I just want to say I really appreciate you putting yourself through going under that excavator and taking that swivel joint apart *with a camera in your face* for my benefit.
We used to tell tank operators in the army that they could only rotate the turret 7 full revolutions either way before it unscrewed itself or bottomed out. It was pretty funny when they would forget to keep count and come up to us asking us how to fix it.
From what you say I take it that there was no indicator in the cab to tell the operator how many revs were left in each direction? Seems like an obvious thing to provide.
Like the video? Want more like this? Give it a like, a share, and check description on how to support the channel. A HUGE thank you to all the folks giving their support, especially my Patrons on Patreon! You guys are awesome. www.patreon.com/FarmCraft101. My patrons get early access to the videos, and even help with editing decisions, titles, and thumbnails. We are building a really cool community over there. I hope you folks like the video, and have an awesome weekend everybody! Next week's video is going to be a fun one. I've almost finished it and it will be on Patreon either today or tomorrow. Here's a short clarification on this video: ua-cam.com/video/d_EP9dak6gw/v-deo.html
I have the Vio 27-3, same year as yours. It's the same machine exactly except for I'm lacking the enclosed cab. (Open Cab). I'm running into the same problem as you. The dealer wouldn't fix it, but I know it's this piece as they checked the valves, and the cylinder and are fine. I want to Thank You whole heartedly as I'm new to these things and I know this is what is wrong with mine. I now know what to ask for in repairing mine and I had no clue before. I also want to ask, do you notice an improvement in your travel motors as well as a result of this fix? I'm losing power there as well as in my blade. One other difference is, I have a plastic gas tank, and have no gas issues. Verified after your other video. For all of your caps, you used, what size hydrolic caps did you use while doing the project? Also KEEP DOING THESE! Every one of these videos helps me in fixing mine up as well as mechanically they are identical!
Also I upgraded the Lights on mine to LED's. HUGE improvement. I recommend the Sylvania 3" LED Light 2N1SP, part number 11920293 F1 for the boom light replacement, fits perfectly, and the Sylvania Lightbar 2N1SPBX Part number 12018818 F1. Both of these were replacement bolt-ons for mine, the light bar for the top may or not fit yours, but the boom light certainly will. I'd need to see your front top light to see if it has the same mounting bracket. They have 2 light modes, wide, and narrow on both. To use both modes you'll need a SPDT switch to switch between the modes, I can send you wiring diagrams for them and you can make a new video on it. Night time working is fun on the excavator.
Oh Man, I've done this exact same job on my Volvo EC27 - boy oh boy they don't give you any room to get at those swivel joints. Took me days! On my machine they have a little peg at the top of the joint which interfaces with a slot to allow it to swivel with the cab. The pin on mine had worn slightly, which meant when the cab rotated the swivel lagged behind slightly (as the pin had some slop in the slot). This meant that it would pull / push on some of the connected hoses, which caused them to loosen and leak over time. I thought this was worth mentioning.
@@TheNikitis No difference in my travel motors, but if those seals had been leaking then that would be the expected behavior, so it may fix yours. My caps were 3/8 BSP and 1/4 BSP, mostly 3/8. Thanks for the tip on the light, I'll check that out. Cheers.
Now this is the high quality content I wish Television was! An in-depth video on diagnosing and solving a problem with a machine. Love these videos! Especially the Coyote cheer squad!
YT videos are head and shoulders above the super low level of teevee. This video was a perfect example. I told the cable company to stuff it in 2007 and never looked back. Now I have Netflix and Prime for movies, and I figure I've missed about one billion commercials by now by never watching TV or listening to broadcast radio any more.
Hey there! I want to share an other trick with you. If you don’t want to run oil down your arm use a multi use rubber glove, not one of those super thin one time use gloves, and fold the rear side one time to outside. So you have a channel which catch the oil! Thanks for your awesome videos. Greetings from Germany
Since I've started working on dirty stuff with dishwashing gloves I had such a better experience doing stuff. Great grip, harder to cut and tear and multiple use for the nasty stuff. Extra points if you wash them by just washing your hands while you still have them on!
Great job rebuilding that swivel joint. You replaced all those seals as good as any professional. It's nice to see someone fix things themselves as good or sometimes better than had they hired a shop to do the job. Very gratifying I know because I'm the same way.
One of the reasons I keep coming back is because you take the time to explain why you are doing what you do in these videos. I'm certain I'm not alone. Okay, back to the video
I figured they had something like that in there. I used to be a tank mechanic on the Abrams. It has something similar called a "slip ring" that is mounted in the center of the turret under the main gun breech. It has fewer hydraulic ports on it, but also has electrical contacts to transmit power, data, and communications between the turret and the hull.
There are rotary electrical connectors, rotary fiber optic connectorsxascwell as hydraulics. Ive seen and worked with custom built units that encompass all three for use with offshore oil well umbilical reels.
