Question about Makita 18V LXT Lithium - Ion Cordless Impact Driver Kit Model BTD140

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Chuck won't tighten

Can't get the chuck to tighten

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The chuck is held onto the drive shaft via screw located inside the chuck. The screw has reverse threads and sometimes the screw gets loose restrictinhg the chuck tightening. Turn the chuck to loosen and tighten the screw as though you were removing a normal screw. Good luck

Posted on May 23, 2008

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Posted on Jan 02, 2017

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1 Answer

The chuck wont tighten


The outer sheath of the chuck turns a thread on the back of the jaws in the chuck and it it is not tightening correctly then the jaw threads have been broken/cracked or the jaws have been stressed out of alignment and are not longer closing in a parallel manner. Best replace the chuck as they are generally not repairable.

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The chuck on my new makita drill is stuck with a drill bit in it. It won't open back up.


This is caused by tightening the chuck using the drills power, if you clamp the bit in a vice and using a pair of multi grips on the chuck in an anti clockwise direction gently bounce the grips and after a few tries it will undo, don't use too much pressure or try to unwind it in one move or myou will damage the chuck sleeve

Oct 16, 2012 | Makita Drills

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THE CHUCK WON'T TURN WITH THE MOTOR RUNNING. YOU CAN HOLD IT IN YOUR HAND AND FEEL IT CLICKING AND HEAR IT WHAT COULD BE WRONG WITH IT?


The DCD950 drill has a chuck that does not require the reverse-threaded lock screw. It is put on with lok-tite and a good deal of torque. It is hard to remove without the Dewalt vice tool to hold it but not impossible. Some can be removed by tightening the chuck in a vice and, using the drill handle for leverage, apply steady, even, strong pressure until it breaks free. Using this method usually bends the part of the chuck in the vice making it useless. Another reason for the chuck not turning when the motor is turning is a broken transmission. If the chuck works properly in tightening down and releasing bits, your problem may be in the transmission. If you go to http://www.ereplacementparts.com/ and search for your model number you can look at a breakdown of your drill and what you're looking at to replace the transmission.

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1 Answer

How do I replace the chuck on a craftsman model 315.101370 hammerdrill


The chuck can be removed and replaced with a new one.
Unplug the drill.
Insert a 5/16 in. or larger hex key into the chuck of the
drill and tighten the chuck jaws securely.
Tap the hex key sharply with a mallet in a clockwise
direction. This will loosen the screw in the chuck for
easy removal.

Insert the hex key into the chuck and tighten the chuck
jaws securely. Tap sharply with a mallet in a counterclockwise direction. This will loosen the chuck on the
spindle. It can now be unscrewed by hand.

Feb 15, 2011 | Craftsman Drills

1 Answer

Drill bit keeps coming loose


When the drill bit on a hammer drill keeps loosening up one of two things is happening. 1. The chuck is worn out and needs to be replaced. 2. The chuck is not tight enough before you start drilling. If you have the style of chuck that requires a key do not be bashful about using maximum force to tighten the chuck and move the chuck key from hole to hole and tighten it in each position. Joe

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1 Answer

Skil 3/8 Hammer drill #6425 chuck ring broken in half


get a new chuck - thread is a 3/8-24 left hand thread

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1 Answer

How i remove a dewalt drill chuck Model dc988


put the drill in speed setting 1 before you continue~!

Step 1. This step loosens the screw inside the chuck. Open the chuck all the way — if you see a screw inside, it’ll need to come out before you can remove the chuck. If there’s no screw inside, you can skip steps one and two.

Step 2. If there’s a screw inside the chuck, typically the threading will be left-handed, so turn it clockwise to remove it. Be careful, and use the right size screwdriver — you don’t want to strip the screw.
step-2.gif Step 3. Insert the largest hex key that you have into the chuck, short-side-in, and tighten the chuck. Tap the hex key sharply in a counterclockwise direction to loosen the chuck. Now you can remove it by hand.
step-3.gif This won’t work for every consumer drill ever made, but pretty close. Most drills will match one of two common chuck-threading standards: 3/8′-24 threaded mount for 3/8′-capacity drill chucks, and 1/2′-20 threaded mount for 1/2′-capacity drill chucks — but on some drills just the opposite may occur. To be safe, always check the thread count before you buy a replacement drill chuck.

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1 Answer

Black & Decker Impact Drill. Mod. 7277 type 3


If you say that the chuck can not be tighten only, then I would say that the left thread screw that keeps the chuck to the tool have become unloosen and can not allow the chuck to be tighten. The remedy for that is to unloosen the chuck as much as you can, then tight the left thread screw but rotating it left till the bottom and then the chuck will work. All the above if the chuck can not be tighten...

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2 Answers

Removing the dewalt DC925 'rohm' chuck


I have a DC927 and a DC926 that I removed 1/2" Rohm Supra SK key-less chucks on. This process is pretty simple. Put the drill motor in 1st gear. Put the clutch ring in drill mode and not in driver or hammer. Reverse or open the chuck all the way. Hold the chuck firmly in a vise and give the drill a good POP counter clockwise. The last step can also be done with a pipe wrench by placing the drill on a work bench and turning the chuck counter clockwise. Continue to un-thread until the chuck is removed. The replacement chuck must have the same mounting process and mechanism. Put a few drops of locktite on the threads and thread the replacement chuck back on. Tighten the chuck using the vise or pipe wrench. Place the short end of an allen wrench in the chuck and tighten down on it. Placing the drill on a work bench, strike the allen wrench with a mallet to finish tightening and locking down the chuck. Congratulations, you have just changed out your chuck.

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