Massey Ferguson 1835M Hydrostatic Transmission

[VinceD]

I have a 1835M Massey Ferguson with the Hydrostatic drive. Purchased new 2021. Ever since it was new, and always on a slope, the hydrostatic drive quits working. You can't move forward of backward. After trying everything possible, it starts working although it may take a day or two. The shop (dealer) can't find anything wrong. Yesterday, while going down hill, the tractor suddenly started to roll forward as it was in neutral. Forward/reverse pedals had no effect. Finally got it stopped with the brake. Has anyone had problems like or similar to this? VinceD

 

[oldnslo]

Has the dealer checked charge pressure when hydrostatic tranny isn’t working?

Does it make any different noises when not working vs normal driving?

Not sure what type of control is on that HST but would also want to monitor pilot pressure if it is electronic control or hydraulic pilot control. This would tell you what the command to the stroking piston for swash plate is.

 

[VinceD]

Thank you for that info!!!