Massive Repair on BROKEN - Crankshaft & Bearings | Gouging & Welding | Manufacturing & restoration
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- Опубликовано: 21 сен 2024
- Massive Repair on BROKEN - Crankshaft & Bearings | Gouging & Welding | Manufacturing & restoration
Cutting edge engineering australia
Machinist in australia
Machinist
D8 bulldozer
D8 dozer
Gouging
air arc gouging
Cracked weld
dozer blade repair
Massive repair on dozer blade
##australianmachinist #machineshop #machinist
I love seeing a pristine bearing being rolled around in the dirt
Well it is a form of job security. The machine will be back next year for a new bearing. 😊
I love seeing their pristine work boots getting all scuffed up in the dirt 😂😂
Yea, watching the hack job these guys do makes me crazy.
Reckon what Motion Industries charges for that bearing? Its gotta be Chinese bearing or maybe the shop in the 3 streets down makes em out of recycled Moped crankshafts.
Not going to carry it is he, only got standard issue flip flops on
I can't believe that they did not use an ounce of lubricant when replacing those huge wheels. Everything I have ever done involving an axle and a keyway, oil, or grease always helped.
They were taper fit. They need to go on clean so they lock up.
@@nicholassmerk Thanks, that makes sense.
They use sand to lubricate, change the bearings out every 2 weeks ...
I'm glad he has his safety squint on when cutting..
Thank god he's wearing gloves
That's some next-level squinting. Cutting-torch squints! 10:00
and the steel toed sandals
🤣
Holding his breath, too
The guy holding the bar to be hit by the sledge is incredibly trusting.
I wouldn't trust nobody in this case..and I wander how many accidents happen in this kind of workshops
The guy he replaced 's nickname was "Lefty"
I wonder how they decide who gets squashed next. Flames and sparks everywhere and blokes in dresses, what could possibly go wrong 😂
🤣
Mmm hammered bearings. And hammered cast iron flywheels. And blowtorched axle! All the things we love and approve here in 1930s USSR!
And hammering on the hub right at the shaft was sure to peen the hub tighter.
Other than most commenters here I have respect for these men that get the job done with elementary means.
I wondered if it would have worked if they had tried to pull the two wheels towards each other doing the following: 1) Place both wheels on the axle, keys in place. 2) There are 4 holes in each. Feed a chain through the two opposing uppermost holes. Do the same with the two lower holes. Close both chains into a tight loop. Stick a bar through each loop and have a man at each wind the loop so it tightens.
And another idea: the center of such an axle contributes next to nothing to it’s strength. A throughhole could serve to poor in liquid nitrogen to shrink it and ease disassembly.
Your comments are welcome!
This situation is a perfect illustration for the old saw: Perfect is the enemy of Done... Sure, it's something of a horror show if you're used to clean-room assembly facilities, but this is reality in many parts of the world.
Not exactly precision work but these guys deserve every penny they earn.
Truly agree 👍❤️
I like and respect the low-tech sheer force basic tools they have to employ in Pakistan (?)
To replace two beautiful steel bearings(unpacked& un greased) barely out of the dirt to parts that are bare wiped clean and re assembled is like putting nice lipstick on a pig.
Grease will attract and retain abrasive rock dust.
It's a rock crusher jaw
and precision bearing mounted with a sledge hammer!
👍
Yuo
Yes they did
Third world hero’s. Amazing watching how much they can do with very little.
They are getting the job done, and very resourceful too! It always amazes me how these guys are able to work with what little they have and succeeded 💯👍👍
Thank you so much for well appreciating us👍❤️
All that personal safety gear used is outstanding
Safety what now?
И сваркой без маски😂
These guys are strictly bush leaguers. I worked on rock crushing equipment for a couple of years and replaced dozens of these live jaw bearings. This assembly is from a rock breaker which breaks larger rocks down to a size that will feed through your crusher. These things weigh a couple of tons so you should use nylon slings or a chain sling instead of a decking chain and make sure your rigging is properly placed so you don't drop the unit like these guys did.
