Rebuilding the Final Drive on the 120 Lets try this again
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- เผยแพร่เมื่อ 27 ก.ย. 2024
- shop Dirt Perfect
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The parts have come in and its time to get the 120 back to work. Detailed overview of the finial drive rebuild on a excavator.
#120backtowork
#dirtperfect
#truckortrack
#shopwork
#backtowork
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I don't know why anyone would question you on the tracks but there are all kinds out there and in numbers. This video is telling me to do something as my right drive is weak and needs to be replaced or rebuilt. Thanks for another good one, Mike.
Good luck getting your excavator final drive back together Mr Dirt Perfect
Very interesting. By watching your videos ima learning more about heavy equipment. Thank for letting everyone watch 😊. Love ❤️ your content
I’ve been trying to figure out how these work inside, and so far this is the best video I’ve seen. Notice the outer planetary carrier spins within the ring gear, but the second stage (inner, closest to the drive motor) planetary carrier is stationary, and the planet gears are the ones driving the ring gear from the inside.
I love to see a good guy like you Win!!
Thanks
I always enjoy the shop videos
Thanks buddy
Always enjoy your shop videos mike 👍👍
Thanks
Looks like you got your baby back again, All ready to go......Good job.......
Thanks bob
You are an excellent technical instructor and at the same time you maintain humility ....when you mess up you admit to it!
Error is to being human. ....
That's why I come watch n learn from the best here.
Thanks Alex
Keep up the great work love your videos thank you
Mike, you would make a great teacher for vocational training school if you ever got tired of sitting in the excavator.
It is amazing the engineering of these machines and the abuse/use these machines endure over the years! Thank You for a most informative video, I liked it!
Thanks Jim
Great video Mike y'all have a great weekend and stay safe 👍
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Enjoy watching you repair the equipment yourself. Not only saving money but learning so much about your equipment.
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Wow! YOU MADE THAT LOOK SO EASY. I think I will keep to my job of teaching Middle schoolers that is a lot less confusing.
Thanks Brad
Glad ya got the JD goin!!!
Love your shop videos
Thanks
Love watching these shop videos, my '75 JD 410 backhoe just started knocking hard and the oil filter is full of metal. Just ordered a engine rebuild kit and tearing it apart tomorrow!
Keep up the good work!
Thanks buddy
@@DirtPerfect Feel free to come help lol
Great job Mike. To see it all go back together is amazing. Thanks for sharing 👍
It amazes me how all these parts do something in all those gears. I love watching you guys work on your equipment but my favorite one was when you worked on your Mack truck.
Good job Mike.
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Like the shop sessions DP.
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There is something so satisfying about repairing and keeping the old equipment. I love new equipment. but I feel better when I revitalize the older tools. It's great to see the look on your face when you start it up and see it work like new.
I agree
Planetary gears: like the center of our world... what drives us, takes the most abuse. Good catch 👏 👌 on that wear. The fresh lube will certainly help as well. Nice vidja Mike. Cheers!
Always love the shop videos! It’s all part of the job and I think it’s cool you do your own work on equipment!!
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I think you can’t wait till Gunner is a little bigger and he’s on the job site with you. I can hear it in your voice❤️👍🇺🇸
What an informative video. Gunner gets quality time with dad. Stay safe
Thanks Bruce
Loved it. Very informative once again Mike. I really like working on equipment too besides running it. That way you really get to know your machine. And when you here a noise you pertty much know what it is. Well some of the time.... Good job DP.
Thanks Mark
Glad to see the 120 back to work fancy braking it in the first place love gunner helping you out making shore you doing it right lol
The smile on your face is like that of a new dad in the delivery room!!
😁
Must be a great feeling to get the old girl working again! Great work Mike!
Yes it was
Glad to see her going again!
The prop shaft(driveshaft) is a wear item made from inferior material to the internals. They make it that way so if the machine is dead you can easily remove the shaft to get the machine in the trailer.....at least that's what I was toukd by a old-timer.thanks again for the amazing family content.
Bad your boys smart to supervise at work
Another awesome video!
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I bet it takes more time to learn how to work on the equipment than it does to operate it the equipment. My winter goal this winter is to try and get some maintenance knowledge because I have none other than basic stuff. Nice video Mike.
Thanks buddy
Poor Maggie. She still showed up to sweep the floor though. What a trooper!
"...test out the old light on the new Deere." Wow, I thought it was the new light on the old Deere, LOL! Good to see life in the 120 again. Thanks for sharing.
thats what we learn to deal with when we run older metal! but i love that i dont have to deal with any emissions issues with my dozer that i do with my farm tractor and bobcat! enjoyed it! stay safe friend!
