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

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  • Опубліковано 23 сер 2024

КОМЕНТАРІ • 327

  • @jb_makesgames2264
    @jb_makesgames2264 Рік тому +110

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

    • @RobertFay
      @RobertFay Рік тому +6

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

    • @kiiiisu
      @kiiiisu Рік тому +3

      yep!

    • @jlucasound
      @jlucasound Рік тому +3

      Oh Ya!

    • @fabs3771
      @fabs3771 Рік тому +1

      So True 👍🏻😊

  • @danielwaters6131
    @danielwaters6131 Рік тому +52

    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.

  • @vinnyhern
    @vinnyhern Рік тому +10

    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 Рік тому +50

    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 Рік тому +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 Рік тому +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 Рік тому +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.

  • @Poppi2006
    @Poppi2006 Рік тому +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 Рік тому +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! 🤩😀

  • @ianwille5780
    @ianwille5780 Рік тому +1

    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 Рік тому +8

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

  • @ChuckThree
    @ChuckThree Рік тому +29

    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 Рік тому +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 Рік тому +1

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

  • @Contantq
    @Contantq Рік тому +2

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

  • @npsit1
    @npsit1 Рік тому +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 Рік тому +1

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

  • @alanm3438
    @alanm3438 Рік тому +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 Рік тому +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 Рік тому +4

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

  • @bayman49
    @bayman49 Рік тому +1

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

  • @veccio65
    @veccio65 Рік тому +2

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

  • @shaktisiddha8414
    @shaktisiddha8414 Рік тому +1

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

  • @brucejohnson3905
    @brucejohnson3905 Рік тому

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

  • @davidkeys1879
    @davidkeys1879 Рік тому +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.

  • @DeirdreHickey-nx8nt
    @DeirdreHickey-nx8nt Рік тому

    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. 👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼

  • @0dbm
    @0dbm Рік тому +8

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

  • @Ebikelover
    @Ebikelover Рік тому

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

  • @mcjok88
    @mcjok88 Рік тому

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

  • @PoteauCowboy
    @PoteauCowboy Рік тому +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.

  • @terryrogers1025
    @terryrogers1025 Рік тому +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.

  • @GONZALOARTECHE
    @GONZALOARTECHE Рік тому +2

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

  • @ericball6894
    @ericball6894 Рік тому +1

    Here we go. Let's dig in brother

  • @SnorrioK
    @SnorrioK Місяць тому +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.

  • @enzop.3227
    @enzop.3227 Рік тому +6

    I’m here to see Charlie

  • @SuperMAZ007
    @SuperMAZ007 Рік тому +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.

  • @johncooper4637
    @johncooper4637 Рік тому +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.

  • @danielpullum1907
    @danielpullum1907 Рік тому

    Matt your research skills are phenomenal.
    Keep on truckin.

  • @ryburnsjr
    @ryburnsjr Рік тому +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 !!!!!😀😀😀😀😀

  • @oddvardmyrnes9040
    @oddvardmyrnes9040 Рік тому +1

    Learning a lot by watching you. Thanks.

  • @leighwalker3914
    @leighwalker3914 Рік тому +2

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

  • @kirk467
    @kirk467 Рік тому +6

    Always good to see you Matt!

    • @kirk467
      @kirk467 Рік тому +1

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

  • @clintonroushff7068
    @clintonroushff7068 Рік тому +3

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

  • @nicksacco6024
    @nicksacco6024 Рік тому +1

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

  • @Isthatyoudermot
    @Isthatyoudermot Рік тому +5

    Cutting disc falls off angle grinder, says nothing. 😂😊

  • @HelpfulHobbies
    @HelpfulHobbies Рік тому +1

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

  • @PeterLee-zn3jl
    @PeterLee-zn3jl Рік тому +2

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

  • @dm55
    @dm55 Рік тому +1

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

  • @richardrolph6166
    @richardrolph6166 Рік тому +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

  • @brianelliot2719
    @brianelliot2719 Рік тому

    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.

  • @1971VoiceoftheMummy
    @1971VoiceoftheMummy Рік тому +4

    New Project! Yes!!

  • @House0399
    @House0399 Рік тому +1

    Thanks for taking us along on this adventure.

