how to rebuild a hydraulic cylinder
In this video we will rebuild a hydraulic cylinder at home in my garage.
#kevinrobinson6688 #RebuildAHydraulicCylinder #HydraulicCylinderRebuild
You can do this your self I have a video on some tools that would make the job easier links below.
VEHIFOMO 5 Pcs Hydraulic Seal Installation Tool Kit, Hydraulic Cylinder Piston Repair Seal Tools
amzn.to/3R8aM73
GEARWRENCH 2" to 4-3/4" Adjustable Pin Black Oxide Spanner Wrench 1/4" Pin - 81864 amzn.to/2VZrVnC
Kevin Robinson's Amazon storfront amzn.to/3Q7fGBL
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For the piston seal that is a real pain to install, what I do is put it in a pot of water flat side down, seal side up, turn heat up until the water boils, then install it. Takes me about 10 to 15 seconds. The heat makes the seal more payable for install, and heating this way will not damage seal as a heat gun can destroy it with blistering.
Thanks for the info helpful.
No, just no.
Good job
Same
Great advice! I will be using that method👍🏽
Lots of farmers do their own rebuilds. The tip on heating Seals and rings is so appreciated. Was tagging calves at --15 this morning.... impossible if you don't heat the tags first. I suspect chaps here don't do too much outdoor rebuilds.. Thanks for the tips.
Thanks for the great video !! Now I can repair my own cylinders,no need to send them out. Each one I sent out cost over $125.00 bucks per cylinder !! so thank you Kevin !!!
Great instruction. Enjoyed your organization of the parts. The way you got them all back together the same way way great. Thank you for taking the time to do this. Best
Kevin! Thanks so much for posting and keeping it simple! I need to rebuild three of these for my three point lift!! I think I "got this"!! Blessings to You!!
Playing
Thank you . I have the seals ordered after finding the number stamped on the front of cylinder. I appreciate the lack of distracting music too. Hoping to save lots of money as seals were only $20.
Thank you for watching hope it helped.
Thanks Kevin, learned a lot. I'm in the middle of a rebuild and your video really helped, Also, the nut and washer idea was brilliant in gettng the piston back in the tube.
So kind and nice of you sharing and taking the time to do this video. Very informative and helpful. Good on ya
thank you for the video sir kevin, I enjoyed watching it.
It was around a year ago that I tackled my right hand lift cylinder on the case 1840 skid steer. After I watched your video I was able to do the job and it was a success.(I commented back then also) Now, a year later, I'm back for a refresher course because the left hand cylinder needs the same work. Thank you again for the great video details and calm .
you are so welcome , always glad to help.
Well done. I appreciated the extensive detail explanation of what you were doing along the way.
Glad it was helpful!
This was awesome. This is the best part of when I work on jobs is taking the machine apart and putting it back together. Thank you for taking the time to do this. Also as a Mechatronics student the little tips you give truly help as well.
Kellie,thanks for watching im so glad i could help out.
You have hands, knowledge and skills that can change the world 💪💪 Keep pushing forward and inspiring others
Kevin, great instructive video, really learned heaps. many thanks and all the best for 2019
Kevin you’re a man of many talents, another great video, Thank you.
thanks ashy
I really liked your solution to getting that front section onto the shaft. Thanks for an excellent simple video
Thanks for taking the time to explain everything
Kevin, You are VERY good at explaining AND showing the entire procedure. I only wish 75% of the people doing videos could learn from you!
Right on man
thank you for show me how to build a hydraulic cylinder
or not!
Im also here for that👍
Great Video! Thanks for showing us and taking your time.
I've been working on a SolidWorks assignment in school and this video was perfect for understanding the seals within a cylinder. Thanks for the post!
Thank you for watching hoped it helps.
Reminds me of my days as an AMH in the Navy repairing the landing gear and folding wing cylinders on aircraft. Good job.
Thank you Dennis and thanks for watching.
I do many different cylinders on boom lifts .telehandlers and scissor lifts . Fun work
I enjoyed your excellent presentation and admire your "can-do" spirit.
Thank you Kenasue.
