The hydraulic pump is the hardest working component of a hydraulic system. And as the pump wears in service, internal leakage increases and therefore the percentage of output flow available to do useful work (volumetric efficiency) decreases. If volumetric efficiency falls below a level considered acceptable for the application, the pump will need to be changed-out. In a condition-based maintenance … Read more
Tag Archives: hydraulic pump
How to Know When NOT to Use Fluid Power
In the current inflationary environment, the debate concerning peak oil (the end of cheap mineral oil) and global warming (the end of the planet as we know it) have been somewhat sidelined.
But these two major issues have not gone away. And they will almost certainly influence the source and cost of our energy needs for some time to come.… Read more
Hydraulic Pump Leakage and Changeout
In a condition-based maintenance environment, the decision to change-out a hydraulic pump or motor is usually based on either remaining bearing life or deteriorating efficiency, whichever occurs first.
Despite recent advances in predictive maintenance technologies, the maintenance professional’s ability to determine the remaining bearing life of a pump or motor, with a high degree of accuracy, remains elusive.
Deteriorating efficiency … Read more