  • @PeterLee-zn3jl
    @PeterLee-zn3jl Рік тому +1

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

  • @fundi_mike
    @fundi_mike Рік тому +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 Рік тому

      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 Рік тому +1

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

    • @fundi_mike
      @fundi_mike Рік тому

      @@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  Рік тому +1

      I am looking into my options for that right now

  • @bruceknowlton8691
    @bruceknowlton8691 Рік тому +1

    I think the dog thinks you're all work and no play.thanks for the video

  • @davidfist7801
    @davidfist7801 Рік тому +1

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

  • @JohnMason8183
    @JohnMason8183 Рік тому +2

    It's always a good day when Matt drops a new video. Thanks, Matt. BTW, phone video quality was on par with the other camera.

  • @tonystanley5337
    @tonystanley5337 Рік тому +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.

  • @nathansmith1085
    @nathansmith1085 Рік тому +11

    I took it upon myself, to help you of course, to post a poll. 100% of the people demand that you paint it purple. Please don't let us down!

    • @how_to_hallagon1
      @how_to_hallagon1 Рік тому +1

      parade was last month, let it be

    • @Luzeon
      @Luzeon 2 місяці тому

      Ants Pants is watching…and learning…🤣🙌👍

  • @joehirschegger7723
    @joehirschegger7723 Рік тому +1

    Looks like Charlie the Dog needs his own channel...the like I gave is half his!

  • @333mikeray
    @333mikeray Місяць тому

    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.

  • @smokeybailey3080
    @smokeybailey3080 Рік тому +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

  • @davebrittain9216
    @davebrittain9216 Рік тому +1

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

  • @denjhill
    @denjhill Рік тому +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.

  • @bobdickweed
    @bobdickweed Рік тому +1

    Best Teacher of knowledge on big stuff , with small parts

  • @jimwoidyla5139
    @jimwoidyla5139 Рік тому +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!

  • @patriotmob3227
    @patriotmob3227 Рік тому +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

  • @johnjordan4647
    @johnjordan4647 Рік тому +3

    I am in awe of your technical skills Matt 👍

  • @raincoast9010
    @raincoast9010 Рік тому +1

    Brave man to tackle this project. Great dog!

  • @TheAggromonster
    @TheAggromonster Рік тому +1

    1:45 - paying the ball tax. Good man.

  • @captnsquid8151
    @captnsquid8151 Рік тому +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..

  • @tennysoncason772
    @tennysoncason772 Рік тому +2

    The running commentary is interesting. The grinder disk coming loose was funny as you just moved on yet didn't edit the mishap out.
    It all helps serve to promote the hillbilly aura.

  • @garypullinger1604
    @garypullinger1604 Рік тому

    This is going to be a brilliant series

  • @johnviney7919
    @johnviney7919 Рік тому +6

    Nice video Matt! Good to see you are into another rebuild. I enjoyed the D-4, and this one looks like a real challenge too! Good luck with it! 😀

    • @bobf12
      @bobf12 Рік тому

      I liked the d-4 too. It was very well done.

  • @ianpumphrey5041
    @ianpumphrey5041 Рік тому +1

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

  • @renem6441
    @renem6441 Рік тому +3

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

  • @frankh.valenzuelaabuelotej652
    @frankh.valenzuelaabuelotej652 Рік тому +1

    Another Great video presentation!
    Your method of working and, of presentation (finished videos, ready for viewing by the public), is probably the best in UA-cam, in so far as I can recall at the moment.
    Your voice is very calming and welcoming to the viewer. You make us part of your experience, as you weave through the process of your endeavor.
    I would never attempt something such as taking an engine apart. I don't have the capacity to tolerate all the multitude of parts one had to put together again. 😁😁😁
    Looking forward to your next video.
    Peace. ✌

  • @onebadsavage26
    @onebadsavage26 Рік тому +1

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

  • @scrotiemcboogerballs1981
    @scrotiemcboogerballs1981 Рік тому +5

    Thanks for sharing you are definitely braver than me I wouldn’t want to rebuild any of those pumps I’m not good with that stuff and I have heard horrible stories lol

  • @timeinbu7909
    @timeinbu7909 11 місяців тому +1

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

  • @wrstew1272
    @wrstew1272 Рік тому +1

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

  • @kenwood8665
    @kenwood8665 Рік тому

    It’s an absolute pleasure to watch your videos

  • @donlatimer5114
    @donlatimer5114 Рік тому +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.