Wow, that was great. I watched every minute of it and I feel like I gained 10 years of hydraulics knowledge in about 45 minutes. The most ah-ha! moment for me was when you took us on a short tour of other equipment that all had similar looking hydraulic pieces in them - I'd been under the impression that hydraulics were bespoke and specific to the machine and had just never thought about how generic and similar it might actually be. I was thinking they were more like engines where there's so much variation in how they're done (small vs. big, 2 vs 4 stroke, # of cylinders, etc) that it was almost specialized knowledge per piece, but I get it now. This is one of your best videos IMO - thanks for making it!
The pumps themselves are a little more complex, but the rest of the system is just checks and valves, and pressure build up. If it leaks (due to those clumsy seals) you lose pressure and thus functionality of your device.
As someone who has worked with tractors and plant and repaired myself all my life, I found this video very interesting and enjoyable to watch. You made a mucky daunting job very clear for us all to see and should encourage people who have viewed to have a go themselves. Great filming too.
30:50 Ahhhhhhh I get it now - I was completely mystified by how a swivel joint could possibly work, but after seeing the holes in the cylinder and your U-shape explanation, it makes perfect sense. You are right, it is a simple solution to what seems like a really complex problem.
I was also unsure of how the swivel worked, but I operate equipment and repair and build many things. My guess was that it was laid out horizontally or radially. It makes sense that they built it vertical, so I was close.
I know it's kind of random to say it, but I really appreciate the fact you clean machines and their parts when working on them. Others take great pride in rummaging through all that mess as if cleaning it would take away their manliness or professionalism.
Yep gets my goat. Two minutes to clean makes a job much easier especially when dealing with hydraulic cleanliness. Often shows other hidden issues too.
ya pretty much don't have any choice when working with hydraulics. A little bitty bit of dirt inside any of those parts and the whole system can be toast...
Really cool and in depth video, I had to learn how this works a while ago, completely forgot, because I never needed it, but it all came back. The Seals always make me smile.
Welcome to my world of working out the easiest way to remove hydraulic hoses when they are burst and more importantly remembering the routing and where each hose goes. I’ve been a hydraulic hose replacement mechanic for over 20 years and still loved watching this video, well done 👍
This channel has some of the best content on UA-cam. Can't wait for the next video. Thanks for putting in all the extra effort to film, edit, and explain all these projects.
Nice video. Simple and straight forward. A very informative video. I'm an industrial electrician but i have worked with mechanics who know hydraulics. The swivel is very straightforward in how it works. It is an ingeniously simple device that works well.
Thanks! Very informative and helpful video. Great information coupled with just the right amount of humor. Only thing missing was your wife coming out to give you grief on why it's taking so long. 😀
I’m an HET, I was both taught and still feel the opposite way, I’ll use Teflon tape on NPT threads in hydraulic systems but not pipe dope. Just don’t wrap the tape on the first thread or two, for the reason that overhang could possibly flake off and contaminate the system. Great video by the way, just stumbled upon it on my recommended feed and thought what the heck, why not. I did skip thru a lot just because I don’t need explanations of this stuff but I think it’s great you include it for those that are curious how it all works. TL;DR I use teflon tape but not pipe dope on NPT threads in hydraulics just don’t let it overhang past threads. Great video, very in depth to what you were doing.
I live on a fairly remote island at the top of the South Island of NZ and have a lot of similar equipment to you. Your videos are a huge help to provide some understanding of to resolve potential issues. While I don't think I have the skill set to take a repair like this on, at least I now know what to look for and what's involved with having a mechanic come out to do it.
10:30 LMAO spinning the machine around while you explain the systems on it made me laugh out loud. You look like you're havin' a great time in there 😂 spinning around in you $14,000 toy, I love it lol
I find this kind of content more enjoyable than most "restoration channels" (specially because most of them are fake.) Walking us through the investigation steps is great, it's like we're watching someone solve a puzzle.
A great comprehensive video as usual. You’ve got a great ability to explain what, why and how you are doing something. I always look forward to seeing a notification from your channel. I know I will always learn something. Thanks from across the pond🇬🇧
A newbie to your channel. I must say as a novice to equipment repair, your video was very helpful and informative. Understanding hydraulic in 45 minutes!!! Thank you for taking the time to video that repair!! Great video!
You blow me away with your knowledge of everything, I know some things about stuff but not nearly as much as you. I worked construction part of my life and then got into heating and cooling business, enjoy watching all your videos, very informative. Lloyd from Minnesota.
As always, great video with great explanations and funny innuendoes. As a tip-while working with fluids and gravity, I always have a full-size towel for absorption. Used towels that are clean make life soo much better for those situations 😉
I felt your pain working in cramped quarters with oil dripping down your arm. When you walked to the field I thought you were screaming at the sky, but it was only coyotes.
