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 - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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