> If the cylinder is allowing fluid to pass around > the packing on the piston, the fluid simply > moves from one side of the piston to the other, > allowing it to sink back into the cylinder.
As the piston sinks into the cylinder the shaft follows it, taking up some of the space formerly occupied by oil. Draw a lengthwise cross-section of a fully extended cylinder and a fully retracted one. Compare the two drawings and it will be obvious that there is less room for oil in the fully retracted one. Thus in order for the cylinder to retract some oil must leave it.
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Today's Featured Article - Running Beans in East Central Indiana - by The Red, John Fritz. Fall is my second favorite season behind the long days of summer. The calendar reads late September and it�s time to start running beans. This article is about my experiences helping my farm neighbor Ernie Swoveland, along with his grandsons Jeff and Craig Ring, with the soybean harvest in East Central Indiana for the 1999 season.
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