To remove those flywheels you set the unit down flat on some dunnage so their outer edge just clears the ground. You use a 50 - 100 ton hydraulic wheel puller rigged through the holes in the flywheel with a pulling bar so the hydraulic ram applies pressure to the end of the shaft. I know a lot of you are going to say that they don't have a hydraulic puller because they cost too much. So how much would one cost in comparison to having a backhoe with a jackhammer unit? The answer is less than 5% so that is no excuse. Once you have your puller in place you crank up the ram pressure and many times the wheel will pop right off. Sometimes you have to shock the wheel with a sledge hammer by hitting it on the wheels face. On occasion, you may have to apply a little heat with a tiger torch to the wheel hub to get it to break loose. The wheels are a taper fit on the shaft so once they move a tiny bit they break loose easily.
When it comes to the bearing replacement, you start by splitting the outer race with a cutting torch and then cut the bearing cage apart leaving you with just the inner race. To remove the inner race you can use a hydraulic puller with a bearing splitter of an appropriate size or you can use a cutting torch. If you use a torch YOU DON'T USE IT LIKE THESE GUYS DID. Instead of cutting perpendicular to the shaft, you lay your torch over so it is parallel to the shaft. Going perpendicular can and will damage the shaft like they did here at 14:29 where you can clearly see the gouge taken out of the shaft which weakens it and may cause it to fail in service. With your torch parallel to the shafts surface, you start to whittle away the bearing using just enough oxygen cutting jet to blow the oxidized metal out of the way. When you get down close to the shaft you can see the line of departure between the bearing and the shaft. Keep working at it until you have cut all the way across the inner race. There is no need to cut more than one slot! Once done, you take a cold chisel or a steel wedge and place it parallel to the shaft surface and drive it into the end of the slot you just cut in the race. The wedge effect will cause the race bore to open up and you can easily slide the race off the shaft.
When you install the bearing and the flywheels you should always give the mating surfaces a coat of anti seize. This will keep the components from freezing together should they have to be removed in the future.
Seems to me the repair they've done won't last anywhere as long. Maybe the customer isn't looking to the future and is winding down
Thanks for taking the time to write all that - I had so many questions and you answered them all! I was curious what this piece was for and thought there must be a better way of doing it, so I guess now I know! I'm just wondering: the new bearings that they installed - where were the old bearings on the assembly when they started work? Had they already been destroyed or removed?
@@burgerjointgame The inner race of the old bearing is all that was left, and is what they cut off.
@@jagmarc Even if the customer is winding down, that's no excuse. These assemblies are interchangeable so this piece could very easily end up on another breaker. That gouged up shaft could easily break and then what do you have? If you are going to work on these kinds of assemblies do it right.
Scooter thanks for all the details.. One more question, how is the grease kept in those bearings with no apparent seals?
These guys know just the right amount of magic dirt to pack into the bearings for proper break in.
This is awesome work carried out under a shed ? This should be done in a heavy machine workshop....but this teams looks so clever and and done the job in a small shed...hats off.
I'm always amazed by their ppe😮. I really feel for the guys in sandles.😢
Ahhhh! All done, good for another twenty hours of work!?
Yes, just the environment for a precision bearing.That's the way to mount a bearing, just use a bigger hammer.
No one could have possibly seen that lifting lug failure coming.😂 6:42
They are installing new bearing and don't bother to cover to protect the bearing from dirt, moisture WHAT A BUNCH OF HACKS
So what do you prefer today? Getting crushed to death or getting caught on fire?
When I see these type videos, I always wonder how many don't go home after work and/or go home with major injuries...
