Whining ym3000

[auraaura-HT]

My ym3000 has lately developed a really noticeable what I'm going to call a whining noise in the lift. It is coming from under the seat area, not at the front/engine part of the tractor. Not where the hydraulic pump is. And-it seems to be most noticeable on the right side of the under seat area. I made a short video but file size is too large for uploading-so I made an audio recording. Hopefully you can hear enough to make sense of it. I was manipulating lift arm up and down while I was recording. Anybody have any ideas??

 

[winston-HT]

My old ears don't hear any change between beginning and ending. Are you familiar with the sound of a relief valve releasing? Did the noise come up suddenly or gradually.

 

[auraaura-HT]

No, I unfortunately don't have any experience with relief valve noises. It came on over the span of the last 2, 3, or maybe 4 times I've used it. I used it a few days ago and didn't hear anything. But today it's back.

 

[bmaverick]

Either a valve was turned to restrict flow for the whine as Winston pointed out or there is a good possibility the hydraulic screen re-usable mesh is clogging up fast and soon the tractor will stop working all-together until the fluid is drained and the screen mesh is cleaned in a 5-gallon bucket with diesel and a soft tooth brush.

Your YM3000 is like a YM2500 for the rear hydraulic system. The Deere service manual TM1192 would cover this completely in English and it's for free on the YTOG. I had the misfortune of my first time in dead of winter and on an solid sheet of ice while plowing the driveway. It was brutal.

Clean it until there is no debris and you can see light thru the holes when held up to the sun or shop light.

And the most important part, refill with CLEAN JDM J20C fluid that is spec'ed out for our machines. That is Yanmar TF500A or Deere Hygard or a known brand stating 'meet's JDM J20C and never compatible nor recommended (marketing hype). Also Kubota UDT meets JDM J20C as well in cause you are comparing prices. Its the same fluid overall. You will need 19qts !!!

 

[auraaura-HT]

I just changed hydraulic fluid last April with Traveller Premium Universal Tractor Trans-Hydraulic Fluid. It's J20C. I didn't attack the mesh screen with a toothbrush but I did rinse it with diesel until it looked clean. Seems like I even rinsed it with gasoline after diesel and then let it air dry. I would love to have the Deere service manual TM1192 but I'm in Mississippi and YTOG won't let me in for some reason

 

[auraaura-HT]

Oh, and that winter fluid change looked like a character building experience!!

 

[bmaverick]

I just changed hydraulic fluid last April with Traveller Premium Universal Tractor Trans-Hydraulic Fluid. It's J20C. I didn't attack the mesh screen with a toothbrush but I did rinse it with diesel until it looked clean. Seems like I even rinsed it with gasoline after diesel and then let it air dry. I would love to have the Deere service manual TM1192 but I'm in Mississippi and YTOG won't let me in for some reason

First turn off your VPN, then login to the YTOG. Turn on the VPN, now navigate to the WIKI section, it a member only area. Membership is free.

YIKES! gasoline on the olifin membrane mesh media. That's a no-no. This can melt the olifin plastic mesh!

 

[winston-HT]

Is your round stop valve below and between your legs open good.

 

[auraaura-HT]

YIKES! gasoline on the olifin membrane mesh media. That's a no-no. This can melt the olifin plastic mesh!

Oops. If it melted it wasn't an obvious meltage. Maybe it's ok.

Is your round stop valve below and between your legs open good.

Yessir.

I've done a bit of box blade work this morning. It's quiet, no moaning/whining. Odd that it comes and goes.

 

[bmaverick]

Oops. If it melted it wasn't an obvious meltage. Maybe it's ok.

Yessir.

I've done a bit of box blade work this morning. It's quiet, no moaning/whining. Odd that it comes and goes.

IT moans due to the hydraulic suction pump trying to overcome the flow restriction. In time, if the restriction is not corrected, the pump will wear out prematurely.

 

[auraaura-HT]

Thanks, Maverick. I changed the fluid and cleaned the filter back in April. I've put 91 hours on it since then. But....the noise just started a couple of weeks ago, maybe 2 hours ago. How would you account for the noise just now starting instead of back when the filter was potentially damaged???

 

[auraaura-HT]

Well, I've gotten it quietened up. I adjusted the feedback rod--the turnbuckle that I put a yellow arrow pointing to. The john deere TM1192 manual gave the procedure for how to adjust it and how much free play to aim for. After I got it done it's as quiet as it was before all this started. Thanks bmaverick for pointing me to that manual !

 

[bmaverick]

Well, I've gotten it quietened up. I adjusted the feedback rod--the turnbuckle that I put a yellow arrow pointing to. The john deere TM1192 manual gave the procedure for how to adjust it and how much free play to aim for. After I got it done it's as quiet as it was before all this started. Thanks bmaverick for pointing me to that manual !

Does your machine have DRAFT CONTROL?

 

[auraaura-HT]

Yes it does.

 

[bmaverick]

Yes it does.

Draft control is a rare option. Even on a YM3000. A YM1720 and YM2310 are known to have it frequently, the other models sparingly.
Its like having factory power-steering, its rare, yet often on the YM1720.

 

[auraaura-HT]

Well.....maybe not? How can I tell if it does or not? I was thinking it did because there's a lot in my shop manual about draft control that I haven't spent much time trying to comprehend. BTW, the whining has returned. When I have my rotary cutter on the tractor it's pretty noisy. I guess it's because it's heavier than my box blade? When the noise starts I can lower the control lever just a hair and the noise will stop. It does this no matter what height the lift is at (not just at the top).

 

[winston-HT]

I don't believe the 3000 has draft control. If so, you would have an inner and outer control handle.

 

[auraaura-HT]

I only have one control handle, so my tractor doesn't have it. Any clues to the noise I'm continuing to hear? It sounds like the noise I hear when the lift is straining to lift something that's more than it can handle.

 

[winston-HT]

What size rotary cutter do you have? Do you know the weight of it? You stated letting the cutter down a hair would stop the whining. If so, Why not just raise it a tad to high, then let it down to wanted height and keep on trucking. Definitely sounds like a c lift control problem. I am guessing you have tried numerous adjustments non the feedback rod.

 

[auraaura-HT]

What size rotary cutter do you have?

5 foot, weight is supposed to be 432 pounds.

Why not just raise it a tad to high, then let it down to wanted height and keep on trucking

That's what I've been doing. I'm just trying to head off any potential problems. I've decided though to just do as you say and keep on trucking-worry about it if and when it breaks.

I am guessing you have tried numerous adjustments non the feedback rod.

Yes, numerous.