Machining out SEIZED Head Gland | CAT 785 Dump Truck Cylinder
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- เผยแพร่เมื่อ 29 ก.ค. 2021
- Todays job in our machining shop we have a Caterpillar 785 Dump Truck outer hoist cylinder that has a seized head gland. We need to try and save the $15K hollow chrome tube by machining out the seized head gland. The cylinder tube also has an internal buttress thread for the head gland that has been damaged by rust and we will do thread chasing on the lathe to repair the buttress thread.
In this video we are using:
- TM-26120G Centre Lathe
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Hey viewers thanks for watching todays video from our machining shop! Destroy a $3K head gland to save a $15K cylinder tube...hold my beer 😂Hope you enjoyed it 😎👍
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As ever interesting and informative, today I learnt what a buttress thread is.
Great way to start a Friday, the latest from CEE. I don't know why I find your channel so enjoyable, but I do. It's one of my favorites. If possible, an occasionally occuring on-camera appearance by The Giggler would be awesome.
$3K + $15K and they couldn't even spend a few cents on an extra o ring - CAT really know how to extract money from their customers!
That's not rust. It's organic Locktite. Holds better and is environment friendly ...
Well, that's a seized bolt removal in steroids. Had some good time watching this. Thanks!
As a retired Engineer with 50 years' welding and machine shop experience, I'm VERY impressed by your attitude toward your work and the care you take in executing it. With your approach to work and family, I'm sure you'll go far!!! Thanks for brightening my outlook on the younger generation. Wish we had more of you! And I love Karen and Safety Engineer Homey!!!! Keep up the great work, Kurtis!!!!
I have 62 years experience kid.
Kurtis is a great example of how any craftsman of their work should be. Hats off 100% to a professional.
Aber auch sehr eitel und ignorant. Ist wohl bei vielen so die gut in etwas sind.
@sascha5668 Yeppirs,
{soapbox_speech_On}
and, with all due respect, comments regarding ignorance are typically envious and/or regretful in nature. For instance, I personally regret failing to complete the due diligence required for submission of the 6 additional applications after receiving a first patent in Thermodynamics. There were also references to ignorance on my part regarding " failure to commit " and " he's about himself and has no clue" when, in fact, transitioning to single parenthood of 4 was the only priority. Was mastery of my craft discarded? -- absolutely not. Is Kurtis a master in his craft? -- absolutely. His mastery in the field of applied metallurgy is like none other and I'd venture that in the end, he will have forgotten more than we "non-ignorants" could possibly learn. I dont know or, quite frankly, care . What i do know is that Talent is what it is, so let's agree that envy and regret have no place here and celebrate their successes. {soapbox_speech_Off}
As a corporate drone that sits at a desk in front of a computer screen day after day after day, even I have a feeling of accomplishment when you pack up your finished work and wheel it out of your shop at the end of the day. Many of us are living vicariously through you!
0:41 I really do appreciate this shot. Knowing where the part comes from and how it’s used (visually) compliments the repairing process. Well done & thank you.
Awesome thanks for watching and the feedback
Agreed, knowing what it was other than just "a big metal tube" really put it into perspective how important this part is.
@@CuttingEdgeEngineering you done a great job on that most people wouldn't have figured out how to fix that
Explains how the crud and water got in there hanging out in the underbelly of the truck where the tires can splash mud at it.
Look how far this community has come. Rewatching some of these vids in 2024. Only 240k subs to 1M!
I’ve been a fitter in mining all my life, never seen anyone recover one of those tubes. You’re a clever bugger. Good job 👍
Turning something into swarf that's picked up or jammed on is just the normal for a machinist. Lucky had something to measure 1st to get him close most of time its guess work
Hey John thanks mate 😎👍
Bravo ,felicitări.
So any water in the oil would sink to the bottom. Hard to stop that from doing damage. I'm going to change my oil now.
I see lots of people leave comments of how impressed they are. Having said that, most of them really dont know what it really takes to do something like this and not f it up. I've had my fair share of challenging projects and I am very aware of what it takes.
What I'm saying is damn mate, you are good. Something else I notice is you rarely ever seem to not know about how to do the task. Knowledgeable guy. Not many left.
thanks mate respect to you and appreciate it!
