but....there are only two main components to the system: the pump and associated valves, and the ram piston and associated parts. If the pump is working(do you have the PTO enagaged? The lift will not work without it being engaged and the clutch out) and you have fresh, clean fluid in the sumo, then you have:
a valve problem or
a piston problem or
an adjustment problemThe pump should be putting out 1500-200 lbs at the test port at working rpm. If the valves are stuck closed, the fluid can't get to the piston. It will bypass back into the sump. If the valves are working and you have installed the hydraulic cover gasket correctly, the fluid should flow up through the tube to the piston. If the fluid is getting to the piston and nothing is happening, then you probably have a hole in the top of the piston, or the piston is rusted to the cylinder. All of this assumes that you have correctly installed the control arm into the valve pivot socket and that your cam follower pin is not worn out or broken off and that all the linkages and springs are intact and correctly adjusted, and that the quadrant is adjusted correctly. So. Where do you want to start? First thing I would do is lift the drawbar arms manually and make sure they aren't binding. Then I would remove the right side inspection cover and inspect the innards while the PTO is engaged and tractor is running, in neutral, and the touch control handle was manipulated through its full range. Check it out, let us know what you find.
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