Resealing a Backhoe Hydraulic Stabilizer Cylinder [Dynahoe 160 Part 10]
ฝัง
- เผยแพร่เมื่อ 8 ส.ค. 2020
- I replace the seals on one of the hydraulic stabilizer cylinders on my 1978 Dynahoe 160 tractor-loader-backhoe.
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Ah, the old hose clamp as a ring compressor trick! Excellent! Good to see you used some old material as a buffer so the slots didn't cut the ring.
As some one who has to rebuild hydraulic and air cylinders as part of his job, you did well. One suggestion to help with getting the new seals on the piston and getting the piston back in the cylinder; get some Loctite LB 8801 or equivalent and some SAE 30 ND oil. Lube it up with the Loctite and then drop some SAE 30 oil ND on it and rub it around coating everything. Then do the cylinder. It'll make install easier, prevent a dry start, and help prolong the life of the seals. All of our powder metal and forging press cylinders, both hydraulic and air, are rebuilt this way. And they see 3-6k psi almost 24hrs a day, 7 days a week.
They also make special seal "spoons" for helping get the seals in the cylinder with out them rolling. But I like your method too.
You can also use compressed air with a good air nozzle to remove the piston rod. The tractor worked and was much safer than the previous cylinder removal (though less entertaining) but compressed air is *usually* enough to push it out and not launch it.
Also a little anti-seize on your caps would be a good idea. It'll help you (or the next owner) in the future.
It's so cool seeing how a hydraulic cylinders look like inside.great job keep up the great work.👌👌
Pretty neat, huh? Also there's something satisfying about replacing nasty old seals and o-rings with nice colorful new ones 😂
@@WaldosWorld yea 😂
great video and great work Waldo, if you have a cylinder to do in the future which is a given with old equipment , you can soak the seals and wipers in hot water, just not boiling hot it will make them a little more pliable, the cable tie method worked well, it can also put micro cracks in them, the locknut you removed usually gets replaced, i have reused them to, they are tough to find for older machines and usually charge way too much for them 👍
Thanks for the tip! Heating up the seals is actually a really good idea...it took an uncomfortable amount of force to bend them enough to get them in 😬
Awesome repair and video, Waldo. Nice that this cylinder was easier to repair than the boom cylinder. That cylinder extraction was a hoot to watch.
Thanks, Greg! Yeah, the piston made a very satisfying noise when it came out 😂
Sweet! nice job on the hydraulic cylinder, and also thanks for pointing out a hydraulic hose company! one of the hoses blew on my aunts deere front loader tractor and its been paralized ever since, well be sure to visit that website!
The tricky part of ordering replacement hoses online can be identifying the type of connection (there are many out there), but if you can measure somewhat precisely, you should be able to figure it out. Good luck!
@@WaldosWorld thanks!
Great job Waldo, I always boil my seals just before I install them to minimize damage and make them more flexible. Thank you for a great channel!
Thank you! Yeah, heating up the seals in water sounds like a great idea!
This is awesome. Sharing the learning journey is what makes you real. Keep going.
Enjoy your video's immensely - reminds when I first started out learning how to build and fix things on my own by reading, & working for some pro's who showed me the tricks & how they did it (no Google or even PC's yet) and never enough money to by the tools or all the correct materials I really needed ( lot's of scavenging ) One thing I'm surprise you don't have yet if you're working on old greasy equipment so much is a hot water pressure washer - it would make your life so much easier. I get it though, too many toys, not enough $$, have to prioritize. In time with your hard work & incredible tenacity, that will come about, I'm sure. Keep up the good work & thank God for google & the internet - at least for these purposes!
Great job on the cylinder rebuild. You knocked that out of the park. It’s so informative watching you accomplish these jobs. I also love your commentary with your technical terms of “big scoopy thing” and “little scoopy thing”🤣🤣 Your videos are so entertaining. I saw that leg coming dawn in the beginning and said to myself “yup. He just learned. Gravity never calls in sick” 🤣🤣🤣 Looking forward you your next one and Aspen is such a cutey!! Does she catch the chipmunks??
Thanks, Pete!! As far as I know, she hasn't caught one yet, but it seems like she's getting better at it and learning to be patient and sneaky!
It's always a treat to see your videos. Thank you for sharing.
Thank you for watching!
Very impressive, you fixed it
It’s crazy watching you do all this in your backyard. Quick tip is if you can find a beast of a pipe wrench you can crack those endcaps loose and tighten them without having to make a tool, although that tool is a work of art
Yes, the cap should’ve been much tighter than that. Also if you unhook the hoses the ram more often than not will pull out by hand. The internal seals are always the hardest to get in. The square o-ring as you called it is a backup ring.
