Mahindra 6000di Hydraulic issues

mik23kin

New member
Friend has 6000di 4wd tractor with a ml264 loader bucket. Lifts the bucket about 1/2 way and stalls out. It also pushes oil out of the power steering reservoir after running about 30 secs. The upper level of the back case will lose about 1 gallon of oil each time. I started it this morning and the reservoir was already bulged out and finally split from the pressure. Any advice on what to look at would be helpful
 

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I think he has two separate but somehow related issues. The steering and hydraulics are two totally separate systems. The only point in common is the hydraulic pump. The front section of the pump is hydraulics, the rear section is steering. The front pump is allowing fluid to transfer to the rear section (and under considerable pressure at that) where it has nowhere else to go so it's building pressure in the steering tank. This is the weakest link in the chain so it's being damaged by the pressurized fluid looking for a way out.

Now for why this is happening, that's another matter. I believe, once again, that pressurized fluid has nowhere else to go. When raising the loader the oil from the rod of the cylinders SHOULD be returning to the lift housing reservoir, but evidently it's not. It could be as simple as a bad coupler on that particular circuit. Can the loader exert enough down pressure to lift the front of the tractor? The answer to that might tell us something. How doe the bucket curl/dump feature work? That might also help narrow it down.
 
Friend has 6000di 4wd tractor with a ml264 loader bucket. Lifts the bucket about 1/2 way and stalls out. It also pushes oil out of the power steering reservoir after running about 30 secs. The upper level of the back case will lose about 1 gallon of oil each time. I started it this morning and the reservoir was already bulged out and finally split from the pressure. Any advice on what to look at would be helpful
Has that tank been repaired before? The welds on the length of the tank look like they had been TIG welded without any filler rod added to it.
 
I think he has two separate but somehow related issues. The steering and hydraulics are two totally separate systems. The only point in common is the hydraulic pump. The front section of the pump is hydraulics, the rear section is steering. The front pump is allowing fluid to transfer to the rear section (and under considerable pressure at that) where it has nowhere else to go so it's building pressure in the steering tank. This is the weakest link in the chain so it's being damaged by the pressurized fluid looking for a way out.

Now for why this is happening, that's another matter. I believe, once again, that pressurized fluid has nowhere else to go. When raising the loader the oil from the rod of the cylinders SHOULD be returning to the lift housing reservoir, but evidently it's not. It could be as simple as a bad coupler on that particular circuit. Can the loader exert enough down pressure to lift the front of the tractor? The answer to that might tell us something. How doe the bucket curl/dump feature work? That might also help narrow it down.
Can't run it that long. But the extra fluid is coming from the big valve under the seat where the lift arms are for 3 pt hitch. The return line from there is going to the loader controls. Has a lever and control on the left side of the bucket. I assume it's another aux for like a bat wing bush hog. The valve at the front of the seat is off
 
I understand where the fluid comes from and I understand where it's going. My point is the only way that can happen is a problem within
the hydraulic pump. The loader working or not working is a different problem. He will need to address the pump issue first, then deal with the other problem.
 
I understand where the fluid comes from and I understand where it's going. My point is the only way that can happen is a problem within
the hydraulic pump. The loader working or not working is a different problem. He will need to address the pump issue first, then deal with the other
 
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