Fixing Hydraulic Cylinders. Re-pack, Re-rod, CAT D3 Dozer.
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- Опубликовано: 30 ноя 2023
- The old dozer has a case of the drips! 3 hydraulic cylinders need attention, and I go through them in depth, including installing new hardened chrome rod. A few curveballs along the way, but in the end I think they are good as new, and probably won't need attention for many, many years.
VEVOR roller stand: s.vevor.com/bfQzZd
VEVOR chain wrench: s.vevor.com/bfQKkj
VEVOR oil drain pan: s.vevor.com/bfQKkA
Discount Code VVSALE5 (5% off)
Video correction:
Audience commenters have pointed out that the ears on the blade are wider than the eye so that it has room to rotate, and of course you guys are right! I wasn't thinking that through. If there wasn't space for movement, then that rotational bushing would serve no purpose, and of course the blade wouldn't be able to twist like it is supposed to. So maybe that is the original blade after all.
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Man I have done a lot of work on this old machine! But she's really shaping up nicely. Only 2 things remain. Welding the track grousers, which I will do at some point. And dealing with the engine and it's oil consumption. I need to look into that further, but it has a lot of blowby so I'm pretty sure the rings/cylinder bore are the problem, maybe just in 1 cylinder, maybe all of them. If it was the bore(s) I would have to remove the whole block and sleeve it, ie: big job. If it was just rings that would be better, but still might need to pull the engine. Not sure there's enough room to do it in frame. But the CAT 3204 engine isn't considered an awesome engine anyway, and the machine works like it is...so I'm just not sure it's worth all that work. I'm going to start using 30 weight oil in it and see if that helps the oil consumption. Ok, I'll quit rambling now. Have an awesome weekend folks!
Would be interesting to see a leak down test on this engine. After this you would be sure where the problem is.
Engine swap? 12v cummins?
Cylinder can be brazed easily and polished.
Marvin Heemeyer spent less time on his dozer , let's hope your last longer
I think it would have been faster to build one from parts :P
You just can’t criticise this guy for how hard he works and how unafraid he is to get into big jobs.
And doing them alone! That boom on the lift was a epic one man project and outside without a gantry crane!
I agree, but I'll guarantee you he does his homework before he videos these projects.
@@brian_2040 that goes without saying..
Can’t be many people who watch CEE channel and think to themselves “How hard can it be…?!” Fantastic work John 🙂
LOVE that channel...
@@HappilyHomicidalHooligan Yeah Kurtis and Karen are an awesome team. Glad to see their influence on other influencers 🙂
@@MD-jo9mhdefinitely a great team. Both Kurtis and Karen will reply to the subs. Both are good hearted people.
I'd be doing it now,if rods were that cheap over here.
*- Yup, agreed. You are exactly right: "How hard can it be?" [Hard]*
*- The amazon seal crimping tool is such a great find for everyone.*
*- (yt channel videos) Cutting Edge Engineering Australia - RUclips*
*- youtube(DOT)com/c/CuttingEdgeEngineeringAustralia/videos*
Someone's been watching some CEE videos! Love Curtis and his talent. LOVE watching a farmer like you take on any project and eventually win. Definitely inspiring, and always entertaining.
Great minds think alike! I was thinking the same!
Jep. Im thinking the same. Love both channels.
I too was rushing to the KeyBoard, but then seen others with the same mindset. Really enjoy both channels.
And for two other takes on how to tackle Caterpillar D series projects,there is Squatch253,just the most meticulous guy,and Pacific Northwest Hillbilly,a pragmatic kind of guy. Kurtis of CEE seems to be in a league of his own.
*Kurtis.
You’ve turned out to be a hell of good Hydraulic Tech. So glad to see you finally figured out gravity is your friend when reassembling those cylinders.. lol.. standing that barrel up vertically and letting gravity assist in getting the piston and shaft back in is so much easier.. on long barrel length cylinders we would use a overhead crane to suspend the shaft and lower it into the barrel.. 27 year forklift mechanic..