John ant scared 😳. You're amazing you can take anything apart and get it back together and working... I'd love to be your helper... Keep up the great work we love the channel.
I don’t even own any machines but love learning. Stumbled across your channel and love all of the info. You have a great ability to break down information to the point where someone like me can somewhat at least begin to understand it . Keep up the good work and the videos coming thanks….
This is a great video. I have no need or use for any of this, being an old city apartment resident, but I love seeing how it all is put together a works. Terrific, and thanks!
Jon your videos are informative and fun. I’m very appreciative of the time and effort you put into them. I’m your newest member on Patreon and I hope others will join me in supporting your awesome content.
Good work, super interesting and again, you are a monster regarding the amount of work you do. I can't even imagine putting out that much consistent effort on such daunting projects. Your persistence is mind blowing.
That was great work , I knew about the swivel joint and always wanted to see one rebuilt up close and personal like, what an engineering marvel, and the coyote sounds were cool to ,great video, and audio
I have several Yanmar excavators and I have done a lot of the projects that you have done with yours. There’s not a lot of people that would take on a project like that good for you and great job! Keep the videos coming they are enjoyable
Those coyotes remind me of when I was younger and worked on an Oregon sheep ranch. We would trail packs of 1000 sheep 50 miles cross country to summer grazing areas. Inevitably, the yotes would find us at night. Their howling usually meant we would find a dead doe in the morning. This was before the age of high intensity flash lights so it was impossible to find them at night. But during the day a .308 lead pill would take care of business. Now I'm old and still in a rural area and they still howl. My neighbor thinks it sounds romantic. ??
I think it sounds like "what am I going to find dead in the morning" The problem with coyotes is the litter size. WITHOUT some management the populations explode. Without coyotes, the deer population will explode (and subsequently be obliterated by disease) When the coyotes stay away from my livestock I have no problems. But enough bodies will change anyone's mind.
Damn, I kid you not - probably a week ago I thought, how do they make the seal between the drive motors and the upper part, if it can rotate endlessly. Now I know. Thanks so much for taking the time to explain everything in technical details.
Man that was a fascinating look into your world and a few problems most of us would never come across let alone have to think through. One thing that does come through is the respect you've gained from me for this process. You've also shown that the necessary ingredients for tackling a job like this include perserverance, patience, ingenuity and stoicism to name but a few. I was as happy as larry when your job finally came together successfully. It also caused regret that I'm not likely to need to utilise this. Thank you for your time and efforts. PS. Those bloody coyotes would drive me mad. Do they ever keep you awake with their constant noise?
You my friend are an excellent teacher. To be able to articulate and record and actually repair is brilliant. Thanks for sharing. That Yanmar is going to be brand new by the time your done!
Sooo much work in less than one hour. I do not care what your neighbours say but you are GOOD. Kidding of course. Relaxed approach to knuckle busting task.
Awesome job and determination. My great grandpa use to always say "some damn fool put it together, this damn fool can take it apart." I live by that motto and looks like you do too. Learn a lot from your videos and enjoy the side-bar entertainment and comedy.👍👍👍
I totally admire your cold-headedness while reducing the posibilities as to why exactly the blade is sagging. On top of that you proceed to take out the heart of a chunk of metal while accurately noting what line connects to what valve in order to repair/replace the part yourself. Amazing!
You have convinced me to completely survey used equipment before making an offer. Shop would have had you for a major repair if you farmed it out. Now you can get it to work knowing it's at full strength. Congrats on some fine mechanics work.
Zip ties are a great way to mark hoses! Ribbon works well too, even if you don't have enough different colors you can just rip them at different lengths
I purchased a used excavator myself recently and I didn't have a clue how the swivel joint worked. Very informative on a number of levels. Hopefully I won't have to do the same repair you did. It looked really miserable and had to take many hours. Thanks for showing us how to do this.
You were a little mistaken at the 42:30 mark, when you pointed at the Slew Motor and gearbox and said it was the Rotary Union. The actual Rotary Union was under the cover where you were describing the electrical Swivel Joint is. The giveaway was the hydraulic hoses leading into it. Your explanations of how systems work is excellent and much appreciated by people who may be mystified by some of these mechanical systems.
The Roto Thrusts on the steel coil mandrels I had rebuilt were much easier to take the lines off of, but the seals were 3 pieces each, and had zero tolerance for error. Great job on this one.
Love your channel. Everything is so amusing and educational at the same time but my real draw is your sense of humor. Inserts in the posts like the "seals" are great. Take care and be careful especially with the "boom lift". Yes, I did see the one with the dead battery and it looks a lot safer repelling from the boom than on the side of a mountain. Again take care and thanks.
Another one, teflon tape in hydraulics is definitely common but Loctite 577 is preferable. When installing teflon tape to fittings never go over the last thread otherwise it will be cut on installation and pieces of teflon will go through the hydraulic system a cause issues such as block valves or filters
That swivel joint is one of the most fascinating mechanical components I've seen in a long time. I've watched the chapters on that several times and I'm blown away still.
