The most clarifying explanation on the topic i’ve heard, thank you sir!

Helou i have mini digger libra 216S.. it loses presure slowly... When i lift boom it wil came to ground slowly when engine is running or not.. What do you think problem is ??? Thanks..

Brilliant and simple explanation..

Nice logic 🎉

Do like to share this informative video please.

Well explained!

Great video , i would like to know , Can i deadhang the pump from the system if from the pump discharge it goes not only to a relief valve but a control block that contains a relief valve, a main spool etc, thanks.

Thank you very much for recording this video. I’ve found very few others that are actually helpful. I have a bobcat 863 that the auxiliary hydraulics lose pressure as the machine warms up. Any specific recommendations for this problem? Greatly appreciate your time.

Thanks for the video

There is "no difference". You cannot seperate pressure and flow. Each one is the result of the other. A pump adds energy into the system. Hydraulic Energy is pressure x flow. How much of each one results is determined by how efficiently a pump can convert Energy to the pressure component of Energy, ie potential energy, and flow energy, ie kinetic energy. The pump's efficiency is strongly related to how much flow is running through it at any given time. At BEP, you get the best efficiency and the highest value of pressure x flow for the electric energy being supplied to the pump. At off BEP flows, low flows produce high pressures and high flows produce low pressures. Adding pipe and equipment into the system changes the resistance to flow and that causes the pump to change its efficiency, which causes a new Pressure x Flow output combination from the pump. You cannot seperate pressure, from flow, or resistance. Look at the hydraulic and electrical analogy. You will see that you are trying to separate amps and resistor and voltage. Electrical engineers do not ever try to separate them. Why bother, the result is the result of all three. Set any two Volts, Amps and you know the last, Ohms, one. Same for pressure, flow and resistance from pipe/valve/equipment. BTW, electrical valves are called transistors.

Wow good lecture.....if i only had lecturers of this tone i could be the next Elon.

Great video, but I don't believe my pump has a compensator. I have a Roper Log Splitter that won't split anymore. The cylinder goes out, but will not push into the wood anymore. No leaks. So either its the pump, the actuator valve or the cylinder? Normally the actuator valve handle would self return to the neutral position when the cylinder fully retracts. It will not do that anymore either. When trying to push into the wood, the engine bogs down. It normally would bog down if it encountered a very hard piece of wood or at the end of cylinder stroke. Any thoughts or help would be much appreciated. I still have a lot of wood to split before winter.

thanks

If you have no pressure its meaning that all pistons inside destroyed 🤣🤣🤣🤣, not just compensator dirty))

7 mins to explain one of the most confusing(at least I thought it was) concepts in the world. Thank you.

Good morning

My accumulator is gushing out oil from the charging valve. What does that mean?

Thank you sir for the video.

Knob turners name, " not me". Awesome.😂😂

I would like join

Clear, concise, brilliant. "Who changed that?" "Not Me" So true.

I need to save this video

Jack i know this is a big ask so i understand if your not able. I have a hydraulic system (for you extremely basic) but would love to understand how the whole system works, not only for troubleshooting but also just to understand how it works. Would i be able to email you pictures/info and you could explain the operation. Again i know its a big ask so i understand if your unable but it never hurts to ask and i love understanding how a system actually works. Thanks in advance whichever your response is, im hooked on your teaching videos. Brian

Quick question. So if you would open the flow control after the system checks out would the pressure now drop because of the load? My system reads 2600 psi with no load but when hooked up to the cylinder for an 4 post auto lift it falls to 800 psi. Cylinder has been rebuilt so that isn’t the cause. Just wondering why the lift seems to be running slower. Thank you for your help. Dan

Thanks, enjoyed the humor. 👍🏽🤠 4/10/23

You are awesome sir!

🇿🇦 Thanks for the lesson Jack

hello, I have the problem with my pump, every time I turn it on, it cant build up pressure but when I open the valve all the way open after 10 seconds it grabs hard and after that it works fine, like nothing ever happen. Can you help me solve the problem? I had this problem before I put new oil and new oil filter.

Calm down son you’re doing fine

I’ve got a 755 jd tractor I’m looking to buy a backhoe with a recommended psi of 300 more than my tractor says it will produce. Can I still use the attachment with 300psi less than it says it needs?

Great tutorial, thank you for sharing your knowledge, God bless and more powers.

So if it did go down the whole pump needs to be replaced? Please lmk

Pumps convert electrical to hydraulic energy.

Sir weeks is a genius in hydraulics

Excellent training. If I were in his company, he would be on my contact list.

awesome teacher

Why didn't the pressure drop when you opened the needle valve at the end.

I'm curious about compasentor

A pump creates pressure and it the system resistance making the level of flow rate, not as explained here!

Very useful! I keep this video on a 'rewatch' playlist that I revisit every time I need to dig up some lost knowledge , and I've come to this one many times over the years but never commented. Thanks a lot Jack!!

Nice information sir

Hi sir jack it's moog RKP pump 80cc with loadsensing compensator which one is set 2nd on the pump compensator if relief valve is setted 200 bar

Yes sir it's true someone turned the pressure above system relief valve and thanks once again

Hi sir Jack thanks for teaching me something i didn't know about torque horsepower controller it amazing because didn't know where to start to set or increase flow as the system relief valve is settled 120 on kawasaki axial piston pump and the roller screen the rollers are running fast and oil is very hot you can cook meat with this hydraulic oil and just touching the tank your hands are burning also electric motor and pump they hot and tripping

How to set a kawasaki axial piston pump K3vg280 with torque horsepower on the hpu because it is the system trips while operating and where should I decrease flow or increase it on the controller

Good🇧🇩

I follow on the procedure however I have a trailer that has the pump submerged in the reservoir with a Honda engine on top. Kinda like a big ice cream machine with paddles inside it that run via hydraulics. I'm having to replace the pump. What would the adjustment procedure be for the new one?

great first step explanation, old time technician but today I learned the best first lesson about hydaulic, thank you

if only they were all that easy. what if u don't have a compinsater and no pressure being generated out of 2 spool valves. but the other 6 valves operate fine?