There's two guys on KZhead who should have a TV channel all to themselves, Andrew Camerata is one and you are definitely the other. So inspiring to watch 'the can-do' attitude. I feel ten foot tall and itching to repair my next cylinder. Though I WILL CERTAINLY video what I'm doing in the process. As we say here in Leeds.Yorkshire , UK, 'Cheers t'old fella tha's done me reet proud.'
thank you for this video. and the accompanying comments are very useful.
Great how to video, Kevin. For those who have never rebuilt something like this. Keep putting these out there my man. Take care.
Thank you Levy Rogers will do.
Nice job Kevin and thanks for going into detail on how it goes back together another fine job as usual.
Thank you Rodney.
"It doesn't have to be pretty, it just has to work" Best advice ever! Thanks
Thanks for the comment Eric.
Even 2 years later I still like this video. Thanx for taking the time to do it and share with us! Awesome...
Thank you I appreciate you watching my videos SARSteam Railways.
This was the coolest video I've seen on this subject. You really have a gift, man. Thank you. I really believe I could rebuild a cylinder myself, now.
Thanks my friend.
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the best how to video, I've seen to date, that goes for all how to videos
Thank you stephen.
Thank you for sharing great video Kevin.
Great video !!! Im ready to try a rebuild now that you have taught so good. Thank you !!!
The heavy roundpart that screws into the end of the cylinder tube is called the gland. The piece at the end of the rod is called the piston. Usually, the nut that holds the piston onto the rod is secured with Loctite 569 thread locker for hydraulics.
Thank you for the information.
I'm shocked watching him scratch the wiper groove with a steel pick!! I work for a competent hydraulic seal supplier. This is not good advice. He doesn't know what he's doing
@@Robinson-Homestead how do you bleed that model cylinder?
@@dianacudby7290 making sandwiches in the cafeteria of a competent seal supplier does not qualify you to judge him for touching the wiper recess with a seal pick. Get back to work
Good explanation, very detailed. One observation I have is invest in a seal tool kit. You will never struggle with those internal seals again. They are a real timesaver and you wont risk damaging the seal. Do a search hydraulic cylinder seal tool kit. Keep those videos coming !
U saved my day dude thank you ❤️
Thanks for the comment.
Thanks for the demonstration, got some to do on my Case backhoe.
Great video! What you've taught me is the following. All of my cylinders are "BIG BOYS" and there is no way in hell I'm going to try to repack them myself............LOL. I just had the stabilizer cylinders done for my grapple truck. Cost nearly $900 bucks. But based on you repacking that little one.........................it was money well spent! Keep rocking!
The first ring he removes is a wiper to keep the chromed shaft clean.
Thanks for the video, I have a John Deere 310c that has a few leaking cylinders, I wasn't sure what to expect, by the looks of that cylinder seems like it came off a John Deere.
Excellent Kevin. Very very clear indeed. Thank you.
One of best videos I have come across dealing with the topic. Thank you for keeping it simple.
Thank you wade5941 glad you liked it.
Good job on the video production, and good job on the rebuild and making the tool you needed. I have 3 or 4 "home" made tools that are in my tool box wondering if they will ever be used again. It's what ya gotta do sometimes to get the job done.
Years ago (late 60's early 70's) when I worked at a Harvester dealership we used fine (400 and 600 grit) emery paper or crocus cloth not sand paper (a different animal) for cleaning scuffs from shafts. As a teacher I learned how important correct terminology was when instructing.
Thanks, first time I have seen the inside of one, good job!
Thank you sir I’m a maintenance man who tries to do almost everything for our plant. Just did my first cylinder in a crown fork lift with the help of your vid here. The shaft seal is a real mother but what I found most helpful was two real small pairs of vice grips set just snug enough to hold one side in the grove while forcing it down. Very helpful vid thanks for posting
Sorry for the late reply but thanks for watching and I'm glad to help.
Hello! Quick question where did you got the seals. Thank you
Nice I always take a few pictures before anything comes off during the rebuild.
Good idea.
Thanks for posting this! It really helps! Love your shop too! This looks just like the articulation cylinder I built that goes on a Lee Boy motor grader
Glad to help thanks for watching.
I know Im randomly asking but does any of you know a method to get back into an Instagram account? I was stupid forgot the account password. I would appreciate any tricks you can offer me.