During WW2 my dad was stationed at various places in your country and had great things to say about your people. He said they truly did their best to make him feel like he was home.
He's a special dog, with two very special owners. ❤
Some serious skill involved in that recovery mate. Hats off.
Cheers mate thanks for watching
Nice save
I really appreciate that you guys always list the tooling and speeds. Love those details!
Awesome thanks for the feedback and for watching
I feel like every time someone has a piece of equipment break and needs it fixed this is the guy that everybody says "I know a guy that can fix that!"
Hey, that means hello in the south eastern US.l worked in a machine shop in the 80's. I rebuilt cylinder heads, turned brake rotors, and drums. Really enjoyed the work. I enjoy your videos emencely. Thumbs up.
Cheers to Karen for dealing with the special dog and the very special man child LOL
She's going to log into her YT account and give this comment a LIKE 🤣🤣🤣
@@CuttingEdgeEngineering who is the most "special" homeless or kurtis?
Well I grew up with Australians Kurtis is the rough and tough tumble type. As far as the dog that dog is just awesome. Karen just has this infectious laughter every time I hear it I practically break up laughing and smiling Kurtis is blessed to have you and I think you're blessed to have him he would do anything for you God bless all three of you
Hey, it's not easy having a Karen film you all day just hoping you do something she can call your manager about.
@@enlightendbel Yeah but Kurtis needs this Karen she makes him laugh when he is like all serious mode and its good for his heart :)
Cheers for actually taking time to reply to your viewers 👍🏻
Our viewers take the time to watch and comment and we appreciate it
Who needs Netflix 26 minutes well spent great job
Why do i leave work and go home and watch videos of someone doing the same things i do every day at work? I guess i just enjoy it that much lol.
Cleaning those threads was satisfying 😌
Thanks for watching
It’s always such fun watching someone else do all the hard work 😁
Definitely 😂👍
I'm not scared of hard work, I can watch it all day.
" End dump "
NEVER ceases to PLEASE me, when they break.
You're a legend Kurtis - I love the way you show the equipment in use and explain the problem and cause, do the machining to fix it, and add the design improvements needed to avoid the damage in the first place. It's what makes you a great machinist and elevates your channel to premium for home hobbyists like me! Thanks so much for sharing!
Two great moments! When you peeled the old gland out, and then when you screwed the new one in! Simply great. Thanks.
Karen said those would be satisfying moments 🤣👌
@@CuttingEdgeEngineering Did she specified for whom...? ;-)
Yes the Gland fit well after the nut was removed.
How good, just get home, open a smooth chilled amber beverage and Kurtis, Homeless and the Giggler have my chill out time covered! Insert gland joke *here* ;)
Priorities sorted nicely 🤣👍
Your pituitary gland appears to be working overtime perhaps some xxxx might not be a bad idea ?
I admire your work
Impressive save on that cylinder Kurtis. The way you turned it down to remove the damaged part then recovered those rusted threads turned out amazingly well. Also I can’t help noticing that you seem to be the master at finding the point of balance of pretty much everything you put a sling around. Either you have a terrific eye or you measure and test off camera! Keep up the great work and I’ll look forward to the next job.
Showing brilliant skills again Kurtis…a joy to watch!
I think Karen’s camera skills has a lot to do with making you look so good bud 😂🤙
She agrees and reminds me weekly 😂 thanks for watching mate
You wouldn't perchance be forgetting the contributions of a certain Security Officer, now would you?
@@InservioLetum of course, the security officer is first class in his role and gets plenty extras from his many followers 🤣
Good thing that forklift has headlights, since the job always seems to come out of the shop at night😂 Another good Friday night video guys. Thank you.
These machining and mechanical channels are so popular. A lot of people, whether they're mechanically inclined or not, have a natural, healthy interest in how things work, are built, or repaired. Humans are just naturally curious, and these types of channels are perfect for satisfying those curiosities.
Love the extended bloopers :)))))))))
Customer needs to pack those threads FULLL of grease
Me too! funny shit!!!
Was going to say, ya needed more coffee for that intro chat.
@Louis669, aside from adding additional "O" rings as suggested by Kurtis (O ring is a generic term, I would has spec'd an "X" ring) threads should have been packed with grease as you suggested. Or additional "O" rings AND grease.