Nice dash WOW!
Good job Gunner!!!... Pickin up the slack. (y).. :)
Another outstanding job well Done Mr. D. P. .
No matter what, that gear oil can't possibly smell worse than that skunk's spray did 😝
I don't know, those two smells are horrible, not sure which I hate more
The smell of burnt transmission fluid mixed with metal and clutch material is pretty close to old gear oil. 🤮
While an old video, it was a Most Informative video, Mike. I'd long wondered if the tracks operated from electric motors, hydraulic or mechanical (direct) drive. NOW, I Know!!
Glade you enjoyed
I really enjoy the shop videos, especially when there's something to be learned. You seem to enjoy wrenching, even though it means something is likely "broke". thanks
Lol thanks
These shop videos are almost as awesome as the dirt flogging videos! Thanks for sharing!
That Campground Guy
Thanks Michael
@@DirtPerfect I managed to adjust my profile.. now for a video!
That's awesome teaching yo kid young.
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Mike since ur so good a building u should build a camera holder that u can use at ur bench and beable to move it with ease and move it to were u want so when ur videoing u can use both hands. Ur great at what u do. Thank u again.
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Interesting Job Good work
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Great video! You passed the mechanics test with flying colors. You never once asked for a "bigger hammer ". Way to go.
Thanks buddy
Good job you know what you are doing D P ace 👍
Great job.
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Nice to see those safety crocs.😁 Another tip is to fill through the vent hole so it's easy to see when it comes out the level hole.
Good morning Mike. Well your baby is going again. Can't wait for your next video to see her working. Take care and don't work to hard.
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She's ALIVE, just love your explanations on how things work. You would make a great teacher or guest speaker at universities and colleges. Gunner gets more handsome. Stay safe and thanks for the content.
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Your Mack training has really paid off for you, I would not have a clue where to start on this, and to boot I would probably end up with a box full of bolts etc. !!!!
Good too see Gunner helping out, even if it was only for a short time, too busy driving his cart around!!
lol thanks Alex
Another great video. Makes me think I can rebuild mine when it take a dump.
👍 Somebody's doing his happy dance!
Just wondering... while you were assembling the brake discs and frictions, I noticed that you didn't line up the splines on the discs. There is a bunch of teeth then a space then more teeth another space etc. I would think that if the teeth and spaces arent lined up with the teeth and spaces on the outer housing, you would risk pulling the teeth of the discs. Just my thoughts.
I notized that to, they where not installed correctly, and the first shaft to go in caused the seal spring to come loose.
@@zephyrold2478 I'm no expert so I was just noting what I saw.
That gear looks like a big ole clock. Like the way you explain how things work and go back together.
Good tutorial on final drive inner workings. There is a large main bearing in this assembly that deserves attention. The adjustment is critical because if it is not within spec, the metal faced seal that keeps the oil in the gear housing could begin to leak. There is a large nut behind the primary planetary gear set. This nut adjusts the preload on the bearing. My final began seeping a little oil so I tightened this nut and it stopped the leakage. You can do this without splitting the track.
Thanks David
@@DirtPerfect 👍
Awesome that you got your baby fixed
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You know you got to have man behind the scenes helping with repairs. But it looks like you knew what you were doing. Liked watching Gunter help.
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Just a tip. Next time you rebuild any hydraulic pump or motor, have a squirt can full of new, clean oil to lubricate all moving surfaces as you re-assemble. When you installed the new Rotating Group (Piston Block and Pistons) the Swash Plate was dry. The lubrication for the Piston Shoes to the Swash Plate comes through the Pistons, through the Knuckle, to the center of the Piston Shoes. Oil under pressure supplies this lubrication. Since this is a high speed, low torque motor it typically runs 600 rpm minimum. When you start up a new or rebuilt unit dry, the Piston Shoes are riding on a dry surface. Since the Piston Shoes are Brass and the Swash Plate is hardened steel, the Brass Shoes lose the battle of what wears first when no lubricant is present. Also rotate the housing to its side. This way the Piston Shoe will not drop out off the Piston. 53 years in the Hydraulics and Pneumatics business has been a tremendous learning curve. And I still have more to learn.
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So that is how a final drive goes back together - its not magic after all! Thanks for the great video Mr. DP!
Lol
Love the shop videos 👍👍
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Those tracks are on backwards🤣 Great informative video!
Great video I am pleased for you get digging
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Nice job
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I rebuilt a Bobcat skidsteer drive motor for my neighbor once, not that complicated, great job!
