Just a note on the solvents Keith, the issue isn’t soft hands. These lipid soluble materials literally dissolve into your blood and lymph, travel into every major internal organ, especially your liver, and do hosts of different types of damage. Long nitriles are a cheap prevention.

Always a pleasure to watch and learn from your videos Mr.Rucker,thank you.

Nice video Keith. Good way for me to start the day.

Hey Keith _ The chuck looks much better. Evapo-rust - Great product!

Nice chuck that cleaned up well. Cushman is still one of the major manufacturers of high-quality chucks worldwide. They have a wide variety on their website.

I've got 7 peices of machinery from 1890s to 1940s and 50s alot of rust, going to try evapo-rust, just subscribed to your channel, great info thanks.

THANK YOU...for sharing. Enjoyed.

Nice works 4 jaws are great. Lance & Patrick.

I think #1 jaw goes beside the label in the row with the numbers and then they proceed around clockwise. The numbers just indicate how they were fitted originally and were likely matched so the tolerances between groove in chuck and jaw gave the best fit.

spin-dry cycle, I love it!

"Mommy Mommy why are you hands so soft?" -----"Well dear, it's because daddy does all the washing up!"

Keep em coming’

Nice chuck. Thank you for sharing. God Bless.

Still want to see that tachometer get fixed or replaced. That bouncing needle would eventually make me crazy.

A beautiful tool room lathe.

Good concise video. I so appreciated your brief comment on gloves, & Calif. vs. Georgia. I feel the same way. Keep up the good work. I enjoy all your videos. Bob, Jacksonville, FL

That's an impressive evaporust tank. you need a drip table in it you can set your bucket on 😊

Looks like you could use a 'drain pan' in your 'sink' of Evaporust kind of like how a kitchen sink and dish drainer might be set up. Good idea to localize parts in the large vat!

Hey Mr. Rucker, I live in California and work in a hardware store, I can't tell you how many products we had to stop selling over the past few years. Name any kind of solvent on the market, it has to be California VOC compliant or it's not allowed in the state. A lot of companies had to reformulate their products to sell here. Even some LED light bulbs are restricted, it just makes no sense to me. Thank you for all your hard work and dedication you put into your channel, it's a great way to enjoy a hot cup of coffee and relax and unwind.

Kept waiting for you to refer to it as Chuck's chuck, haha. Cushman does seem to be in business still, they have a website at least.

Now it's decent for Sunday BBQ and some turning ✌👍

Nice chuck from Chuck...

Hi Keith that was a nice tutorial. I have to take my wood chucks apart what lube would you recommend I use or run them dry? I am in rn UK.

A quick Wikipedia lookup: "White spirit is mainly classed as an irritant. It has a fairly low acute toxicity[...]", but also: "Exposure to an average white spirit concentration of 240 mg/m3 (40 ppm) for more than 13 years (of continuous exposure time) can lead to chronic central nervous system effects. Similar long-term studies have been made in which some of the observed effects included memory impairment, poor concentration, increased irritability etc. White spirit is implicated in the development of chronic toxic encephalopathy (CTE) among house painters. In severe cases CTE may lead to disability and personality changes." Conclusion, if you repaint a room in your house every couple of years, you're probably fine without the gloves. If you are a professional painter, you really want to be careful. I'd think a machinist is somewhere in between an occasional user and daily user.

@ 4:15 - "I think you can unscrew them from the bottom somehow..." - hey, Keith, a pro tip: there are four screws with a flat screwdriver slot in them on the bottom, you can see them @ 2:01 - 2:10. And they go into them jaws driving screws, into that threadless part - and that's how they hold those jaw screws in place ;-) Seriously though, I'm sometimes surprossed at various shortcuts you take. Taking those jaw screws would take no time at all, and would greatly facilitate the cleaning and drying job. Also, when cleaning threads it's better to ryn the brush aling thread grooves, not along the screw or bolt itself. (Just a friendly advice : )

Once you have cleaned and degreased everything You can dip parts in to evaporust and let them dry because it is also an anti rust barrier that actually works well

Good video. I just did one of my four jaw chucks.I never did find a way to get the screws out so like you soaked them with the chuck. You must have received a loan from the bank to fill your Evaoprust tank.

Damn! That is a lot of Evaporust! Would be cool to soak car doors and fenders in to remove the rust :D.

Ah, a spin dryer! That's a very quick way to be able to change a chuck as well. BobUK

Wow. Us Ausralians are charged $93 AUD for 5 litres over here for Evaporust. Thats 1.32 US gallons for $63 USD. I saw it in your earlier videos but thats a pretty impressive soak tank.

Keith, you are a very well educated person. I am surprised that you take chemical safety so casually. I am a retired airline mechanic in California, in my younger day I took a bath in Jet A-50 another time I did the same with Skyrol 700 and I regularly worked with chlorinated solvents before the California proposition I did not think about the risks involved with their use, nor did my employer. I am not a safety Nazi but I get tired of people who should know better running down California regulations.

Save your fingers with a chunk of an old tire as a backer to polish those objects that give sharp edges or interrupted areas.

Hi. Thanks for the video. I’m in the process of cleaning two chucks. A three jaw and four jaw. I’m wondering about removing those four threaded rods beneath each key. Is that a hassle? I’m putting everything in my ultrasonic cleaner before the Evaporust. Paul

I have come in for a cuppa , got the jaws out and cleaned up but can’t get them back in! I think the heat of my hand has made the jaws expand!

