How I rebuild a hydraulic cylinder and tools
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- เผยแพร่เมื่อ 19 ส.ค. 2019
- It's so easy to rebuild a hydraulic cylinder.
In this video I will rebuild a cylinder and show you some simple tools to help you do the job.
#kevinrobinson6688 #HowToRebuildHydraulicCylinder #RebuildAHydraulicCylinder
VEHIFOMO 5 Pcs Hydraulic Seal Installation Tool Kit, Hydraulic Cylinder Piston Repair Seal Tools
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GEARWRENCH 2" to 4-3/4" Adjustable Pin Black Oxide Spanner Wrench 1/4" Pin - 81864 amzn.to/2VZrVnC
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I'm a certified fluid mechanic and I approve this video. Simple is best and this video hits the mark. (A hint to remember the o-ring orientation - the 'flat' ring is the back up ring to the rubber o-ring so it can't get extruded from its groove.. So...the o-ring always goes between the pressurized fluid and its back up ring...
Sean, thank you so much i appreciate the great tips on the o rings, thanks for watching.
Kevin, I very much appreciate your “how to rebuild a hydraulic cylinder” videos. Yesterday morning I watched the first video. With a much greater degree of confidence, I went out to my shop and began tearing down two 3.5” x 8” cylinders on an Artsway sugar beet defoliator. I struggled with the same o-ring you did, but after warming them up for a while they finally snapped into place. I had to use the washer and nut to get the piston on the shaft, and I mentally said, “Thank you Kevin! For that bit of wisdom.” This morning I reattached the hydraulic hoses, crossed my fingers, and pushed the hydraulic lever. The machine rose up with No hydraulic oil leaks, and stayed there! At lunch, I found your second more recent video, and have now ordered the additional recommended tools from Amazon. I was able to order the seal kits from Artsway through my John Deere dealership. I took lots of pictures as I disassembled the first cylinder, but still tried to put one o-rings in backwards. More pictures next time! Thanks again for the time you have spent creating these videos. You, and thousands of other wonderful people like you, are what makes TH-cam such a powerful information tool.
Thank you Richard if I can help you with anything else just let me know
Professionals do it every day, but they are not superhuman doing things that intelligent others can’t do with a little education and the desire to save money. Very good video showing every step, thanks for publishing this video.
Thank you
I rebuild cylinders for a living and you did a good job 👍
Thank you so much Louis
The link to the seal installation tool is just what I needed. I found one for a dollar more but I will get it at least 5 days sooner. Thanks.
Your welcome glad i could help
I've been in the industry for over 15 years, you did fine. If I am getting paid to repair a cylinder I take a few extra steps and make it like new, but that should work just fine.
Thank you so much for the comment.
@@Robinson-Homestead your welcome, since you replied I will tell you the extra steps. I would usually test for leaks (and test electronics) weld any leaks, hone the inside of the cylinder to remove any scratches, sand blast the gland and outside of the tube, make sure not to get any inside the tube, and repaint it. I work with electronic sensors and connectors for the cylinders so that's a whole different story but you did good. Only thing I would do different if you dont have electronics or care about the looks is hone the inside of the tube.
You just put it in a drill and spin it up and down steadily a few times until it looks smooth inside, if it's even necessary
Kevin is really good at repairing things and always does his best to show people how easy it is to do it yourself,like he said if you want to pay someone to do it for you go ahead but don't down someone for trying ,,he has saved us so much money over the years being able to diy.Good job Kevin
Thank you Julie.
Liked your video .My addition is take pictures during disassembly and use diesel fuel to clean extra dirty parts. Thanks
Thanks for sharing.
Ignore the haters. No need for a professional on this job, just some common sense and basic tools. These videos are exactly what youtube is for in my opinion.
You got that right thank you.
You are an expert on keeping it simple. Great job on making it happen.
Thank you for watching and the comment.
Thank you for this demonstration. You are a good teacher. Don't worry about the experts. There is at least one that always chimes in with their vast knowledge.
