But in this case the load remains the same but the pressure still changes. Since we know that PSI times the area gives us the total force, then if the force remains the same but the pressure changes, the area to which the pressure is applied must have changed. The way that happens in a cylinder is when the oil leaks by the piston the pressure is still trying to push the ram out of the cylinder but now effectively has only the area of the ram itself to push against.
Loader cylinders normally have rather large rams compared to cylinder borer so a pressure difference of 2 to 3 time is normal when they leak. With larger bore cylinders where the difference may be 10 to 1 it is possible to blow hoses or even destroy the cylinder itself if it were to leak without any relief valve to protect it.
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Today's Featured Article - Harvestin Corn in Southern Wisconsin: The Early Years - by Pat Browning. In this area of Wisconsin, most crops are raised to support livestock production or dairy herds in various forms. Corn products were harvested for grain, and for ensilage (we always just called it 'silage'). Silo Filling Time On dairy farms back in the 30's and into the first half of the 40's, making of corn silage was done with horses pulling a corn binder producing tied bundles of fresh, sweet-smelling corn plants, nice green leaves with ear; the
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