Excellence is your middle name, especially when it comes to the camera work. Fantastic to see a pry bar being given it's correct name as a CROW bar. English matters. Best from the UK!! Thank you for posting.
Snowball Engineering does a lot of fixing and mending with farm implements tractors etc. he seems to be a very competent and modest person.
For a man who says he's just a farmer l think you're a competent engineer ! Great video, thanks
Mr John is a farmer, but what ever job he retired from definitely had some kind of engineering. Id love to hear his wife and his story, before YT channel.
@@brian_2040My exact opinion, but just my guess. He also has an extensive metallurgical acumen. Regardless he like all farmers use their knowledge and abilities to get the job done.
A couple of tips from a career heavy equipment mechanic. 1. Instead of using heat to loosen the gland nuts from the cylinder a few good hits with a 1lb sledge on the outer circumference of the gland nut will loosen the threads. I've rebuilt over 1000 cylinders in my day and never needed to use heat. 2. The vacuum on the pull tank has no effect because the lines go to the valve which is closed, not to the tank. As long as the pressure is relieved before disconnecting you should get very little oil.
3. The flat backup ring is used behind the o-ring to prevent it from being squeezed out under pressure.
I enjoyed the lathe work portion of the video. Very nice job!
Perfect timing. I missed my engineering fix this morning as CEE didn’t put anything out, Kurtis is busy with paying work. So instead I get John’s baby cylinders being remade (no slur, just a little smaller than the CEE stuff)
John, I believe the ears on the blade are purposely wider then the eyelets on the rams to allow for the tilting of the blade, if they were closer the blade wouldn't tilt freely
John, I was an electronic design engineer for 35 years. But I found your channel one day about 5 months ago, and find it find to watch, and your attitude is great! 👍
Since CEE Australia didn't upload this week I get to see Farmcraft101 do the same work as Curtis does :D
That's some real cutting edge engineering you're doing there ;)
Sans a safety officer
@@anderswegge6828 and without the very excellent video producer. Kurt's and Karen are a great team
We love Homey 😁
Since Curtis didn't post a video on Friday, it was lucky that you stepped in for him this week. John, that was a very entertaining video, thank you!
When you do something............you do it right. I was taught the same way. If you are going to do it....do it right. You are a very good craftsman.
You must admit that this dozer was the best investment for your youtube channel development 😀
I'd argue it was the excavator ha ha
@@watchtherocks12 excavator is good but it seems to be less dramatic
You can tell I'm a big fan when I get excited to see a new video up and when I see the video is over one hour long I smile. You've really developed into quite the entertainer John.
I watch you from Turkey, I don't miss any of your videos, your works are full of mastery and intelligence, I am your fan, I also love mechanical works, greetings, respect.
This video is like a mini up-over version of Curtis - good stuff, thanks for sharing.
Might be a good idea to put accordion style cylinder rod covers on those new shafts. Could help to keep those rods in good condition for a longer time. Seems like rocks would constantly be landing on them while pushing dirt. Great video, very informative.
Too late... lol
Not necessary for 99% of use cases. If you use the machine correctly there is never any material touching the cylinder.
I was thinking the same. The new rods would be a lot more protected.
9:27 It may or may not be the original blade, but it's the correct blade for this machine. The mounting bracket is much wider than the eye of the cylinder so the swivel bushing in the eye can have much more travel. If the bracket was the same width as the eye then the whole thing would bind, and you wouldn't be able to tilt the blade.
I came here to say exactly this.
Yep
Yup, just bought a new dozer and they are still this way. That spacer shouldn't be there.
Hi john I use to do a lot of welding for a skip company and use to remake the roller wheels on the large skips. I made my own turner for welding none stop out of a windscreen wiper motor and an old flat belt. It worked great.
I was thinking of a similar idea. It would be great if you had a speed control.
Great work Jon. Those cylinders came out really well.
Great job, Jon! That yellow paint pops so nice, maybe do the whole machine? 😍😀
Dozer project complete - well done! May she serve you well for years to come. Enjoyed the videos, thanks.
It's a pleasure to see someone do anything in which they obviously care about their stuff, including appearance, unlike some guy who lives on a creek.
