Question about Hilti TE 7-C 120V Rotary Hammer Drill

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Have a te6c and the chuck fell off- how to put it back on? looks like may require a large vise to press it on?? phil

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Pull back on the collar of the chuck and slide it on and then release the collar and turn till it locks onto the spindle.

Posted on Oct 01, 2009


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Open up chuck for largest drill bit. Look inside and you will see a screw, remove the screw. Put a pair of vise grips on the stationary part of the drill chuck, which is the part of the chuck that the tightening tool goes into. The chuck is screwed onto left hand threads. Take a rubber mallet and hit the pair of vise grips clockwise sharply, to loosen chuck. You can now do what you planned on doing. GOOD LUCK FRIEND.

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1 Answer

Hilti TE72; i have a problem getting the bit out of the chuck, the sliding collar will not go back far enough due to damage on the metal shroud it slides over. How do i get the chuck off to get to it,...

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Open the jaws of the chuck all the way open. Inside the chuck you will see a slotted screw. Use a large flat head screw driver and remove screw. It will have left handed threads.

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I have a Black & Decker 18V cordless drill with keyless chuck. The spot where the drill bit fits is in the open position stuck and won't turn in either position. What am I missing how to unlock it?

Look at the three jaws in the chuck,if on is further out than the others the you need to tap ti back into place with a small punch and a hammer.If this does not work then you need to replace the chuck,remove the screw at the bottom of the chuck[where you put the bit],then you will need to to clamp vise grip on the chuck and with it pointed away from you hit the vise grips with a hammer with a sharp blow downward and it should come off.Hope this helps.

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Nov 09, 2009 | Drills

1 Answer

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I work in a large shop and I do most of the tool repair.  We do use DeWalt cordless guns so I have done this before.   I change these as often as they break at work.  About every 4 months the teeth fall out of a chuck and I replace the chuck with a new one.       To remove this chuck you should  use a heavy duty metric allen key and a good vise. The trick is to remove the small metric reverse thread screw. It is between 3 and 5mm.  Place the "L" of the allen key firmly in the vise with the long end pointing straight up.  Open the chuck all the way. Using a fully charged battery, place the gun in low (1st gear) and put the direction of the gun in FWD (as if you were driving a screw in), set the clutch to the drill setting (maximum torque) and drive that screw out of the chuck.  If the battery is not strong enough to drive the reverse thread screw out you will have to help it out.  Rotate the rear of the chuck clockwise and hopefully the screw will come out.  If that is not enough torque, I find the use of a small strap clamp helpful to turn the chuck against the reverse screw. Hope this helps.  Best Results!  Michael Mittelsdorf

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