This guy has the gift of teaching. Thank you!

@madaxe79

3 жыл бұрын

Not bad for a young fella hey. I grew up around hydraulics but never listened to my dad while he was alive, and now there’s all these questions I have, and this young fella is answering them for me... what a champ

This is seriously the easiest way to check cylinders! Amazing mate!

Thank You for such a well presented video. No fancy moves, just straightforward helpful stuff as always!

I’m sardinian, here in my country I’m not able to find this kind of video-tutorials in my language, people like you are very usefull also to teach more english to us “the foreigners” ;) bless you

Absolutely great video! You described the problem succinctly with detail and with a demonstration. Leaving little doubt in the observers' mind! Well Done!!

Another great video with simple easy to understand demonstrations thank you

What a great teacher. He's able to show things in such and such a simple manner that it's easy to understand.

@cl7510

4 жыл бұрын

Allan Holiday He is. Wish I would’ve had someone like him to learn from back when I started wrenching on heavy equipment.

Amazing to see. Simple but not obvious !!! Thank you

Well done presentation. Thank you for sharing your knowledge.

Very good demonstration and clear simple test. Thanks hips!!!!

Your clips are very easy to understand even for foreigners like me. Thank you so much.

Best training i have ever attended infact its difficult to demonstrate theory as well practical... which is very well explained and covered

Brilliant. Man you are really blessed with knowledge and teaching skills.

Very useful, thanks a lot for sharing, the presenter is an amazing man, god bless

Brilliant. Waiting for coming Videos.... thanks a lot

Great videos! Thank you.

thank you for your training, plz advise us the leakage criteria as well

Great demonstration and very useful - Thank you for sharing.

@CustomHydraulics

3 жыл бұрын

We are glad you found it useful. We'd like to help you more if you any other questions register them here: www.hydraulics.training/ASKAPTLive And we might answer them tomorrow as we are doing live Q&A to answer any Hydraulic questions. We'd love you to join us: facebook.com/events/176497570992728/

Great and clear explanation. Thank you so much.

Good Test - Thank you!

A very clear explanation, thank you :)

Excellent video, worth its weight in gold.

Nice video. It's very helpful. A month ago, I experienced problem from two of our hydraulic cylinders wiper seal. The seal move out from its groove. Initially, I suspected there is a problem with the alignment or seal design. But later, after thinking and looking for possible cause, I found out maybe the problem is because the flow controller (miter out) at the rod side was throttled or restricted that caused over pressure that pushes the seal out. So, I adjusted the flow controller wider. As of now, I have not encountered the same problem but not 100% if my root cause analysis is correct. Please feel free to give your opinion.

Fantastic video!

Excellent video. Thanks!!

I love your teaching my friend ❣️.... Lot of thanks 💕

Great job, thank you for sharing!

Great,, Very informative and easy to understand. Thanks

Wooow I'll do this on my next troubleshooting job.. Helpfull.... Thanks

What, why, and how... Excellent!!! Thank You!!!

Great video!

Very well explained, Thanks Mate

Absolute Genius! well done

thanks explained very well

WOW! I LEARNED SOMETHING MORE TO DAY, THANK YOU!

Please tell me how you constructed that test jig. All parts required to build it. Thanks. Great video. I have a Kubota BX24 where the FEL bucket will curl up but when you release the valve handle it quickly drops down.

Great teacher, thank you

This video is very helpful. Thanks for sharing:)

Simply genius at work..

what a neat trick thank you

great video

Well, this may prove very useful in determining whether my telehandler boom leaking down is a cylinder or a valve to blame. I'm suspecting a valve because there are 4 cylinders to lift the boom, but it is possible that all 4 are leaking slightly I suppose!

Great way to test a double acting cylinder, is there a similar way to test a single acting cilinder?

Thank you very much. Keep up create so easy to understand videos like this

I was thinking how would you do the load dropping test on a loose ram on the bench. Bloody hell, my eyes were opened. You get 6 out of 4 points for that demo.

Excellent thank you cured a problem for me .

Thanks for the video. i would like to know how would you test a cylinder to see if the barrel is faulty? if you have a video of that please share the link. Thanks

Excellent video, very informative and educational. What's the name of that auto "leak free" fittings?

@subcomandante77

5 жыл бұрын

Just quick connects any hydraulic shop should carry them

That was great

Great videos

Thank you very much for the explanation

@CustomHydraulics

3 жыл бұрын

You are welcome! Hey, we are doing a live Q&A tomorrow, to answer any questions about hydraulics, if you have any, you may register them here: www.hydraulics.training/ASKAPTLive Join us live here: facebook.com/events/176497570992728/

Great info thanks

Well done thanks.

thanks That was great!!!!!!!!!!!!!!!!!!!!!!!!!!

Does all the quick connector's leaking valve can survive on working pressure?

Good job👍

Continue the good job

Right on point, thanks.

sir, this test applicable for more than one cylinder/piston more?

Brilliant

yap pritty good how do I test prortional directional valve

Nice, So even if the control valve was leaking would this still conclude that the cylinder is leaking simply by taking off the back port and plugging things off ? Please confirm, thanks

@bigass197

6 жыл бұрын

Well if it's the valve, the cylinder would not move now would it ;) Because even after a leak in the valve the oil has no path to the back of the piston .

What happens if a cylinder wont move in either direction when working the valve?

Hi just came across your channel, I have a question I know probably won't be simple to answer but will see, I have a hitachi ex60-5, the pump is wining only when using the bucket ram, sometimes the when blading the bucket in the ground when you lift the boom up the bucket slaps open, due to this I got the ram resaled but it's still doing this, would it be a control valve?

