Restoring a 4 Jaw Chuck: Disassembly, Cleaning and Reassembly
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- čas přidán 6. 09. 2024
- How to take a 4 Jaw Chuck apart, clean it properly, and put it back together for use on a metal lathe.
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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.
Should be worrying more about his waist line if he was being health conscious ?
Seriously, I'm a doc, and I still dont always wear gloves, butI wish I did.....it does absorb through your skin, and it cant be good. Remember Bob Ross? Died in early fifties of lymphoma, and was always getting such pleasure from "beating" his brush after washing them with odorless mineral spirits? Makes you wonder if it was related.
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.
Yup, that's why as he put the 1st jaw in, it was tight.
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.
I also have been covered by different chemicals and solvents in my youth. Tri-clorinated solvents being one of them.
I was put in the position of safety team member as part of my duties at the laboratory I worked at. When I worked for Toshiba Machine I was required to ensure and notify customers if they were against the country/state regulations regardless of which country I was in.
☭california has gone way beyond what would be reasonable. If you read the MSDS some safer chemicals are outlawed while more hazardous chemicals get the A OK. They also made the petroleum companies put MTBE in the gasoline. And made them continue for years even after it was shown to cause cancer and reproductive problems. During the time after the hazards were known they still tried to force the rest of the United States to use it.
Safety should never be made fun of, but I will not give a state total control of me.
@ 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 : )
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.
"Mommy Mommy why are you hands so soft?" -----"Well dear, it's because daddy does all the washing up!"
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.
Erik.....If I am going to have "13 years of continuous exposure", I better get to soaking. I don't believe I have 13 years left !!
So does drinking alcohol...also if you soaked for 13 years in Palmolive...
Always a pleasure to watch and learn from your videos Mr.Rucker,thank you.
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!
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
Now it's decent for Sunday BBQ and some turning ✌👍
Save your fingers with a chunk of an old tire as a backer to polish those objects that give sharp edges or interrupted areas.
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.
Not quite true my friend. I live in ☭california also. As a private citizen you are allowed to have many chemicals which industries are not allowed to have, not all but many. Sometimes it goes the other way also.
I travel to Arizona to visit my son and his gal. I bring home a gallon or so of mineral spirits, paint thinner and methyl ethyl keytone, (MEK). The first time I brought just one gallon across as I do not like throwing money away. I asked the ☭california border guards. They said it was legal for nonindustrial and I could bring in reasonable amounts "as long as I did not sell them".
Still want to see that tachometer get fixed or replaced. That bouncing needle would eventually make me crazy.
It's bad enough watching it in the corner of the video, yet alone while you are using the machine. It is probably an easy fix as well. Make sure your grounds are good, but you can also dampen the signal from the sender with a series 10K resister. Worth a try, and it would take a fraction of the time spent cleaning the chuck.
@@TrevorDennis100 If I remember right, it's a fully mechanical gauge.
It is mechanical, it's like a square drive type deal, I think the clutch abrasive was worn in it if I remember correctly from the video he has on it,
Duct tape on the glass will fix it up.
@@darrellbedford9925 LOL! The classic "check engine" light fix.
If it weren't for the fact that knowing the RPMs is kind of important in most cases, I'd roll with that.
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.
That's an impressive evaporust tank. you need a drip table in it you can set your bucket on 😊
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
Damn! That is a lot of Evaporust! Would be cool to soak car doors and fenders in to remove the rust :D.
Hey Keith _ The chuck looks much better. Evapo-rust - Great product!
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 ... :)
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!
Would you concider spraying a light coat WD-40 on the chuck to prevent rust, if you don't use it everyday?
Adam over at abom79 does this religiously. WD40 is a great way of keeping the rust away.
@@Bobbywolf64 Adam has said he does it to displace the water in the coolant after he's done using the machine.
@@flat-earther ....WD40 contains >50% Stoddard Solvent (trade name: Varsol but basically mineral spirts). Mix that with 25% mineral oil. Add some dryers and you have WD40.
I have found that during machining a fine mist of oil applies itself to my lathe and all metal components. Never had a problem with rust. I do run heat by wood and AC in my toolroom which keeps humidity down also.
Toolroom is where I reload ammunition, make fishing lures, make furniture and operate my equipment. I'm an old retired guy. Just gotta stay busy.