You sir, are a master of everything…at least it seems that way! That was a great explanation (you’re also an excellent teacher) of the hydraulics involved in the operation of the excavator! I am now much more educated on the subject 😊. And your editing and camera skills are superb! All in all, it was quite a video- educational and very humorous to boot! Thanks for sharing. I can’t wait for your next video.
Awesome video as usual! I really enjoy your analytic approach of how things *should* work to find out why they don't. Thank you for taking the time to share all that with us!
A big thank you!!! I've wondered for ages how 360 diggers can rotate indefinately and get oil down to track motors etc. All has been revealed. Thanks again. Martin. (England)
I’ve been working in the fluid power industry for 28 years. I primarily work on industrial equipment because of all the obstacles you had to overcome in this video. Mobile equipment repair can eat up an awful lot of man hours. Great tutorial.
You are extremely impressive sir. I don’t know if you have a background in heavy mechanics but you should open a online school to teach the new generation, cause there are tech’s in my area that can’t do half the things you can. Thank you so much for sharing your experience and knowledge with us all 🙏👍
Another awesome video recorded and narrated by the master DIYer. Keep up the great work. I can’t wait until the next video. Your videos are very much appreciated!!!!
Loved the video, thanks for the lessons, professor. My Kubota is similar in size, a 12,000lb U-55 it decided to loose a couple gallons of fluid after being parked for several months. My blade cylinder is missing the chrome plating on a small section so I suspect that is where the leak occurred.. If not there then I will be doing a repeat of what you did in this video. Thanks for showing us what is involved in the process. The outro is golden and the only scary part to this video thanks to your guidance. Great video.
I am very impressed with the fact that you are willing to tackle everything that comes along! Wether it’s carpentry, tree service, vehicle repair, or heavy truck repair, small engine repair or whatever comes around; you’re willing to jump in! What I’m most impressed with you leave all the curse words out of the videos!!! HA HA HA😅
Great video. Learned a lot about how the hydraulic system functions on an excavator. I am in the process of troubleshooting a problem on my mini excavator. Your video helped enormously. My problem now is Caterpillar no longer has parts available for my 302.5! Been trying to run down parts for days. Thanks for posting.
I don't know why anyone would skip a chapter of your videos. You school us on things all the way through. A good spotlight will let you see the glowing eyes of those yotes.
I just want to say I really appreciate you putting yourself through going under that excavator and taking that swivel joint apart *with a camera in your face* for my benefit.
We used to tell tank operators in the army that they could only rotate the turret 7 full revolutions either way before it unscrewed itself or bottomed out. It was pretty funny when they would forget to keep count and come up to us asking us how to fix it.
From what you say I take it that there was no indicator in the cab to tell the operator how many revs were left in each direction? Seems like an obvious thing to provide.
@@jonka1 it would be if it was true and all.
Funny
I imagine the ones who could do it with no problems and through entire exercises were promoted immediately -and were let in on the secret.-
@@jonka1 r/woosh, there's always one
Like the video? Want more like this? Give it a like, a share, and check description on how to support the channel. A HUGE thank you to all the folks giving their support, especially my Patrons on Patreon! You guys are awesome. www.patreon.com/FarmCraft101. My patrons get early access to the videos, and even help with editing decisions, titles, and thumbnails. We are building a really cool community over there. I hope you folks like the video, and have an awesome weekend everybody! Next week's video is going to be a fun one. I've almost finished it and it will be on Patreon either today or tomorrow. Here's a short clarification on this video: ua-cam.com/video/d_EP9dak6gw/v-deo.html
I have the Vio 27-3, same year as yours. It's the same machine exactly except for I'm lacking the enclosed cab. (Open Cab). I'm running into the same problem as you. The dealer wouldn't fix it, but I know it's this piece as they checked the valves, and the cylinder and are fine. I want to Thank You whole heartedly as I'm new to these things and I know this is what is wrong with mine. I now know what to ask for in repairing mine and I had no clue before. I also want to ask, do you notice an improvement in your travel motors as well as a result of this fix? I'm losing power there as well as in my blade. One other difference is, I have a plastic gas tank, and have no gas issues. Verified after your other video. For all of your caps, you used, what size hydrolic caps did you use while doing the project? Also KEEP DOING THESE! Every one of these videos helps me in fixing mine up as well as mechanically they are identical!
Also I upgraded the Lights on mine to LED's. HUGE improvement. I recommend the Sylvania 3" LED Light 2N1SP, part number 11920293 F1 for the boom light replacement, fits perfectly, and the Sylvania Lightbar 2N1SPBX Part number 12018818 F1. Both of these were replacement bolt-ons for mine, the light bar for the top may or not fit yours, but the boom light certainly will. I'd need to see your front top light to see if it has the same mounting bracket. They have 2 light modes, wide, and narrow on both. To use both modes you'll need a SPDT switch to switch between the modes, I can send you wiring diagrams for them and you can make a new video on it. Night time working is fun on the excavator.