Yeah you are correct about that but nobody can change here rules of these workshops 😒
Miro ESTOS vídeos desde URUGUAY. UN PEQUEÑO PAIS QUE YA PASO POR ESTA FORMA DE TRABAJO AUNQUE QUEDA AUN ALGO EN ALGUNOS TALLERES. POR LO TANTO MI ADMIRACION Y MIS MAYORES RESPETOS POR LOS TRABAJADORES DE SU PAIS.
@@Manufacturingvideos10 what about small things like steel toe cap boots and hearing protection.
No steel toed sandals. But they get the job done.....gotta respect that.
No fire protection, no real shoes (1 guy only), how dangerous this is!
Cleaning the area where that lug went on would be my first priority. Weld would have some good metal to bite into
One already broke off you'd think they'd learn.
No they not because of ownership
That temporary lifting bracket failing was almost a given. Even the welder looked nervous about it when they first lifted with it.
Presume that's a rock crusher Jaw and elliptical axle assembly?
I can only imagine the HR department at the end of every day deciding how many replacements they will need to hire due to injuries
The logging industry used to call them stump sitters. They’d show up with their lunch and wait until somebody got wiped out and take their place.
Use a tag line guys on stuff when its on that crane. Helps guide it as well as if you keep a bit of tension on it. You can feel if its going south a bit
Got to love those Indians. They have absolutely no fear of anything. I guess when one dies a thousand more are there to take their place.
Correct ✅
Pakistanis
Ok then, Pakistanis.
Necessity is the mother of invention...old school still works....pity they couldn't have rolled the bearing over some wood but at least it was still in its protective wrapping...keeps everyone fed...👍👍
Thank you so much for well appreciating us stay safe and healthy 👍❤️
That’s not old school, old school would have been on top of cleanliness.
@@bernieshort6311 they don't have the luxury to afford concrete floors and a dust free environment..having had to repair heavy plant in muddy fields and dusty conditions overseas it's not easy to be surgically clean...given the environment and minimal tools I think they did a fantastic job ...in the west that equipment would have been scrapped.
@@richardmessenger9474 I wasn't criticizing the workmanship or the people, I only criticized the meaning of Old school, so don’t get your knickers in a twist.
@@bernieshort6311 I wasn't getting my nicks in a twix...sorry it came out lke that....👍👍
I think the Health & Safety manager was away that day.
Good guys who know what they do - no one is wearing really dirty dresses.
YES the Safety Gear, sandals & loose clothing, then the lack off gloves, safety glasses, face shield, burning goggles and welding hood. Maimed, blind and deaf at an early age. Very sad....
I'm a design engineer, I learn a lot from these videos, thank you!
Thank you so much 👍❤️
How do they keep from catcking on fire, they'r walking wicks.
A sense of responsibility for their own safety and common sense id say
Just gotta love those steel capped Sandals those guys use. There must be a market in the West for that kind of thing. Well done for your safety team.
mohamed your project IS ON FIRE!!!
Thanks for watching
How about those steeled toed sandals? It appears that a large part of the safety program consist of the guy in charge of safety shouting ," look out , get out of the way " before one of the men is crushed by the crane operator .
Omg you scare me with your words 🤣
They're lucky they have a crane. Some other shops use and elephant and a series of pulleys to lift heavy objects.🤣🤣
Safety boots won't save them from something that heavy
I know that . Mine was meant as a facetious ,sarcastic , and satirical dig at some of the ridiculous regulations of OSA . You know that there are not steal toed sandals and they mostly wear sandals in that part of the world and that they have great safety records without the help of bid brother .
I’m a sally safety guy, given the conditions, they are amazing.
It’s the cultural attitude. It is what it is.
was the same 100 years ago in the US
My favorite tool for taking off stuck pulleys and bush bores is an air hammer, so I completely understand the way they removed those, but they needed some sandpaper, emory cloth or something to clean up those surfaces before replacing them. Then they should have added some anti-seize and some grease or oil on the threads. The next time those bearings need to be replaced, they might end up with the shaft getting pulled out of the housing before the pulley and flywheel come off.
