Anti Cav circuits are use to send oil from one side of the cylinder that is retracting back into the pressure passage to suppliment pump flow, An example of this in a backhoe application would be if the boom was dropped quickly into a ditch and the cylinder was requiring more gpm than the pump could supply the anti cav valve would send retun oil from the other side of the cylinder to the side requiring more gpm. In our circuits it is not done within the section but sent out into the valves low pressure circuit to a poppet that can open to the hi pressure circuit if the pressure differential is high enough to open the regen check. So at this point you have lost the cylinder leaking back several inches and stopping problem? I left you a post on the old thread that you may consider, The 2500 lb thing has me fascinated if your packings are good. mEl
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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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