Thanks And awesome
Nice 👍 job
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Well done. I am proactive like that as well. My father says I waste money “hunting boogers” lol. We argue a lot lol. However I believe I’m saving time and money.
great video ,,2 things i seen when you hooked the track back together the pin was it installed all the way ?? and the 2nd thing ,, when you repaired the light you left a wrench on the boom ??? dont know if you left it or got it off camera .. that is how people loose tools ... or get hit on the head .. like when people leave a hammer on a step ladder .and you move the ladder ugh beep and a few choice words later ... keep the videos coming there great ..
Yup got it thanks
Always entertaining!! Good stuff1
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Good call on the Whole Kit and Cabootal
to replace the other side drive pin
wish you get some Muscle Oil additives
it creates less friction
which makes less wear
Epicyclic Gear Train
Primary Drive Gear - Sun Gear
Rotating Gears -Planetary Gears
Outer Ring Gear- Annulus
You’re Welcome 👍🏼
I was wondering if DP lived in a different reality where the sun circles the planets. Glad to see he recognizes the sun is in the center and drives the planet gears/pinions that drive the ring gear
@@idadho Could be a closet flat Earther 👀 😬
Hey Mike if you were to inadvertently let that slip on one of your videos you might get yersel a few 1000 new subs from the Tinfoil Hat Flat Earth Society 😉👍🏼
Hopefully its fixed for a long time. Good video.
Me to
I hope you still have the 120 come the day you retire. I think you have feelings for the old piece of iron!!
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Well done as always...
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Can’t thank you enough for posting this video for starters, it’s going to save my son and I thousands on a new final drive! One question I have is where do you buy that $1200 rebuild kit from?
It’s been a few years but found the part number on jd parts looks up and searched on the internet
Thanks much appreciated!
Question?? When you installed the brake plates they had teeth and blank spaces between them. The outer gear housing also had that. Should they have been lined up or does it not matter that you just dropped them in and had teeth from the ring not in teeth on the housing? Just curious cause I'm about to tear down my case 130 for the same reason. One track not pulling, motor turns, I'm betting I will find the stripped shaft aswell.
Don’t think it matters but put them in the way they came out
It does matter. You really need all the contact. But it will work for a while.
Gear oil smells like decaying dinosaurs. What a coincidence. Lol God bless
That was a lot of slack in the left side drive gear but boy it sure tightened up nice. Love the shop work.
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Christmas came in November!! What about a paint job or at least a wash. 2 years ago after the cat 5 we bought a 120 D found your channel and have been a fan ever since. The other machines are cool but the 120 started it all. Keep up the good work
I guess since you have two machines you can churn out twice as much work now? Lol. Thats what my wife expected when I bought a second tractor. I told her that was the plan and she needed to learn to operate one of them so we could accomplish that. She hasn't mentioned it since. Lol. Nice vid, stay safe boys.
That’s the plan
Getting the shop clean is better than messing it up on count your in the winning side of things "hopefully" and I don't know about you but when they leave comments on how wrong you are, just how much dog in the fight do they have.... your esteem must be off the charts. Now order a new seat thats really good for your back so you don't wind up old before your time.... then "Mary Poppins" it to the new job site.
Mike the poor dog looks like me after visiting the doctor, looked fine when I went in but when I come feel as though the whole world is on my shoulders LOL.
Lol
good video
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Good vidja , got to love kid's cool to see that Gunner is out there ! Buy the why glad you oiled your track's so they don't sqeek 😂😂😂
Like the video on new JD .
Thanks buddy
Putting that young man on the end of that gear oil pump would be todays equivalent of naming him Sue ( reference to Johnny Cash song ) for those younger viewers… by the time he’s old enough to realize and several fifty five gal barrels of viscosity’s later he will appreciate the business side of the corporate family tree after all … go karts don’t grow on just any old tree at least not “dirt perfect” ones . 💰😎
Fine help you've got there Michael. Gunner is man on the scene. Lol.
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I can't believe how much clearer the windshield is on the 120 vs the volvo! 😁
Almost made it look easy. Nice to see the old girl ready to work again but then you go throw her outside instead of a nice warm shed.
Kids make things so simple
That shaft might be a good,4 or 5 thousand hour replace thing. With an oil change.
Haha just pumping away and forgot to pull out haha 🤣..
😂
I noticed that you used the good ole Milwaukee instead of the Dewalt lol good decision 😄 you will be even more happy with a Milwaukee grease gun
Took a crap 2nd day I had it
I think I just saw a happy tear at the end. 😉
😝
Hehe, Mr D.P. is haaapeee!
I always wondered what a final drive looked like inside and how it works. I’ve only removed the two plugs to drain and refill.
now you know
Lots of knowledge on this repair. Gunner is getting quite a lot of education-he knew when it was time to play !!
Thanks John