When putting those new seals and stuff back in it makes it much easier if you use some lube. Hyd. oil or assembly lube or even dawn soap.
When using the excavator unit make sure the legs are all the way down till they pick the back tires off of the ground to give you more leverage for digging and not moving .
Very satisfying to see this work go together so nicely 👍👍
Loved the video! Great work. Just started on my dyna with some basic maintenance. I'll have to be addressing the hydraulic cylinder at some point too, so I really appreciate the video and the tips on where to find seals and hoses!
Oh good, I'm glad it helped!
You’re going to turn your property into a superfund site. You spill gallons of oil every backhoe episode. Also, you can just use a pipe wrench to disassemble hydraulic cylinders.
Great job. I gotten my share of making hydraulic hoses and resealing cylinders. Milwaukee tools are amazing. I have a stubby 1/2 impact cordless I use at work. Works great use it every day to remove lug nuts. If I get any stubborn fasteners, my 1/2 ingersoll rand cordless does the job
Thanks, Sal! Yeah, impacts really are a must have! 👍
I know this is months old, but if you can find a service/parts manual for the 160 it will have the part numbers for all the cylinder components as well as the part number for a full rebuild kit. No need to measure anything. Just finished doing this for the front bucket tilt cylinder on a 190. Looked up the part number for the rebuild kit and everything went perfectly. No more drip, drip, dip while the backhoe is running. Total cost for the kit was around $35 shipped i think. Unfortunately, I should have ordered two kits, because the other one is doing the same now that cold weather has arrived.
Just found your channel yesterday and you have some great content so far. Keep up the good work! (I had a laugh at the cylinder cap magically appearing at 23:30. I forget stuff like that all the time on reassembly lol.)
Thanks for the tip, I'll keep an eye out for a parts manual! Yeah, I was kicking myself over that end cap and couldn't bring myself to re-film it 😂
@@WaldosWorld it happens to all of us, I’ve rebuilt hundreds of cylinders and I still make that mistake every now & then !!
Oh well, at least it’s a quick & easy fix !!
when i grow up i want to be cool like you
😎
Great job Waldo! Spot on performance and narration. This video could serve for educational purposes. I am very interested in how you are doing everything yourself and not wasting money. I don't know how to commend you additionally for your entertaining content. I only want you to know that if you are ever in Florida, you have a big fan who would like to meet you! Cheers my friend 🚜⚙🛠🔩
Wow Zack, thanks for the kind words!! 🤠
Most of the time you can use a big pipe wrench to get the end cap off instead of making a tool. Love the videos just watched the other 9 today
Wow, that's quite the marathon! Thanks!
great video mate, love the work you have done and love these old backhoes
Tip when you move rubber across metal: put tape on first, because even microscopic cuts will expand to failure under pressure and wear.
Awesome repair
Worked like a charm.
Good job Waldo
put seals in hot water to soften them up
That's a good idea!
I know its a little late but heres a tip. If you use vaseline on the seals instead of oil the vaseline will make the seal shrink a tad which helps when youre slipping everything back together. Oil makes the seals swell which makes them a little more difficult to slip into place.
Another great vid, Waldo!
Thank you! 👍
You talk just like Kevin Mcalister from home alone, just in an adult version 😂
Use a comeAlog to pull the ram. More control
Great videos, thanks for sharing
I learn something from you.
Glad to hear it!
Great job
Great job!!
Another great video - thanks. Just a thought….safety shoes/boots?…..when tinkering with the heavy stuff…ask me why….!?!
Keep them coming great videos 👌
Thanks, Cory!! 🤠
Instead of attaching a cheater pipe to a welded piece of leverage, cut you a square hole and stick a 1" breaker bar in there. It's stronger, more efficient, less time consuming and takes up less space when you put it away. Awesome video! LMK if you ever want an apprentice. Moving to Maine next year!
I would recommend pressure washing your equipment prior to starting the job. Far less chance of contaminating the lines..........
Next time, grease the snot out of those hydraulic seals and it will go in allot easier, won't hurt anything in that old dinosaur... You learned exactly the same way I did, by doing it!! If you ever can't get a piston out of the cylinder, just use the motor and hydraulics, that piston will shoot out of there like a cannon and leave 2 gallons of fluid in your driveway, sometimes they won't come out when the seals roll over inside the cylinder.
