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NWMO 901 SOS 10-26-2009 20:31:38 216.139.112.244 455522 Report to Moderator

[quote:3d1e94fa48]I disagree with the statement that the level stays constant! When a cylinder is fully extended the oil volume is that of the whole cylinder, BUT when the cylinder is fully retracted the oil volume is that of the cylinder MINUS the displacement of the piston/ram INSIDE the cylinder. I will concede that there is not a great deal of difference, but there is some! As to which position to have the cylinders in when checking the oil level, THAT I don't know! HTH, Dave[/quote:3d1e94fa48] Good evening, The way I picture it, Shetland is nearer on target. I believe the volume displacement from the piston itself will be the same extended or retracted, however in the retracted position you are using less oil as the ram displaces a fair chunk inside the cylinder as pressure is applied on only the outer portion of the piston, the "area" between the ram and the cylinder wall. Typically, you will want to check your oil level with cylinders extended, but it may be different with the reservoir built into the frame. Chris [Reply]   [No Email]