Rebuilding an excavator swing device part 1 of 2 (Hitachi EX120-2)

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  • Опубликовано: 3 дек 2024

Комментарии • 334

  • @jb_makesgames2264
    @jb_makesgames2264 Год назад +110

    Your videos are some of the best on RUclips - your knowledge and attention to detail are head and shoulders above 99% of every one else.

    • @RobertFay
      @RobertFay Год назад +6

      *- Agreed. Thank you for saying what is needed to be said for all of us.*

    • @kiiiisu
      @kiiiisu Год назад +3

      yep!

    • @jlucasound
      @jlucasound Год назад +3

      Oh Ya!

    • @fabs3771
      @fabs3771 Год назад +1

      So True 👍🏻😊

  • @vinnyhern
    @vinnyhern Год назад +11

    do not envy you doing the work and the cost! however it is entertainment at its best. I hope youtube compensates you well. it really looking like you have to split the house and the undercarriage to change that giant seal... >👍👍

  • @nathaniellarson8
    @nathaniellarson8 Год назад +51

    The pistons do not have to go in any order. Yes, you would feel the slop. Another good test is to cover the hole in the bottom of the barrel/block with your finger and see if it pushes air and pulls vacuum when you move the piston in the bore. Usually there is a small hole in the middle of the piston slippers that is used for lubrication, blow air into the back of the piston to make sure that there isn't any junk in there.
    I rebuilt pumps and motors for a few years and work at a shop now where we do mainly cylinder work. Hit me up if you have questions.

    • @jackrichards1863
      @jackrichards1863 Год назад +4

      Excellent resource is a man who knows the finer points. I hope Matt is keen to touch base on these parts with you? I'm certain if done proper these things will go for an age. Done with oversights you revisit the same thing repeatedly. As I have witnessed. Great offer and the tip on blowing the shit out of the pistons.

    • @JimsNBHomestead
      @JimsNBHomestead Год назад +1

      Then you know bench testing the motor is step one to determine the condition of the motor. I have 15 years of experience with equipment and the first step is proper diagnostic testing either in or out of the machine. Ripping apart a motor just because is pointless

    • @nathaniellarson8
      @nathaniellarson8 Год назад +3

      @@JimsNBHomestead I wouldn't say pointless to not test it beforehand with all the water he found in the system, definitely not ideal though.
      I will say, the pump is going to be a different beast, that might be a can of worms if he digs into that.

  • @danielwaters6131
    @danielwaters6131 Год назад +53

    You have my admiration for your willingness to get into the workings and take everything apart to find the root causes of failures. Then to put it all back together! Makes me wish that I was healthy enough to emulate your work, Great Job!... Looking forward to your next post.

  • @ianwille5780
    @ianwille5780 Год назад +2

    That sound of that oil and water running out reminded me of the day after having subway for lunch then Taco Bell for dinner. Charlie is a good girl!! Give her love for me and play lots of ball with her. Can’t wait until the next Charlie and Matt show!!!

  • @dans_Learning_Curve
    @dans_Learning_Curve Год назад +9

    Just what I needed! Was wanting something quality to watch!

  • @veccio65
    @veccio65 Год назад +3

    I like your dog. Nothing like a pesky fido when your trying to work.

  • @enzop.3227
    @enzop.3227 Год назад +6

    I’m here to see Charlie

  • @bayman49
    @bayman49 Год назад +2

    I love how you tear into these daunting projects with so much confidence..

  • @Poppi2006
    @Poppi2006 Год назад +8

    There may be a lot of your subs who are not in the business but just love watching old iron being revived. I did actually touch a Kubota mini parked in my backyard when the sewer pipe was being replaced. I probably touched an old road grader in the late 40’s working on our gravel road. Keep wrenching!

  • @jlucasound
    @jlucasound Год назад +2

    I'll bet you were happy when that hole in your shirt turned out to be the perfect spot to mount your mic.
    🤣😂 Seriously though, Matt, that Dozer came out mint! I can't wait to go on the adventure of rebuilding this machine. I love dozers but these machines are my favorite! Thanks Matt! And be careful! 🤩😀

  • @npsit1
    @npsit1 Год назад +9

    I like watching your videos on this equipment because it's unusual. Everyone has videos on getting an engine to run or doing standard automotive work. Very rarely do you find rebuilds on the stuff you get yourself into. And you follow the manuals to do it correctly. Good job.

