I have an old Makita cordless drill that I've had for about 15 years.
It has quit working and I suspect the brushes.
I have taken all the screws out of the housing but it looks like I
have to remove the chuck to get it apart.
How do I remove the chuck?

Engineman

"engineman" wrote in message
...
I have an old Makita cordless drill that I've had for about 15 years.
It has quit working and I suspect the brushes.
I have taken all the screws out of the housing but it looks like I
have to remove the chuck to get it apart.
How do I remove the chuck?

Engineman


The last cordless drill chuck I removed had a left hand threaded hex socket
screw accessed via the chuck (ie the hole where the bit normally goes).
After this was removed the chuck would just screw off the drive shaft
(normal right hand thread if I remember correctly).

engineman wrote:

I have an old Makita cordless drill that I've had for about 15 years.
It has quit working and I suspect the brushes.
I have taken all the screws out of the housing but it looks like I
have to remove the chuck to get it apart.
How do I remove the chuck?


Left hand thread, if it's reversible. If not, look at the Jacobs
website.

"Dennis" wrote in message
. au...

"engineman" wrote in message
...
I have an old Makita cordless drill that I've had for about 15 years.
It has quit working and I suspect the brushes.
I have taken all the screws out of the housing but it looks like I
have to remove the chuck to get it apart.
How do I remove the chuck?

Engineman


The last cordless drill chuck I removed had a left hand threaded hex
socket screw accessed via the chuck (ie the hole where the bit normally
goes). After this was removed the chuck would just screw off the drive
shaft (normal right hand thread if I remember correctly).


Someone's done it before & made a nice web page about it:

http://home.comcast.net/~jaswensen/m...ill/drill.html

Aint' the internet great!

On 2010-08-12, engineman wrote:
I have an old Makita cordless drill that I've had for about 15 years.
It has quit working and I suspect the brushes.
I have taken all the screws out of the housing but it looks like I
have to remove the chuck to get it apart.
How do I remove the chuck?

Is it single direction (CW only) or reversible?

If single direction -- just put the chuck key in a hole and bash
it with a chunk of 2x4 to rotate the chuck the direction the motor
normally rotates it. This will unscrew it.

If reversible, you will want to open the chuck fully and check
for a screw head in the center. If you find one, it is probably a
*left-hand* screw, and you want to unscrew it (clockwise) before the
bashing as before to unscrew the chuck. Remember to replace the screw
when you are done -- and be careful to not lose it, unless you want to
find out how easy it is to get metric left-hand threaded screws locally. :-)

Good luck,
DoN.

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Thanks DoN, you always seem to come up with the best answer to a
problem.
However I'm still up the creek.
My drill is reversible with a keyless chuck.
I looked down inside the chuck as you suggested and I see a screw with
a 3 MM Allen socket in the head.
I put an Allen wrench in it and cranked on as hard as I thought the
wrench would take but it would not come loose. I don't want to break
the wrench off in it and if I drill it out It will be difficult to get
a replacement as you say.
I would be tempted to buy another drill but I have already invested
$40.00 in a new battery because I first thought that was the problem.
Any ideas?

On Aug 12, 10:00*pm, "DoN. Nichols" wrote:
On 2010-08-12, engineman wrote:

I have an old Makita cordless drill that I've had for about 15 years.
It has quit working and I suspect the brushes.
I have taken all the screws out of the housing but it looks like I
have to remove the chuck to get it apart.
How do I remove the chuck?

* * * * Is it single direction (CW only) or reversible?

* * * * If single direction -- just put the chuck key in a hole and bash
it with a chunk of 2x4 to rotate the chuck the direction the motor
normally rotates it. *This will unscrew it.

* * * * If reversible, you will want to open the chuck fully and check
for a screw head in the center. *If you find one, it is probably a
*left-hand* screw, and you want to unscrew it (clockwise) before the
bashing as before to unscrew the chuck. *Remember to replace the screw
when you are done -- and be careful to not lose it, unless you want to
find out how easy it is to get metric left-hand threaded screws locally. :-)

* * * * Good luck,
* * * * * * * * DoN.

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* * * * * * * * * Remove oil spill source from e-mail
*Email: * | Voice (all times): (703) 938-4564
* * * * * (too) near Washington D.C. |http://www.d-and-d.com/dnichols/DoN.html
* * * * * *--- Black Holes are where God is dividing by zero ---

On 8/13/2010 11:52 AM, engineman wrote:
Thanks DoN, you always seem to come up with the best answer to a
problem.
However I'm still up the creek.

(..)

Any ideas?

Keeping in mind that it is a left hand thread,
I normally hold the wrench in the central
machine screw and lay the length of the
wrench against a trusty bench top.

Then I whack the far end of the wrench
a couple times with a Fine Adjustment Tool.

http://www.harborfreight.com/4-lb-sl...mer-98258.html

Works for me every time.

(Don't tell anyone I do stuff like that.)

--Winston

On 2010-08-14, engineman wrote:
Yes, I remembered to turn to the left.

O.K.

The inner screw is so tight that I feel the wrench winding up and
getting ready to twist off. Remember it's only 3 MM.
I can't heat it without damaging the drill, what else can I try?

Well ... it *might* be a right-hand screw on your model.

Can you download the manual and exploded drawings for it from
the Makita site? Better to look it up before applying all the force you
can get. You might start with the URL contained in the web page which I
pointed you to before going back down to the shop.

* * * * http://home.comcast.net/~jaswensen/machines/drill/drill.html

Good Luck,
DoN.

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Email: | Voice (all times): (703) 938-4564
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engineman wrote:

Yes, I remembered to turn to the left.
The inner screw is so tight that I feel the wrench winding up and
getting ready to twist off. Remember it's only 3 MM.
I can't heat it without damaging the drill, what else can I try?


Penetrating oil.