2538 HST Problems

Mahindra 2538

New member
My 2538 has around 500 hours on it. In the last week the tractor has started to have some issues with the HST. On initial start up the HST pedals will go right to the floor with no resistance. After a few minutes they will come back to normal operation. After using the tractor for 20-30 minutes the pedal will get very hard to push.

Any thoughts on where to start? Fluid level looks good and clean. Changed the Hydro filters to rule that out.