Mahindra Hydraulic Cylinders: Resealed and Reassembled
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- Опубліковано 14 жов 2024
- Part two of our Mahindra tractor hydraulic cylinder repairs. We'll get all of the new soft parts installed in the rod gland, piston and get the cylinders back together.
#abom79 #hydrauliccylinderrepair #hydraulics #mahindra
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I spent 5 years as a Sales Engineer a LONG time ago ('80s) and I was the only one that could rebuild the customer's air/hydraulic cylinders that we sold. 200psi oil max. 4 tie rod cylinders. There was no torque spec, so I "rang" the tie rods. Trick I learned helping the bike shop at Sears assemble bikes during the Christmas rush in the late '70s. They all "ring" the same note, they're all the same tightness. 😁
In the 500 years tradition of winemaking in our family I appreciate the work Adam has done here (same tractor ...). And thanks to you Phil for being a part of the supply chain:)
... besides that hydraulics and tractors are "new", compared to wine-presses and how they are lubricated. (look it up! :) )
Cheers!
Out of college, I worked on the construction of 188,500 DWT tankers. When tightening the propeller nut for the 28' Dia., 28,000 SHP propeller, they hit the wrench with mauls until it rang true.
Considering the universal importance of hydraulic cylinders in today's world it is really commendable to show the steps in rebuilding these devices. Between your step-by-step explanations and the work that Kurtis (CEE Australia) shows many people will be better equipped to do this work. Thanks for your efforts to share your experience and expertise.
As always UA-cam is the best school. Thank you!
Love the new content, Abom. Any day with a new video from you is a better day. I appreciate the meticulousness of your work and how much effort you put into the editing. It definitely isn’t an easy task.
Great video, thanks! I was able to buy a seal kit for my Ford tractor steering cylinder so I didn't have to measure seals.
Adam, I really appreciate you sharing your knowledge on hydraulics. I’m getting ready to rebuild several cylinders on a boom lift and you just gave me the confidence to tackle it. Great looking new shop by the way!
Some seals can be hard to push into position, especially at the pistons. This is the 'hard plastic' type, not standard o-rings (which are easy to mount) I've have put some in hot, near boiling water, for a couple of minutes to make them a bit softer, more flexable, to greatly reduce the risk of breaking them while pushing them on the piston. Good luck
While not completely necessary, the seal squoosher tool Hercules and probably CRC sells is a nice tool for those pesky teflon piston seals. They are surprisingly well priced for what they are. I think I paid a little over $100 for mine a few years back. If you do cylinder repair regularly they are well worth it in my book especially for larger diameters. I am kinda surprised a tool lover like you does not have one Adam 😁 Cheers
I used to put the hard plastic piston seals in hot water for a few minutes. Softens them up for easy install.
I've been following your channel for several years, I'm glad that your machine park is developing/upgrading. Nice to see Polish lathe chuck, greets from Poland to You and your great Wife 🙂
Poland make some super accurate chucks. I use a lot of Bison gear. It works well, every time.
@@passenger6735 nice to hear it, greets :-)
Thanks for sharing. Bought an older tractor fully expecting to have to dig into all the cylinders ,still no leaks. If I do need to I’m confident I can do it.
Nicely done. I am glad they replaced that stuck solid cylinder. Breaking the spanner tool is no joke and is beyond tight.
I think I did 30 cylinders last month. Some crane and excavator cylinders can be fun, had one that we couldn’t break loose and put enough torque on it that the needle wrapped back around to zero, and the torque gauge goes to 50k ft/lbs. Smaller ones like those are nice. We use Vaseline to lube everything going back together.
What do you do when cylinders are stuck? I've seen curtis over on CEE use a giant pipe wrench.
@@armandhammer9617 The big boys have hydraulic powered cylinder repair benches which can dismantle the most stubborn cylinder - they dont all come apart cleanly when brute force is applied.
We have a big cylinder bench with a hydraulic cylinder to apply torque, and have a fixture with with two cylinders and hydraulic jaws that can clamp on an internal thread gland or external cap, or use our 48” pipe wrench to hold the cylinder while we spin it. The one that took around 60k didn’t break loose but ripped the welds on one of the brackets that we mount the rear of the cylinder in. We ended up scrapping that cylinder before it broke more parts.
@@armandhammer9617 Curtis has some really good videos. We try the pipe wrench on the cylinder bench we have at times. Sometimes we can get them broken loose with just the 48” pipe wrench and some cheater pipe.