Into which some diesel was spilled
We use compressed air all the time to separate these. We just put a heavy hockey equipment bag around the projectile end and it doesn't go far...or get damaged.
We also motorized and old rotary indexing table to be used to weld circular items. We used a geared motor from allelectronics to drive the table. Easy to do.
That ceramic insert is nuts!!! Totally going to grab a few. Hate digging through the hard candy shell to get to the chewy center.
never laughed so hard in my life when that piston came flying out
by the way great Channel John I really like your videos
Kurtis must be proud of such a student.
I used to make bio diesel, I had a 1000 gallon reactor tank with a big circulation pump and a heater. It has a bunch of different valves and quick connectors to take different liquids if the reactor at different levels. Every once in a while something would get messed up and one of the fittings would need to be changed out. I had a 5hp vane style vacuum pump for moving liquids around I could pull a vacuum on the reactor with 1000 gallon load in your and take a fitting of the bottom of the tank and never leak a drop of liquid. Vacuum is amazing.
The damages in the rods speed up the process of wearing the seals. At school we had a forklift that had some damage in the lifting rod due to some brick laying teachers dropping bricks onto it. The seals could be changed once per year because of that. As always, very nice video, enjoyed to watch it
Man i love bow u find ways to get the job done and save money great video and awesome camera work love this❤
Well done…again! Kurtis from Cutting Edge Engineering would be proud of your work in those cylinders!👍👍
This has to be worth a shout out from Curtis at CEE
Great work on getting this done. Your content is fun to watch. If you had a company do this your $400.00 would balloon to thousands of dollars for this job.
Hi John, great videos. Love your skills!
Why didn't you use the vacuum while you undid the lines to stop losing hydraulic fluid?
You did that in the video where you removed the blade cylinders.
Hello great video. Fyi impact sockets work lot better than chrome. The more mass on socket the harder the force applied to bolt. Shallow impact better than shallow chrome and deep impact better than both. I worked for Honda and crank bolt if known issue for hard to loosen. I always used cheap deap impact socket extra thick wall. I never had issue loosing. Other techs in shop were using either chrome or short professional socket Snap on Matco or Mac having thinner walls ie. less mass . Well other techs thought it was impact gun .yes that helps lot but heavy socket works miracle. The cheap socket I used was used was borrowed all the time. Also years later now there's a special 19mm socket for that issue basically heavy socket. We even took another impact socket and added weld to sides and that works even better.
Anyone written the obvious "Should have bought the Cat-kit and a Kit Kat" yet? Great video again John - thank you very much 😃
So nice to hear your rod is as hard as a rock.
Lol. That's a bit weird...
Before watching your videos I never even heard of vevor. Now I see it around and think, that’ll be a tool worth while. Thanks Jon, keep up the good work.
Love your channel, love your engineering abilities. Just a great mechanic
Dear John, The “good looking seal” was sensational! Please don’t forget our furry seals! I was disappointed with only two “clicks”🤣 Keep up the great vids👍
good work, a tip for installing the viton seal is to pass a thin piece of banding non metal and use it as a handle. Also brush research makes inexpensive ball hones to knock the mirror finish off of barrel, seals will last longer just like honing a engine
Hi John nice job. I always enjoy you videos. I’ve learned a lot of good things. Thanks. Take care of your seals they are so cute.
Jon, here's a TIP: Take an old chisel, like the one you used to loosen the gland nut, but cut the chisel tip off - leaving a blunt end. Put that up against stubborn stuff and it works great, they usually come right off. Works great on hydraulic hose fittings! Just replaced a hose on my Case 480C backhoe. The fittings turned like a knife through hot butter. Lee
I just wanted to say that watching your cylinder repack videos gave me the gumption to do the lift cylinders on my dad’s tractor front bucket. Between you and Wes I am much more confident in doing home mechanical work of this kind.
I am an engineer but I have done some wrench-turning on my own personal vehicles. Hydraulics is for me a new skill area.
Beautiful rebuild! Nice explanation as you went along. Keep them coming...
