Posted by soundguy on July 20, 2013 at 14:31:35 from (207.30.46.70):
In Reply to: ford naa posted by big farmer on July 19, 2013 at 19:13:32:
pressure test it. put a 0-3000 psi gauge in the plug in the option cover, chain the lift arms down.. reg it, and then run the lift up, rpms up. see what pressure it makes ont he gauge vs relief.
ps.. if it has a huge leak in the pressure / cyl side of the circuit.. that may be the issue too.. as you are bleeding off the oil as fast / faster than it 'makes' it.
that said. the vane pump usually gets changed out.. etc..
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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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