Hey Waldo, next time you need a seal kit on the cheap for your backhoe try Fast lift parts. They like $30 a kit, incl shipping. I got few for my later 290 Dyna .There is a parts manual for Dyna 190 in pdf you can download for free and even though a lot of listed kits have different part numbers, essentially they all the same, give or take extra o"rings which are available anywhere, as long as you know your piston and cylinder diameter
Thanks for the tip, Gene, I'll check it out!
Www.bulldogkits.com is another good resource so long as you have rebuild kit part numbers- they have been making aftermarket kits since dynahoe was in production- just got done with 2 outrigger pistons on a 190 using them!
Excellent!!
Cheers! 👍
marie callenders microwave meals to the rescue! Milwaukee tools are pretty badass. I've considered swapping from makita because they make a really nice electric ratchet, and makita doesn't, and I don't want a bunch of different batteries.
Hahaha 🤣 I don't have any complaints about my yellow tools, but if you were starting from scratch, either red or yellow would be good choices, I think
I have Milwaukee grinder, circular saw and large 1/2" impact gun which all go hard. The impact gun built new and repaired older pivot irrigators 5 days a week for 2.5 years and it only needed one new gearbox. It would often shear new 3/4" high tensile bolts if I hung on them to long lol!
Marie Callendar Chicken Teriyaki FTW!
Sneaky guy. One frame you forgot the flange nut. Then the next you had it on. Lol
Haha you caught me 😂
if your ever in a pinch Napa can make hydraulic hoses
Thanks Waldo Another fine video well produced as always ,,Great to here the Detroit in action again , yes great job done alot easier than the bigger boom , you will use the tool for the other side no dowt , will you tackel the other side ?
Thanks, Steve!! Yeah, I was planning on doing the other side off-camera. It’s a lot easier that way 😂
your hands are your main asset, protect them, wear gloves...
It's really cool you're fixing up such a rare machine like this. Ever plan too replace some of the broken windows or Re-Decal it?
Yeah, I would love to do a restoration on it! I definitely plan to at least paint it, though the decals would be a custom job because they don’t sell those as far as I know
@@WaldosWorldThat'd be sweet! Don't think I've ever seen someone redo one. Yeah I was thinking that too. Anywoo GL & Great job !!!
@@WaldosWorld check out www.machinerypartswarehouse.com/ they have decal kits for some dynahoe models and can sell individual decals as well- love the Dynahoe content- looking forward to more!
Cool dood
Nice
Milwaukee beats Dewalt hands down any day but I don’t judge..🤗
I wonder if you have a bypass valve hung up. Seems like the hydraulics can overwhelm the engine, even with some RPM's. Although those detroits have crap power unless running at rated RPM. So I'm not sure. Also the issue with abrupt forward and reverse engagement. Something seems a bit off somewhere, just can't put my finger on it yet.
Apperently the last person that had that backhoe didnt know what they were doing...that outside retaining nut should not have been loose .....which inhand affected the seal with everything floppin around but it should not have been that loose at all ....or they started to fix it and realized it was above their intelligence level
Yeah, they sure let this thing fall into disrepair. I still have TONS of stuff to fix on it 😂
@@WaldosWorld nice to see the ole girl getting some much needed tlc
Ya the last one I did was suppose to be torqued to 850 ft pounds
Do you ever pressure wash things before you work on them?
Waldo never ever pull on a tractor from any point it's higher than your axle. I have had two very close friends of mine killed by tractor flipping over backwards on because they were pulling from above the axle. One of them wasn't pulling anything but a flatbed wagon. And I have seen many many tractors flipped over by pulling from the wrong place.
That's a good point, thank you!
Do you have a video on fixing leak on the hose assembly attached to stabilizer hoses?
I replaced all my hydraulic lines on my backhoe with the hoses from Surplus Center check out their prices
If you are not opening a valve or cracking the lines open on the cylinder you are creating a vacuum... hence why it is impossible to remove by hand. The only time I can't get the rod and piston out by hand is if the cylinder dented or bent. Otherwise they slide right out. I prefer opening the lines if possible. Gives a guy an opportunity to catch the oil.
Next time you do a cylinder like this. Put all the seals and back ups in hot water. Makes them go in so
Much easier
Most piston rods should just pull out. did you disconnect the lines? Great job!!!!
I was looking to see if anybody asked or mentioned this. Heck if a hydraulic system is in good order a tractor couldn't pull it out.
@@ShainAndrews Not pulling out usually means that there's still pressure (or suction) caused by having a hose still attached.
@@kossgroupllc9196 Communicating on line is getting wicked difficult. I do not understand why you are restating what we both said. Good day to you.