Thank you Jerry I'm glad to help.
You are the best I like to try repair them myself. Thank you for showing me.
Glad to help thanks for the comment.
A professional is just someone who makes money doing something. If you have no blow by then you did it as good as a shop would do it.
Well i must have done a good job because after all these years it still works fine.
@@Robinson-Homestead I just resealed a boss plow cylinder (very small piston) with no seal tool and it was a total pain in the ass. Your video helped give me the confidence to give it a try. I had problems with the new piston seal stretching after putting it on. Maybe I should have warmed it up first? The stretch made it difficult to get the rod back into the cylinder. I had to push the seal into the groove with a flathead screwdriver during insertion.
G'day, i am a mechanic and have trained in hydraulics and the only suggestion I have is that to save one step the end od the rod that connects to your machine can be left in situ and may make it easier to undo and re tighten your piston nut. Apart from that you basically have done it the correct way. I have re sealed a number of rans myself and gave owned a number of earthmoving equipment aswell as repaired othes machines. Tgank you.
Thanks for the info John.
Great tutorial. When ever possible I always do my own home and auto repairs. I have saved thousands of dollars over the years.
You have to today or you will not make it thanks Mark.
@@Robinson-Homestead definitely true! Its comin man!
Awesome video Kevin! Thanks! I have the same cylinders that needs to be rebuilt. I didn’t want to spend the money or time sending it in to a shop. In am now confident I can handle this project!
Your very welcome and good luck with your project.
Thanks Kevin, nice job explaining all this...will make things much easier for me. I recently took a similar size cylinder to a shop for simple rebuild, no machining or difficulties and they charged $240 cash/$270 credit card. I have another one leaking and doing this one my self, kit was $43. Again, you are much appreciated!
Thank you glad i could help.
Thanks Kevin, You're the BEST teacher!
Thank you for the comment glad to help.
Will be giving this a go in a week or two.... great video and never realized how simple it was to rebuild these cylinder. Thank you!!
Let me know how it goes DC thank you for the comment.
Nice job Kevin, thanks for letting us hang out in your shop. Be well my friend.
Thanks Hatch.
Great video Kevin!
Thanks for taking the time to share your expertise with us.
Merry Christmas!!!
Thanks Lonnie Merry Christmas my friend.
Thanks dude. Yeah i don't have 500 bucks to pay the Shops to do something i can do myself
You can do it just take your time and take pictures.
Thanks for the comment and good luck.
Thanks for the Video Keep em coming .
very good step by step video kevin. i wish every one i watch was as informative as this one. i am now going to try to rebuild one of the lift cylinders on my skid steer myself. thanks
Thanks for the comment and watching glad to help
Thanks Kevin!! Your video was very helpful. I just picked up two small cylinders that I had rebuilt about the same size as the one in this video and the bill was $540. I wish I would have seen this earlier, but now I feel that I have more confidence in trying a cylinder repair after seeing your video. I believe I can probably make a spanner wrench like the one that you made. Thanks again God Bless I really appreciate it.
Oh man i do wish you would have seen the video first, that is a lot of money you could have save yourself, take pictures along they way so you can remember where things go and good luck on future rebuilds.
Thank you so very much for making this video. You have taken the fear of tackling a job like this for a novice like me.
Take pictures and take your time you can do it thank you for the comment Dan.
Thanks for making this video. From Cyprus
Thank you for watching ANTONIOS.
Damn, Kevin! You have the best, and most comprehensive, videos on this subject I've seen!! Thanks from Los Angeles, dude!
Great video Kevin. I have a cylinder that has started leaking on a backhoe and after seeing your video I feel like this is something I can do. Besides the closest shop is 50 miles away. Thanks!
You can do it just take your time Doug.
Excellent video Kevin. I've wondered for awhile if rebuilding a cylinder was not just replacing some O-rings and seals. I can hardly wait to try this. Thanks for the lesson.
It's not hard just take your time and picture if you need them thanks John.
