I tried to take a keyed chuck out a bosh drill and replace it with a keyless chuck. When i opened the keyed chuck jaws. There was no screw at the bottom inside. The keyless chuck had a screw at the bottom inside the chuck when it was opened. I could have taken the keyless chuck out but I didn't know how to take the keyed chuck out with it having no screw. How do u take chucks out with no screw at the bottom and its it possible to replace it with a keyless chuck with a screw at the bottom.
1. Turn the screw clockwise to take it out.
2. Then you needs 3/8 allen key & insert the short side of the allen key & tighten the chuck.
3. hold the drill at the edge of the table & wack the allen key
counter clockwise & do it again as needed.
4. dewalt keyless chuck will fit but you might add a washer to insure the chuck is not rubbing the clutch collar.
5. putting it back together the other way.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
the screw at the base of the fully opened chuck is a left hand thread
it may be a slot but normally they are philips head or hex head undo that screw by turning as if doing it up
once it is out , hold the shaft and by placing something across the now partially open jaws a quick hit on that object with a hammer will loosen the chuck off the shaft you can place a allen key in the jaws and close them up and use that as an object to hit
open the chuck jaws right up
down the center of the chuck you will see either a philips screw head or a hex head for allen key
hold the shaft at the base of the chuck to stop it from turning and undo the screw in the chuck in a right hand direction ( it is a left hand thread) when you have that out , still holding the shaft turn the chuck in the left hand direction ( normal thread ) and screw the chuck off
to assist in undoing the chuck do it up so that the jaws come out a bit
place something between the 3 jaws to act as a lever or use an allen key in the chuck done it tight and use that as a lever to undo the chuck
the secret is the lh thread screw in side the chuck which stops it from undoing when the drill is in reverse
Try shooting some WD-40 lubricant into the 'chuck' and let it sit for awhile, then rotate the outer part of the chuck CCW to loosen the 'jaws'. If the chuck is a keyless type, just hold the chuck and turn the reversing switch to 'reverse', then gently apply power to the trigger--that should open the chuck jaws. You will likely find that a leather glove on the hand holding the chuck will help prevent a burned hand if you lose your grip. If it is a keyed--type chuck (there will be ring of gear teeth on the front edge of the chuck), then a key with a small gear near one end is required to turn the chuck open (turn the key CCW). Hope this helps!
chucks are screwed to the drill by a left hand theaded screw. try to get the jaws open enough to access screw then replace with new keyed jacobs chuck. they are brill.
If the chuck will open far enough, reach in with a screwdriver and remove the retaining screw. If a key type, insert the key and tap the key in a CCW direction to loosen. If a keyless type, use 'Channel-lock' pliers and tap them lightly in a CCW direction. Reverse the operation with the new chuck. Good luck!
That can happen if the jaws inside the chuck, usually 3 triangular pieces get jammed together. With chuck facing down tap chuck several times to loosen jaws. If that doesn't work spray a small amount of WD-40 into chuck and try again
you have three jaws in your chuck, one of them will probably have a small burr on it causing it to stick.
try this...
tap the chuck with a small hammer then try to use the chuck key gently in the opposite key hole to the hammer blows. turn chuck though 120degrees and repeat.
if this does not work chucks are fairly universal and easily replaced (i would recommend a keyless jacobs). you can get the old one off by removing the ph2 (phillips) machine screw inside the centre of the chuck... be careful!! this screw is usually soft and counter threaded... when screw removed bash off the chuck with a hammer and cold chisel...
They are not, you need to buy a new chuck. The tolerance is so close on the collar that you can't repair it. On some of the older keyed chucks you could but the jaws cost about as much as a new one.
I had the locking screw come loose in the center and bottom of the chuck it has a left hand thread and is a torx head . It had backed out and prevented the chuck from closing.
×