Waldo please post part numbers for this repair I have to do this same repair!
Do the cylinders self bleed any trapped air or did you do that bleed process off camera?
Anyone else notice he def didn’t put the gland collar on the first time 😂🤦♂️ I’ve done that a bunch of times. Lol.
Try Tractor Supply for hoses, pretty sure it was around 20 bucks
Hmm yeah, $20 for a 48" hose is not bad, though it has NPT fittings, so I'd need a couple adapters 👍
Heyy Waldo very informative video, I enjoyed watching it, thank. Where did you order the seal kit from, need one for a dump bucket on my 290. Thanks again.
I ordered them from www.mcmaster.com/. They don't sell kits though, so I had to order seals individually by their dimensions. It's not too hard to measure them with calipers and order the right seals
What did that kit run you about, if you don't mind
I think it was a bit over a hundred dollars. The most expensive part was the roll of nylon wear ring stock
I’m going to do this for the first time, when you take the hydraulic hoses off do you have to do anything special or is there no pressure? And when reinstalling does the cylinder self bleed the air out? Thanks
Hey man I know you like the metal saws with actual teeth on the blade but man those things would pucker up my rear end up when I did metal fabrication... I know it sounds harder but I've had better luck with right angle grinders
For greater disassembly control, use the tractor as an anchor and pull the cylinder out with a come-along.
Great work, btw.
Thanks! That’s a good point, though on the other hand, it would make for a less exciting video 😂
should put a link of the line shop on to :)
www.discounthydraulichose.com/ 😎
@@WaldosWorld awesome thank you!
Great job Waldo ! I like that you are not afraid to tackle a new job. Keep up the good work. Are you a dealer tech for your main job until you get your TH-cam channel paying the bills ? Good to see Aspen as always .
Thanks, Scott! No, I have no professional experience as a tech, just an interest in fixing up old stuff 😂. Hope you're staying cool!
@@WaldosWorld Not much of a chance of that here Waldo ! We are in our 35th day of temps over 110. It is what it is
Oof! Luckily for me, I've only ever been down there in the fall/winter when it's nice and cool 🥶
@@WaldosWorld I have lived here for 55 of my 67 years and you never get used to it.Just learn how to tolerate it🌵🔥
Also we call fixing a cylinder REPACKING you repack a cylinder reseal makes it sound like your changing blinker fluid lol
Haha, thanks for the heads up 😂
Would you be able to provide the part numbers you used for the various seals. I would like to put them up on the Facebook Dynahoe users group. I already put a link to this video on their page.
Wow, thanks for the share! The part numbers that I ordered from McMaster-Carr are as follows:
1504N26 - Rod wiper
1995N61 - Rod seal
9505K112 - Rod seal
1537N69 - Head seal
1716N22 - Piston seal
1465N4 - Piston wear ring stock (enough for both cylinders)
9452K38 - Piston o-ring (enough for both cylinders)
WoW great job and your dog Aspen is sure funny ! L o L 😇😇😇
where can I find Dynahoe parts
Question there is. Dynahoe in my area forsale 3500 runs and operates buy a friend told me I should stay away from dynahoe because you can't buy parts. Any truth or opinions on that?
That sounds like a decent deal to me. While there are no "Dynahoe dealers" where you can go for parts, you can typically get the parts you need with a little searching. For example, the engines are usually Detroit Diesels, the transmissions are often Borg Warner, the axles are Rockwell International...all of these parts can be obtained on the internet. Basically, they built Dynahoes using stuff from parts bins made by other manufacturers, so it's likely that you can get pretty much any part you need
You bought seals by dimenssions or as kit?
By dimensions. You'll have a hard time finding kits for these Dynahoes
@@WaldosWorld Can you tell me company so i can buy me some?
I got them at www.mcmaster.com/o-rings
Probably should jave gotten another set of stuff for the other side even if tou werent going to do it immediately just so there wasnt the hassle of having to measure everything again
forgot to install debris shield lol
all hail the algorithm...
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WHY , don't you pressure WASH the Whole nasty machine , before working on various Greasy Parts ?
his name is "WALDO" 😆😆😆😆 lmao.. HEY WALDO!! WHATS UP WALDO!!!!! 😂😂😂
You should be wearing gloves all that nasty petroleum all over your hands.
what a waste of effort....you could have found a better and newer...backhoe.....than this old crate.......oh well....up to you....
This was probably 1/8th the cost of a newer and better machine. Plus it's way cooler to revive an old piece of equipment while learning new things and improving your skills along the way.