Repairing Parts for Caterpillars BIGGEST Dozer! | Machining & Welding

We’ve got an urgent repair job to do so we can get our customers big Caterpillar D11 Bulldozer back to work! We have a pair of blade lift yokes off the D11 Dozer with worn out bearing surfaces that need repairing. We show the step by step process of the repair starting with machining down the worn surface using the lathe. With this being such an urgent job, we use Stoody 965-g hardfacing welding wire to build up the surface which will give a hardness of 55HRC. Once the weld has cooled down we machine the yokes back to spec in the lathe.
In this video we are using:
- Hafco TM-26120G Lathe
- Weldmac WHP-2.5 Power tilt positioner
- WIA 500i Weldmatic welder
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Our channel is all about showing you real life machining work from our workshop on the Gold Coast Australia. We specialize in manual machining, hydraulic repairs and heavy fabrication for the earth moving, mining and civil construction industries. So if you're a machinist that wants to see some big gear in action be sure to subscribe to our channel right now. We upload new videos every week that show lathe machining, milling, welding and all the good stuff that comes from a machining workshop. If that sounds like something that you would enjoy seeing, then make sure to join us by subscribing!
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[@CuttingEdgeEngineering]

Some "interesting" sounds were made when machining these hardened D11 parts 😅 Hope all your ears are ok! And it's crazy to think how big these parts look spinning in the lathe but they look so little on that massive CAT Bulldozer 💪 Subscribe and hit the bell icon to turn on notifications so you don't miss our weekly uploads. 👇 🤳 📲Follow us online here: linktr.ee/CEEAUS 🛍Official CEE Merch shop: www.ceeshop.com.au 🎉Get Early Access to videos in our Patreon community: www.patreon.com/cuttingedgeengineering

[@ypaulbrown]

Good Evening Karen, Kurtis and Homeless.....Cheers from The Other Sunshine State.....Paulie

[@importanttingwei7747]

Get kennametal new insert Fix8 suitable for every kinda steels and has 8 cutting edges

[@ОлегВятич]

Previously, finished parts were simply taken away into the darkness😂😂😂

[@pacificcoastpiper3949]

That’s quite a screech

[@TheEvertw]

I felt sorry for your truck when you put the pallet on them. One forgets how heavy steel can be!

[@richardbarnsley5782]

I'm 79 and I operated a similar business, albeit on a smaller scale, in Saskatchewan Canada for over 30 years. I really enjoy the fact you don't edit out the parts where things don't go as planned ie: harmonics in your huge "tuning forks". Those of us that have done these repairs know everything does not go as hoped and good on you for showing us the difficulties and how you overcome them. Keep up the good work. After you retire people will let you know how important you were to their daily operations...not so much when you're actually operating the business.

[@lloydmorrison5979]

You never cut corners and Always look out for your customers. You make parts better than new!

[@InheritanceMachining]

I'm always impressed with how much you know about mining/excavating equipment and their repairs. Quality job and great camera work from Karen as well!

[@TheTruth-iq9lk]

Oh wow! I watch your channel too! Although your work is on a far smaller scale, it’s so fine and intricate and just as entertaining to watch.

[@maxnex7676]

I'm thinking of the stress the owner of these massive machines must be under when urgent repairs are needed and the machine shop delivers within the strict time limits, I think CEE has a customer for life from now on in. Thanks guys, great video.

[@OB1canblowme]

They're probably fine. I imagine their stress is like Fry in Futurama when he drinks that 100th cup of coffee and reaches full zen and gets super speed

[@cenccenc946]

Time is money when one of those machines goes down.

[@cullenmiller8170]

One would think so, but a lot of time they quickly forget when someone else is 15 cents cheaper.

[@Danny_man]

@@cullenmiller8170 Local and smaller operations will never forget and be forever grateful - big companies can quickly forget when the new manager knows a guy he use to use....

[@silverfox1779]

As an ex maintenance superintendent it depends if it’s a pm related issue or found work …….. while this machine is down it will be having other critical maintenance done to it …. Maximizing down time to increase up time in the future …… it’s all part of the game

[@crabmansteve6844]

I think your welding skills are often overlooked due to how proficient you are on the machines (lathe, mill, etc), you do an outstanding job with that MIG gun.

[@alisciamarotta3888]

Very well put, sir!

[@ShotgunAU]

TAFE needs these videos in their curriculum for real world machining and servicing demonstrations. No bullshit, only relevant information without product bias and real-life examples of problem solving on the job. Kudos again Kurtis and of course it's all because of Karren for the amazing videography, it's purposeful and lint free.

