About the only way to check is to put a gauge on the Aux valve or plug up an implement to see if it works. The lever is two position so if you move the lever forward one valve is energized, move it back and the other one works. Let the juice set a while, add more, try to move it but not too much pressure. It's probably just seized up from no use. BTW it has a "cut-off" feature that will kick the lever to 'neutral' when you reach the end of the cylider movement, as when using a wheel type harrow, BTDT too many times.
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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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