Disassembling the transmission out of a Cat D400E Series II truck and looking for a failure that would explain why the truck was taken out of service. Contact Email: kt3406e@gmail.com
Yes, LU stands for lock up. But no, on this machine that port is not used. It should be plugged, with solenoids in the UP and DN ports. I have no idea why the solenoid was in the wrong spot.
@@KT3406E maybe they reassembled it incorrectly after a clutch replacement? Seeing as those look so damn good save for that one hot steel, perhaps somebody just screwed up the solenoid placement?
when you say, I don't know how much interest this video will get, I want to scream; PLEASE don't quit making your vids! Quit doubting yourself Pal. Your expression of technique & knowledge is well appreciated...even valued. Thanks again for having me and the others along.
Right? Every piece of that is almost like a work of art. The fact that someone sat down at a drafting table and willed things like this into existance blows my mind.
All the old engineers who grew up on farms were way way way more talented then the engineers we have nowadays. Engineers had to put time and effort into designing equipment and had a much greater respect for how things were put together when it had to be drawn on paper and manufactured with simpler machines. They didn’t have the opportunity to quickly throw together something in CAD. Revisions took a tremendous amount of time so they thought about designs before having parts made. The corporate fucks didn’t meddle as much in shit either.
Correct! The precision build of each part, the brainiacs that designed all these gizmos, it's just awesome to me. And, as far as I see.....NONE of it was "Made in China".
I think it was Sparkles that left that socket in there as sabotage.....he was mad all the other men in the shop started drinking Coors Light or Miller Lite instead of bud light
I think you’re on the right track as far as the actual transmission problems. The valve body definitely looked bad when you separated it. It doesn’t take much as you know to cause issues with any kind of rust or debris in there. Torque converter should be a quick tear down and will tell the rest of the story. I hope you decide to make a part 2 to this. I’ve been missing your videos. Good to see you back.
The durability of the engineering on this stuff just blows my mind. Also, i know enough about wrenching that i could maybe get this thing apart. But i know for a fact id never ever get it all put back together correctly! Insanely impressive how you can just do all this stuff. Love these videos
The ability of big gear to put in like >15 000 hours of work in absolute hell conditions yet still look like new will never cease to amaze me. It seems to me that 90% of major failures boil down to human error in some way, shape or form.
Usually is. 90% of dozer transmissions we get, 2nd speed is burned out of them from operators trying to push in 2nd. The other 9% is first speed burning out just over time, and 1% is an actual failure
This type of video is why I love this channel. To see the amount of engineering, the amount of precision machining, the levels of complexity all to get one 40 ton Cat haul truck transmission to accurately shift through its gears and move huge amounts of dirt around mines and construction sites. It is a beautiful thing. And then we have our host's dry as hell well look at this shit here monolog, it's a great combination.
TEARING IT OUT AND CLEANUP LOOKS HARDER THAN THE ACTUAL TEARDOWN. YOU MAKE IT LOOK EASIER THAN IT PROBABLY IS. YOUR WORK IS COMMENDABLE AND ENTERTAINING! 👍👍👍👍👍👍
This Big stuff is just fascinating and very interesting. As a journeyman mechanic this is enormous yet complex. I also watch Western Truck and Tractor Repair and all of the heavy duty work that Warren does there. I've even worked a day with him. Great guy!! Thanks soooo much for going through this large transmission it sure give perspective to the work load that this equipment has to do!! All the best from Canada
Man. Idk why but I just have to watch your videos. I never owned, or never will own any construction equipment like that. But your knowledge and authenticity is special on YT so i'll always support.
I love this channel eventhough I'll never own or work on any type of equipment like this. It's just so incredibly fascinating. I just wish the content was MORE frequent. The bit about the damn crickets was hilarious.
I love the content you make, none of the inflated bs or sponsors you see in other videos, just straight to the point. I look forward to each one you make
That eight seventy one is one thought cookie. Haliburton has hundreds, nay thousands of those engines all over the world. Great video, thanks for making it. PS, the crumple zone on the Bus was impressive! Best wishes.