Perfect timing. Just had a cylinder on my Ford tractor go bad, leaking at seal. Thanks for the video!!!!
Let me know how it works out Steve thank you for watching.
A hard working man IS a good man in my bock 👍🤝, great video Mate 👍
Thanks 👍
Nicely done with lots of tips.. The only thing I would add is to spray down every component with brake cleaner as micro-grit it the number one enemy to pre-mature wear. The other thing to do is once the rod clevis is installed, spin the rod several revs to remove wrinkles and seat the O-rings. 👍✌
Thanks for the info.
Good demonstration. Thanks.
Thanks for watching Thomas.
Nice professional resealing with perfect tools .👌👍
Thanks for the comment
thank, you for you're video it all worked out easy to rebuild.
Thanks for the comment glad to help.
I rebuild alot of hydraulic cylinders, I enjoy it, I've got a machine shop,that helps, lol, I charge 50 bucks +seal kit it's not at all hard,great video man, keep'um coming.
Thanks for the comment and watching my friend.
This is an excellent video, and I appreciate you uploading it. I have a Kubota with a bad steering seal, and now I know I can fix it if I can just get it out of the tractor.
I have a video on doing a Kubota one.
Kevin, I'm rebuilding a 30 year old backhoe. Got the price to have the leaking cylinders replaced and after watching your 2 videos, I think I'm going to give it a shot. Nice explanation, clear video work, understandable instruction. I appreciate you posting them both. Thanks!
Thank you for the comment good luck John.
Very informative Thank you.!
Thank you James for the comment.
This helped my on my first cylinder rebuild
Thanks for the comment glad to help D J.
Thanks for the video buddy enjoyed it you didoutstanding job your friend G-man
Thank you G Man.
great video please keep making them.
Thank you monte James.
great attitude towards the haters. keep up the great work
Thanks gc, yeah just have to move on and not look back, thank you for watching.
Great job - it’s a great help. even if we had the money there is not a skilled engineer in place that has repaired a cylinder. Having taken over 3 months to get the replacement seals I was nervous of doing the seal replacement myself but this video has skated my concerns. Many thanks
Glad i could help Clive
I have no use for this type of video, but I still enjoyed watching it.
You never know Frank but I thank you for watching my friend.
Very good speech and nice job ,thanks
Thanks and welcome
THANK YOU.
You did a great job my truck was leaking and I don’t know what to do with it so thanks it’s a tow truck
Great video.
Glad you enjoyed it
thank, goodness for you're video.🙏
Glad it was helpful! thanks for the comment.
thank you and to hell with the haters. just remember you get haters when youre doing something good
Thank you so much for the comment and watching glad to help.
Thats some good tools 👍
Thank you
Thanks for the video 😁
No problem 😊 thanks for the comment.
good info thanks for takeing the time to make vid. I have rebuilt many ag cylinders . Alot of people will not mess with them .. It is broke what you can go wrong roll the dice :)
I have in my hand, bought at Walmart, a "waterproof" pill bottle. In 1860 this would have been a MIRACLE, same with a hydraulic piston in the twelfth century. We take so much for granted now a days. Another helpful video. I see you got 35K subscribers !!!! :-D
Thank you Bent 35k I would have never thought.
Very good okay thank you Kevin
Your welcome Ernest
HI Kevin, this coming summer I may have to do this repair. Good tip using the warm water & that tool. First time I saw this tool being used.
Full view & 👍 # 804 Wow Looks like you helped a lot of us.
Thank you & stay safe, Joe Z
That's the best part helping people thanks for the comment and watching.
@@Robinson-Homestead Anytime .👌
Very Helpful just did two Gannon cylinders about an hour a piece, got it done without the seal binder but it would have been a lot easier with it seals were totally shot definitely was time
Cool thanks for the comment
Don't listen to the naysayers. Keep rebuilding cylinders and you'll be very good at it. :-)
Thank you so much for the comment.
I like the way you teach ,i lern a lot
Thank you Jose i appreciate that.