@@MaxCruise73 add a zerk and a channel to squeeze threw threads; a modern gun would squeeze some grease threw as regular maintenance
@@lahoozer6694 Solutions. There are always ways to prevent future un-necessary repairs in the future.
Mate, you do some absolutely amazing repair work on all the beat up, damaged parts that come into your shop! I was in industrial maintenance for over 30 years and it would have been a pleasure to have worked with you.
Absolutely amazed that you were able to chase those threads as well as they ended up. Well done!
Hey Gary thanks mate
High pucker factor when working with rusted $15K parts!
Pretty delicate workmanship recutting that thread. Hats off to you! It's a joy watching your professional work.
Your ideas for rust prevention are spot on. CAT began cutting corners when they retired foldover locks.
Give Homeless a pat and a Good Boy from my cat and me.
It's keeping me busy so can't complain 🤣👍 thanks for watching mate
Humancattoy lol. You'd also be it's butler in Korea.
I still love the fact that you show WHERE the parts are located on the original machine. And, as always, FINE work. Getting those threads lined up and cleaned out was master work.
Amazing how accurate you can mill. When I saw you peal the metal off the thread without causing further damage to the thread beneath it I was astounded. So glad I discovered you twos channel.
The trick is, to engage the lead screw, on the proper thread pitch, run the tool into the bore, bring the tool close to the thread and then, using the cross slide, move the point of the tool as close to the front 90° portion of the thread. Tricky little beggar but once that is aligned, job's a good un.
Since a thread only works on the lands portion of the threadform, you don't have to be that accurate on how deep you go, or how close the peak of the thread is to the outside diameter of the part being fitted. That said, it is the mark of a good turner, if there is a bit of interference between the two...
There is a brilliant booklet knocking around on eBay or Amazon, the Zeus booklet. Worth its weight in gold but a lot cheaper. It will give you the pitch, tool point angle and the limits and fit that you need to aim for..
@@petemoore5104 I was surprised you don't have videos of this kind of stuff on your channel.
Thank you for everything y’all do to bring us these videos. I really appreciate it!!!!
Brilliant timing. First coffee break of the day and CEE sneakily provides the entertainment for said break. Now I have hope for this Friday.
Cheers, gang - and have a brilliant weekend!
Nice timing there mate enjoy the vid
25 min is a long coffee break.
@@Nixtutru Exactly what I was going to say.. must work a Gov job :-)
I love trying to see things the way you do. I fail a lot. But your diagnostics around fail points on the work just fascinate me. I see a scratch, you see a years worth of damage. Fantastic.. Thank guys..
Thanks for watching mate always interesting how viewers see it
I began my machinist's career over 50 years ago, and was a highly successful tool and die make and tool designer, but I would never have thought I could successfully dial in and time a work-piece to chase/clean up a buttress thread like shown in this video. MY COMPLIMENTS.
I thoroughly enjoy your videos, especially the ones where you’re taking an old part and reconditioning it making it like new again👍🇺🇸
Great video. One thing I can add from dealing with other manufacturers - they tend to know about defects like the missing O ring. They just tend not to care because that means they'll be selling replacement parts.
Yeah this is true
9AM every friday Im off from work I get the get out of bed signal from CEE, works damn well! Have a great weekend everyone!
Nice one mate enjoy the rest of your day 😎👍
i'm impressed! the lights on the forklift are functional!
😂 it's a keeper
It is,truly amazing that you could machine out the old part and recut the threads. Truly precision work!
Great job Kurtis and shout out to the wonderful giggle of camera lady, and of courze the CCE safety officer.
Cheers mate we see your comments and appreciate the weekly support
Every time I watch one of your vids I am SOO impressed with everything you (both) do. Your work (and your shop) is awesome, and the vid production is just perfect. The “bloopers” at the end tell the viewer just how much real life frustration you go through making this all happen. Thanks for letting us peer into your very interesting world. 🙏🏻
love the channel and all the practical info on inserts,wire types etc...great to see such practical repairs being done to such a high standard....enjoy these days being in control of your destiny.
When all is said and done........
Skill is the great equalizer.
Karen: Beautiful!
Kurtis: F*ck off!
Karen: **giggles**
Relationship goals right there.