Did I hear you say you was in Alabama just haven't seen such a useful video like you go the extra mile to make from us Bama people thanks for teaching this one something new
Antisieze...makes it easier for the next guy
If they had only put some on that smaller cylinder..you wouldn't have had to go thru most of that trouble
Keep em coming!!!!
Snap on makes these "spoon" picks that are awesome for hydraulic cylinders, makes life way easier!
And THAT ladies and Gentlemen is why Craftsmen tools are legend! A Multi=tool phillips head gland seal tool inserterererererrrer.... :)
watching you reseal those rams takes me back to my job in a agricultural engineers!
Snap !!
We rebuilt lots of rams and cylinders some steel some aluminum some 300 to 400 psi rated a lot to 3000 psi rated and some to 10,000 psi on special tooling we had to do this off shore working in the ROV industry on a regular basis your videos show the procedures to do it as well or better than any I have seen great job Adam.
I actually have a hydraulic log splitter that’s leaking, so this set of videos came in perfect timing for my project
Now make a video of your project
@@anthonyrivers8395 sadly I don’t have the infrastructure to make a video. Or else I would do so
I referred to your older vid on rebuilding the cylinder and did the one on my Kubota. I just bought the rebuild kit for my loader
Thanks Adam, together with the previous video I learned a lot about hydraulic systems !
Nice to see, you back to "real work" video, people like it.
Back in early '70s I rebuilt a number of landing gear struts on the F-4 Phantom ....
CRC is a great company to deal with. Wide range of products and usually if I place my order before noon, it's out the door by end of business.
Thank you very much! We ship everything that's in stock the same day - usually up until 4:45pm-5pm unless the LTL trucks show up early. UPS always goes out though.
Now show us one of those painful one's from John Deere where you have to use the disposable plastic tool ring thing to get the glands out. Was my first cylinder rebuild. Grrr.
Ahh a lovely bit of Abom79 to watch in 4K!
@Abom79 You speak of a tool to compress the rings. I am sure the hydraulic specific one is more expensive. But there's a fairly available option that diy engine builders usually use. That you can often find dirt cheap at yard sales of old hot rodders. I know I have my grandfathers one. They are great. But the edges are sharp as all hell :)
Since the seals are bendable, if you could get/make something like a drafters compass with 3 or 4 arms you could put the seal inside the open ends, compress it so it deforms into a 3 or 4 pointed 'star', which would decrease OD and slide it into the space. Unscrew the compass as far as possible, then tip on side into the groove, and possibly the others too.
Or get your kid with small fingers to do something like that?
i worked Maint Tech 25 years at Snapper power equip in GA for 25 years. i HATED those cup seals, and i always seemed to be the one to rebuild them, lol.
Thankx Adam for another good video. I appreciate you sharing your experience. In my personal experiences, back in the day, the older generation didn’t want to share the trade secrets to a younger man like myself. They felt the younger man would learn all the trade secrets and skills and take away the older man’s job😊 Things have changed over the generations👍😄
Enjoyed watching this episode
I've been a hobby machinist for years, with a fairly decent lathe. I'm not nearly as good as Adam so I say to myself sometimes ''what would Abom do now?'' And then the answer comes to me, like ''Oh yes, get that scotchbrite wheel on the grinder and clear away that surface rust before starting the turning.''
Respect Adam thanks for sharing
9:45 I like to use a feeler gauge when installing them. Put the gauge between piston and seal, walk it around. Don't roll and pops right on.
To get those seals in, it seems like a perfect job for a simple tool. A drafting compass type of thing with 4 arms instead of 2. Put the seal at the end, and the 4 arms would compress the seal such that it forces it into a cross type of shape.
That would reduce the OD a fair bit, allow you to insert into the cavity and simple unscrew it in place. A little finagling might be required.
If you had smaller fingers, you could probably do that manually.
He already has a tool that collapses the seals, he said it’s at the other shop. I have used the tool he has its 3 fingers that folds one side into itself then releases to let it spring into the grove.
@@chucksmalfus9623 Beat me to it. Exactly. also, wrap threads with tape before installing o-ring. It prevents nicks in the new rubber.
“It is the way.” The Mandalorian
Great tutorial.
I was taught not to use grease when I worked on Ford select-o-speed 10 speed manually shifted automatic transmission. Your using the grease very sparingly so you won’t have any issues. We were told to use Vaseline. The reason is that grease takes too much heat to dissolve Vaseline dissolves easily.