I thoroughly enjoyed watching you work. I’ve done some of that work on my tractors. I’m a glutton for punishment and keep getting on the old backhoes. You know how many cylinders those have. It may be work, but I loved every minute of it. Thanks for sharing your experience and please keep the videos coming.
Haha, the seal images were amazing. The first one look like Murdock from the A-Team.
hey John, thanks for all your videos, they are always good to watch and becaurse you also shows the things that not always is the smartest to do, like using compressed air😂
But in order to save time, why don't choose a diameter size on the pin that fit your drill bit?
there is no problem using the lathte to make the thread, just go easy in the start by hand.
keep up the good work John
greetings
Tom
Very impressive. I'd like to have the skills to do something like that. I've been on the hunt for a lathe for sometime, but everything is either too large or too expensive. And most of the good deals seem to be up around Ohio, Michigan, and places like that. On the roller stands, with a piece of PVC pipe thrown across them, you could also use them for outfeed rollers on a table saw. Not as light as a roller designed for that, but it'd work.
Nice creative idea on the roller stands. Love it. Yeah, I looked for a lathe for a long time too. I really wanted to find an old one that was a real industrial quality machine, but they were hard to find, very far away, and often so worn that they needed major overhauling to be accurate. I obviously ended up buying the Grizzly, and really I have been very pleased. There's been a couple little quirks that I've fixed or worked around, but all in all, it has always done the job. And I can machine to the 0.001", even better if I'm careful and patient. Of course, the price of them has gone up a lot too. Dollars just don't go very far anymore...
I can confirm that a hobby lathe is just a cocktease. I've got a hobby lathe, and it's definitely useful for some things, but a lot of what I'd like to do is outside of its capabilities. Similar for my hobby milling machine.
@@FarmCraft101 you are not wrong about dollars not going very far, its the same over here with the pounds. I remember when a dollar was worth five shillings.
CEE is great, and so is this channel. Unless I’m mistaken, the part you turn down on the eye is a tenon and the drill hole in the rod is a mortise. You did a great job as usual.
Good job John, I am sure Kurtis would approve ! 👍👍
Extremely entertaining and informative - as always!
Satisfying to see the new paint job - great video, as always!
G,day John from Sydney Australia.
🅰️➕
Mate excellent video production with amazing camera positions;
* removing the CAT hydraulic hoses and cylinders using heat, leverage force to disassemble and repair and replace the seals.
Your blend of product promotion with machining was enjoyable and educational and didn't detract from the personal farm comfort tutorial.
Thankyou.
Got a lot of experience with commercial hydraulics and I'm here to tell you, John, that nickel or copper anti-seize are your best friend. Especially for cylinder pins and gland nuts. Done a ton of work on cylinders that have been in some pretty caustic environments and I've never struggled with a pin that I slathered in a healthy helping of silver sneeze
Instead of fighting with a come along or the chain wrench to get the gland out. Just use an enerpac pump connected to the retract port and let hydraulic pressure push it out. Then connect it to the extend port to push the piston out. You could use compressed air but if it came unstuck suddenly it might go flying, so best to use hydraulics.
love your videos there nothing you cant fix keep up the great work.
John, I think the spacers on the front of the cylinders is so the joint can swivel up and down if you can see where I’m coming from.
Who needs wheels on stands? Put the rods in cardboard tubes to protect 'em, strap 'em down to keep 'em in place on a V like an L channel, and just spin the rods inside the tubes.
Love learning how to do DIY on so many levels! Keep 'em comin', man!
It's starting to look like a well maintained machine at this point.
That drip could be the clap…
button inserts are something I didnt know about for the longest time. they're my new favorite for general lathe work
A lot of labor involved, controlling hydraulic oil loss is the most challenging part as it will go everywhere if you don't have a plan to contain it..
In the end, it's well worth the time to restore the proper functionality to your equipment.
Great video - thanks for taking the time to document your work as it is very helpful to anyone considering attempting such a repair.
Solid upload as usual. I mean this in the best way but glad your machines are continuing to have a few minor problems, giving you content to create and content for us to view. Still waiting for a cosmetic rebuild on the mini ex!