Wot loverly peoples cheers Nz Bull shit Johnnie hello Goerge
Sounds a bit like our house:
Wife: I love you!
Me: yeah, yeah, whatever
Wife: awwww! So sweet
How great it is to tackle any project and fulfilling to see the end results. In an open door machine shop someone is always bringing in something different that needs done. And challenge you to do the impossible. You saved that company thousands. Put a nice profit in your pocket, and the return business doing the same thing will always keep your doors open. Very very well done. God Bless
Absolutely thanks for your support!
Chasing the threads made me anxious but I knew all would work out in the end. Thanks for putting in the effort to share another very well done job. Keep machining!
As an engineer, I particularly appreciate your design tips!
Just what I needed to lift my mood up after hearing about one of my favorite drummers passing, smashing work Nigel and misso Thornberry for her camera work
Glad the vid can be enjoyed, nothing a bit of head gland action can't fix 😎👍
I’m a diesel mechanic by trade, I have done heavy equipment repairs, but seeing the machining work and skills are impressive. I’m actually learning a lot just by watching how and why you do certain things in a specific order. Thanks for the tutorial, the dog is just a bonus.
Appreciate your analysis of how moisture getting to the threads would cause them to rust. It looks like there's enough surface area on the gland to add a groove for one of your suggested fixes (o-ring). Awesome videos - love the effort you put into them and your family, especially the four legged Safety Officer! :)
This was a different kind of video. I liked it. Usually you're doing some tearing down and then repair, this was more precision tear down. It was interesting to watch!
Hold your beer I was holding my breath as you were recutting the threads what a great job
Awesome engineering.
And I just saw something new. A cordless banding tool. Never seen one before and I run a logistics business. Will save loads of time!
i’ve used one of those and they’re a little heavy, but if they’re set up correctly, when you strap something down, it’s not going anywhere
Ive done repairs before (not on anything that big) and you Kurtis are a magician. Keep up the good work. Love your content. Youve taught me so very much.
Another reason why I wear my cap with pride. Brilliant stuff.
Cheers mate appreciate the support!
The "He's a special dog" got me laughing ^^ Great video as always 👍🏻
Thanks for watching 😎👍
*I always wince when you set tools down on the ways!*
They're probably hardened, so not so much of a big deal as it would be on an antique lathe.
Very cool how you could hear the out of round condition in the cut as it got thinner. I knew you were about to put the indicator back on the OD. You called it nicely done.
great job
Thanks for taking the time to make the video and share it
The clip where you show the new nut into a pile of swarth XD
😏😏😏
Now put it back together???
Suggestion: shot of the overhead crane (not the underhead one) as it's crane-ing around.
Every time I see it in action I turn green with envy.
A cheap version of a drone-shot in the workshop, I like the idea.
But then you don't get to buy a drone and learn how to fly it to do the same thing, and depending on if you want a drone, that could be a bad thing...
That chain fall hoist sounds so sweet! I wonder who makes it?
@@someoneelse7629 Not a drone-like shot. A shot from the human angle, looking up. I want to see the machine, especially it's track.
@@LesNewell you're not alone
Your work is as precise a ROLEX watch 👏👏👏👏👏
You do stunningly good work. I have been watching the channel for a while now and my jaw drops each time you use the victory tape on the part to take it out for pickup. Just fantastic mate.
Mate your nailing the intros now 🍺
Nah the missus is nailing the editing 😂
@@CuttingEdgeEngineering We can always live in hope that one day you will nail the intro. Karen will be so surprised that she will have to go have a cup of tea and a sit down. Even Homie will drop his favourite toy in shock.
well damn i see we've gone from dissing the maintainers to dissing the designers, a nice upgrade
I like to say it how it is
@@CuttingEdgeEngineering I don't pull punches when i find crappy designs either. I have always said, "Bring your big-boy shorts, it's gonna be real."
@@CuttingEdgeEngineering So do ! When I was in the machine business I had a reputation for speaking my mind. Sometimes it wasn't gladly received! Especially when I pointed out things the factory Engineers overlooked in their design and suggested improvements. German Engineers in particular don't appreciate that sort of thing! ;)
@@PhilG999 Yeah, well after losing not one, but two World Wars, and the poorer half losing The Cold War, frequently due to over-engineered equipment failing at the most inopportune time, they need to learn how to pull their head's back in and eat crow to learn important lessons. Ask them just how well interleaved road wheels on the Tiger I, Panther and King Tiger work with frozen Russian mud stuck between them? The answer is that they don't and here comes a swarm of Russian T-34's for a breakfast visit.