Oh Man, I've done this exact same job on my Volvo EC27 - boy oh boy they don't give you any room to get at those swivel joints. Took me days! On my machine they have a little peg at the top of the joint which interfaces with a slot to allow it to swivel with the cab. The pin on mine had worn slightly, which meant when the cab rotated the swivel lagged behind slightly (as the pin had some slop in the slot). This meant that it would pull / push on some of the connected hoses, which caused them to loosen and leak over time. I thought this was worth mentioning.
Do the dumptruck and the excavator have names yet?
@@TheNikitis No difference in my travel motors, but if those seals had been leaking then that would be the expected behavior, so it may fix yours. My caps were 3/8 BSP and 1/4 BSP, mostly 3/8. Thanks for the tip on the light, I'll check that out. Cheers.
Now this is the high quality content I wish Television was! An in-depth video on diagnosing and solving a problem with a machine. Love these videos! Especially the Coyote cheer squad!
YT videos are head and shoulders above the super low level of teevee. This video was a perfect example.
I told the cable company to stuff it in 2007 and never looked back. Now I have Netflix and Prime for movies, and I figure I've missed about one billion commercials by now by never watching TV or listening to broadcast radio any more.
Hey there!
I want to share an other trick with you. If you don’t want to run oil down your arm use a multi use rubber glove, not one of those super thin one time use gloves, and fold the rear side one time to outside. So you have a channel which catch the oil!
Thanks for your awesome videos. Greetings from Germany
Since I've started working on dirty stuff with dishwashing gloves I had such a better experience doing stuff. Great grip, harder to cut and tear and multiple use for the nasty stuff. Extra points if you wash them by just washing your hands while you still have them on!
Reason I stopped changing my own oil - oil running down into my armpit!
Great job rebuilding that swivel joint. You replaced all those seals as good as any professional. It's nice to see someone fix things themselves as good or sometimes better than had they hired a shop to do the job. Very gratifying I know because I'm the same way.
One of the reasons I keep coming back is because you take the time to explain why you are doing what you do in these videos. I'm certain I'm not alone. Okay, back to the video
I figured they had something like that in there. I used to be a tank mechanic on the Abrams. It has something similar called a "slip ring" that is mounted in the center of the turret under the main gun breech. It has fewer hydraulic ports on it, but also has electrical contacts to transmit power, data, and communications between the turret and the hull.
Great stuff. I've always wondered how heavy equipment like that can rotate without fouling cables and such. Also coyotes!
There are rotary electrical connectors, rotary fiber optic connectorsxascwell as hydraulics. Ive seen and worked with custom built units that encompass all three for use with offshore oil well umbilical reels.
Take pictures
You are the first person that I have seen actually protecting the seals as you were putting them on the fittings!!!!!
Wow, that was great. I watched every minute of it and I feel like I gained 10 years of hydraulics knowledge in about 45 minutes. The most ah-ha! moment for me was when you took us on a short tour of other equipment that all had similar looking hydraulic pieces in them - I'd been under the impression that hydraulics were bespoke and specific to the machine and had just never thought about how generic and similar it might actually be. I was thinking they were more like engines where there's so much variation in how they're done (small vs. big, 2 vs 4 stroke, # of cylinders, etc) that it was almost specialized knowledge per piece, but I get it now.
This is one of your best videos IMO - thanks for making it!
The pumps themselves are a little more complex, but the rest of the system is just checks and valves, and pressure build up. If it leaks (due to those clumsy seals) you lose pressure and thus functionality of your device.
Like industrial Lego
Fascinating repair video. Great job on the repair.
As someone who has worked with tractors and plant and repaired myself all my life, I found this video very interesting and enjoyable to watch. You made a mucky daunting job very clear for us all to see and should encourage people who have viewed to have a go themselves. Great filming too.
30:50 Ahhhhhhh I get it now - I was completely mystified by how a swivel joint could possibly work, but after seeing the holes in the cylinder and your U-shape explanation, it makes perfect sense. You are right, it is a simple solution to what seems like a really complex problem.
Yes, seeing is understanding in a second. Thank you so much!
I was also unsure of how the swivel worked, but I operate equipment and repair and build many things. My guess was that it was laid out horizontally or radially. It makes sense that they built it vertical, so I was close.
It's what I've been missing so much Thank you so much There are people on the other side of the world who want to support you and learn from you
Real high pressure stuff. Great master tutorial - bet the local hydraulic shops are snarling.
It’s always more rewarding when your diagnosis and repair/rework correct the problem and especially don’t introduce any new problems.
I know it's kind of random to say it, but I really appreciate the fact you clean machines and their parts when working on them. Others take great pride in rummaging through all that mess as if cleaning it would take away their manliness or professionalism.