@Darwin Kingsley Instablaster :)
@Alessandro Cristian i really appreciate your reply. I found the site through google and Im in the hacking process now. I see it takes a while so I will reply here later with my results.
@Alessandro Cristian It did the trick and I now got access to my account again. I'm so happy! Thanks so much you really help me out !
Thank you so much Kevin for taking the time to show and explain the process! Greetings from Germany!
My pleasure! Thank you for watching and the comment.
You are a good teacher. You explained everything as You went along and Showed everything as well. Thanks a lot!
Thank you for watching I hope it helps.
kevin!!i use socks too!.....i enjoy your work!! and you should be recognized, thank you!!!! for your contribution
Thank you for the comment St forgione.
Excellent video! the best I've seen on Cylinder repacking. A couple of helpful comments for your viewers. Some folks may not be as handy as you are so they can find the tool you made from various sources. The tool is a Spanner Wrench and many are adjustable to fit different size cylinders. Your cylinder looks like a Case. Other manufacturers use different types of connections instead of holes. JD typically uses slots. Also, the end of the cylinder may be called a Rod Guide or a Gland Nut. Some of them have small set screws in the side of the cylinder that must be removed first. The replacement rings for some manufacturers are very expensive. Repacking rings for two JD lift cylinders on a backhoe can run about $250-$300. You can find good repacking rings significantly cheaper from various distributors or from hydraulic shops.
Ipo
Excelent information.
@@luisburgos3792 Luis, I'm glad my comment was helpful. I get my hydraulic rebuild kits from from HydraPack Seals, Inc. They have kits for all major equipment brand cylinders. You can find them on the Web. They are 75% cheaper that John Deere.
Thanks Chuck for a wealth of information...
Even when I have a proper spanner wrench, I've found that the pin tends to pop out of the holes on the gland nut if you put a lot of torque on it. If that happens too many times, the hole gets buggered up and makes matters worse. I solved that problem by holding the handle with just enough force to keep the wrench in place and tapping the wrench at an angle over the pin so it puts torque on the wrench and also drives the pin into the hole. It's surprising how repeated light tapping will break loose a nut you couldn't budge with brute force.
I have great satisfaction of watching a vital video and appreciate your meticulous efforts to explain in a very comprehensive way. You are blessed with a work place having all the tools to carry out any kind of works. Many thanks.
Thank you for the comment and watching.
Clear and generous instruction... beautifully put together video. Thank you
Thank for watching and the comment.
In installing the main seal push the seal in so it holds in the groove. Take a dull smooth tool and buckle the uninstalled portion of the seal inward. This will shrink the diameter of the seal the you can pop it in place. Don't worry about pushing the seal to the corner the hydraulic pressure will do that. Also you installed the outer dirt wiper backwards. 16:18. The lip goes to the outside to wipe off dust and dirt. With the seal facing inward dust will enter around the rod etching the chrome causing a future leak. I worked on Case Construction equipment and have done hundreds over the years. Use Loctite 243 (oil resistant) on the threads if you don't replace the self locking nut. Loctite 242 is not oil resistant.
Thank you for all the info Dan.
Kevin, I appreciate how thorough you go through the process of changing out the seals. After watching your video I feel confident that I can replicate the steps you went through. Showing that these things take time and can be a pain is also helpful. Just hit the Suscribe button.
Glad to help Charles we can do anything if we work together thanks for the comment and watching.
Most amazing and clearly explained video ever. Thank you so much.
Good job for an at home repair. Thanks for the walk through.
Thank you for watching and the comment.
I have a badly leaking cylinder that I cannot get a replacement for. This guide is great. It shows how everything comes apart so now I know how to repair mine. I was told that it can't be done by ones self but now know differently. Without this video I would have a dead $180,000 piece of equipment. If you were nearby I'd buy you a beer. Great job!
What machine was it on, just curious.
Awesome, looks so simple when you do it. Greetings from Andreas on Off Grid Sweden
Not hard and it works.
