DeWalt drill chuck

[Roadking16]

I am looking for the best method to change the drill chuck on my 20 V DeWalt cordless drill. I tried the method from the Dewalt website and also looked at YouTube. I clamped in a hex key and smacked it with my heavy mallet. But to no avail it did not come loose. I certainly do not want to break it.

I want to put on a better drill chuck with a key.

I believe this is the “torqued” on chuck. It has no set screw. Anyone have any advice?

 

[branimal]

I am looking for the best method to change the drill chuck on my 20 V DeWalt cordless drill. I tried the method from the Dewalt website and also looked at YouTube. I clamped in a hex key and smacked it with my heavy mallet. But to no avail it did not come loose. I certainly do not want to break it.

I want to put on a better drill chuck with a key.

I believe this is the “torqued” on chuck. It has no set screw. Anyone have any advice?

I had to do something similar with an old milwaukee right angle drill. Wrench on one side, hex key in the chuck. And then cheater bars on everything. She came right out. (I tried smacking with a hammer. No luck. )

 

[WillyBoy]

One way to determine that there's no center screw holding the chuck in place is to open it all the way and look down the middle with a good light. Every reversible drill that I've had that needed the chuck replaced, had a screw through the bottom of the chuck into the shaft it was threaded onto.

 

[The Cobbler]

Dean Doherty on You Tube has several videos on Dewalt Chuck replacement. sometimes he has to disassemble the gear housing to grip the arbor in a vise in order to change them. sometimes he cuts them off ...

 

[Daedalus]

One way to determine that there's no center screw holding the chuck in place is to open it all the way and look down the middle with a good light. Every reversible drill that I've had that needed the chuck replaced, had a screw through the bottom of the chuck into the shaft it was threaded onto.

+1. My Dewalt cordless drill that I replaced the chuck on had a Torx head screw dead center at the bottom. I don't recall for sure, but it might have been LH threaded. I think I ended up having to cut off part of the old chuck to get some vicegrips on the head after the socket stripped out. Not a straightforward job for me that time, but that drill has seen some use!

 

[jsaw]

Last one I did, removed the center screw, then clamped a 3/8" drive hex bit socket in the chuck. A quick blip with the 3/8 impact and the chuck was off.

 

[rodder98]

I have a DeWalt 20V drill/driver, model DCD771 that is about 18 months old. I put a small drill driven water pump in the chuck and tightened it by hand. I did it many times to pump some water out of a small boat. But today, I cannot get the chuck to turn loose. I tried putting it in reverse with a big channel lock pliers on the chuck. I heard the torque lock click but the chuck will not loosen. I tried tapping the chuck all around it, (not loosening.) Any ideas as to how I can get the chuck to loosen up?

 

[GeoBruin]

I have a DeWalt 20V drill/driver, model DCD771 that is about 18 months old. I put a small drill driven water pump in the chuck and tightened it by hand. I did it many times to pump some water out of a small boat. But today, I cannot get the chuck to turn loose. I tried putting it in reverse with a big channel lock pliers on the chuck. I heard the torque lock click but the chuck will not loosen. I tried tapping the chuck all around it, (not loosening.) Any ideas as to how I can get the chuck to loosen up?

Do you have a strap wrench?

 

[neophyte]

Most keyless chicks do use a center locking screw, as has been mentioned.
The screws vary, with some requiring hex keys, others torx, and I think I’ve even seen slotted versions of the locking screws.
If the center screw is there, it would need to be removed first.
Other drills, or even drills with a locking screw, may also use threadlocker.
Some drills also have the chuck too heavily torqued onto the drill arbor.
With an older Milwaukee corded drill, I first had to remove the locking screw, and then had to tighten the chuck onto a large allen key, before locking the other end of the key in a vise, and quickly pressing and releasing the trigger while the drill was in reverse.
This broke the overly torqued on chuck free, but probably could have screwed up my wrist if things had gone wrong.
In the case of that drill, there were hex flats on the threaded arbor allowing the use of a thin very thin wrench, if I needed to do similar again.
The suggestion of an impact wrench made above is probably safer.
I tried the “whack the hex key method” that is routinely suggested, and did not find it to work.

 

[sz0k30]

Dean Doherty on You Tube has several videos on Dewalt Chuck replacement. sometimes he has to disassemble the gear housing to grip the arbor in a vise in order to change them. sometimes he cuts them off ...

I think I found the same video, cause I have one of those without a screw. Real screwed up design.