Just picked up this old makita drill

[GerGa]

Hey guys,
I just got this old Makita 6402X power drill at a garage sale.

It looks really good but I'm having trouble with the chuck. It's a keyless chuck and the jaws are stuck retracted all the way inside. Any ideas on how to get it unstuck?
Got this thing for free at a tag sale.
Thanks

 

[RedRabbit]

your pics aren't working.

 

[GerGa]

Pictures fixed

 

[Strouty]

It looks like it has two flats, if so could you grab it with a wrench or pliers and spin the drill? I would put some penetrating oil to it as well.

 

[jakemac]

I've had similar issues with drill chucks in the past. My solution -

a little penetrating oil on the jaw channels, wiggle each jaw with a thin screwdriver to get the oil behind the jaw, point the chuck towards the ground, and then give the tip of the chuck a whack with a plastic or rubber hammer and hope that gravity is your friend.

 

[wyo george]

Very nice score, I love the older Mikita tools


Sent from my iPhone using Tapatalk

 

[The Cobbler]

I had similar chuck in a hammer drill ( MAkita) ended up replacing it with a regular chuck...

 

[bonneyman]

Nice old Mak!

What's the steel metal clip along the top? Is that for hanging it off one's belt?

 

[RedRabbit]

That's beautiful. Beats all the ones i've seen that are rusted throughout. I agree Jakemac to use some penetrating oil but try Strouty's method to if Jakenmac's doesn't work. Good luck and keep us posted.

 

[G_P]

Penetrating oil and some light taps with a non marring hammer should free that up.

 

[nine4gmc]

I've had similar issues with drill chucks in the past. My solution -

a little penetrating oil on the jaw channels, wiggle each jaw with a thin screwdriver to get the oil behind the jaw, point the chuck towards the ground, and then give the tip of the chuck a whack with a plastic or rubber hammer and hope that gravity is your friend.

What Jake said

 

[Mohawk Dave]

I absolutely love using TRI FLOW on all my chucks. The Tri Flow will clean out old gunk and those suckers free spin like nobodies business now.

You can find Tri Flow at bicycle shops for sure, if not on line for cheaper.

 

[GerGa]

Thanks everyone. Tried a little penetrating oil on the jaws and a few light hits with my new made in U.S.A. dead blow hammer that I also bought at the garage sale . Finally plugging it in and running it in forward with an extra firm grip on the chuck was what got it free.

The garage sale was awesome. It was an old carpenter's house. I'm looking at moving out soon and got a bunch of different tools that I'd want to keep around the garage. They all are made in America! Some don't even need to say America, they just say the town and state! There were a lot of tools that were never even used. I got a pair of old tin snips that I had to rip the cardboard packaging off!

My dad has a Makita DP3720 made in 86' that has gotten a lot of use. It sounds a little bit louder than it used to be and a little "rough". I wonder if it is still as strong as it once was. There is a little play in the gears when you grab the shaft and turn it back & forth, but it's been like that since I can remember. Is there any way I could freshen it up a bit? Brushes & commutator worn? Or bearings?
Dad's:

My drill however is near perfect and has seen very little use. it's actually made in 1990; I thought it was much older than that.

What's the steel metal clip along the top? Is that for hanging it off one's belt?

bonnyman, I was wondering what the clip is, too. I always thought it was for holding the end of your cord for when you wrap up your cord but it doesn't really fit under it.

I had similar chuck in a hammer drill ( MAkita) ended up replacing it with a regular chuck...

Was it tough to do? How did you know what would fit?