Mahindra Emax 22: All hydraulics stopped working

zgras · Sep 30, 2020

Hello all - thank you in advance for any help you are able to provide. I have a 2015 Mahindra Emax 22 HST. My brother in law was mowing with a midmount mower yesterday when, without warning (no wierd sounds, etc.) the power steering stopped working, followed by all other hydraulics (bucket, both mid and rear pto, 3 point) including the hydrostatic transmission. The tractor now starts up just fine, but can't move forward or backwards, can't lift the mower, can't lift the bucket, can't turn the pto, and can't turn the steering wheel (well, not easily). Hydraulic fluid looks clean and the level is in the middle of the window indicator. The shaft that runs from the engine toward the rear of the tractor (apparently to power the hydraulics and the rear wheels) is spinning when the engine is running.

I heard that some tractors have a relief valve on the hydraulics. Could that be the case on my Emax 22? Or are the hydraulics gone? Is there a separate pump that supplies hydraulic pressure to everything (HST, steering, loader, pto, 3pt), or is the pump integral to the hydrostatic transmission? If the pump is separate, is it located under the seat?

My powertrain warranty lasts a few more weeks, but my dealer told me that a hydraulic pump wouldn't be covered but the HST would... so, I'm trying to figure out where the problem lies and if it is part of the powertrain or not.

The dealer was stumped when I described the problem.

Thanks for any clues!

K5lwq · Oct 1, 2020

I would get it to the dealer before the warranty is out. If the HST is covered, and they fix that problem it might solve the other issues as well.

zgras · Oct 1, 2020

K5lwq said:
I would get it to the dealer before the warranty is out. If the HST is covered, and they fix that problem it might solve the other issues as well.

The HST is covered, but I am afraid they will find it is a hydraulic pump that is the problem (and affects HST); they told me the pump (or any other bolt-on addition to the drivetrain) is NOT covered by warranty. I am hoping someone out there can advise me on the likely problem so I can decide whether to fix it myself (if it is not going to be covered under warranty) or haul it to the dealer (if the problem will be covered).

K5lwq · Oct 1, 2020

I would think an argument could be made that the pump is part of the HST system. I also doubt the pump is bad. More likely the pump shaft would be the issue.

Pumps usually will show signs of failure long before they just quit. Something else would almost have to be the issue for a sudden failure.

I still would be having a serious discussion with my dealer on how to proceed. I also would want to be notified of anything that will result in charges be brought to my attention before they do the work.

Getting the tractor in their hands before the warranty expires would be crucial in my opinion. If you do not trust that dealer, take it to another Mahindra dealer.

JP76 · Jun 30, 2022

zgras said:
Hello all - thank you in advance for any help you are able to provide. I have a 2015 Mahindra Emax 22 HST. My brother in law was mowing with a midmount mower yesterday when, without warning (no wierd sounds, etc.) the power steering stopped working, followed by all other hydraulics (bucket, both mid and rear pto, 3 point) including the hydrostatic transmission. The tractor now starts up just fine, but can't move forward or backwards, can't lift the mower, can't lift the bucket, can't turn the pto, and can't turn the steering wheel (well, not easily). Hydraulic fluid looks clean and the level is in the middle of the window indicator. The shaft that runs from the engine toward the rear of the tractor (apparently to power the hydraulics and the rear wheels) is spinning when the engine is running.

I heard that some tractors have a relief valve on the hydraulics. Could that be the case on my Emax 22? Or are the hydraulics gone? Is there a separate pump that supplies hydraulic pressure to everything (HST, steering, loader, pto, 3pt), or is the pump integral to the hydrostatic transmission? If the pump is separate, is it located under the seat?

My powertrain warranty lasts a few more weeks, but my dealer told me that a hydraulic pump wouldn't be covered but the HST would... so, I'm trying to figure out where the problem lies and if it is part of the powertrain or not.

The dealer was stumped when I described the problem.

Thanks for any clues!

What ended up being the issue with your emax because mine is doing the same thing thanks JP