I have a 2000 M5700 4WD tractor while moving round bales of hay with a rear fork on the 3 pt. lift, it stop working after the fork accidently jumped over a roll of hay when the fork did not insert the hay properly. The lift did not immediately stop working as I moved several more rolls of hay before it stopped working in the down position. I have check hydraulic hoses, levers, fluid, down speed control, etc. with no problems found. However, the lift control lever seems to move freely as well as the down speed control knob--no pressure! The front end loader has a hay spear mounted and it is working properly as is the PTO. Any thoughts appreciated. Thanks!