I'm sure they cleaned it up but didn't show it. I am constantly amazed in all these videos that something doesn't get galled and seize up so they have to cut the whole thing apart or junk it. Maybe they just don't show those.
Yes you’re right about these kind of videos
job security.
Also do all the shaft cleanup before putting the new bearing on. I have used the piece of shafting hanging from the bridge crane many times. Nothing like getting the big hammer out.
@@kolsen6330 on it
ما شاء الله تبارك الرحمن - ربي يحفظكم ويبارك فيكم - عمل رائع
when i see this i allways think, safety first!!!!!
Yes you are right ✅
When I nod my head, you hit it!
Look, I'm no engineer, but it seems to me this situation clearly calls for the application of inverse reactive current, stabilized across a unilateral phase deflector, which could automatically synchronize cardinal values using a calibrated set of variable dimension flux wrenches.
No, I'm not talking about common variable dimension flux wrenches you'd use in a modi-fisable application; that would almost certainly yield a reaction of magneto-relative gyration which would spin around at something like (X = the scalic ratio) x (times) (rotational corona ÷ π) - (minus) E .... or, if my "off the top of my head" calculations are correct, at somewhere around 4km per second / per second! Whee! (That's just a guess, of course. The exact diameter of each of those wheels, disks, gears, flanges and shafts would have to be computed taking into account the potential acceleration of capacitive duractance before an accurate measure of umbilical radiation could be made.)
Also, it sure wouldn't hurt if they had a few liters of prefabulated amulite - suspended in a solution of dynametric spall of course - which could be applied by a hydrocoptic marzel tube, thus reducing the ambificient resistance to a negligible number. That would likely yield best results if rectificated by using the Maynard-Kroll Longitudinal Cam Sluicing Procedure, of which I'm sure you're all familiar.
(By the way, it was the young American physicist Kroll - his first name now lost to the ages - who initially applied a dilentium voltage across the special temporary clamps attached to the derrieres of over 600 particularly fulsome female volunteer test subjects, all of them student volunteers from hair style salons in China, Japan, Norway, Sweden and New Jersey.
Now, I'll just bet 2 or 3 of you are thinking: What about the effect of logarithmic spurling when side felminescence takes over? Great question! In my experience, the cellular degradation of substances like tempered steel with a hardness MOH of 4.3 or less, will allow deltoid panandermic fusions to be minimized... thus cancelling subsequent fuseal modalities.
I'm sure the fellows in the video considered - then dismissed (and rightly so) - the use of a drawn sinusoidal trennion. That could have applied considerable force during the early cabulation phase of their effort... but it would also have induced an unacceptable level of bi-thermal scoring on the helio-multimetric shaft... something none of us wants to see, right?!
Simple really.
You are not wrong 😂😂😂😂😂😂😂😂😂😂😂😂😂
"wonderful"
what language is this
not pretty, but job got done. thanks for sharing!
Thanks for supporting ❤️
Did I miss seeing
packing the bearing with grease
Open bearing so it would just attract and retain abrasive rock dust.
It's a rock crussher jaw
I believe the bearing sits in a saddle on the crusher which is sealed and then bearing runs in oil. Jmtc
Gute Arbeit in Badschlappen.
Wenn der Fuss mal platt ist, steht schon der nächste bereit.
Thanks for your review ❤️👍
There is always one guy sitting around and do nothing. 😂
Sounds like the chipmunks Alvin, Simon, and Theodore talking on this video.
Hmmm
This is my type of vid.. Ta for uploading 🏴👍
No problem 👍
Love the safety sandals. Looks like Brampton...
😝
Would rather see them hammer on a brass punch than on the race itself.
👍❤️
hammering hard faced hammers on hardened bearing. If any pieces had flown off they would be like bullets.
Appalling working conditions, however It's good to see they are at least wearing their safety flip-flops.