[@knoxville1782]

Yeah...what not to do... Jesus Christ

[@javiermgtaoism5702]

Every video is not only entertaining but very instructional. Thanks, Kurtis for letting us see you hard at work. The projects you do are just amazing and they show the amount of skill and professionalism that is required to get these jobs done. Respect, sir

[@dieselhatz4247]

Never lose the out takes, always have me smiling!! Stay safe out there you three!!

[@dennisc3238]

That was really sweet for someone to gift Karen; you certainly deserve recognition for your patience (with both Kurtis and Homey) and care in editing! Homeless was, as always absolutely priceless, and it looks like an added bonus on this job is that it finished while still light out! I've seen a lot of your jobs loaded with the forklifts lights on. Have a great weekend you guys.

[@wickittiewhaat2495]

It finally struck me today, your welding is impeccable! To have no voids with that amount of material added on. Such skill. This of course coming from someone with no physical experience, just a general understanding of the process. Great job and thanks for sharing you three❤

[@billdoodson4232]

Brilliant video again Kurtis and Karen. When you look at the design, the materials and production values that have gone into just a "small" part like that, you wonder how they can sell a complete D11 for as little as $1.2M. That new carbide insert seemed to be the dogs whotsits. Always amazes me how different grades of carbide can make such a difference in a cut.

[@crunchysuperman]

Because Caterpillar is not in the heavy equipment business - they're in the spare parts business.

[@davidstewart4570]

​@@crunchysupermanSame with just about every manufacturer. Have you noticed how car manufacturers are always advertising incentives to get your car serviced at main agents' workshops?

[@totojejedinecnynick]

@@davidstewart4570 better example would be those newfangled all-LED headlights. Sure, it is only 1200 bucks extra on top of standard issue xenons, but god forbid you break them in a fender bender, it will be 4grand for replacement part. Plus labour.

[@belacickekl7579]

Economies of scale; if you're producing dozens or even hundreds of these dozers a year, it'll take significantly less time for each part's setup. Also, they probably cast and machine parts to size before heat treatment and the final precision cut, which really reduces how much material you have to remove.

[@jckhinks253]

i like how you explain what machines these repairs are off.brilliant

[@MartsGarage]

Excellent job team CEE. I've said it before, but the best thing about CEE is that although the jobs are massive, all the techniques are scalable down to us home gamer types. It's also interesting to learn little snippets about heavy equipment, an area I am not familiar with. So thanks Kurtis for the excellent machining demos and Karen for the great production. And thanks Homey for just being Homey.

[@markfryer9880]

You are right about the scalability of the techniques and it is also good to see no matter the size of the lathe that you can have issues with inserts and feed and speed rates. Mark from Melbourne Australia

[@ellieprice363]

That’s the second time I’ve seen straps used like that to drive a part on centers; both by Kurtis. I didn’t know it could be done until I saw it on this channel. Hats off from America!

[@MrRebar15]

*Cutting Edge Engineering Australia* Bravo well done, thank-you sir for taking the time to bring us along. GOD Bless.

[@bostarbird5282]

I'm glad to know that flicking a strap after tightening it and saying that'll go nowhere works down under as well. Thanks for the videos. P.S. Karen is nailing it with the videos and editing.

[@deeranfoxworthy6069]

Quite interesting! Heard many machinists mention harmonics, but this was a fantastic example!! Also even hearing that high pitched one at 26:13 was brutal lol

[@steven.h0629]

So was it the harmonics that caused the preferred bits to not bite?

[@airplanemaniacgaming7877]

@@steven.h0629Think about it this way: the Harmonics are the result of vibrations. When it vibrates, it causes small movements. So sort of, yes.

[@skysurferuk]

THAT is a long, hot job. Especially in your antediluvian heat! People don't understand, it's not just the heat from the job, it's the layers of leather & protection that adds to it all. Nice job! 👍

[@thomasvanpelt6586]

From one machinist to another you are truly an amazing machinist Kurtis! Your problem solving and setups are absolutely genius. Karen you are great also! Both of you keep up the awesome and very very entertaining videos!

[@edkeniston4786]

It’s always amazed me how time lines change engineering specs! You did a great job as you always do. Keep Homeless happy!