Keith, thanks for sharing this bit of information. It is basic knowledge but there are always persons who do not know what to do with these. All that being said: 1. It would have been beneficial to remove the screws as well, but from experience, I know, that those screws can sit really hard. At least mine did. And they are not allen screws .... 2. Solvents can be really harmful. White spirits is probably one of the least toxic ones. However, one should not handle every solvent like that, for example Xylene is really nasty stuff and as it is used as paint mixer, it is quite often available in workshops. 3. Rotating chuck + bare hand is begging for injury. An intermediate piece of rubber or perhaps a wood block would mitigate some of that risk. Some Chinese chucks have razor sharp edges and those can wipe the skin from Your fingers in milliseconds. 4. Scotchbrite has grinding agent in it. This should be somehow removed after the Scotchbrightening process. And the speed indicator needle is still danciong ... :)

I expect you will loose the screws also to get all dirt behind it all anyway nice chuck and jog thanks for sharing.

Watching this, I was thinking this is a case where Randy Richard's Machine Shop Hack would really be very useful.

I see the rev counter on the lathe is not accurate yet!!!!! Still bouncing around at the higher revs!!! Great video as always. Well done Keith!

Could it be that some jaws are stiffer because they are not in the right slots? Even if slots are not numbered 1 is usually to the left of the label when viewed from the tailstock.

Wow... after a long and sweaty day you can just dive into that container...

I don't have a comment about the chuck, but i have a Niles bement pond lathe. Do you have a place to find info on this?

Right through this video I was worrying about whether the jaws could be reversible. The radii on the outer steps suggested that they would be, but kept thinking that the teeth had to be curved which would preclude them being reversed. I guess the teeth must be straight?

Would you concider spraying a light coat WD-40 on the chuck to prevent rust, if you don't use it everyday?

Oh. What parts cleaner do you recommend? Paul

Looked it up and apparently they still make chucks Keith for something like 150 years

What exactly si Evapo-Rust? It looks like phosphoric acid mixed with some kind of detergent...

Them screws ok in their spinning like that

Just a thought - wouldn't it make sense to close the top on the EvapoRust tank to slow down evaporation? Thanks for your uploads.

As a CA resident, I loved the CA jabs. It probably has been shown that watching KZfaq videos causes cancer and birth defects.

Chuck's chuck

"Palmolive hands" ha ha You lost those long ago.

Was waiting on this video, I was wondering what happing with the metal furnace you made, You put blanket on it to never be seen again? Did someone buy it?

I know how to tear down a lathe chuck...but I have not been tearing down the Kurt mill vise and cleaning it.

CHUCKS CHUCK lol 😂

Abom wears gloves frequently but he just got married. Lol

Chuck sent you a Chuck

As a matter if fact, mineral spirits are not allowed to be sold in Los Angeles County. It's very frustrating here in the cancer state. The "paint thinner" sold at HomeDepot, Lows, etc is an acetone based product here.

👍🇦🇺

Chuck sent you a chuck?

So you got a Chuck from Chuck

That first jaw was still pretty tight 🤔

hahahahaha!!!!!!!! PALMOLIVE Hands...love it .. haven't heard that in a minute...BTW !!! Real Men Don't need no gloves !!!hahaha

Chuck's chuck... lol.

Aren’t all jaws numbered

i say all the time "everything is known to the state of California to cause cancer) 🤣

Trust me, if mineral spirits is poison, I would be dead by now but I am going on 67 and have used it for most of my life cleaning greasy parts on heavy machinery... Never ever used gloves.. We use to clean brake parts and hubs of Galion cranes with the bottom of a 55 gallon barrel full of varsol (Standard Oil Trade Name For Mineral Spirits) and a suction sprayer.. In winter, if the varsol was fresh, we would pour a quart of type A in it to keep from drying the hands so badly lol....We even used leaded gasoline if we didn't have mineral spirits in a pinch but that is not good because of the fire hazard....Still here.. Mike in Louisiana

The California ribbing is not becoming. You're better than that. Glass houses and all that.

Yes I think putting a cancer warning on everything does as much good as putting it on nothing lol

Title...'Restoring a 4 Jaw Chuck: Disassembly, Cleaning and Reassembly'..... not worth taking out the screws.. ffs Keith for all the time it would take .... do the job as advertised.:)

A shame to hear a scientist disparaging science just for the yuks.

Keith, do you find stinking amazing, as I do, that "things" only have been found to cause cancer and birth defects in that "glorious" state of CA. God, am I glad that my son/family moved!!!

He nearly had a catch with his finger in a chuck. Please don't do this people. If you do not know how dangerous a lathe is go watch a video on eye bleach of the russian dude being flush into pieces because he got pulled into the machine. The machine he is working on has multiple hp and would maim or kill you, please be careful around heavy machinery and use common sense.

Everything is known to the State of California to cause cancer and birth defects. They added coffee last year but there was a backlash from the designer coffee shops and the Fed got involved and said it was groundless so you can come here and drink coffee without the fear of protests. Mineral spirits have become way to expensive so I use a quantity of kerosine which doesn’t work well by itself but i top it with 2 or 3 galleons of #2 diesel. This is a more affordable cocktail.

california ZING! hahaha

Safe. For now. Demography is destiny, as California unfortunately showed us.