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 - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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