    • @andyfairman7812
      @andyfairman7812 Год назад +1

      Took the words right out of my brain. Well said.

  • @GONZALOARTECHE
    @GONZALOARTECHE Год назад +2

    Matt, I want to see the full restore of the excavator. It will be great.

  • @DeirdreHickey-nx8nt
    @DeirdreHickey-nx8nt Год назад

    Hi, you said you didn’t know anything about excavators in your earlier video. Well you sure know your way around the gears and hydraulics and everything else as well. And it’s great to see that you take your safely as your number one. You are one very knowledgeable guy. 👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼

  • @davidkeys1879
    @davidkeys1879 Год назад +4

    Off brand oven cleaner is an inexpensive degreaser. As usual I’m amazed at how much you are able to take on and finish.

  • @jlucasound
    @jlucasound Год назад +1

    I ❤ Hitachi! (I have a Hitachi drill press. 🤣I LOVE it! Hitachi makes machines bigger than Matt's! I am surprised they don't make motorcycles.)

  • @terryrogers1025
    @terryrogers1025 Год назад +1

    You have, I my opinion for what its worth, made some good decisions on what to replace in the swing drive. It is a good idea to mark referencing/ witnessing marks on every thing that comes apart for any reason on everything you can, that practice has saved my bacon numerous times over the years, the other rule in hydraulics is keep it clean on reassembly, if you think you you have clean, clean it again, especially when working on spool valves, the ole boy that trained me in/on hydraulics was a clean freak. You are going to have an awesome machine when you get this up and running again, looking forward to this series, thanks for the update.

  • @CSWmanofsteel
    @CSWmanofsteel Год назад +1

    Oven cleaner is the cheapest way to degrease stuff and it works great 👍🏼

  • @davebrittain9216
    @davebrittain9216 Год назад +1

    You are going to have a really nice unit when done.

  • @johncooper4637
    @johncooper4637 Год назад +17

    It is possible to repair that part that the seal surface was messed up on, however the cost may be as much as the new part: Flame spraying is ideal for surfaces like that. It is often used to repair galled surfaces on shafts where bearings rode.
    I look forward to following your adventures with the excavator as I did with the Cat.

  • @bruceparker985
    @bruceparker985 Год назад +1

    Oven cleaner works damn good too for decreasing stuff.

  • @raincoast9010
    @raincoast9010 Год назад +2

    Brave man to tackle this project. Great dog!

  • @0dbm
    @0dbm Год назад +8

    Excellent editing , excellent work , love your style , “ just the facts please”

  • @ericball6894
    @ericball6894 Год назад +1

    Here we go. Let's dig in brother

  • @venomizd93
    @venomizd93 Год назад +2

    Love your pup, mine is the same way w his ball

  • @Ebikelover
    @Ebikelover Год назад

    You are brave for taking on rebuilding this unit, but you will save thousands from sending it out. love your thouroghness

  • @onebadsavage26
    @onebadsavage26 Год назад +1

    I see your dog is as helpful as always.😃😃

  • @andrewcooper8980
    @andrewcooper8980 Год назад +1

    Oven cleaner is the best degreaser. Plus it helps with rust

  • @PeterLee-zn3jl
    @PeterLee-zn3jl Год назад +2

    I still say- your blithe assurance and confident progress belies your naivete etc....your sensible approach and sure luck are a bonus...!

  • @fundi_mike
    @fundi_mike Год назад +6

    Great start - maybe it would be an idea to invest in some tools for making/crimping hydraulic hoses yourself? it seems like this one will need alot of new hoses before it's done

    • @nathaniellarson8
      @nathaniellarson8 Год назад

      Not enough hoses there to invest in that, just wouldn't make sense. Colored wire, paint pens, and Parker stores are your friend.

    • @paulmanson253
      @paulmanson253 Год назад +1

      There are assemble yourself reusable hydraulic fittings. Not sure if worthwhile here.

    • @fundi_mike
      @fundi_mike Год назад

      @@nathaniellarson8 it would be where I am at - here you see these tools fairly often come up on auction at a reasonable price - but I have no idea about the pacific northwest. Also I would be surprised if this is the last piece of machinery Matt aquire which needs new hoses.

    • @PacificNorthwestHillbilly
      @PacificNorthwestHillbilly  Год назад +1

      I am looking into my options for that right now

  • @SnorrioK
    @SnorrioK 5 месяцев назад +1

    Good thing about bearing is that their strength is also their weakness in that if you put a weld over the width of its border, it cracks. Do that on both outer and inner ring and it comes loose. That's when you can clean everything up, cool the axle (dry ice is nice) and warm (there are bearing warmers out there) the new bearing and it should plop right on.
    Also, 21:18 - cute robot head you found there.

