Cylinder Drift 

This channel is pure gold. Really decent stuff

This is excellent! My bobcat has drift and this video would have saved me some time and money!

Love these videos, I'm learning so much, I'm binge watching lol thanks

these are the some of the best videos i have seen on RU-vid. Please keep making more!!!!

Really happy to see this video. I have been arguing with workmates over years who always blame cylinder when they are creeping. Simply barrel has no more space to accommodate rod's volume unless oil escape through valves or rod wiper seal or head. Thanks buddy.

THANKS FOR UPLOADING THIS VIDEOS

Thank you so much sir, for this amazing video, you save my job

Found my bobcat lift arm drift with this knowledge. The emergency arm release valve was leaking. Great videos!

Did you post a cylinder drift in extension video?

I'm a mechanic in the mining industry and our continuous miner has this problem with the head drifting they have changed Jack's but it is a remote operated machine I think a lot of the drift in this machine comes from worn out solenoids in the controller mounted to the valve chest so be adjust on that this evening and I'll let yall know how that goes. Good video also thanks for the diagram

Which software are you using for diagrams?

THANK YOU

I had an outrigger on a truck mounted crane system that would extend down just fine, but would go back up if I used any other controls. only one of the outriggers did this. Do you Have any insight as to what would cause this? im thinking a check valve of some sort

Were is the video with cylinders drifting outward?

Amazing videos, please keep making them. I have not been able to locate the other video on extension drift.

Can you suuggest me a handbook about hydravlic systems???? Thnaks

What application did you use to make this animated diagram sir

Sir what about 2nd condition you mentioned (hanging load)

Sir what will happen if there dubble acting cylender is?

What simulation software is this??? It's amazing!!! 😮 {if it's not just an animation that is}

Really helpful! I thought the piston rod will slide down all the way to the bottom once the piston seal was removed. The nice graphics and your clear explanation made me grasp the concept pretty easily.

What if the gland seal is leaking, but the piston seal is good? Or would a bad piston seal eventually stress the gland seal to failure?

I learnt something new.

Thnx bro

Hi everyone,,,,i want to ask what is the problem of my pc60u backhoe komatsu.the cylinder boom in bucket if you going (out) the rod ok,but if you shift to (IN) the rod the engine become to shout down or off,,,please help me,,,advance tnx

Did you ever end up doing a video on cylinder drift in the retract direction? I ended up working on a telescoping forklift and with the machine shut off the boom would extend. This cylinder has holding valves so another test we did was capping the cylinder off completely and it would still drift out.

Interesting. It is like trying to pull out the plunger of a syringe while your thumb is covering the air hole. Except the seal would be at the top, not against the cylinder walls. So for creep to occur, more oil must be able to get pulled into the cylinder.

How about proper testing procedure for piston seal by pass

When will the site be opened to the public ?

Good Video, I have a an issue with my main up/down cylinder on my Versalift Bucket van. When I toggle the cylinder up it goes up and when I toggle down it goes up. Everything in the tower checks out so far but I haven't done any troubleshooting on the cylinder since it wasn't visibly leaking . Could the internal seals be gone making it go up on both movements?

System Designers might take note of the dangerous amplification of cylinder pressures accompanying that seal failure - since the cylinder pressure will now be set by the rod diameter, not the piston diameter OR the relief pressure. Possibly 3-5 times the cylinder pressure now evident, and over the entire canister. For machinery expected to support heavy loads, a factor of safety of 2-3 based on the rod diameter is a much larger cylinder. Add to that, a pressure relief device or any other device inside the valving will have to contend with 3-4x it's normal operating conditions, possibly leading to an uncommanded lowering, even, unexpectedly, via the rod-end port. No one saw that coming... :/

Great video... Learned a lot....Can you tell simulation software U guys have used for this?

Do you answer questions?

It would have been more pedagogic if it was orange color below the piston before you remove the piston seal and then change to red in the whole cylinder. That would better show that the pressure will (depending on piston rod and piston diameter) increase substantially in this situation when the seal starts leaking or is removed. Now we can se a slight increase on the lower gauge but changing colors would be even better.

Excelente! aula muito obrigado.

Dear Sir............Example Problem I have a single acting hydraulic cylinder with a stroke of 300 mm, a bore of 18 mm and a rod of 10 mm if the press weight is 10 mm on the Piston Head what is the pressure.....Please explain the calculations

great video but you only simulated cylinder 1 what about cylinder 2 with a hanged load? will it be like the first cylinder or not.

Good day Sir. I hope that you can help me for this hydraulic tilt problem.. The problem is the tilt Authomatic release the pressure.. What is the solution for that Sir.. Please give me idea to fixe this problem. Thank you.. God bless...

super

What is the name of a valve i can use to stop cylinder leak down if a hose breaks ..such as in a crane ?

Pumps concrete??

i thought for sure without the seal the piston would make its way down and the fluid below would make its way above the piston.

I have a cylinder at work that drifts back to extended.

could you help with hydraulic power pack circuit working

What is the name of this app?

Just and counter balance valve

Awesome; Even trained hydraulic Techs don't understand this.

Your simulation is wrong. If no seal the piston will slowly drop down because the upper force still exist, but no static counterforce anymore.

🤝🤝🤝

Hi. From Baker Hughes =p

I wish my professor taught us like this

This cannot be true, removing the piston oring sealing will make the piston rod "slowly" sink with equivalent velocity set by the clearance of the piston and cylinder inner diameter, due to the force F from the load.

Please remove that annoying soundtrack... it's distracting from the spoken words.

Blah blah blah job blah read blah job blah school