Thank you for another excellent video - no b.s. just solid commentary and showing how to get things done. Thank you for your time and efforts that you have taken in all of your videos sir!
LU usually stands for Lock Up, at least in Allison transmissions, which is the friction clutch that engages the pump and the turbine of the converter together, making it to spin at the same speed of the engine. I dont even know if this transmission is equipped with that
Please Dont Stop Making Your Videos. I have watched everyone you have posted. We understand that making these videos take a lot of time, but we will always be here to watch them. thanks for taking time out of your day to show us.
I used to work as a technician at john deere for over 10 years, so I know what it takes to perform this job. It's definitely not beginners. Nice work!👍
Watching you and Warren are not only enjoyable but you two tell it like it is. And informative as well. Thanks for the lesson and a look in side. Keep them coming.
I am still surprised there aren't a couple million subscribers to this channel ! His destruction videos are epic. But the teardowns of this big machinery is beyond compare ! Speaks in clear calm English . I look forward to every video on here ! 🌵
Had a really shitty day, finally sat down to eat and watch a couple videos and BAM! Made my day seeing you posted a new one! Always fascinating seeing the scale and quality of these parts and pieces that make up these amazing machines. Really appreciate your efforts every time. Great job!
It’s amazing to think about the massive amount of torque and pressure that unit is under during use. Someone stuck with a loaded truck can grenade the entire system. Nice work.
You would think it would be designed to not break anything if the wheels can not turn, that transmission sure looks complex,Andrew Camerati bought a wiggle truck and it had a bad transmission so he sold it and bought another truck that works,lots of electric stuff on those to control it, a manual one is much simpler but I think all those are auto so no choice but to have go auto unless real old ones were manual
You really have the perfect mindset/attitude for dealing with big equipment; respect for it without being intimidated by the scale/size of the parts and assemblies that are involved. Thanks for the video! If you make ‘em, we’ll watch ‘em.
What a great video. This gave me flashbacks of working at a farm implement dealer in the late 90’s. A Powershift transmission sounds simple until you start tearing them apart and have parts scattered across the shop. I appreciate the no nonsense commentary. I especially liked the Cricket comment, I’m sure some people would think you could control the cricket’s chirping. That looks like a bunch of expensive parts if you had to buy them from CAT. Looking forward to seeing the rest torn apart. Thanks for taking us along on the adventure.
Great video. I love working in transmissions and this was fascinating to me. As to the failure... I'm wondering if they had a failure and did a DIY repair where they failed to really clean anything (explaining the obvious material found at the beginning), and just replaced the frictions. That would explain the overheated steel - that was from the previous failure. They put it back together, and put the solenoid in the wrong port, then gave up when it failed on them again. Based on the yellow washer and the free socket, I'm betting this was a DIY repair by whoever owned this thing. It would explain a lot. PLEASE upload the rebuild video. I want to see this thing go back together!!!
Man that is so satisfying to watch the power washer clean all that grime off. These things are beast, I could never imagine rebuilding one, which is why I love your videos.
Good stuff! Massive Transmission...all seemed clean, no bits and pieces other than the fine glitter, at least there weren't teeth of gears in the bottom or something! Definitely tear into that bad boy...loving seeing heavy equipment internals and stuff Keep em coming!!!!
As a mechanic working on Automotive applications I have to say watching somebody else disassemble a transmission of this scale gives me heart palpitations LOL love the content bud. Keep it up, it's love to see that transfer case
That was cool. Everytime i rebuild a transmission everyone freaks out like its some magical box that shouldnt be touched. Their so easy yet so complex.
Stunning to acknowledge the brilliant minds that design machinery like this. Through much trial and error, over many years, the final product is put to use. To think every single piece, part, component had to be designed, tested, by someone, not some computer, is awesome.
Hi 👋🏻 buddy. I’m no engineer of any kind but love engines especially trains 😊 I find your tear downs very interesting and your sense of humour makes it perfect 👍🏻 Cheers Stevie 🏴
Thanks for taking the time to post up these videos. They mean different things to different people. I for one like to listen to your dulcet voice and no bullsh!t take on life. Reminds me of the old folks from the Okie branch of my family.
