Possibly someone modified the linkage to divert all hydraulics to the loader, just a guess.
But inside the right cover, below the seat, is the linkage to control the lift. Open the cover and see if anything looks out of place. The roller lever that extends up from the pump is what controls the pressure to the lift cylinder. When functioning properly there is position control and top limit control so the pump never deadheads. The roller only moves a fraction of an inch to raise of lower the lift.
Here is some info on it, a shop manual would be a good investment. Be extremely careful not to reach in there with it running!
Might post on the MF board for more specific instructions.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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