Vary helpfull perfect job bro 👍👍
Thank you.
And I like your tool
Nice work on all fronts .. I will be Trying to make my own spanner wrench for my 79 c300-40 Clark
Sorry for the late comment but good luck my friend.
I made a spanner wrench 🔧 short vid works great. It’s On here somewhere hahaha
Brilliant thanks!
Thanks for the comment and watching
the honing tool works out well to
Thanks for the comment.
Nice video
Thank you STA.
Did my apprenticeship in a small hydraulics shop and rebuild hundreds of cylinders like that, only things I would add is I would have put a bit of anti seize grease on the main gland on assembly might save yourself a lot of time in a few years
Good to know for next time, thank you
Let haters hate Your videos ARE GREAT. If I was a rich kid I would have it done for me of course but with prices of everything being so expensive I end up taking and fixing the best I can my own stuff. I bought a land without understanding fully the zones so any money I get I try to add it to the land so someday I can live on it . And i can not afford luxury I need solar and a well and road so THOSE HOUSE PRICING OF EXCAVATORS either live in one of them or buy old equipment with no luxury.
Thanks for the comment good luck my friend. I just built a new home lots of and expensive all on video..
@@Robinson-Homestead quite welcome yeah the expenses are crazy and I don't think I can even do it they say the well that I have to drill is 300 ft that's probably why I got the land as I did without knowing
Nice job! FYI, I never take the clevis off. You cant slide seals over it anyway and many are welded . It also gives one an advantage to pull apart a stubborn cylinder. Thanks!
Thanks for the info Tim
thanks...thumbs up
Thank you manwar999.
To find seals other than from the OEM is find local seal supplier. Take everything, the gland nut preferably removed and the piston to them plus whatever has a seal or o-ring on it. They will need to measure so as to match. Bobcat Australia wants nearly $200aud for the seal kit for a lift arm ram where as I paid $39aud for a seal supplier all matched plus the seal supplier is closer to me than bobcat. Whos not to say Bobcat don't buy the seals from the same manufacturer. For the hour it took to change even if they fail in the next few years big deal will change again. Thanks Kevin great video.
Wish I had seen this last week. Had 2 rebuilt, nothing to it, thanks
Thanks for the comment next time I'll be here for you.
Thank you
Thanks for the comment George.
@Robinson-Homestead I am so glad to have a teacher like you when I draw the systems.
I really appreciate your work that you do and thank you for teaching me how to put them together when mine breaks
Glad to help you.
I think you should ignore the bitter negative comments. I really enjoyed the last video on Hydraulic Cylinder. I was wondering how you overcame the issue of that difficult seal inside the top component. Thanks for what you do
Hey Kevin, my first cylinder of course was the single boom cylinder on my 307 Cat and a bit of a monster. It took a come along to extract it just as an example of the task along with a small sledge. Leave the gland in just shy of the threads because you must keep it perfectly aligned. I had to have a machine shop break that 3-5/16" lock nut loose because I couldn't break it loose with a pipe wrench and 14' pipe. (they didn't even have a socket that big and used a huge pipe wrench and machine table and fork lift). Today I am faced with reinstalling it in the cylinder. Yikes. Btw I think the seal tool is less needed on the big cylinders. I used it but felt it was unnecessary. Yesterday I put everything back on the 3" shaft and I had to use the nut to press the gland back on while keeping it lined up. I'm sure I won't get it back in without compressing that main seal with tape and hose clamp. Wish me luck guys. Btw I made a nice gland wrench out of a BMW suspension part my son donated with a 6' handle. Worked great. Carved it out with a cheap HF grinder and cutting disk. Cat gets $350 for that sucker and the Proto spanner wrench I foolishly paid $130 for was a total joke but handy once it was broken loose. One more thing I must mention is be sure to shop around for seal kits. I paid $75 (a US company) and I have seen it since ranging from $55 to $310 so beware. That Proto spanner starts around $55 but it wasn't until I had the Proto name and model # in my hand that I easily found ii for $55. I'm tempted to return it and repurchase it at half the price I paid. 😡
I am trying to find out if my lift cylinders are the same as my bucket tilt cylinders. I replaced the tilt cylinder seals and I love the response of the tilt and now I'm want to reseal the lift cylinders . I'm trying to figure out if they are the same Seal kits for the lift and tilt cylinders. After 60 years my Massey tractor is due for new cylinder seals..