Yep gets my goat. Two minutes to clean makes a job much easier especially when dealing with hydraulic cleanliness. Often shows other hidden issues too.
The cleaning is much appreciated
ya its good when they clean the oil that is preventing it from rusting🤣😂
ya pretty much don't have any choice when working with hydraulics. A little bitty bit of dirt inside any of those parts and the whole system can be toast...
I call it .obceen.
I am utterly exhausted after watching this!!! I can't imagine approaching such a demanding task!
Really cool and in depth video, I had to learn how this works a while ago, completely forgot, because I never needed it, but it all came back.
The Seals always make me smile.
28:42 GOLD! I've always wondered how hydraulic lines travel through to the bottom, I can't say thank you enough for this video! Thank you for sharing!
Why would anyone ever skip your explanation sections of the video, that's the best part, the knowledge transfer!
Greetings from Argentina 👏
Ha! Tell that to my wife and daughters! lol!
Welcome to my world of working out the easiest way to remove hydraulic hoses when they are burst and more importantly remembering the routing and where each hose goes. I’ve been a hydraulic hose replacement mechanic for over 20 years and still loved watching this video, well done 👍
This channel has some of the best content on UA-cam. Can't wait for the next video. Thanks for putting in all the extra effort to film, edit, and explain all these projects.
Nice video. Simple and straight forward. A very informative video. I'm an industrial electrician but i have worked with mechanics who know hydraulics. The swivel is very straightforward in how it works. It is an ingeniously simple device that works well.
Thanks! Very informative and helpful video. Great information coupled with just the right amount of humor. Only thing missing was your wife coming out to give you grief on why it's taking so long. 😀
Thank you, sir!
I’m an HET, I was both taught and still feel the opposite way, I’ll use Teflon tape on NPT threads in hydraulic systems but not pipe dope. Just don’t wrap the tape on the first thread or two, for the reason that overhang could possibly flake off and contaminate the system. Great video by the way, just stumbled upon it on my recommended feed and thought what the heck, why not. I did skip thru a lot just because I don’t need explanations of this stuff but I think it’s great you include it for those that are curious how it all works.
TL;DR
I use teflon tape but not pipe dope on NPT threads in hydraulics just don’t let it overhang past threads. Great video, very in depth to what you were doing.
I live on a fairly remote island at the top of the South Island of NZ and have a lot of similar equipment to you. Your videos are a huge help to provide some understanding of to resolve potential issues. While I don't think I have the skill set to take a repair like this on, at least I now know what to look for and what's involved with having a mechanic come out to do it.
the hardest part (other then the contortions to work inside the belly of the machine) is getting the new seals in. other then that its cake
I have been running cranes in all types of heavy equipment for a long time and I learned a lot thanks
10:30 LMAO spinning the machine around while you explain the systems on it made me laugh out loud. You look like you're havin' a great time in there 😂 spinning around in you $14,000 toy, I love it lol
I always wanted to see the turn valve bulkhead inside. It is pretty much how I imagined that it had to be. Thanks Bro.
I find this kind of content more enjoyable than most "restoration channels" (specially because most of them are fake.) Walking us through the investigation steps is great, it's like we're watching someone solve a puzzle.
wow, I have never seen anybody on UA-cam tackle that task! Great work and enjoy your machine even more.
Looks like a world of pain doing that job, but really satisfying knowing it's done!
The coyotes were an awesome addition to the video. I love the chorus of an active pack.
A great comprehensive video as usual. You’ve got a great ability to explain what, why and how you are doing something. I always look forward to seeing a notification from your channel. I know I will always learn something. Thanks from across the pond🇬🇧
Reckon we all love the channel here in the UK.
A newbie to your channel. I must say as a novice to equipment repair, your video was very helpful and informative. Understanding hydraulic in 45 minutes!!!
Thank you for taking the time to video that repair!!
Great video!
A very enlightening video--I loved it. Now I know how swivel joints work!
You blow me away with your knowledge of everything, I know some things about stuff but not nearly as much as you.
I worked construction part of my life and then got into heating and cooling business, enjoy watching all your videos, very informative.
Lloyd from Minnesota.
As always, great video with great explanations and funny innuendoes. As a tip-while working with fluids and gravity, I always have a full-size towel for absorption. Used towels that are clean make life soo much better for those situations 😉
I didn’t think it would be interesting but it turned out to be. Throughly enjoyed.Great analysis!!!
I felt your pain working in cramped quarters with oil dripping down your arm. When you walked to the field I thought you were screaming at the sky, but it was only coyotes.
John ant scared 😳. You're amazing you can take anything apart and get it back together and working... I'd love to be your helper...
Keep up the great work we love the channel.
I don’t even own any machines but love learning. Stumbled across your channel and love all of the info. You have a great ability to break down information to the point where someone like me can somewhat at least begin to understand it . Keep up the good work and the videos coming thanks….