Just what this doctor ordered ,thank you

@firewoodtime2

3 жыл бұрын

I think i lost the packing yesterday. I was going to try a different valve in the system which meant disconnecting 4 hoses. Now it's only one. Yaay!

Disconnect both hoses and try to compress cylinder, how far will it move ? Try same test with piston seal removed, heck, remove piston all together.

can you demo test a pto driven pump which has no leaks full oil but does not operate boom on backhoe ?

Fantastic

Makes sense thanks

Exelent!

If you block the piston end. What would the pressure read at the rod and piston. If the cylinder is OK

I bought a valve the hose for the valve is 1/2 but that of the cylinder is small how do I determine the the hose for ut

Very good thank you

So if there is a cross port check valve included in the circuit before the cylinder, can the cylinder still retract under a weight?

Thank for that sharing sir.

thanks sir

So a brand new cylinder will not move with this test? You are saying the cylinder you show should be rebuilt?

Thank you

Thanks friend

Would this test work in reverse (capping the retraction port) to retract the piston? It seems unlikely considering your demonstration of surface area, but I’m curious. And would either of these tests work under a load? Please respond. Thanks!

@CustomHydraulics

3 жыл бұрын

Hi Brando, the test method demonstrated will not work in reverse, as you are relying on the pressure operating on the larger surface area to indicate the bypass A cylinder may be bypassing, but if you use this particular test method when the cylinder is under load, or still mechanically pinned at the cylinder ends, the force created by the fluid leaking around the piston will often not be high enough to move that load - the demonstrate method always gives best results when the cylinder is not mechanically linked to your machine. There are other test methods that can be used to indicate cylinder bypass when the cylinder is still connected. :)

@EightiesTV

2 жыл бұрын

This test will work with either port if both directional seals have failed precisely because the pressure in both ends of the cylinder are equalizing if bypass exists, resulting in an imbalanced force equal to the pressure x the cross sectional area of the rod. It doesn't matter which side the fluid originally came in. If the seals are not sealing, it is the same volume.

looking to make a press for forging and pressing hot steel. air powered hydraulic bottle jack is too slow. I know by going with an electric motor and hydraulic pump like on a piece of equipment, like crane, backoh, ect... is the way to go. any thoughts on how to get 15 to 30 tons of pressure with the speed I see in your vidoes. am I on the right track with electric motor and a hydraulic pump system. does piston size matter on cylinder, and what about motor and pump size. forever grateful M. Weber

@EightiesTV

2 жыл бұрын

With a 2-stage pump like the ones used on log splitters.

Lot of love

Useful

Thanks 🙏

Bro Where are you from,,

great ✔✔✔👍👍👍

I have a log splitter that works perfectly. I wanted to be able to remove the cylinder so that I could move the splitter down a couple flights of stairs. (Basically, I take the splitter apart so that I can manage its weight, all by myself, by taking it down the stairs in pieces.) My solution was to put quick connects onto the in and out ports of the cylinder. The problem I'm having is that the splitter won't work with the quick connects in the line. (Totally locked up... the ram doesn't even move slowly.) Could somebody please explain to me what could be going on here? I'd really like to get this sorted out, as I have to move the splitter semi-regularly. Thank you very much!

Nice 👍

Is there a situation where this test would fail to diagnose bypass? What if there’s 2 opposing seals on the piston? Could that not create a situation where it would only bypass in one direction?

Good education

when you removed extraction port , do you caped it as presented on blackboard

@CustomHydraulics

3 жыл бұрын

Hi Mohamed, the hoses and fittings used on this equipment are quick connect fittings, when disconnected, they are automatically capped/closed to prevent fluid flow. This is explained at the 3 minute mark in the video

I am actually hesiitant if you can use this technique for very large pistons. Can it be? Thanks!

@CustomHydraulics

3 жыл бұрын

The test method should be ok for larger pistons, the same theory applies, that the bypassing fluid goes around the piston, and then acts on the larger surface area, resulting in the cylinder extending

Is it possible for a double acting cylinder to leak during extend but not during retract? This procedure only test for leaks during retract. How can I test both directions?

@djtino666

6 жыл бұрын

some cylinder have two seal .. on for each direction .. so the best way to test that is with a flow meter ... if you put the cylinder at the end of travel .. hold the DCV ... and if there is fluid coming out (or in) your seal is leaking

Very smarts 👍

thanks for the video ,would be possible to do a video on how to bleed the air of cylinder, (backhoe) for me

@EightiesTV

2 жыл бұрын

Fully extend, fully retract, repeat several times. Air is gone. No video necessary.

@gordonbournival152

2 жыл бұрын

@@EightiesTV Hi,thanks for the infos but still doing it,if has a load on it, works perfect when it comes to a point of free from load i always got air in the cylinder ,i can move by hands about 4 inches ,was wondering if it can comes from my spool valves,its a block of two joysticks, thanks

This is a good example of what not to do. Never check a bypass test with the opposite side closed to air.

Cheers

what makes a cylinder act spongee

@jontheroofer1968

6 жыл бұрын

kane kane air in the cylinder for one

What about a cylinder that only has one hydraulic hose

I have a log splitter that when I hooked it all up the motor starts fine when it's not hooked up to the pump but when I hook it up to the pump involves it down so much that it does not want to start what seems to be the problem here

@jimjohnson2929

5 жыл бұрын

Please help

@ejsimpson8270

5 жыл бұрын

Sounds like the oil from the pump is being dead headed causing too much parasitic load for the engine to start.

@EightiesTV

2 жыл бұрын

Spool valve is not dumping the high pressure side into the tank when the valve is in the neutral position. Could be a broken spring or bent spool keeping the valve stuck in forward or reverse.