  • @leighwalker3914
    @leighwalker3914 Год назад +2

    Nice video Matt, thanks in taking time to record edit and share.

  • @GarnettM
    @GarnettM Год назад +1

    Oven cleaner is fantastic for doing motors,Spray on Leave overnight times it'll even remove paint

  • @PeterLee-zn3jl
    @PeterLee-zn3jl Год назад +1

    Your blithe assurance , calm attack plus good ENUFF luck has been your bonus- so far..! Good luck

  • @PoteauCowboy
    @PoteauCowboy Год назад +4

    Much better video editing and commentary.
    Improvement....
    I look forward to seeing most of the mechanical parts on the excavator.
    Glad you are continuing the videos.
    Entertaining and Instructional.

  • @dm55
    @dm55 Год назад +1

    Excellent video quality. 👍 Your dog reminds me of when I had a black lab. I simply existed to throw the ball. 😃

  • @Contantq
    @Contantq Год назад +2

    My Shepard is just like yours! She just wants to play all the time dropping her toys into whatever I am working on.

  • @surindersandhi3924
    @surindersandhi3924 Год назад +1

    Very Good Job My Friend ❤❤❤❤❤

  • @alanm3438
    @alanm3438 Год назад +9

    You are the best! I'm glad that the dog is there for support. So many parts. It looks like you may have saved it just in time before more damage was done. Once everything is clean and inspected you should be in good shape. May the force be with you!!!!!

    • @paulmanson253
      @paulmanson253 Год назад +3

      Matt would be well served with someone sending him a good sized box of used tennis balls. Or the dog would,which amounts to the same thing here.

    • @buttonmonkey6845
      @buttonmonkey6845 Год назад +4

      And one of those machines used for tennis practice that keeps throwing the balls out automatically 😂😂

  • @donlatimer5114
    @donlatimer5114 Год назад +1

    Met a suggestion for you , get a three ring binder with plastic sleeves to put your repair manual in it to keep clean and in order.

  • @davidfist7801
    @davidfist7801 Год назад +1

    Yes, it definitely looks like a big giant complicated mess! You have more guts than I do tearing into that thing! Kudos!

  • @SuperMAZ007
    @SuperMAZ007 Год назад +3

    Actually looks less complicated than the D4. Most of the wear is just from sitting water stuck inside the housing. Very interested in seeing more of the rebuild in the future.

  • @davidwindsor4632
    @davidwindsor4632 Год назад +1

    Degrees inside of the slew ring. And a good wash out and fill with some oil
    And cover the hole while working on the slew motor.

  • @kirk467
    @kirk467 Год назад +6

    Always good to see you Matt!

    • @kirk467
      @kirk467 Год назад +1

      Thanks Matt! 🙏🏻🙏🏻🙏🏻👏🏻👏🏻👏🏻👏🏻👌🏻👌🏻👍🏼👍🏼🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

  • @wuggacrt
    @wuggacrt Год назад +2

    Whoa ho, here we go again, anticipating lots more.

  • @clintonroushff7068
    @clintonroushff7068 Год назад +3

    Matt, you are so brave. I pictured the springs flying everywhere! Lol
    Take care

  • @333mikeray
    @333mikeray 4 месяца назад

    I am so glad our company just does short term leases and we get new equip delivered each year or so, I cant even imagine the down time on this type of issue. Plus we got rid of all the mechanics on staff, not that they could pull off more than a grease job.

  • @nicksacco6024
    @nicksacco6024 Год назад +1

    Hey Man, enjoying your rebuild of that beast! Looking forward to more videos.

  • @House0399
    @House0399 Год назад +1

    Thanks for taking us along on this adventure.

  • @jimwoidyla5139
    @jimwoidyla5139 Год назад +1

    You must have big brass ones for jumping right in on the hydraulics! Hydraulics and electrical are my two worst things to tackle, I envy you right now the way you just jumped in head first!

  • @timeinbu7909
    @timeinbu7909 Год назад +1

    Looks like fun...
    The whole thing Looks pretty complicated for just a swing motor.

  • @1971VoiceoftheMummy
    @1971VoiceoftheMummy Год назад +4

    New Project! Yes!!