This is a great video. I have no need or use for any of this, being an old city apartment resident, but I love seeing how it all is put together a works. Terrific, and thanks!
Jon your videos are informative and fun. I’m very appreciative of the time and effort you put into them. I’m your newest member on Patreon and I hope others will join me in supporting your awesome content.
29:24 "And basically I'm going to stab the seal". . . sharp intake of air in shock. Too funny. 😄
Good work, super interesting and again, you are a monster regarding the amount of work you do. I can't even imagine putting out that much consistent effort on such daunting projects. Your persistence is mind blowing.
Excellent. Always wondered how the cab spun endlessly. That was a lot of work.
That was great work , I knew about the swivel joint and always wanted to see one rebuilt up close and personal like, what an engineering marvel, and the coyote sounds were cool to ,great video, and audio
[Loop pool⁰]
Ive been watching a lot of your maintenance videos and Im really learning a lot and loving them....please keep them coming
Love all your videos, your a great teacher and top notch mechanic.
Very clever how the swivel joint was made. Great video.
I have several Yanmar excavators and I have done a lot of the projects that you have done with yours. There’s not a lot of people that would take on a project like that good for you and great job! Keep the videos coming they are enjoyable
I thought i was a good mechanic, this guy is probably one of the best ive seen! That was a big job!
Those coyotes remind me of when I was younger and worked on an Oregon sheep ranch. We would trail packs of 1000 sheep 50 miles cross country to summer grazing areas. Inevitably, the yotes would find us at night. Their howling usually meant we would find a dead doe in the morning. This was before the age of high intensity flash lights so it was impossible to find them at night. But during the day a .308 lead pill would take care of business. Now I'm old and still in a rural area and they still howl. My neighbor thinks it sounds romantic. ??
There is definitely a reason why coyotes and wolves were almost wiped out
Seems Americans have forgotten.
I think it sounds like "what am I going to find dead in the morning"
The problem with coyotes is the litter size. WITHOUT some management the populations explode. Without coyotes, the deer population will explode (and subsequently be obliterated by disease)
When the coyotes stay away from my livestock I have no problems. But enough bodies will change anyone's mind.
Beautiful job on the swivel valve, even a better job on the video
Damn, I kid you not - probably a week ago I thought, how do they make the seal between the drive motors and the upper part, if it can rotate endlessly. Now I know. Thanks so much for taking the time to explain everything in technical details.
Thank you. I am a woodworker with dyslexia who always wanted to be a mechanic........the effort you put in is enviable
Man that was a fascinating look into your world and a few problems most of us would never come across let alone have to think through.
One thing that does come through is the respect you've gained from me for this process. You've also shown that the necessary ingredients for tackling a job like this include perserverance, patience, ingenuity and stoicism to name but a few. I was as happy as larry when your job finally came together successfully. It also caused regret that I'm not likely to need to utilise this. Thank you for your time and efforts. PS. Those bloody coyotes would drive me mad. Do they ever keep you awake with their constant noise?
Very instructive ! I didn't skip anything ! Loved the clever way you investigate the issue !
You my friend are an excellent teacher. To be able to articulate and record and actually repair is brilliant. Thanks for sharing. That Yanmar is going to be brand new by the time your done!
Sooo much work in less than one hour. I do not care what your neighbours say but you are GOOD. Kidding of course. Relaxed approach to knuckle busting task.
Awesome job and determination. My great grandpa use to always say "some damn fool put it together, this damn fool can take it apart." I live by that motto and looks like you do too. Learn a lot from your videos and enjoy the side-bar entertainment and comedy.👍👍👍
I often tell myself, "Somewhere, some guy is doing this while drunk and stoned. I can figure this out!" ;-). Cheers!
I have been a damn fool too, for a long time
Never had tef tape get inside a line and I've done up plenty of high pressure lines. Great video. Daunting task until you see it all out.
I totally admire your cold-headedness while reducing the posibilities as to why exactly the blade is sagging.
On top of that you proceed to take out the heart of a chunk of metal while accurately noting what line
connects to what valve in order to repair/replace the part yourself.
Amazing!
You have convinced me to completely survey used equipment before making an offer. Shop would have had you for a major repair if you farmed it out. Now you can get it to work knowing it's at full strength. Congrats on some fine mechanics work.
Zip ties are a great way to mark hoses! Ribbon works well too, even if you don't have enough different colors you can just rip them at different lengths
Seals, coyotes, howling, hydraulics, knowledge, repairing stuff. 10 outa 10, will watch more and learn
This was terrific FC101. As always, great logic and problem solving, I learn so much from your content. Thanks for taking us along!
I purchased a used excavator myself recently and I didn't have a clue how the swivel joint worked. Very informative on a number of levels. Hopefully I won't have to do the same repair you did. It looked really miserable and had to take many hours. Thanks for showing us how to do this.