Not quite up to the safety standards i've been use to , but they got the job done in the end .
Had to laugh when the 'lifting eye' stuck on by the 'welder' gave way.. zero surface prep, probably little weld penetration and the eye was made out of some scrap from the last job and stuck on with bird poo weld.....
Correctly said thanks for watching ❤️👍
I was wondering how long it would last as it was picked up.
Bet them blokes knew they were swinging that thor hammer all that time lol
Thanks for watching 👍❤️
It is the moveable jaw of a rock Jaw Crusher, the part of the shaft through the casting is elliptical
Thanks, I was wondering what it was.
It's a small one. At the old Kaiser Sand & Gravel Quarry in Clayton CA we had one that was 58" by 80", and it was the original crusher installed there in 1958. The flywheel and drive pulleys are 14' in diameter, driven by a 200 HP electric motor. I worked there for 20 years.
Quality work .if the elephant would help
How about the sledge hammer to the bearing ?
Ruined it, dented and dinged , unbelievable 😮
Used oil goes on the floor to keep the dust down
🤣🤣🤣
If you want that thing off the shaft then why is it on the ground where it can’t fall?
These guys a amazing.
Thanks for watching
Good Job 👍 ❤ Do Hard And You Will win the World ❤️
Thanks
The guy with the cutting torch was smart enough not to wear sandels.
But not smart enough to wear dark lens goggles.
It's impressive to see how resourceful these guys are in getting the job done, especially given the limited tools and resources they have available. It's a testament to their ingenuity and determination to succeed. However, I can't help but wonder if using an excavator to hammer open a container was really the safest or most efficient option. It's important to prioritize safety and consider all alternatives before resorting to drastic measures. Nevertheless, it's interesting to see how they were able to ultimately get the container open, and I hope they were able to achieve their goals. 💯👍👍
What a hack job, cleanliness be damned and the keyway for the counterweight were shot. They will be revisiting this in the not to distant future.
Pop over there and show them how it's done champ.
Nice looking roller bearings. From Sweden. This must be some serious gear :)
Thank you so much ❤️👍
I love how the video is sped up to make them sound exactly like Minions - even down to the laugh at 3:28 - the resemblance is uncanny
That new bearing is looking a little banged up already after the hammer installation
Yes here is available bearings which is used old cruise ships and here is never have a bearings making factory that’s why here is just repaired bearings available
if have on a mind, they made this bearing using just fireplace and hammer-then its ok lol
What is this piece of equipment? Pump or some type of hammer for a crusher
Yes you are correct it was a hammer for a crusher machine
I wanna hear the guy holding the steel chisel scream when the guy swinging the sledge hammer misses and hits the chisel holder in both arms - and we hear the bones snap.
😳
What type of machinery did this come from, it would be great if you had showed the eventual usage but perhaps your shop only got the item?
Come from Pakistan
good start when you roll a bearing around in the dirt...
👍
Got to admire the safety shoes and eye protection.
That chisel should be entered for the world record mushroom growing competition.
First bearing walked on so was not even an interference fit on the shaft and the second bearing was hammered on whilst still being held by the hoist, both will lead to premature failure of what will be a very expensive bearing due to incompetent fitting.
You are right ❤️👍
Why they didnt put out the fire after plazma cuting? The oil/lubricant is burning, and they inhale the probably toxic fumes.
You better have fast reflexes in that joint, jeesh did you see that guy jump like a cat!
❤️👍🤣
Eyes don't last long when unprotected while welding and burning. I've had a welding flash, and it isn't pleasant.And that was from one quick flash.
Can anyone tell me what it is they're repairing?
Also the outside of the bearings don't seem to be resting on anything so what are they for?
There must be more to it.
It was a stone crusher machine
And in this video we show you only 1 part of machine and the other one fixed on crush plant at top of mountain 👍🫶
Thanks for the reply. I kind of understand now.
