JD 2840 hydralic problems unresponsive when warm

[mark muehly]

My jd 2840 wont lift the plow when it warms up and wont hold a load on three point when warm

[J_J]

Your 3pt cyl seals could be worn and leaking.

Your 3pt valve spool could be worn also.

Raise the 3pt with load and shut engine off, and turn the descent knob under the seat to closed and see if the 3pt will stay up. If it leaks down, then the 3pt cyl seals are worn.