What causes a hydraulic pump to Cavitate?
What causes a hydraulic pump to Cavitate? The product of excessive vacuum conditions created at the hydraulic pump's inlet (supply side), cavitation is the formation, and collapse of vapors within a hydraulic pump. High vacuum creates vapor bubbles within the oil, which are carried to the discharge (pressure) side. These bubbles then collapse, thus cavitation. What happens when the PTO is off on a tractor? Have to remove the hydraulic pump, right side of the tractor's transmission, and behind it is the PTO clutch assembly. You can feel around in there, the back side of it (engine OFF of course),...