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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I have a rotozip 20 and the new keyless chuck just does not work. Am I doung something wrong?


Try not inserting the bit all the way in until it bottoms- it should not bottom. Also make sure it is the correct size range for the bits you have.

Feb 10, 2012 | Bosch Drills

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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
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Insert the hex key into the chuck and tighten the chuck
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Feb 15, 2011 | Craftsman Drills

1 Answer

How do I remove the chuck from a dewalt drill model dw100


Easy,
I just had the same question and could not find any info except sent it to Dewalt or pay for a $70 tool???

A normal chuck you would unscrew the left handed lock screw down the end of the chuck. The DW100 doesnt have one.

Wrap a cloth around it and tighten in vise. Chuck a big allen key in it...5/8 or so...tighten that down. It should spin freely in the drill which is locked in the vise. move the allen to 3 or 9 o clock position...ie horizontal. get your fingers out of the way. Hit the allen with a hammer...hard...in a direction that is "lefty loosey"...you may have to do it a couple of times but eventually the threads will break loose and the chuck will unscrew. CHuck is held on by friction only. Replace the chuck in the same but opposite manner. Hitting the allen so that it tightens things up.

The key is that the gearbox provides enough backward resistance when the allen is hit firmly to allow the chuck to unscrew itself...

...easy

Nov 19, 2010 | Garden

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

May 08, 2010 | Drills

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

Oct 22, 2009 | Skil Drills

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...

Mar 23, 2009 | Black & Decker 18V Drill / Impact Combo

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.

Feb 16, 2009 | Dewalt DC927KL Heavy Duty 18 Volt Cordless...

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