Quote:
Originally Posted by GordSanClemente
All levers are not the same?
My levers are pushed DOWN by fluid, but also are retracted (UP) by fluid.
Others have a spring pulling the jacks back up.
I assume in my system, the level in the reservoir should remain relatively stable.
Any agreement or dissent?
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Disagree. True the piston is surrounded by fluid. When most of the pistons shaft is removed from the jacks fluid chamber, as in moved down new fluid must replace the volume previously taken up by the jacks shaft. In the 7-9,000 lb jacks that isn't too much, max of 3 pints but in the 18,000 jacks it is qute a bit.
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