[@Joserocha-wm9de]

My favorite machinery channel Big shout out to Mrs CCE , she's the most talented camera lady on KZbin 👌

[@CuttingEdgeEngineering]

Hey Jose thank you for the great comment I appreciate it! From Mrs CEE 😁

[@Joserocha-wm9de]

@@CuttingEdgeEngineering You as well Mr CCE , you are a great machinist 👌 Cheers from USA 🍻

[@rjung_ch]

👍💪✌

[@stevenlatham4397]

Yesterday the KZbinr Dirt Perfect had an employee wearing one of your shirts, and the comment section was raving about it. You guys truly are highly respected globally, and genuinely deserve it. Your videos are the best part of every Friday.

[@dwaynerussell9711]

​@Cutting Edge Engineering Australia The best person on KZbin at filming without a doudt!!!

[@didier6265]

Rainy day in France, it is always a great pleasure to see your videos. My game with your videos is to guess what technique you will use to do the job. The last time I worked on a lathe was in high school 40 years ago. Bravo and thank you for your videos.

[@matushorvath]

The welding shots around 15:35 are beautiful, great camera work.

[@gwharton68]

Kurtis, you are amazing. Using packing tape as a drive dog is ingenious. My hat it off to the three of you.

[@neilfairless4589]

You both make what you do look so easy, i can't imagine how hard it is and produce the high end quality products both physically and for our entertainment, Cheers guy's.

[@lloydmorrison5979]

I really enjoy your videos. You give your family " Bragging Rights". My grandfather was a machinest for 30 years. When i was a kid, i never understood his profession until long after he passed away.

[@Uli_Krosse]

Man, what a monster that thing is! I am not even surprised that these yokes wear out like they do. I hope the customer was appreciative! Thank you and as usual: May you all have a great 'effing weekend!

[@CuttingEdgeEngineering]

hey mate the customer was so appreciative they sent us another pair to machine 😂👍

[@Uli_Krosse]

@@CuttingEdgeEngineering No good deed goes unpunished, eh?

[@scruffy6151]

​@@CuttingEdgeEngineering can't argue with a repeat customer.

[@danhard8440]

@@CuttingEdgeEngineering just like printing your own money🤣

[@MichaelKingsfordGray]

@@scruffy6151 You can if they don't cough-up on time...

[@broheim23]

Your videos are always good, Kurt and Karen, but this weeks was exceptional. I learned: 1. The use of banding to secure the yokes in the lathe. 2. Damming up the ends of the welded area on the yokes prior to welding. 3. Homey opens packages almost as well as a human! I've recommended your channel to some friends and have gotten nothing but positive feedback. Thanks for the tight editing and keep up the good work!

[@glennbarker222]

Beautiful work, great camera work and editing too. Quickly turned around as well, that should be one happy customer. Well done.

[@turtuhl]

I like that you are customer service oriented like my dad was with our welding/farm dealer family business. Great work!

[@ramonoff]

Do not bother but today, the best of the video is the face of the puppy when he has opened the first package and is with his paws on the table waiting for the second. LOL. Thanks for your invisible smiles Karen.

[@YouTuber-mc2el]

Very happy that Karen received a gift from a subscriber. Kurtis and Homey, deserving no doubt, but Karen is just as much so. These videos are done to as high a level as KZbin offers IMHO. Solid performances from all 3 of you as always. Thanks from a entertained/knowledge received subscriber.

[@walter2990]

Amen, and Amen!

[@leegibbs6382]

I’ve unfortunately, only found out about your channel just recently. But I’ve been binge watching all your videos since then! You do amazing work and I love to see it!

[@CuttingEdgeEngineering]

hey mate welcome to the channel & thanks for watching 😎👍

[@mateoramos-qb3gv]

Traducir

[@wicklowjohn]

Editing for the second weld and cleanup is brilliant.

[@petergamache5368]

It's impressive to see materials that size with eccentric wear on them - the forces acting on them must be pretty serious!

[@horstszibulski19]

Karen's bracelet gift put us all to shame, she really deserves that nice piece! This time I really liked the follow-the-wire shot from the spool through all that drive sprockests in the feeder up to the welding gun! Thx a lot for taking us along on that hard (facing) job! 👍👍👍

[@frikkied2638]

There are two constants in life: change, and a CEE video to wake up to on a Friday.

[@907jl]

The strapping "drive dog" was genius....hell of a job!

[@Mike44460]

This guy has forgotten more than some so-called "machinist" of today know. WTG Curtis!

