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2.5rs 2000 STM
611 Posts
Discussion Starter #1

"In general, a piston is a lubricated sliding shaft that fits tightly inside the opening of a cylinder."

"Its purpose is to change the volume enclosed by the cylinder, to exert a force on a fluid inside the cylinder..."

"A rubber seal is sometimes used to keep the lubricate within the shaft."

"If the seal should break during usage there can be disastrous long lasting consequences for the machine."

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