Thanks for the video, I picked up quite a bit of information and I thought you did a good job of teaching a practical way of keeping things in order. There were a couple of other comments from some builders who must do this all the time, so I appreciate those comments as well. One thing I wanted to point out was using some harsh cleaners with no protective gloves. I have done this for years but I am now at a point where those harsh cleaners ie. lacquerer thinners etc will make me feel pretty lousy for a day or two afterwards. An industrial hygienist told us that if we wash parts in gasoline with our hands, within three minutes it will be in particles coming out of our breath. I watch it pretty carefully now and avoid the down time. I hope this helps some of your followers, who like me , may have been a little bullheaded about some of this. Again, great job and thank you for the video. I know it must be a hassle to work with the camera and oily hands, getting it turned on and off, but I do appreciate the lesson.
Amazing info Keith, thanks for the heads up.. Any chance Kevin could pin this with Chad's OHS post as well.. Info like this is easily lost forever in this day and age...
Good video Kevin! Thanks for posting. Cheers from Canada.
Exactly what I needed to see , I’ve a forklift to repair and that’s given me the confidence to get the job done ✅ thank you 🙏
Glad to help and good luck.
You have the seal in correct only thing on pulling it on ,rotate it ,the seal will expand & slip over rod with out damaging seal
Helps to be a big ol' boy when disassembling-
That’s so much. Just found an old hydraulic double sided cylinder pump. Don’t know where it came from. Just looks really nice. Thinking about putting it on my bearing press. Thanks for the help
Thank you Kevin, good video.
Saved yourself $150 there Mr. Robinson!!! 👍😋
And it worked to Ruben.
I think that larger internal ring you were struggling with is called the "rod-seal" ring. We boil or heat ours slightly to make them more pliable. Once they are softened up, they go in super-easy. You can actually do damage to the rod seal forcing it in cold.
wxfield yep
Question? Which way does the seal go in Flat out? Towards the outside of the cap and grooved side in?
good to know ; thanks
Makes sence.
@@1003freak Yes, the grooved side is usually a V or U shape, people often refer to them as U lip seals. The pressure goes inside this groove & forces the inner & outer sealing surfaces onto the rod and out towards the back of the seal groove. Sometimes you might have an O ring or a Quad ring pushed into this U or V lip on the seal, this is known as an energized seal. It just puts a preload onto the sealing parts of the seal.
This is the Best video on this teaching me so much on how to rebuild my cat thank you older video still worth its weight in gold Now i can continue to move a mountain.
You are very welcome I have more videos on this if you need more let me know thanks for the comment.
First time I watched a rebuild a hydraulic cylinder. Thanks
Thank you for watching.
I don’t have use for this information, but it was still interesting to watch.
Thanks for watching Frank.
You dont have any use for it yet........
when you covered the cylinder with the sock, I was thinking FAIL. Then I remembered not everyone wears socks with holes like me!
Lol thanks for the comment.
Literally everyone wears socks with holes. But I get your point.
Your vast knowledge on so many different things just amazes me. A true boss.
That was awesome the way you explained that! Thanks
Where did you buy the seal kit?
The chromed shafts vary depending on their diameter as to how thick the chrome layer is. The chrome is very hard but the shafts are quite a bit softer and will bend before they break.
Thank you for the info and watching Gordon.
I just started working at a Hydraulics Shop. Thank you. Great Video.
Thanks for the comment Richard
Thanks Mr you give us every detail of this job 👍
The 2nd ring on cylinder head is a backing ring and goes away from the hydraulic pressure . (To keep the oring from getting cut ) the second ring inside is a polypack v-ring . Do NOT Use a screwdriver , use piece of 1/2 inch rod with the end smoothed (I weld a nut on the back end to have something to push on) . I work on trash trucks and have worked in shops where I rebuilt 4 &5 a week . On the piston outer 2 are wear guides . The middle one is the seal. The white is the seal and and the black is the expansion ring . For the seal and the polypack on the rod drop them in boiling water for a minute , they'll go on a lot easier . You need to compress the white (piston) ring , I use a hose clamp . To get the head back on the rod a socket and a hammer works well . When reusing a nylock nut a little locktight helps .
Also make sure that the rod rings are the right direction . The polypack keeps oil in and the outer keeps dirt out , so the lips need to face the correct direction .
Thanks for the info.
Your welcome . I started rebuilding cylinders as an apprentice operating engineer heavy equipment mechanic and have probably rebuilt several hundred since then (most on trash trucks). When I started most rod packing was multi v stack fabric , the polypack is a hell of an improvement .