That being said what I’ve used over the years is STP consistency type products such as Morey’s or Lucas Rislone hyper-lube. These are very slippery and work very well.
|Wow that's a memory, the Jerkomatic from the late 60s !!
Adam I have had success freeing gland nut by heating it up and pouring ice water on the nut to shock shrink the nut to break galling.
Always enjoy your videos, Adam. Keep it up.
You got me wanting to do some cylinder work now.
Good info and great video, thanx Adam.😃
I know it's not cost-effective it would have been a great vid. to see you make parts for that one and fix it anyway but it's understood way great video, thanks!
In that case watch Kurtis @Cutting Edge Engineering.
awesome work man. thanks
BFT - my favourite torque spec.
Quite an interesting info,Adam.Thank you for sharing.
Love your videos!
I guess Abom's on his Big Haul
Correct! Let the milking commence, hoping we see some "legacy" series again 😂
You said less then a hundred dollars, is it that much cheaper to go though the headache of trying to size and order seals and o-rings? The last cylinder repacking kit we bought from kubota was $79, and everything fit. Can’t say about the company your using, but can call Martin Fluid Power Generally tell them the make, model, and the serial and they will ship a seal kit to you. Cat seal kits are a little high (just because it say Caterpillar on it), them goofy Zeter double gladded seal kits are a little high, but it was less $200 had everything but that damn 2 mm set screw.
I like the job shop videos
When I saw "Mahindra" I thought an Indian subscriber had sent you parts to repair. After a quick google search, I found that Mahindra sells tractors here in the USA! They are an Indian heavy machinery company from the 1960s. So weird to see them going global. Looks like John Deere has company.
I've got a Mahindra tractor, about 35hp. I just turned over 1300 hours on it last week, it has been a solid machine. Very, very few problems, the only real money I've spent on it has been fuel, oil, and filters.
I called crc and ask about buying a book....." we no longer have books you have to use the internet" You getting my point
Looks like they haven't printed any books since 2015. They probably did a favor for Adam and gave him one of the last laying around. I'm sure you can get one from a local shop or at the flea market or maybe even eBay if you really want one.
hercules just had a pdf download you could print if you wanted. but its 2023 and most things have moved to digital - its a lot cheaper than printing thousands of catalogues.
I like Real Books...
For me, digital books won’t cut it...
Fun to watch. Thanks
Great informative video.
Nice going
Thanks Adam
Very good job Adam👍
real good info 👌👌👌
You underestimate the skill you just showed us... 🙂
Good stuff
Thanks!
And I thought quantum physics was mind boggling
Made in Poland chuck nice me like it :P
I’ve used the hercules book for years, what is the actual difference between crc and Hercules
tthanks for sharing
Always the best.
Have you every tried soaking those hard plastic seals in hot water for a little while before installing? When I have rebuilt automatic transmissions, I found it made it a lot easier. They seemed to shrink back to size and I would get a nice fit.
Yeah, that's right, I've put seals in hot water to make them expand, be a bit more flexiable. Once snapped off a seal trying to mount it to psiton. Went much better at next try with one that was heated in water)
I heat the yellow ones up in hot water then they shrink when they cool
Adam, you use A LOT of different CRC products in your work. How did you come to decide to use the CRC brand instead of others?
Because CRC sponsors this channel (i.e. they pay him to use CRC).
It's because his shop is about 30 min away from ours.
@@andrewterry8092 Haha! Not true. We're just close by. Robertsdale-Pensacola.
Love any kind of video you do.
I would just take the old seals and parts to a seal supplier and they will figure it out...LOL :-)
Most people in the world don't have a seal supplier anywhere near local. LOL?
The seals and wipers that were actually leaking came out in little chunks. It might be hard to tell by looking what they used to be.
Adam, where do you get the shop gloves you wear? My hands don't like cuts and scrapes much anymore, thanks!
I can't get gloves to last that long ...or were there edits while he changed them?? I'm right handed but the left always rips first..
Aluminum threaded into steel can corrode, making disassembly impossible. Heat won't help as aluminium expands more than steel.
Which model loader? ML264?
I wonder if anyone has used sonic monitoring of these cylinders to detect failures earlier.
Think you could ask the guy to keep the cylinder for a future “heres what it took”
Video and show wether it was actually the aluminum threads that failed or whatever the issue may be?
Did you notice the sound of steel on steel when he stopped the brand new lathe?
