Awesome explanation on how the hydraulic system on those work.👍

Great video Jon!! Only tractor I have the chatter on is my 4240 and it's only when I start it after many days of not running and when I start it the first time and the arms have leaked down. It takes many days of not running for them to leak down. I'm not going to worry about it for now but I think I'll start putting the lever down before I start it if arms are down let it run a while then raise them from now on. Thanks and take care man!!

Our 8440 leaks down after sitting for a few hours. When we start it up, it chatters until it's fully up. I'll have to check the coupler remotes for high heat to start. We pull a 36' cultivator with a harrow behind it. Seems slow when lifting wings or the main lifting cylinder. Another note is that there are unusually small lines that extend to the wing cylinders. Great information to look at. Thanks for the video Jon. 💪🔧🚜

Love the start of the video! Little A is supper cool!

Awesome video the John Deere closed center hydraulic system is a animal of its own kind but when you understand how it works it's not that complicated it's basically like a household water system that returns the fluid it has to come to standby pressure. I have noticed that the 10 20 30 40 series don't like extended run time with orbital motors especially Charlynn gerotor motors the whole system and transmission case gets hot I would think that if the oil drained thru a case drain on the return and it had another oil cooler would make a huge difference the one farmer I work goes thru a main pump every summer using a Vermeer hydraulic drive bar rake I told him I could build him a standalone pto drive hydraulic system just for the rake.Keep up the great videos Jon

Great video, and explanation of hydrallic operations of front and rear hydraulic pumps.

Great video Jon! I enjoy these!!

Great video,Jon! Your advices have helped me alot with the diagnose of my John Deere 3040. My tractor s differential section needs to be opened... Best wishes to you and your family!

Great video explaining!

Thanks for sharing Jon! Great information.

Buenisimo el video gracias por compartir todo tu conocimiento saludos.

Damn I wish I knew this sooner. Our 6150 did this since it was new. I wondered why, now I know.

Thank You very much sir. Very informative.

Thanks for the video. If you happen to be setting valves on a 20/30 series sometime, it would be great to see a video on that.

Informative video Jon! Different question for you, how did you guys fair through all these storms?

Really good video Jon. Lots of good information there. I hope you're not too wet down there.

Very good information on how to be better at running the tractor. Still doesn't answer the question of why my hydra cushion seat keeps heading for the roof.

Very interesting

👍👍

I have never experienced the 3010 running out of loader function after years of unloading and stacking thousands of round bales. Im going to try to make it happen next time i drive it.

Iv been watching your videos Since you cleaned the rock trap out on the 8820. I know you was building a shop but did you start your own repair business I must of missed that Video. How did I miss that?

I just bought a 4020 also and I was kind of worried about it cuz I heard this sound at the back of the motor so before I bought it I investigated more and it sounds like it's coming from underneath the dash when I use the 3-point hitch it quietens down or goes away for a second then it comes back I don't know if it's sound coming from somewhere else traveling through the line I thought it was valve noise from the motor but it is not I used a stethoscope... the sound reminds me of air compressor on a semi building up or chattery

I have a John Deere 1040 Y.1981 The pressure on my hydraulics has become worse/weaker (lots of periodic stutter at the rear when it needs to be lifted and and much weaker lift on the load at front after a little use) and worse with time while my clutch has deteriorated (and now needs to be replaced as it no longer works) Also experience that the apparatus at the rear falls down when I use the load apparatus in front. Could this be something that comes from the clutch being defective? (the clutch pedal is adjusted to max to work a little) Also when the rear apparatus in on the ground I cant lift the front -some times it lifts very slow and much faster if I lift the rear before lifting the front. Any hints for this? :)

This explanation sounds good but my 570p JD tractor power steering is very hard to turn and takes a long time to lift the plough. The is an unusual noise when igling. Plz advise.

Hello Jon. Should my arms creep down on my 4055? It sometimes seems to be where the lever is set as sometimes it will keep them up and other times they go down over night. Also how good are you with electrics? I’ve lost illumination for my dash and have no warning lights other than the charging light and no fuel or temp guage and if I put sidelights on without key it brings the digit’s up on the right hand dash but no needle for temp guage?

Why are 4010 hydraulic pumps so loud! My neighbor just got a mystery $5k 4010 diesel and the hydraulic pump is so loud you can’t hear the engine.

Good afternoon, Jo you have given me some good information. I have a John Deere 4000 I bought. to restore changed the radiator and new main HYD pump changed all of the lubricant and filters and screen got it up and running. drove it around the pasture and lost all hyd steering, brakes, and three point. check the screen in the the trans and clear. I loosen the line to main hyd pump very little oil coming out I'm thinking maybe the trans pump is not pumping when it gets hot. You have any suggestion.

Hello Jon, I’ve watched a few of your videos trying to figure out my 3 point and I can’t quite find the answer. I have a 2750 and as soon as the tractor is turned on the 3 point raises. The only way to get it back down is to wait a day or two till it settles. Any advice?

Hello John. Do you know if I can use the plug to the right of my top link bracket for a free flow return. It’s under the 2nd spool on my 4055. I think there’s a return from the trailer brake already on there. Also would I get air cavitation in the oil? I’ve seen some footings with a deflector inside so the oil runs down inside of the casing.

Jon i got a question for you!? I have a 4520 that if you hold the clutch down for a little bit then i loose hyd steering, pop it in neutral and sit for a minute then it comes right back. What could this be?

I have a 4430 that won't turn to the left after you start it. you turn the wheel left & wait til it turns all the way then it will work as long as you are steering it driving straight you will have to stop & Cycle it every so often.what is the problem?

it is an early model. is that the valve under the dash?

Hi John I just bought a 2020 and I'm having some chatter also. I noticed that the remote is leaking and the pump gets noisy when I make the remote leaver. Is that all caused from the leak.

I got a 4010 and can't get midrange most time's. It's not the linkage adjustment cause I can turn the pto on and sometimes get 5th gear but if I take it out of midrange you can't get it again most time but if pto is on and you idle it up then back down it might go into midrange again. What's your idea on this?

Makes sense.. yet doesn't make sense they short it.. but..

Either you live for tearing apart older Deere tractors, or that's your sideline job?

Research the main hydraulic pump please! Your valves in it are wore out. Historically your pump pressure is too high. Your transmission light should be on and change your transmission oil filter between tear downs!