Might be a bit careful when using a hand tap to power tap. The hand tap is meant to be backed up quite often to break the chips before the next thread and because the channels are parallel to the cut they do not do like a drill bit and move them somewhat back out. Thus the power taps have spirals. Because it goes so fast and easily the tendency is to not clear the tap enough nor to break the chips enough which can lead to a very stuck tap. Not saying it doesn't work if you are careful and clear the flutes but it tempts fate. Also, one tends to not feed enough cutting fluid in when power tapping which a hand tap especially needs a lot of.
I broke a new record in behind-screen safety squints 😁 That ceramic cutter seemed like a good investement. Thanks for posting John, take care!
Jon, terrific job of the cylinders, eventually you will have all these annoying jobs out of the way and have a quality, reliable products and never look back. I am an avid fan of CEE and like yourself he is a very practical guy, but after watching all his videos the day I did my first rebuild it went like a dream, as have yours. There are some awesome teachers like Mr Pete, Adam to mention a few and if you didn’t watch and learn from them, then more fool you, there’s no sense reinventing the wheel. Excellent content as always
I would like to think a shock / dust boot cover would work well to keep debris off the cylinder rods. Like on the old mid 80’s dirt bike front forks. 🤷🏻♂️🙂 Great work as always!
It's constantly in and out of dirt so much they'd just become dirt jackets. Same reason dozer fittings run dry instead of greased - dirt+grease = grinding paste
Yep there isnt a lot of rotation going on the pins for a blade on a dozer compared to say the bucket pins on an excavator, so they work better dry.
Aways replace all the seals they are cheap.
NICE JOB . GLAD I WATCHED IT CAUSE I LEARNED A BIT ABOUT CYLINDERS AS I HAVE A SMALL TRACTOR AND THIS KNOWLEDGE CAN ASSIST ME BIG TIME AS I AM A BACKYARD MECHANIC WHO DOES MOST ALL MY OWN WORK ON CARS AND WHAT EVER I NEED TO REPAIR AROUND HOME . THANK YOU .
LOL you nut ! when you stuck your finger in that hole and went back with the air hose my heart sank immediately ! .... it's funny because I knew the danger before it took place, and then you turned and smiled and I understood.... a real good warning of what not to do !!!!talk about a real fast way to be known as 9 finger John ! ....
I am impressed ! you repaired all but one cylinder on that Cat ! and saved a bunch of money doing it yourself ! WELL DONE !!!! and for a second there I thought you were going to burry that cat in the mud hole.... it looked bottomless !
we got our D2 gas rig really stuck one time.... we got it out by hooking the chains to the tracks and the other end to the tree.... big long chain on both tracks and she pulled herself out of the pond ! ....all she needed was traction.... and so she just walked out on the chains...
My Dad thought of that method....at the time and we used it several times on the D2...
the bad part was I was about 15 years old at the time and I had to go get the chains...all 4 of the big 3/8" logging chains....and haul each one about 1/4 mile.... I slept good that night ! LOL
30Wt oil?.... no way man put 40wt oil in it or 60wt.... NOT MULTIGRADE ! that is important !
yes you'll have to go to a oil place to find it, or if your real lucky tractor supply !
Hell John I run 40wt in Motorcycles all the time when they get Loose ! it tightens them right up and quiets them down ! well worth doing.... I switched from 30wt to 40wt at 100k miles in our toyota tercel, at 300k I put in 40w60wt racing oil.... at 410k miles I could hear the rods knocking...so I parked it... the parts to rebuild it cost more than the car was worth ...unfortunately..twas a good car !
Dude, you REALLY need to put Nev-r-sieze on those gland nuts when you put em back together.
Hi John, wouldn't necissarily think that those spacers on the rod end are non-factory - the receiving clevis needs to be wider than the rod end to allow the eye to swivel and misalign. If you google "rod end misalignment spacers" you'll see plenty of examples of the same thing. Cheers!