Not sure on that one sorry my friend.
Thanks Kevin, I'm hoping to rebuild the stick ram in my 89 JCB Backhoe. Its leaking badly. I think your video will be a good start. I do know that there are aftermarket kits for many pieces of equipment including mine. I think a shop would charge $500-$750 to rebuild this $750 if the "head" (the part you took off with your homemade wrench) is badly rusted and has to be replaced... Thanks again.
Good luck on your rebuild thanks for the comment and watching.
There are other types' for instance hook spanners, and adjustables with a hinge as someone noted below. And with a hole instead of a pin for fire or water hose, etc. Also face spanners with two pins at an angle usually. hinged like a nut cracker.
thanks for the info
Thank you after watching this I’m going to try on my own to repair mine . Talked to a couple places near me that repair theses and they both acted like this was a lost art . I asked them to give me a best case scenario $ and a worst case . You would have thought I was asking for there social security number. I’m all for a business making money but like the guy in the video said at least put alight coat of oil on it .
Lol take your time and take pictures you will get it my friend.
Be yourself enjoy the video origin Joy when I can learn something and always good to learn from somebody that's not a know-it-all see you next time
thank you so much Dale, i try.
Good stuf
Thanks.
When you are bumping the piston onto the msin rod from the bottom, why not screw the fork piece back on to it's thread on the end of the rod then there is no danger of damaging the thread itself. Just a thought.
Good info thanks
Great job buddy. Question if the inside of the bore is scratched! Can you hone it with a hone. Such brake cylinder or engine cylinder hone?
Small scratches maybe but I have never done that Jim.
Yes did my apprenticeship at a small hydraulic engineering shop and we did it all the time, but if you can’t remove the scratches easily it will probably need a new tube
hi kevin the top seal on the inside of that cylinder cap would probably be called the wiper seal good jop
Thank you Barry
You should be the dude who issues man cards... well done friend
Thank you for the comment.
So when given a disconnected cylinder like this. You crack the top off with the spanner. Any pressure to worry about or everything is already safe to disassemble?
Thanks for the info.
I’m asking cuz I was doing a Cylinder for the first time n had no one to help me 😂 not being a safety nerd
How I open kobelco mrc 20t cylinder piston rod pin,, to repair cylinder leakage....
Thanks for watching
The tool is called "Gland Nut Wrench/Spanner". There is an adjustable one that can covers different cylinder sizes.
Thanks for the information Bader.
Hello sir I am from India...
I am working on hydraulic cylinders manufacturing and rebuild it
Can you please suggest a book for manufacturing hydraulic cylinders and standard size
Cheaper version is just take the parts to a hydraulic shop and match up the seals. It’s usually 1/4 the price of a factory kit
Thanks for watching.
your unreal Kevin, you are a professional probably better , and a great teacher
Thank you so much i appreciate it.
Doesn't seem to be a link or name of the tools.
Best wishes
Pete
I think I have it now pete T for you sorry.
👍👍👍👍👍
Thanks for the comment.
hi i got a stuck gland i have tried everything pipe wrench the spanner wrench air hammer i just cant get it what can i do
Did you try heat?
@@Robinson-Homestead yes
Why, you don’t mention the names of the type of seal
Thanks for this very thorough video!
I was wondering what a machine shop would do to the bore of the cylinder hone it out?
You could hone it with a drill and extension and the right size hone.
That tool is called a c spanner or a hook spanner
The hydraulic shop I use always says "o-ring wants to see the oil, the concave side of the flat backup seal wants to see the o-ring".
Thank you Kay
That's from finland 🇫🇮
Thanks for watching