Always nice to see a brand new bearing being smashed with a sledge hammer OMG
Thanks for watching and make me laugh🤣🤣 here in all workshops they use same techniques
That's what you call "precision fit".......LOL
That's a 'certified' Snap-On sledge hammer.......hammer blows to specification. LOL
Always wear safety sandals!
Thanks for your review 👍❤️
I wonder if they ever watched Shake Hands With Danger movie series.
In the entrance of the shop we can read a warning sign that says ;
No safety glasses or steel toe boots beyond this point
Hmmmm
no anti seize grease on any threads
Yes here is nobody knows this kind of liquid 👍🤣
Wrap it up with old rags, dipped in oil, then burn it. Best method to lossen
Thanks for your review😊
It's the lack of steel toe caps that really disturb me, please where steel toe caps lol
Its okay, they're wearing safety sandals 🤓
Got some rock stars right there.
😛
I love the smell of grease burning in the morning.
Love those steel-toed sandals.
Imagine standing next to that machine (whatever it is) a getting it up to speed !??! Knowing that those bearings were rolled around in the dirt , no degreaser to clean the shafts, no grease on the bearings! Its like a time bomb!
You’re right sir
Anybody know what exactly the unit they’re working on is?
A stone crusher machine’s part
All running around in their jim-jams and not a pair of steel toe capped boots to be seen. Adds another dimension to the term "flat feet"
What was this thing made for?
Stone crusher for mountains
Please get these guys some safety boots 🥾!
Yup 👍
Steel toed sandals wouldn’t help at all with the weight of the side “shaft wheels”
Its all about learning from others, using that "pecker" was a great idea.
The lack of safety equipment is sad, reminds me of my starting my apprenticeship in the UK in 1964 we were issued with goggles, few wore them: no safety boots or ear protection and lots of lead, asbestos and mercury about about
David, I worked in a saw mill in 67', no ear protection, no face shield, one glove for the right hand only (don't ask why to long to explain) no safety shoes, later on they gave us a thick leather apron because the safety board came and told them well shut you down if you don't comply. I still have all my fingers but I'm going deaf. I lasted one and one-half year, some of my co-workers got hurt badly. We did not have much of safety laws, it took many years. Stay safe
@@caddyrack good points, your experience was similar to mine. I now recall a lifting chain had a link replaced with a bent nail and when the safety inspector from the insurance company came round we were instructed to hide the chain. Of course those who said hide it were never near hoisted loads. I'm a bit unsteady on my legs now and my sight is poor, I wear a hi Viz jacket on country walks, it's never about doing things in a safe manner because that's what the rules say but doing a mental risk assessment and behaving accordingly.
Take care.😎
"Awesome Safety Shoes" OSHA would have a Heyday passing out fines over there.
Вы же вроде занимаетесь постоянно ремонтом этих дробилок? Неужели постоянные подставки не сварить? Какого хрена изделие стоит на каком то хилом двутавре и трубе?
Thanks for your review
The life expectancy of a worker is probably 6 months or less with the way they are handling all that stuff. That sledge hammer and chisel is no different than a gun when a piece of that hammer or chisel breaks off being swung/hit that hard.
Yes I agree with you it’s very dangerous task and wrong way to repair but they work with what they have and thanks for watching sir❤️👍
I have a piece of metal in my leg from a similiar incident. I learn the hard way. I really wish these guys would wear some safety glasses. A bullet proof vest would be a nice addition as well!
@@Manufacturingvideos10
Where is this? Do they not have any health and safety regulations. Some people have nothing on their feet and one guy nearly got crushed when the machine slipped - Horrendous!
The scale of this blows my mind! It looks like a pulley for a serpentine belt, and an automotive flywheel, but the men would have to be some tiny little elves! 🤪
Safety LAST! Safety shoes, hardhats, eye and ear protection plus many other safety issues disregarded.
Not to worry, we have many people to take up the positions of the disabled/deceased! Wow!