Adam do you think if you soak that other cylinder in evaporust that it might come apart?
The internal threads are what are seized, the evaporust wouldn't be able to penetrate to the inside of the cylinder.
Vibrating the wrench right/tight-left/loose-right-left etc. Grit in grooves act like wedges, so oscillating the wrench can grind the grit to some degree letting it loose. If any movement occurs, penetrant can get in. Forcing it in only one direction only makes it worse.
@@rogerscottcathey Yeah. It moved a bit initially right? Just rock it back and forth, however Abom ain't an apprentice, so its probably the galling is just going to become unstuck.
@@rogerscottcathey EXACTLY RIGHT! Get it to move at all,, back and fourth!! BTW- WARMED WAX AS A PENETRANT is magic!
nice!!
so easy women and little children could do it
Why don't you use the installation set you introduced a while ago?
He said it forgot to bring it from the old shop.
i bend those flat seals into a u shape and unroll them once in the groove
😛😛😛❤❤👍👍👍👍
I sure could use a couple gallons of evaporust.
@@mmm365 probably wouldn't hurt.
So the FIREBALL table is already destroyed? At 4:08 you can clearly see it has chipped off a chunk near one of the holes just besides the book.
looks like a stain to me
Uh, no it isn't. You can clearly see other similar drippy stains between the pipe and his hands.
More like Swedish blind.
Destroyed? Are you competing for the Annual Hyperbole Championships or summat?
It's okay, It can be fixed with a little scotch-brite. Sheesh!
pls share the name of micrometer you use? 23:45
👍🤓
Seems overly complicated to determine and order the correct seals/orings for a known product. Being that they are stock cylinders for a specific model, why wouldn’t Mahindra or any other manufacturer provide the exact specs for replacement seals? I can see the value in knowing how to determine the acceptable replacement if its an unknown product, but having to machine something to fit a generic seal seems overly complicated.
I'm not as big as Adam. I don't know that I could apply the proper amount of Abom torque!
Better safe than sorry, you don't want to go bending that ram.
And that, @@richardjones-sl2zd, is where Adam's decades of experience & training comes in.
I have neither of those either. 🤣
@@BossmanEight Especially with torques on pin spanners!
Aren't you supposed to be on vacation?!
He is that's why this is a 2 part video got to drag the content out long enough so he doesn't have to do legacy series again 😂
Why do we need to machine out the groove in the piston?
See first video. Odd size
Actually... MOLASSES is phenomenal @ removing rust!! Project Farm did a wicked good rust removal comparison. FYI.
Jow
MahinDrâ Aaché SâhiB 👳👳🔫🔫🔫
You do not deglaze the rods I knew an older gentleman that was his specialty in rebuilding hydraulic cylinders and he always deglaze the rods, I worked on motorcycles for over 50 years, and all of the hydraulic forks I did I always deglaze the rods and the seals always lasted a lot longer, or maybe it is him and me that do not know what we were doing?
Deglazing usually is done when there are hot combusion gases present which create that glaze. What hot combusion gases are present in a very, very low strokes per minute cylinder. Unless you can point to some SOP or standard which suggests this for this type of cylinder, yeah, I don't think you know what you are doing.
@@boots7859 To tell you the truth I don't think you know what you're doing with all the experience I had plus that old bugger I think we out-experience you by four times, I had this one client that was a professional motocross racer I was the only one that did his Forks cuz he said I was the only one that did them right and lasted the longest before seal replaces!
How do you deglaze them? What does it do?
God bless you!
@@michaelboyle1983 You use crocus cloth to deglaze the rod it leaves a fine texture on the surface which helps retain oil to lubricate the seal and help it from overheating, especially on racing motorcycles.
@@mcfast52 thanks.
First
🏆🍾💰👏👏👏
dude...what's with the gloves....turn in your man card.
Yes sir please by all means find you something out of the junk yard pull that thing apart and learn something God gave everyone the ability to learn something new Jesus Christ is the way my friends he'll run the lath with you if you let him amen love you guys
I can't stand not being "revelant"
Adam, its "relavant, not "revalent"
“It’s” not “its”.
Pedantry Points: Denied!
"relevant"... 😁
two grammar/spelling errors to complain about someone else's dyslexia. ok.
how embarrassing, makes 2 mistakes to try to correct 1 mistake 🤣🤣🤣
@@markshort9098 I agree. It wasn't very pleasant. I dictated the reply. I love this channel; the correction was meant in the best spirit.