill in reverse. good luck

don't know the sizes for the screw but it is the wrong way threads. when you get that out you need a very large allen wrench in the chuck and tight. lay the drill body on a work bench and hit the allen wrench hard to break it loose. it unscres normally.

One thing I,ve found with cordless tool batteries is that if they're completely dead, the charger won't recognize them. Try hooking a known good battery with a charge up to the problem battery, terminal for terminal, with small jumpers. Leave it hooked up for a minute, maybe a minute and a half. this should be sufficient to provide just enough charge to bring the battery up to the "threshold level" required for the charger to recognize it. Then, simply charge the battery in the normal way. If this doesn't work, you may need new batteries, or a new charger. Hope this helps you.

Yes it is the black ring with the numbers on it, the lower the number, the easier it slips. Higher number, less slip.

Sometimes this happens when you have a drill bit that slip. Take a pair of channel lock pliers, and try and turn the chuck counter clockwise. Do it sharply so the drill doesn't turn. IF that still doesn't work put the drill in reverse and try the channel locks again

If you lower the torque setting, you can just hold the chuck with one hand and pull the trigger (put it in reverse), then change the bit and reverse your order of operations.
once complete, increase the torque setting to where it was.

The problem is your batteries are either over heating or worn out. You might also have a problem with the charger but you'll need Dewalt tech support to determine if it's good or bad.
The first thing to do is clean the contacts. Use a white plastic pencil eraser and clean all the contacts you can reach. If there are any contact you can reach with the eraser use a Q-tip that is just damp (not wet) with rubbing alcohol to clean them.
Discharge your batteries completely then put them in the freezer for 8-24 hours. Take the batteries out of the freezer and let the set 24-48 hours after that put them on the charger, they'll either charge or you need new batteries (more likely) or a charger.

if its a reversible drill,you open the jaws wide,and undo the left hand threaded screw inside the chuck,then put the the chuck tool in,and use that to unscrew chuck off the thread,right hand thread

First of all, open the jaws of the chuck and look inside. If there is a screw in there you should be able to do this yourself. If there is no screw (sometimes torx/star head, sometimes flat/straight head) then yo uwill need to take it to a service agent/dealer as a special jig is needed to lock the spindle/chuck.
If there is a screw you need to remove it. It will be a left hand thread so turn it clockwise to remove. It will be proabbaly be tight as it will be thread locked in the factory. Once this is removed, clamp a 10mm allen key in the chuck adn steady the drill on a workbench. The actual chuck will be a normal thread so this is removed by turning it anti clockwise. It will take a sudden impact to start it off so put the gearbox in a low gear and turn the clutch to 'drill mode'. Holdong the machine steady you can hit the allen key sharply to start undoing the chuck. It may take several hits to get it going.

You may have inadvertently hit the hammer/drill switch and it is floating the middle between functions. This selector switch has a symbol showing a drill bit on one side and a symbol of the hammer on the other. Engage the switch bacK into the drill position

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Go to this site and you should be able to get the manual.

Hi, In my experience when the keyless chuck is sticky , it is because of some substance or debris that has gotten into the mechanism. I have used air presure, and I have used copious amounts of WD 40 . to flush it out and lubricate the workings. Running it fully in both directions several times and flushing in between.
Or it has become damaged, and needs replacement ,..

Please Vote !!

yes it can, what you need to do is lock the chuck as tight as you can and then replace the chuck retaining screw which you should be able to find locally, it is a left hand thread.

If you man changing the chuck, take out any drill bits and look down into the chuck. You will see a screw holding it on. On many drills this screw has a reverse thread so it loosens in the opposite way to regular screws. You have to undo this screw to remove the chuck, then fit a new one of the same spec or one suitable for the drill and reassemble in reverse order.

you need to replace the chuck one of the jaws has broken threads on it. Go to Dewaltservicenet.com for a replacement chuck and there is detailed instructions in the tip section on how to replace it.

i cant say 100% sure for that drill but im betting its not.
it probably has red loctite on it which is very tough to break free. put some heat to it. then it will come easily

You will need to lay the drill on a bench then remove all the screws that hold the two halves of the case together, carefully pull the case apart to expose the wire connections