Pro tip: bend w/leverage vs striking force when there are bearings involved. The balls/rollers in your bearings will translate dimples into the inter/outer races (guess how I know that). Just like an old gravel road, those dimples will 'washboard' overtime. A single 'head strike' from hitting a tool or workpiece is enough to ruin even the best bearings in a short time. Love your videos, keep `em coming.
You've been watching Curtis' video's alot I see ;-) He'd be proud!
At the beginning of the video, I thought you would not succeed, but in the end, an excellent job turned out. Good luck always
You are quite an accomplished mechanic. I enjoyed this entire video. I wonder if he meant what he meant when he said, "to always lube your entry.." 🤔
Great idea with thor and chain whip. Those crc rods are a great price!
Dang, 44:27, smooth transition straight from CEE to Camarata :D
Always good to watch and learn from you
Astro"s "Big Nasty" for the win. Astro makes great tools. Customer service is number 1. Reasonably priced!
Weld a small segment of flat bar onto the gland nut. This will give you a landing point for the pneumatic chisel to impact. You can just leave it on there for tightening.
I have a D3B as well, with many of the same issues you have been fixing on yours, and your incredibly high skill and knowledge are helping me rebuild my dozer back into shape. I just ordered the 5 cylinder rebuild kits and will attempt that when they come in, thanks to the explanations you’ve provided.
I’m also looking forward to your video when you address the oil consumption and blow by. Thank you for taking the time to video these experiences. I love to learn and really enjoy your style of teaching.
I’m glad to be helpful! Cheers!
@@FarmCraft101 Have you tried using 30w in your Dozers engine yet? If so did you notice less blow by?
I would definetly buy your old equipment. Not many people are that particular.
GOOD JOB!
honestly your videos are the highlight of my week as far as youtube goes
Wow, a relevant and useful sponsor. Crazy. I love seeing the work you're doing on this thing.
Usually for controlling the speed of air cylinders it's common practice to put a pressure regulator on the "exhaust" side of the cylinder. This is because creating pressure on the opposite side of the direction in which you are trying tu push acts as a constant force, while if you just restrict the pressure in the intake side the speed would be influenced by every friction and force acting on the piston itself. This roughly explains why the cylinder was much more controllable when the "exhaust" was partially capped
"I'll stick my finger to get it lined up" LOL I just about swallerd my snuff.
That row on the old roadway is serving a good purpose as-is. They've done studies on how the hedge provides a micro-habitat for small birds and mammals which in turn help keep down pests in the fields as well as aiding in the pollination of crops. Getting rid of it might not be in your best interest. Of course, the easier way to possible fix the issue would be to rent a Forestry Mulcher. They are incredibly fast at removing brush and small trees like you have, turning everything into very nice chips that you leave in place. Not only would it be a huge time-saver, but it'd help you to fill in the sunken roadway without having to add a ton more fill. You could be done and dusted in two days whereas dozing it would take at least that long, and then you'd still have a pile of brush that you'd have to deal with.... which adds at least another day or two. Forestry Mulchers are wonderful things to have around!
Great job rebuilding those 3 cylinders. You showed ingenuity in your working around problems. Really like your work ethic. My father always told me...anything worth doing is worth doing right. You certainly follow that philosophy. Your videos are among my favorites on you tube. Always look forward to the next one.
Nice videos John greetings from the Netherlands💪
This is freaking amazing! My machinist grandfather would love this!
I'm really thankful for explaining several movies ago what is backup ring and how it supose to sit :)
That tray you used to dump the brake clean in, there is that slot in the molding of the handle.
A ½x6" blk iron nipple will seat nicely(at least it does perfect for a Stanley brand)in there, and stiffens up the handle, making it more dependable; tinner strapping self tap screwed along the underlip of the frame further reinforces its capability.
Unrelated, but my away from base tool chest, and field tool bucket, field tool tray is a valuable tool to me.
You share good ideas, sharing what I can.
Thanks for sharing John, ya talented goof ball.
OMG, when you stuck your finger in there and made to put air in the cylinder I nearly screamed at my screen "Noooooo!" lol. You got me good!
Great video, always learn something. Today's tip "Don't stop a slide hammer with your finger!" That stuff is Health and Safety Gold!!!
Nicely done John