Your content is really enjoyable to watch. It's a nice slow and relaxing pace with a person who knows what he's talking about. Its a nice learning experience. Your doing excellent Mr. Please, if you can, keep up the amazing work.
That's insane seeing the size of the clutches, steels, etc. The center support on that thing weighs more than the entire case on the 4r70w's I mess with.... just so cool to see it's essentially the same damn thing, just a helluva lot bigger. Keep 'em coming man- we appreciate it!!
LU = lock up If the Converter has a clutch in it, that solenoid may be to control it. As an automotive transmission rebuilder I am just guessing. I found this video super interesting ! appreciate all your other videos !
Such an awesome interesting teardown and most importantly somebody who knows what they are talking about and doing, thank you Sir for your time and effort, I am in here for the long haul
KT, if those are anything like a normal automatic, those clutch disks do NOT appreciate water AT ALL. They will come off what they are mated to. Also, when you replace them, I recommend you soak them in fluid before installing them in a clean unit. Soaking them will bring them to their standard, in-use, stack height, so you can get your clearances and stack heights correct. I would also check the book for all of those load springs to ensure their heights are within spec. When you are looking at the planetary gears, check them thoroughly to ensure the load washers between them and the housing are still in good shape. I bet those are fairly costly to replace if they are bad. I have watched you while assembling something and you are exceptionally particular with cleanliness, this is one crazy aspect where that OCD is well worth it my friend - surgically clean is best. (LOL) I really appreciate watching what you do - KEEP 'EM COMING!!! (Looking forward to you and that valve body)
Keep doing the tear down! It's very satisfying watching you take things apart, explain how everything works and ultimately finding out whats the root cause of the issue. I'm all for seeing you tear everything apart, even if there's nothing wrong with it.
KT... love your stuff! You are brillant beyond your years and without any formal training or mentor... Truely outstanding. I have watched every video and I will continue to do so. When my long awaited ship comes in, I will commission you to build me a 3406.
KT3406E, I really appreciate all Your videos! I always learn something new every time I watch Your videos! Even tho I don't do a lot of work on this type of diesel equipment, its always interests me how they work and operate! When it comes to this stuff You are the best of the best (IMHO) Thanks so much for sharing this with us and look forward to Your next video! Cheers DC.
the metallic particles you found at the start are perfectly normal for a transmission of that size, as long as it is "dust" and not "needles" you shouldnt worrry about that. every piece looked brand new, im willing to bet that's not where the problem is, if there is any
You make it look so easy.great video as always. Definitely ready for the next one. Crashes,burnouts and major plant rebuilds. Best channel out there...
Man KT, I came fer the 379 and to learn about the E and C15s and totally stay fer the insane amount of knowledge, I would no sooner attempt that procedure and you just make it look like me opening a candy bar. Thx fer taking time to edit n post this type o work, I am a 50 yr old "carpenter" that loves trucks and you really have a great channel! I gotta say ol Hank was right when he said "a country boy can survive" and you clearly THRIVE! Would really dig a lil back story about how ya got here! Whoever was yer mentor is an amazing fella! Cheers from Santa Cruz Ca!
You said Shaft so many times, I started singing your theme song 🎵. “Who is the man who checks the planetary gears and sets. KT3406E! You damn right!!!!”
fantastic content, (to me)!! "I" would be alarmed at putting all that back together, he is so nonchalant, comes with years of experience, and thorough too. THANKYOU😊
I very much appreciate your videos. The valve housing is probably the culprit and going this far into it, you are almost duty-bound to find the problem - at least the OCD part of me would not be able to let it go..
G'day.... Another cool video , Those clutches were so clean n tidy its hard to believe unit wasn't overhauled before you got into it . Thanks for sharing it with the faithful . I always enjoy your vids ,, some of the best techo stuff on YT. Respect......!
You use the perfect amount of fast forwarding in your videos. I am always amazed at the engineering that enables an automatic transmission. I hope you follow up on this transmission as to what you think was the cause of it's demise. thanks.