You were a little mistaken at the 42:30 mark, when you pointed at the Slew Motor and gearbox and said it was the Rotary Union. The actual Rotary Union was under the cover where you were describing the electrical Swivel Joint is. The giveaway was the hydraulic hoses leading into it.
Your explanations of how systems work is excellent and much appreciated by people who may be mystified by some of these mechanical systems.
Correct you are! ua-cam.com/video/d_EP9dak6gw/v-deo.html
The Roto Thrusts on the steel coil mandrels I had rebuilt were much easier to take the lines off of, but the seals were 3 pieces each, and had zero tolerance for error. Great job on this one.
I literally am tearing my Bobcat 323 apart on Monday to rebuild the Rotary Manifold... couldn't ask for a better video today.
Love your channel. Everything is so amusing and educational at the same time but my real draw is your sense of humor. Inserts in the posts like the "seals" are great. Take care and be careful especially with the "boom lift". Yes, I did see the one with the dead battery and it looks a lot safer repelling from the boom than on the side of a mountain. Again take care and thanks.
Another one, teflon tape in hydraulics is definitely common but Loctite 577 is preferable. When installing teflon tape to fittings never go over the last thread otherwise it will be cut on installation and pieces of teflon will go through the hydraulic system a cause issues such as block valves or filters
I liked your idea to protect the o-ring from the threads.
That swivel joint is one of the most fascinating mechanical components I've seen in a long time. I've watched the chapters on that several times and I'm blown away still.
Nice hack installing the small O-Rings using the small plastic cap. Well done job overall.
You sir, are a master of everything…at least it seems that way! That was a great explanation (you’re also an excellent teacher) of the hydraulics involved in the operation of the excavator! I am now much more educated on the subject 😊. And your editing and camera skills are superb! All in all, it was quite a video- educational and very humorous to boot! Thanks for sharing. I can’t wait for your next video.
I stayed for the entire video. Fascinating stuff! I genuinely enjoyed watching. You earned a sub!
Awesome video as usual! I really enjoy your analytic approach of how things *should* work to find out why they don't. Thank you for taking the time to share all that with us!
You give me the courage to work on my equipment. Thanks.
27:00 sounds like an excuse to buy a nightvision camera to me 😏
A big thank you!!! I've wondered for ages how 360 diggers can rotate indefinately and get oil down to track motors etc.
All has been revealed.
Thanks again. Martin. (England)
I’ve been working in the fluid power industry for 28 years. I primarily work on industrial equipment because of all the obstacles you had to overcome in this video. Mobile equipment repair can eat up an awful lot of man hours.
Great tutorial.
This was an excellent documentary. I learnt a lot of stuff. Thank you for sharing your knowledge, time and hard work.
You are extremely impressive sir. I don’t know if you have a background in heavy mechanics but you should open a online school to teach the new generation, cause there are tech’s in my area that can’t do half the things you can.
Thank you so much for sharing your experience and knowledge with us all 🙏👍
Great video. Great instruction. The skills needed to do this work will always be in demand.
Another awesome video recorded and narrated by the master DIYer. Keep up the great work. I can’t wait until the next video. Your videos are very much appreciated!!!!
Loved the video, thanks for the lessons, professor. My Kubota is similar in size, a 12,000lb U-55
it decided to loose a couple gallons of fluid after being parked for several months. My blade cylinder is missing the chrome plating on a small section so I suspect that is where the leak occurred.. If not there then I will be doing a repeat of what you did in this video. Thanks for showing us what is involved in the process. The outro is golden and the only scary part to this video thanks to your guidance.
Great video.
Well in my opinion you just took the Kings place of DIY, amazing what you did 👍
Fun job! I hear a really healthy motor. That thing sounds brand new, I don't even hear the valve clatter of a diesel motor.
Yes a new video! 45mins of pure goodness!
People laugh at the crows-foot wrenches because they don't get a lot of use, but when you need one, you really need one.
I am very impressed with the fact that you are willing to tackle everything that comes along! Wether it’s carpentry, tree service, vehicle repair, or heavy truck repair, small engine repair or whatever comes around; you’re willing to jump in! What I’m most impressed with you leave all the curse words out of the videos!!! HA HA HA😅
Great video. Learned a lot about how the hydraulic system functions on an excavator. I am in the process of troubleshooting a problem on my mini excavator. Your video helped enormously. My problem now is Caterpillar no longer has parts available for my 302.5! Been trying to run down parts for days. Thanks for posting.
I don't know why anyone would skip a chapter of your videos. You school us on things all the way through. A good spotlight will let you see the glowing eyes of those yotes.
29:26 “I’m gonna stab the seal”. Made me LAUGH OUT LOUD!
I always wondered how they moved and still got hydraulic fluid down to the drive motors.
That was 45 minutes I thoroughly enjoyed - thank you!