Deere site reviews indicate the X754 has overheating issues. Why not X750 or X758?

[ruffdog]

Most tractors do suggest working at pto speed though and that is a governed speed.

 

[Haasman]

Unfortunately this did not work. The problem continues.

Any further suggestions?

 

[daugen]

Unfortunately this did not work. The problem continues.

Any further suggestions?

I think of you out cutting that thick Spring gas with a mower overheating, a very expensive mower you thought was the very best one for you.
do we have a happy ending yet?
If there are any coolant hoses, I'd start replacing them. Maybe something internally is plugged unless they have been tested.
Having sold my farm, I have a smaller air cooled JD X370 now, and like the one before, I'm now on number three, none of them have overheated, particularly the liquid cooled one.
Though as I said awhile back, a hose clamp had rubbed right through one of my coolant hoses and it was slow dripping. I got lucky on that, no harm, no foul.
And a new hose under warranty for sure. But it was a manufacturing defect to leave the hose clamp rubbing on the coolant hose. One year old machine.
You have to have some kind of manufacturing defect they just haven't identified.

You either have an overheating engine or fake news from your temp gauge. If the temp sensor or thermostat has been checked, I'd start replacing hoses.
If that didn't work, and you don't want to hear this, perhaps some internal coolant passage, assuming that exists, is plugged.
If I had an engine that overheated repeatedly and dealer could not fix, I would appeal direct to JD and ask for replacement engine.
These are top of the line mowers and unless you are operating in some crazy atmosphere like tall hay or weeds, and you clean the screens daily, you should never
have an overheating engine. But then you knew that...

 

[Haasman]

Thanks for your posting daugen.

JD has offered to replace the unit, less wear and tear. I have balked because I am wanting to continue with a diesel powered unit, not gasoline.

There was the update which I installed to supposedly correct incorrect temp reporting and thus shutting the PTO an ultimately the engine off. Made no difference.

It is very evident that the radiator and oil cooler clog with cutting debris. When the PTO thermo-cut happens, I leave it running at idle, open the hood, clear the accumulated debris and wait for cool down. Irritating.

​