Nice too see you again with new things for me
I like that you explain what the part is and show it on the machine
Creates great value, keep it going
cmon mate, you know full well why they designed in a failure point like that...they get to sell another $15k tube or force the owner to get someone like us to go fishing inside of it. nice save there
Exacly, good old times where build better... lasted long time. Now everything breaks up in pieces.
My thoughts exactly! Designed for failure. Just like the way vehicles fall apart when the last payment is made, so they can sell another one.
same here..that's designed to fail
@@hedning003 ALL parts are designed to fail. It's not marketing strategy, it's good engineering. The 5 dollar part should fail before the 200 dollar part. The 10k dollar part should fail before the 200k dollar part. If they were to design that particular gland/joint/part to last for 100 years, then some other (more expensive) part would fail first.
There is absolutely no barrier to them building a machine that will last 100 or 1000 years. We just wouldn't want to pay for it. It would require us to shift our entire complaint structure from "Why can't they build something that lasts?" to "Why can't they build something that doesn't cost a gazillion dollars?".
Business understands all that. You buy a truck, you budget for it's upkeep/maintenance. In the case of these big earth moving and mining machines, you do the same thing. You budget for it's upkeep/maintenance. It's just that your budget is higher. All part of the cost of doing business.
@@CraigLumpyLemke well,as Kurtis says here..a rubberseal for 0.50$ woud keep water and dust out,so in this case it's definitly meant to just be expensive,to no use-more than selling a spare part..but i know what u r saying- entire world economy is based on stuff failing,so u have to buy new stuff and keep the wheels turning
yes its friday time to watch a new Cutting Edge Engineering Australia
Hey mate!
@@CuttingEdgeEngineering if the threads were in worse shape could you have welded inside the cylinder and started from scratch or would that ruin the cylinder ? great video ..liked how close you got to the threads and pealed the old head gland like it tin foil ..
thats crazy, never even thought chasing existing threads was possible. now I know. another great video guys
One of the most satisfying parts about the video apart from the incredible work you do is at 14:00 when your peeling out that old sleeve from the screw thread, that is like you said allowing the mega expensive tube to go back into shape, bit like relieving a giant headache followed by a nice cold beer!
The munted thread was successfully unmunted by use of a very clever operator using the demunting thread cutting bit.
p.s. the Safety Officer is just a big kid.
Professional unmunter here at CEE 😂👍
Great Repair! I'd recomend the Customer to apply some liquid PTFE-basen thread- and plane sealant at the area where the water went in. We've been doing this for decades now on Forestry machines, and it reliably prevents water from going in.
Loctite 5113?
Awesome work Kurtis and helluva job to the Mrs getting all the good shots!
Curtis, You are amazing, well done!
Great vid as always, have a fantastic weekend guys! 🍺🍺🐕🦺
Thank you mate same to you
Back in day when I did that sorta work when we ran a steady on Crome, we ran the steady on saddle leather pads
Was that with brass band steady?
Cutting Edge Engineering Australia yes same as yours just with solid bronze bits on the fingers instead of the roller bearings you are using, we’d just put the leather pads in between the bronze and Crome. They had a little cup on the back so they wouldn’t slip of the bronze
@@porkerthepig I hated them, they weren't worth a sh*t!
Always enjoy the videos, can't wait to get my lathe up and running and get to doing some machining least then im not paying someone else to complicate stuff for me when i give clear instructions.....
The thing i also enjoy is your workman ship and quality of work, keep it up its appreciated
The videos begin with your dog running around in broad daylight. The videos end with you driving the finished parts with the forklift in darkness. It tells the tale of how long your workdays are
Nice!
If only the design engineers would have to repair their creations, that would be great!
Thr designer wanted a seal. Management wanted to reduce the BOM by one part, remove one grooving operating from manufacture and one step from installation. Probably saved $15 from that $15,000 part. The CEO got a $150,000 bonus and the shareholders got 0.15¢ per share. All the customers got was fucked over.