[@napsac4816]

Have you seen the Jackson Brothers set of d11's they're always after parts. Could be a good collab 👍

[@thejacksonbrothers]

They are always breaking something🙄

[@keithjames3321]

The classic “going nowhere” when strapping down. I love to see everything you do, thanks for sharing with us

[@lukeframpton3671]

That sound must go right through you proper job mate you know your stuff

[@andrewwilson8317]

This is one of those jobs that justifies getting out and setting up the toolpost grinder. Bit of a pain as lathe got to be stripped and cleaned immaculate after use but it does the job perfectly.

[@alro2434]

How about a real grinder, takes off material 5-10 times faster the a cutter!

[@chrisjcannady]

Of course, I like the welding and cutting but the Safety officer is my favorite part of the shows and the outtakes.

[@nena4215]

That is amazing, same day repair on such a huge part...unheard of...and delivered too, wow!!!! Camera work was brilliant, as always, the color of the weld shavings was gorgeous, perfect shades, holy cow!

[@zestoslife]

That is one hell of a tuning fork! Never would have thought of the sound / resonance issue given its size.

[@CuttingEdgeEngineering]

the bigger the fork the worse the sound 😅😭

[@Dreddip]

@@daleolson3506 Damn, you beat me to it. Bravo!

[@mlsargent51]

I like where in some video's you guys will place a clock in the back ground so we can see how long the job is taking. I understanding that's not always practical, but in the description, and mention of total time these jobs take, would be pretty interesting. As always you guys are amazing!

[@WayneWerner]

Never fails: "Oh I'm sure I'll never need this thing again, it's been a decade since I've needed it" tomorrow I'll need it twice 😅

[@lewisavinash1]

that happened to more than 10s of times

[@nviduumde3497]

"Essentially, this is a big tuning Fork." Said with the straightest face ever, well knowning that it might blow someone's ears when using headphones... God I love this Channel. Top notch work, Kurtis and Karen. Keep it up. And I once again admire your work ethics and craftmanship even with time contraints. This is pure joy to watch. Thanks CEE

[@ДмитрийГородец-н9м]

Спасибо, хитрым конструкторам Катерпиллера за то что делают нашего блогера всё богаче и счастливее. 👍👏🇷🇺🤭

[@fjkelley4774]

I laughed. Good one.

[@ДмитрийГородец-н9м]

@@fjkelley4774 🤣👍 ideal variant. Маркетологи CAT наверное думают кпждый день как бы ещё кого из наивных на деньги поиметь🍓

[@jeremymatthies726]

Had a great laugh at Homey snagging the first package and opening it all by himself. Awesome job on the yokes Kurtis, they turned (ha, turned 🤣) out great. Karen, as always you do a awesome job on the filming and production of these. See you next week.

[@Skeptical_Numbat]

It's very cool to watch the occasional piece of swarf flare up & glow brightly as it gets just hot enough to ignite.

[@fredfarnackle5455]

"I do have a mandrel for this, but I actually cut it up for something else..." Oh dear, Kurtis.💩 I wish I had $5 for every time I've said something like that, then I wouldn't need so much pension money! 🤣

[@MatthiasWelwarsky]

That's one of the occasions where a second guy able to weld (or machine) could have saved time on the job. And yes, I know how you feel about all the drama that comes with employees ;)

[@gregrupar135]

I love the fact you showed that some inserts didn’t work and going through different ones to get the correct finish

[@robertrawlings]

Fantastic video guy's love Karens camera work, homeless never ceases to make me laugh with his antic's well to you all :)

[@1981FlyingV]

Your sound production with the stereo panning really adds to the video. Well done!

[@scottsand2317]

You are very good at what you do Curtis! I’m always so impressed with your work!!

[@guymounsteven8856]

Thanks for putting another smile on my face . From Killaloe Ontario

[@mitchhifi9192]

Awesome video, I've been in hospital for awhile. Glad I can finally watch some more videos.

[@bloosabina]

I work in IT but I absolutely enjoy watching your repairs! Amazing.

[@BlueJeebs]

Short deradline jobs done well, awesome work!

[@martygardajr2455]

A good tip for reducing harmonics is strapping chunks of wood to the source. Helps deaden the vibration 👌

[@dbriggs1689]

Your customers are lucky to have you.

[@johnblecker4206]

Very nice cleanup with that ceramic cutter installed.

[@photonphil873]

Wonderful!!!!! The welding shots were wild!!!! Great stuff, Best on You Tube!

[@douglasmayherjr.5733]

Another Great Video. Impressive, when you see how big those pieces are. Thanks for filtering out some of harmonic noise. Thanks for the videos.