  • @andrewcooper8980
    @andrewcooper8980 Рік тому +1

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

  • @3069mark
    @3069mark Рік тому +2

    Matt -- There are few channels on YT that I get excited about when a new video is posted. Yours is one of them. Time drags while watching some videos but it flies when watching yours because I am so absorbed by your content and before I know it 30 minutes has passed and the video is ending. Thank you so much for taking us with you on the journeys of rebuilding your D4 and the excavator.

  • @loveliberals-pb9yq
    @loveliberals-pb9yq Рік тому

    Nice to see the canine help early.

  • @RobertFay
    @RobertFay Рік тому

    *- This hydraulic pump stuff always scares the heck out of me.*
    *- Good for you, Matt. You are both courageous and tenatious...and smart, too.*

  • @GarnettM
    @GarnettM Рік тому +1

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

  • @edadpops1709
    @edadpops1709 Рік тому +1

    I’m enjoying this a lot thanks for posting

  • @gaylordfaul5461
    @gaylordfaul5461 Рік тому

    Love watching your videos. Brings back good memories of times when I was younger and would tackle repair jobs like what you do.

  • @ClintsHobbiesDIY
    @ClintsHobbiesDIY Рік тому +1

    Very good Matt. It could have been a lot worse.
    Looking forward to the next vid.

  • @brandonoswald2392
    @brandonoswald2392 Рік тому +2

    This update just made my day!

  • @art1muz13
    @art1muz13 Рік тому +1

    Again, a great video. I really appreciate these, understanding the amount oft filming then editing. All the while keeping up on the farm, honey-dos, being a dad etc...... Thank you greatly as these truly are enjoyable and satisfying!! Although, I'll stick with renovating old wood and old clocks.

  • @andersslangerup7464
    @andersslangerup7464 Рік тому

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

  • @buttonmonkey6845
    @buttonmonkey6845 Рік тому +4

    Great to see you getting started on the excavator. I am well jealous of you, not only having that machine but also the bravery and skills to get stuck in and dismantle/rebuild that swing gear. Really looking forward to keeping up with this rebuild 💪. Ps your videoing and editing skills are improving so much too, I really enjoy watching the vids. 👋😀🇬🇧

  • @wuggacrt
    @wuggacrt Рік тому +2

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

  • @bobf12
    @bobf12 Рік тому

    I'm sure glad that ain't my job. I am too old and tired for that anymore. But I do enjoy watching you do it. lol.

  • @chrislindsey5812
    @chrislindsey5812 Рік тому

    FYI. I really enjoy your channel. Im a good bit older than you. But we share the same mechanics inclination. Also thanks for showing your mistakes. Makes it more real for the rest of us. Keep up the good work!

  • @Mad.Man.Marine
    @Mad.Man.Marine Рік тому +3

    On that planetary the reason they want you to mark the pins is because they are usually drilled after instal. So the holes will most likely only line up on the pin that was in that particular hole and only in the orientation it was originally in. So marking with a grinder on the housing and the pin before disassembling is a must.

  • @brentking-gmailking2570
    @brentking-gmailking2570 Рік тому +1

    Great video as always. Thanks for sharing.

  • @jlucasound
    @jlucasound Рік тому +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.)

  • @richardbishop7428
    @richardbishop7428 Рік тому +2

    So very much looking forward to the next episode, you're absolutely brilliant and a great guy to boot, can't wait for the next one, you're rebuild on the dozer was absolutely fantastic and i know you're going to do the same for this machine, see you in the next one Matt, in the meantime...take care my friend.

  • @TBMAvenger
    @TBMAvenger Рік тому +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.

  • @jeffo881
    @jeffo881 Рік тому +1

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

  • @johncoleman8793
    @johncoleman8793 Рік тому +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.

  • @daviddailey3857
    @daviddailey3857 Рік тому +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

  • @davideyres1628
    @davideyres1628 Рік тому +1

    Once again another great video Thanks Matt i love what you are doing Watching in the UK

  • @Flowing23
    @Flowing23 Рік тому +1

    a lot of work, well done.