@@jonathan1427 simple as it sounds, I live in that world everyday. I would love to hang a bunch of them design engineers I the rafters for all the stupid shit they think up and leave for us to deal with.
In France this thread is called "filetage au pas de l'artillerie" Good morning from France Vos vidéos sont superbes continuez Merci
That is much nicer than buttress 😂 thanks for watching!
I'm guessing they use this type of thread in the breech plugs on artillery pieces?
I guess that the thread profile is such that most stresses are expected in just one direction? The Wikipedia page implies up to twice the strength in one direction at the cost of a lot less strength in the other.
@@stuartgibson1959 yes absolutely correct. Bien le bonjour de France
So gratifying to be trusted with parts to repair and do as good as new. And something different every day.
well done Kurtis.hatss off.
Noice one guys as usual, good to see the safety officer having a fun day at the shop...Since when did manufacturers take longevity into account, specially when they know they are going to sell container loads of parts making millions on top of the original price tag...
Yes that is true was a good marketing strategy 😂
Planned obsolescence.
My problem with this idea is why in the hell don't they stock enough parts to back up the ones they've made in the first place? Try to get parts out of the big boys, Cat, Deere, just about anyone else and you're out of luck. Of course, Kurtis doesn't mind and we shouldn't either because we get CEE's content to absolutely enjoy. Damn, I love this channel!
I would put a bead of sikaflex or high temp/high durometer RTV in the gap if it were mine.
@@garys9694 I love helping farmers in my area stick it to John Deere. I've made quite a few parts that were 6 weeks out and 3 times the price I charged.
That's an unusual Head Job !!! Cheers .
expensive! 😂
Yes Max, she kept turning around while Kurtis had his tip in there! lol.
John, Australia.
Always entertaining. A bit of a pucker moment, when you were aligning the threading bar with the existing threads. I got the stickers, thanks.
Hey mate! We got your mail pack too thanks heaps for that
Outstanding, really interesting to see how you rescued this, thankyou for sharing this.
how is there thumbs down? if you don't like this type of content why are you watching you goose. obviously your competitors lol
Haters gonna hate. Or the jealous of big nutz and his ripper shank 😂
Thanks for another video.
Much respect for the hours you must be putting in - always is dark when you drive the finished job out of the workshop.
- Just thought: you are in the southern hemisphere - winter there now?
All the best,
Paul
Hey Paul we prefer to work/video after hours there is less noise and distractions. Yeah winter here but starting to warm up again
@@CuttingEdgeEngineering Well what passes for winter on the Gold Coast. No penguins on the Gold Coast except at Marine World.
Nice machining job Curtis without damaging threads, finishing picking up damaged threads in existing tube and fitting it to new gland nut. Always look fwd to your videos.
Hi from the UK.
BRILLIANT videos. Absolutely clever stuff. The camera work is spot on too. Throw a Staffy into the mix and you've got an ace team. Love the out takes. Thankyou for letting us see how you operate.
Kurtis casually snags a pin he sees out of the corner of his eye, rolling off the table. Aussie Rules footballer reflexes maybe? :P
Haha nah I'm more a motorsports man myself 😎👍
@@CuttingEdgeEngineering Cleetus?
@@CuttingEdgeEngineering Mostly been into circuit racing myself but Kevin at KSR Performance and Fab and Cleetus McFarland got me hooked on Drag racing and the fabrication that goes into it. th-cam.com/video/mQdsju-C16U/w-d-xo.html
@@ibTeeMac No fuckin way!
As always, enjoyed the repair work! You were talking about the o-ring, that should have been there in the design process. Would you have compromised the cylinder if you had added in one yourself or do you ever have jobs where you have had to make a groove for 0 ring during a repair job (let's say when customer requests it ) ?
Hi Kurtis have done a similar job on a smaller scale and run the lathe in reverse the tooling pressure eventually started to undo the thread. Great to watch such a good Aussie channel.
Rust NEVER Sleeps! Many years ago I worked maintaining snow removal equipment. Road salts and moisture corroded everything. One trick we found with the cylinders that helped was we would coat the threads with lacquer and assemble them with the lacquer still wet. It didn't save every one but it did save a lot of them.