[@paulcooper2897]

First class quality as always! Thanks for sharing 🇨🇦

[@yeagerxp]

Excellent work 👍👍👍 . Thank you for sharing. Take care of yourselves 🇨🇦

[@lawrenceogden3736]

Another engineering masterpiece from down under

[@daviddundas4140]

I think the big gas torch is Curtis's favorite tool in the shed, he loves firing that bad boy up, love the vids guys

[@gdworkshop]

Fantastic video. A lot of talent in front and behind the camera.

[@citadelgrad87]

The snap of the tie down and declaration, “That’s going nowhere” was the cherry on top of a job well done. Always fascinating, Kurtiss. Well done.

[@pacomb]

Just another lovely Kurtis & family video. Always learning with your work 👍

[@phr33ksho]

Great video, I just started learning to run the lathe at our shop, and while the parts I'm making are an order of magnitude smaller, your stuff is very inspirational to someone starting out in this industry.

[@sambrown1779]

Seriously, your videos are the highlight of my week. Thanks very much. Appreciate it

[@futten3230]

homey so pleased with himself after tearing into the package

[@rdrun51660]

I miss the clock when you do jobs. I have been in the trades for a long time. I appreciate the fast forward for entertainment, but it is also great to know how much effort and time truly go into the work!! Awesome video regardless and thanks!!

[@ronaldhope8939]

You never cease to amaze me with your attention to detail. The camera work is always outstanding, best on KZbin. Love the sound of the welding, so pure and consistent. Outstanding job.

[@ericlandau5922]

I was a mechanic in New York for 445 years we use the brake lathe and rotors would get a harmonica out of them I used a strap a rubber strap that actually wrapped around the drums and the rotors and it absorbed or the harmonics and of course a brand-new B Eric from Florida

[@benjix3macor737]

I just made the other day at work many different sizes and thicknesses of chuck spiders. They save me so much time. I highly recommend making some

[@kimwatchman644]

For the harmonic noise. You could try bolting thick rubber to those 2 bolt holes on the ends and see if that dampens the noise.

[@michaelweatherhead9470]

Thanks for the video Kurtis well done with the machining awesome Mate ❤️❤️👍. Take care of yourself and family and be Blessed and Homey 🐕❤️❤️.

[@freebeerecords]

I took the liberty of analyzing the frequency of the D11 blade lift yoke harmonic resonant tone at 7:38 and it looks like it’s 2309 Hz - equivalent to a D three octaves above middle C on a piano (or D7) give or take. Another great vid, many thanks!

[@joerobilotta2199]

Your work is always amazing. Karen is top notch behind the camera.

[@petermccuskey1832]

Really nice workmanship

[@tid360]

Great work as always! Use a fixed steady rest on the centre diameter and that should cure your vibration/finish issue!

[@jfleser88]

From gold to purple chips. Very cool.

[@bemohrmann]

Great work all around, and those have to be some of the coolest looking chips i have seen on any channel on KZbin. keep up the great work in keeping us entertained.

[@texaspapa9445]

Homey is awesome and so are y’all

[@ronm3245]

I like your ON/ON switch.

[@henrikstenlund5385]

Great job man. Your wife is very smart, dude, congrats.

[@ramzibani4897]

de la Tunisie : bravo pour les idées, bravo pour la méthode et bravo pour la qualité du travail : je vous souhaite beaucoup de succès 🙌🙌

[@ImpactWench]

I can't believe you can just *do* that without any drive dogs, and not bog down. Those straps are amazing.

[@dougclem7711]

That camera action is Hollywood!

[@jaredayers6670]

I’m glad his cactus showed up We love your channel, keep up the great work! - Jared (Kylie’s dad 😎)

[@WeecksArtServices]

I was referring to the installation process by the owners who of course are amazed at the quality of your work. .

[@luckyirvin]

when i see Karen filming Keith bringing in the next project i know it's gonna be sweet it's gonna be the best.

[@cskovach]

Wouldn't have expected a big piece of steel like that to transmit vibrations so bad. Hard to fix it once you already have established chatter in the part, unless you dig under it but the hardfacing makes that difficult if not impossible to do. Good job salvaging a decent finish out of it

[@1ginner1]

Hi Kurtis, Changing the approach angle when finishing was a good idea as was changing the feed. If you get a harmonic vibration you need to not follow the vibration pattern on the workpiece changing the feed does this.( It might also be a good idea to use a tip with a smaller radius). Nice work.

[@brian_2040]

Good morning Kurtis and Karen. Love the videos, my only complaint is I wish there were more. Lol😂 y'all have a great weekend, and can't wait until next Friday.