Thanks for the tips...cant beat years of experience!
Stuart Cookie Your welcome . It always p@ssed me off when the experienced mechanics wanted to "protect" their jobs by not passing on what they had learned . Luckily I didn't run into very many . I'm always willing to help .
Kevin, ... the tool you “made” is called a “spanner” wrench, ... used them countless times as a 63B/C20, (line (1st) echelon), mechanic in the US Army, back in (circa), 1972-1975, ... there were a couple different sizes, but they all worked the same way, ... surprised they did not have a ratcheting ability, ... the trick to fixing/repairing/rebuilding these cylinders is to set the order of replacing everything the exact same way they are stacked in place when the unit is assembled, ... part a>to part b>to part c>, etcetera,etcetera, ... it does not matter how many pieces there are, but the direction, each part faces, & the order they are stacked in does, ... (just something I learned from my stepdad), ... as the rings must be set in the same direction they faced originally, ... the manufacturers of the o-rings generally “paint” a stripe on one side of a seal, ... in order to set this as a “directional seal”, ... and as you implied, all debris must be completely removed, and the surfaces, properly cleaned, & prepped, ... my stepdad would carry a small bottle of baby oil, to assist in the replacement of the new seals, ... as it would provide the proper amount of lubricant, after being wiped off with a clean rag, ... putting too much lube, will cause an improper seating of the seal, and will more than likely succeed in a failure of the seal, causing a pinch in the rubber of the o-rings, ... defeating the rebuild, ... so attention to detail is so important, ...
my great-great-grandfather showed me that way as a youngest and throw school I found the way they were teaching me were very different then I learned to do it somehow I put it together the way I was shown at a younger age all the others leak my did not leak but he failed me anyways because I was a problem in his class somehow the other leak to do with why I was kicked out from class. ( i was helping my part of cleaning up, maybe I shouldn't have been using someone head for the mop ) I was kicked out for 2-week plus 2 more weeks after came back the person didn't lean his leased the first time it did land him have a broken arm and couple of black eye with it and his friend got his teeth kicked out. work out get when I got home both time we have gone fishing. I did run into them one more time after that there was a knife pull out them and I was cut by it was his mistake to pull it out he wears his own knife to the hospital taken 2 cops to pull me off of him that the last time i seen him
Thanks for the info.
John E. Osman III Hey John you forgot to mention about putting that down on a DA 2404, miss those M35A1 something fierce. 63 Bravo 20😁
63B/10 " 78 - 83 " chiming in here !!
ray07man Oh my! Seems like I got something started here, ... Welcome fellow wrenches! We did have to know how to operate them, once we had them fixed/repaired, & I for one enjoyed putting the equipment through its paces, to test out our repair work, ... lol, ... had to work properly, 1st time, everytime, ... and doing it the same way (repeatedly), always had the same result, ... you either did it right, or it was wrong, ... no other outcome, ...
What a great job explaining how to rebuild a cylinder! Thanks for sharing!!!
Thank you glad to help
I just wanted to say thank you for this informative video. I am just learning the basics of hydraulics at work and you spoke in lamens terms and it was easy to follow along. Truly appreciate your help.
Thank you James
Would't be better to use non-marring tools to remove/clean/ and install seals to prevent damaging sealing surfaces?
Exactly
Wouldn't it be better to SHUT YOUR BIG YAPPER!
@@devo076 You should probably follow your own advice.
I've seen guys weld cracks and indentations on those shafts and then they would turn them down to tolerance on a lathe and make them look smooth again.
And they were so smoking crack. I've seen braising work but nothing is really a good substitute for chrome besides black oxide. And even that doesn't last as long
Yeah, I was 'The Welder' in a machine shop that did a LOT of cylinders...2 guys stayed busy with that, and they weren't even doing any machining... I TIG welded some damage on chrome rods with 316 stainless filler wire, but the best way is to just make a new rod...it seems expensive at first, but repairing ther cylinder again later is more $$$...
Great video. Gonna try and rebuild one tomorrow. THANKS
Thanks for demonstrating this rebuild. Excellent!
Thanks for watching glad to help.