  • @smokeybailey3080
    @smokeybailey3080 Год назад +1

    Good video. I new that was going to run in your arm pit I’ve had it happen so many times but you remained calm

  • @brucejohnson3905
    @brucejohnson3905 Год назад

    Out of everything I subscribe to here on RUclips, these are the videos I look forward to the most.

  • @ciaranconeely8579
    @ciaranconeely8579 Год назад +1

    Comment for the algorithm to help the channel 👍.

  • @ChuckThree
    @ChuckThree Год назад +30

    Super excited for this series. You killed it with the dozer.
    Can’t wait to watch all these videos and justify making my own questionable excavator purchase.

    • @gregthomson7516
      @gregthomson7516 Год назад +3

      I bought a 2005 john deere 35c excavator that looked like it exploded, some parts here👈some parts there👉 couldn't pass it up for $500. It's not nearly as crusty as this one and only has 2000hrs so these videos give me hope too. I found another motor for $700 and need maybe $400 in fittings and hoses. If I can get a working machine for only 2k that will be a pretty sweet deal.

    • @ChuckThree
      @ChuckThree Год назад +1

      @@gregthomson7516 right?! that’s too cheap not to buy lol 😂

  • @loveliberals-pb9yq
    @loveliberals-pb9yq Год назад

    Nice to see the canine help early.

  • @denjhill
    @denjhill Год назад +2

    I just rebuilt the shuttle shifter on my Case 580SE backhoe. What you're doing makes that look like child's play. Good luck getting it all back together.

  • @HelpfulHobbies
    @HelpfulHobbies Год назад +1

    I'm living my life vicariously through Matt's rebuilds. This way my HOA won't yell about an excavator

  • @captnsquid8151
    @captnsquid8151 Год назад +1

    Looks like a jig saw puzzle Rather straight forward and Happy that you do have a lot of salvageable parts. I am Looking forward to more,, Thanks for the video..

  • @shaktisiddha8414
    @shaktisiddha8414 Год назад +1

    Matt, intrepid is the WORD!!! Holy smokes, even with a manual this gives me the heebie-jeebies!!!

  • @ryburnsjr
    @ryburnsjr Год назад +1

    I have a feeling that this might be the start of another complete rebuild of another piece of equipment.. Looking forward to many videos of this one !!!!!😀😀😀😀😀

  • @danielpullum1907
    @danielpullum1907 Год назад

    Matt your research skills are phenomenal.
    Keep on truckin.

  • @tonystanley5337
    @tonystanley5337 Год назад +1

    For cutting off stuck collars/inner races i find its better to grid out a semi-circle rather than cut a slot at an angle. Just use the blade in the same plane as the collar and work at it up and down until the material is thin enough to crack. Its much harder to cut a slot at an angle without damaging the part you are keeping, working in the same plane you can get all the way up to any flange, and you can see the crack when it happens.

  • @michaelb.42112
    @michaelb.42112 Месяц назад

    I just found your channel by accident, and it's addicting because of the pacing, Charlie the dog, and it's interesting technology. I've never driven an excavator, never will but it's fun to watch.
    That WD-40 foam degreaser is what I use and it works Great, as you can see how clean the swing device got.

  • @johncoleman8793
    @johncoleman8793 Год назад +1

    I don’t know if you get credit for multiple watches but count on me. On my EX there is a plug on top near the boom cyl. to fill the grease for the slew gear. The bottom cover you took off is to drain/clean. I believe it’s to be filled with grease vs oil.

  • @Flowing23
    @Flowing23 Год назад +1

    a lot of work, well done.

  • @davida267
    @davida267 Год назад

    Best degreaser I’ve used is Super Clean. Get a jug of it and get one of those gallon spray jugs and fill it with that and some water and it lasts forever since a little goes a long way

  • @mcjok88
    @mcjok88 Год назад

    On our way, fantastic! God bless the project Matt! We luv being a long for the ride.
    Hope you get some compensation from YT.

  • @garypullinger1604
    @garypullinger1604 Год назад

    This is going to be a brilliant series

  • @Mach34i
    @Mach34i Год назад +1

    You Lost your ballpen hammer! Omg the most important tool in your box.

  • @jeffo881
    @jeffo881 Год назад +1

    you might consider using some scotch bright on those pins and bores to remove surface rust and raised burrs, just a thought.

