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 - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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