WD40 was invented to keep moisture out of the Apollo modules. My dad worked on those projects. Check out teflon when you get a chance. It does leave an awful tarry residue behind. It is not and never was a solvent or lubricating oil.
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.
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.
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.
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
Chuck's chuck
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.
I was sort of expecting to see the jaws marked to go back into the same recesses they came out of.
Looked it up and apparently they still make chucks Keith for something like 150 years
abom recently got one (think his 6 jaw)
Nice works 4 jaws are great. Lance & Patrick.
As a CA resident, I loved the CA jabs. It probably has been shown that watching CZcams videos causes cancer and birth defects.
electromagnetic radiation from appliances does 🤣
Keep em coming’
Nice video Keith. Good way for me to start the day.
Nice chuck. Thank you for sharing. God Bless.
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?
spin-dry cycle, I love it!
Chuck sent you a Chuck
Wow... after a long and sweaty day you can just dive into that container...
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!
Thank god you are around to remind him. I bet he had no idea.
A beautiful tool room lathe.
THANK YOU...for sharing. Enjoyed.
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.
Oh. What parts cleaner do you recommend?
Paul
Ah, a spin dryer! That's a very quick way to be able to change a chuck as well. BobUK
I expect you will loose the screws also to get all dirt behind it all anyway nice chuck and jog thanks for sharing.
Nice chuck from Chuck...
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 per www.orisonmarketing.com/evapo-rust.html FAQ
When not in use, it is best to cover (but not airtight) to keep out bugs. If any of the bath evaporates, simply add fresh water.
See that big black square piece of plywood that tipped up? Yeah.....
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?
Watching this, I was thinking this is a case where Randy Richard's Machine Shop Hack would really be very useful.
"Palmolive hands" ha ha You lost those long ago.
🤣
Abom wears gloves frequently but he just got married. Lol
Had a GF that really, really, really disliked it when I would not use gloves when I worked because of how abrasive calluses can be.
@@j-man72b72 lol
What exactly si Evapo-Rust? It looks like phosphoric acid mixed with some kind of detergent...
it is water, chelating agent, and detergent. Iron chelation is like this reaction diagram FeO(s) + n HL (chelating comp) [FeLn] + H2O + (n-2) H+
The California ribbing is not becoming. You're better than that. Glass houses and all that.
I know how to tear down a lathe chuck...but I have not been tearing down the Kurt mill vise and cleaning it.
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
meg.....Fun Fact: WD40 is > 50% Stoddard Solvent (Varsol as a trade name). Mix that with 25% mineral oil and you basically have WD40!
Them screws ok in their spinning like that
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.
That first jaw was still pretty tight 🤔
Chuck sent you a chuck?
Aren’t all jaws numbered
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?
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!!!
CHUCKS CHUCK lol 😂
So you got a Chuck from Chuck
i say all the time "everything is known to the state of California to cause cancer) 🤣
So far as I know they haven't listed the California Legislature yet, just the building it occupies.
You might be right my good man. I do know that excessive years alive tends to cause cancer.
👍🇦🇺
A shame to hear a scientist disparaging science just for the yuks.
Chuck's chuck... lol.
hahahahaha!!!!!!!! PALMOLIVE Hands...love it .. haven't heard that in a minute...BTW !!! Real Men Don't need no gloves !!!hahaha
If that were only the case Jimmy.
A lot depends on individual reactions to chemicals and what the actual chemical is.
Keith is a big boy and makes his own decisions however some stuff you just want to avoid and gloves are helpful.
Industrial dermatitis is a bitch and best avoided it just trashes your hands and opens splits up to infection etc.
Still hes looks like hes still got all his fingers and no unsightly patches of red weeping skin, so it all works for him.
I wonder if California has worked out birth is the leading cause of death yet...
Cheers
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.
R G....Coffee has become groundless?? Who knew?
Yes I think putting a cancer warning on everything does as much good as putting it on nothing lol
You mean that the orange alert at the airports means nothing at all? Coarse I am retired now but the constant state of emergency removed all emergency from each flight.
Cepting the one where a man was trying to sell me instructions on bomb making. The security folk went and had a discussion with him. Most who spent time in the service of our country already have the information. I also believe he was a plant by the DHS.
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.
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.:)
california ZING!
hahaha
Safe. For now.
Demography is destiny, as California unfortunately showed us.