  • @genka2237
    @genka2237 Год назад +2

    Хорошая работа 👍

  • @richardrolph6166
    @richardrolph6166 Год назад +8

    Well done with the progress it's good to see Charlie making sure that you are taking regular breaks whilst working so you don't overdo it everyone needs a four legged furry work colleague to help your well-being keep up with the great work looking forward to the next video

  • @edadpops1709
    @edadpops1709 Год назад +1

    I’m enjoying this a lot thanks for posting

  • @brianelliot2719
    @brianelliot2719 Год назад

    Thanks Matt for inviting us into your barn shop. Great videography! Nice project. Always wondered what was inside those excavators . Thank goodness you have video and manuals to refer to to put Humpty back together again.

  • @JimsNBHomestead
    @JimsNBHomestead Год назад +1

    The term bushing was correct

  • @duncanvowles7100
    @duncanvowles7100 Год назад +1

    great Video Matt.

  • @xne1592
    @xne1592 Год назад +1

    This chaps remorseless, wouldn't want to upset him....

  • @oddvardmyrnes9040
    @oddvardmyrnes9040 Год назад +1

    Learning a lot by watching you. Thanks.

  • @andersslangerup7464
    @andersslangerup7464 Год назад

    Good job. I am looking forward to seeing the future rebuilding videos.

  • @kerrygleeson4409
    @kerrygleeson4409 Год назад +2

    Great work Matt always very interesting 🦘

  • @johnjordan4647
    @johnjordan4647 Год назад +3

    I am in awe of your technical skills Matt 👍

  • @brandonoswald2392
    @brandonoswald2392 Год назад +2

    This update just made my day!

  • @goodness-mercy
    @goodness-mercy Год назад +1

    Great Job! You give confidence - early on - that this "task" will reach completion, successfully!!!

  • @lyleminyard2308
    @lyleminyard2308 Год назад +1

    Great job Matt keep going

  • @carlaustin7398
    @carlaustin7398 Год назад +1

    Great video. Thanks for sharing.

  • @TBMAvenger
    @TBMAvenger Год назад +1

    When I should be doing my work on my JD 6500 or woodworking projects I find myself watching your videos or @Surviving Ringworm before I get started.
    Nice work on the Cat. I can't wait to see the escavator restored to operations.
    Find a steel fabrication shop for some hardwood 4x4 oak pallets. Many around the Thumb of Michigan are available. They have maple & walnut boards on them too sometimes.

  • @daviddailey3857
    @daviddailey3857 Год назад +4

    Great job I think you're right about that seal hydraulic pumps are really hard on you can remember things like putting it back together and stuff I used to work at a hydraulic pumps it's very difficult good luck to you

  • @leninmi7579
    @leninmi7579 Год назад +3

    Throw the ball Dad!!

  • @ianpumphrey5041
    @ianpumphrey5041 Год назад +1

    Really interesting video Matt, sure with your approach, everything will be fine!

  • @robertgarrett5009
    @robertgarrett5009 Год назад +1

    Glad it's not too bad.

  • @patrickjordan7670
    @patrickjordan7670 Год назад +1

    There shouldn't be any water in there only grease that spring you found is of a previous leak (bottom seal) you should clean all that out with diesel and petrol mix and blow it out with power washer there should be nothing in there only clean grease and make sure you seal it with gasket sealer when refitting the swing box the water can get in through the swivel joint as well check the seal on it its visible from outside the machine its like a rubber boot it keeps out water and dirt. Good luck with it 👍

  • @patriotmob3227
    @patriotmob3227 Год назад +2

    I love every video you put out. Always Interesting and informative I dont own Heavy Equipment but I am an operator and mechanic. So thank you

  • @baroja5303
    @baroja5303 Год назад

    buen desengrasante wd 40 tambien lo uso buena restauracion matt

  • @blackbuttecruizr
    @blackbuttecruizr Год назад +3

    Hey Matt, keep wrenching

  • @renem6441
    @renem6441 Год назад +3

    It is a pleasure watching you work with such precision and detail!! Thanks for sharing

  • @Impuritan1
    @Impuritan1 Год назад

    A fellow La Croix enjoyer, nice.

  • @wrstew1272
    @wrstew1272 Год назад +1

    YEY! Excavator neglect 101 explanation in detail 😢. But willingness to get dirty to save thousands 😂. Great stuff,😊

  • @kenc3288
    @kenc3288 Год назад

    In the power transmission industry, this is described as a slewing drive. Just saying....Like the channel. Cheers...😀😀