massey ferguson 35x hydraulics..

[RT99]

Hi All,
i've recently fitted a new flail mower to my 35x and it was working fine for an hour- then hydraulics lifted by themselves and wont come down even though operating lever is down,
Next day i went down to have a look and played with the draft control lever ( its position is all the way forward- as its always been..not sure if thats correct just how previous owner had it set) while tractor running there was a short crunch like shifting gears now it works again??
My question is- Is the draft control lever meant to be all the way forward for using a mower on the 3 point??
i'd rather disable it altogether, not needed for cutting grass.
Or does the problem i had indicate a need to dismantle and full inspection of entire hydraulic sytem??aka a lot of work
Cheers.

 

[RNeumann]

The crunching sound is interesting. I’d be inclined to think (and hope) that something external was binding- linkage, driveshaft etc. With no down force on the mower/3 pt that would be my SWAG.

 

[Dave M7040]

Did you properly set the pto shaft length? Each implement installation will require special attention to get things so they do not put excessive pressure on the rear of the tractor when the implement is raised.

Dave M7040

 

[RT99]

Hi, I dont think anything was binding and i cut pto shaft a bit short if anything its alright, Perhaps being fairly new to tractors i was using the whole range of travel of the operating lever for the 3 point- after studying the manual i concluded that you put the stop above the "fast" response range of the quadrant so now I'm only usiing the upper half of the quadrant for raising/lowering.
All a bit confusing.. Does anyone know where the draft control lever should be to disable it??
thanks,