Great video but you put the Wiper seal in upside down, that's why you were struggling with it. The thin wiping lip faces outwards. This would also be the reason for the Head bush not going back over the rod easily as the wiping lip would be pointing down below the groove where there is no clearance. You might have found a bit of the seal left at the base of the rod end. With this type & size of Cylinder I would expect to fit the Head bush back over the rod by hand, maybe little tap with a dead blow hammer might be needed. When assembled, you should be able to turn the rod with one hand, if it's much tighter then generally there's a problem. One tip for people who might be resealing Cylinders that somebody else might have tried to do previously is lookout for marks from screwdrivers etc. in the rod seal groove. They can be hard to spot but I've resealed lots of Cyls. that have been resealed by somebody else but are still weeping past the rod seal. These can be polished out in a lathe or make a sanding disc to fit into your drill. A Dentists type mirror, the little round ones on the end of a rod, are ideal for checking seal grooves. Hope this helps somebody, Rich.
Thanks😊
Great video but where do you get thr rebuld kits from? Thanks
Yep, I was talking to him while the video was play, hey turn that seal over the lip goes out.
@Daniel 045 Try finding a fluid power book by Parker Hydraulics or John Deere intro to hydraulics books. They will do you justice.
rrc7t3 how do you know what seal kit to buy ? If you have a cylinder unmarked or old ,
Good job! Looking for function not fashion.
That's right.
Thank you. Kevin. GOD. Bless. You
Thank you so much for the comment Arnaldo.
Thanks for taking me through the process. I learnt a lot from you - I enjoyed the video.
Thanks for the comment David glad to help you.
I use plastic tools to reinsert all gasket/rubbers, less likely to disparage the rubber or put gouges on them..don’t use sharp steel screwdrivers, one little nick and high pressure finds the least resistance!!!!! Merry Christmas
thanks for the comment.
I use bamboo chopsticks as removal tools for O-Rings and seals. Pretty tough, and you can sharpen or carve the ends to get into the grooves and clean out the gunk. Won't scratch no matter how pissed off you get..!
I've had 6' cylinder where the rod bent. You have to replace the rod and packings as well. Sucks cost wise but cheaper than a new whole cylinder
Thanks for the comment and watching
We can supply the seal kits and hydraulic components for your next cylinder repair job. Happy to help you out with a new piston rod. We cut all material to length and ship the same day... even until 5pm.
@@crcdistribution878 Email me kdr6688@gmail.com
@@Robinson-Homestead Do you have rebuild kiits for a 2 1/2 ton Ausco floor jack? I do not know how you respond to me about this questions.
Excellent vid. I will be rebuilding my skid steer tilt cylinders this week thanks to you sir! You ROCK!
You can do it take your time and take pictures of your seals let me know how it goes.
Kevin, thank you great video very informative keep them coming God bless
Thanks for watching Bob.
never use a screwdriver/metal object to *install* your new seals. prevent damage and extend performance. wood or plastic works well 👍
Thanks for the information and watching
That's right although, when your a DIY tool-maker Smith you can precisely shape and dull down to a smooth rounded end making that particular screwdriver now specifically for that uniquely difficult to install ring.. I try not to use wood ever as I've had tiny organic gremlins lurking in the film but do like good old plastic when I'm hard pressed for time or simply to tired n' lazy..
Dursun, almost forgot... As you would know, the modded screw drivers do still require the hands of a professional for damage free I instalation. So yes, for beginners stick to wood, plastic then once a die hard perfectionist tool modding..
@@BDBee81 i totally agree my friend.
Put the seals in hot water to soften the before install
Yeah, especially if the piston uses the 'teflon' pressure ring.
Thank you for your video that you did I really enjoyed it and it is going to help me rebuild my cylinder for my cherry picker thank you so much
Thanks for watching.
This was a huge help for me! Thank you!
Glad I can help thanks for watching.
I also rap electric tape around the treads to keep from accidentally cutting -O-rings .
Thanks good idea Jeffrey.
14:14 - "Get it greasy, make it easy" "If it's tight, it's alright" ~Rick James
That’s what she said.
underrated comment for sure lol
Excellent instructive video and comments. Thank you from Oz.
Great video. Very descriptive. Great job in showing each step of the rebuild. Keep up the good work.
Thank you