How To Fix A Leaking Hydraulic Cylinder, My First Go At Replacing Seals With Basic Tools

How To Fix A Leaking Hydraulic Cylinder, My First Go At Replacing The Seals on the arm Hydraulic Cylinder Of my mini excavator With Basic Tools most people would have. I have never done this before. Follow along and see what problems I run into whilst doing this in my home Workshop. It all turns out well and I would do it again if the other cylinder Leak. This Excavator is a Komatsu PC12R. I have made some Videos on it previously.
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I have Found This Playlist from Jim Pytel Really usefully.
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And Video in Hydraulic Cylinders well worth watching in particular.
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[@williamallen6934]

I never had pressed either I this is my first time watching your chanel I love it.ive had really good luck with out all of the amenities of a nice shop.just taking your time and focusing on not damaging things.i works pretty well.ive made some bad mistakes.but learning is the only way.

[@apocalatte3075]

Legend! Love people who teach themselves! Thanks for the help!

[@Westerken]

Thank you for posting. I need to do same. It makes more sense now that I've seen you do it.

[@MrRoccoMarchegiano]

Cheers bud, I needed to make sure the head doesn't come apart farther to make it easy to get the gaskets out before trying to pry with flatheads. Super helpful.

[@gpetheri]

Well done mate, especially being prepared to have a go yourself and learn. I own an old knackered (ex Kennards Hire) Takeuchi TB016 which I've made new pins for and am constantly repairing and working on. I have a leaking RAM and after watching this will probably have a go at it myself. So thanks again.

[@offtrackprojectsandmainten5681]

Cheers Thanks Glen, I’m probably going to do something about a few of the pins as well at some stage try to get a little bit of the play out:)

[@gpetheri]

@@offtrackprojectsandmainten5681 I'm lucky enough to have a lathe, and managed to salvage some extremely tough bearing shafts from a vibration machine. The tungsten carbide lathe bits just cope cutting it and I have to cut them to length with an angle grinder.... But they are tougher than the originals. Hard part is getting the old pins out if they're siezed. Good luck.

[@tennessee1828]

Love your video...save me money. Love from Tennessee US. ❤

[@glinstablet]

Thank you for the well done video. I am about to start my first seal change-out on a Case 580B CK Bucket Arm and needed some reference help. This help me out tremendously. Thanks again.

[@offtrackprojectsandmainten5681]

Thanks Glin😀. How did you go, did you make a start? The Case 580b looks like a pretty handy thing to have!

[@cedargroveopryalamoga2873]

Thanks for posting I’m having to do the same

[@thegeneral343]

I had no idea that a pipe wrench is a Stillson Wrench. That wasn't the only thing I learned from this, it's just the most profound!

[@richardlove4287]

Thanks mate, top job..I’m just going to do mine now.

[@jerrymadin1656]

Thanks for sharing this video. I had the same problem too.

[@gimpy8349]

Maybe use your bench vice as a press?

[@lnesland]

Excellent job :-)

[@patricktierney5116]

Great video, except I have a Hytachi ex27u and it has a different holding nut on the ram . It has a set screw with ball check to make sure it doesn’t back out, but your video was great some great pointers. Thank you

[@ShimodaLife]

Great video. I just bought a Komatsu off auction; it’s in good nick but the boom cylinder is leaking a bit. Your explanation has me on my way (I hope). Biggest problem will be knowing what to ask for in Japanese. I hope I can just use the part number.

[@ricardo3760]

Just call up Komatsu and ask for parts, and give them the parts number, shouldnt harder than that

[@bifish101]

good job

[@cowboykyle94]

Very good video I am about to pull a power steering ram off so this was helpful. Hope it isn't to diferant.

[@mazdarxrx]

Good work mate

[@rhys5567]

I've got a D6 with a leaking pump. Feel free to make a video about that 'cause buggared if I've a clue. ;)

[@Junkitup]

Great video buddy

[@vivianchan3163]

tks

[@yvoeu]

Well done video!

[@robertcameron1193]

well as a 18 year cyl mechanic you did not do to bad deff a few things you could of done either different or better the only thing for sure was a problem i seen right away was u have rust pits on the rod that should have been fixed as your new seals will be cut fairly quickly and basically a waste of seal money and time good go for a first timer though

[@yvoeu]

Good to know, thanks Robert!

[@berniemac8413]

How would you go about fixing these rust pits you mention?

[@robertcameron1193]

@@berniemac8413 the rust pits are a hard thing to gage without seeing it but if they are very shallow and not a whole lot of them then have the shaft re-chromed and what they will do is polish/grind below the level of the pits and chrome back to tolerance or if the pits are deeper as in .010 to say .025 and not a big patch then they can be dot welded with chrome balls that being said I have not met a Chrome shop yet that will fill more the 15 to 20 holes before he will refuse the job dot welding with the balls is a massive pain in the ass I own Hawk Hydraulics in Delta B.C Canada if you like give me a call and I can help you trouble shoot your situation im the (236) number

[@baltazar0007]

GREAT video. i feel confident i can do it on my own pc05 now. what was the diameter on the piston rod. and where did you get the seals from

[@510Redneck]

But you do have a hydraulic press sir, you are sitting on it. :)

[@susansu-p5o]

I am from China Seals Factory. Our company produces many types of hydraulic oil seals. If you are interested in our products, we can send you free samples so that you can learn more about our products.

[@jimaton58]

The hydrolic cylinder rod is not fully in,then the leak increases and when make it fully in thecylider, the leak decreases. What does it means? Can somebody tell me?

[@ExploringCabinsandMines]

new cylinder $250 , my time is worth more , i waa going to go this route but in this case ill buy a new cylinder made of Chinesium.

[@abelardopomasin7528]

Dami mo daldal

[@jaylad4086]

That rod is scored to fuck

[@aaronmayo7757]

This is too long. Please don’t talk so much. Make your explanations simple and to the point. We don’t care about minor details. We want plain, simple, and to the point. The longer you talk and explain, the fewer people you will have watching or subscribing.

[@jasonellis5202]

Thats your opinion, as it certainly isn't mine.
Great video thanks

[@DOPEMANCHEW]

To all of you rebuilding your cylinders if the cylinder is scratched up then you are just wasting you time replacing the seals. It will leak again even with new seals in it.

[@abelardopomasin7528]

Dami mo daldal

[@abelardopomasin7528]

Dami mo daldal