What is the primary reason for performing differential pressure testing across a hydraulic filter, and what action is typically required if the differential pressure exceeds the manufacturer's specification?

The primary reason for performing differential pressure testing across a hydraulic filter is to determine the filter's level of contamination and assess whether it is becoming clogged. Differential pressure refers to the difference in pressure between the inlet (upstream side) and the outlet (downstream side) of the filter. A hydraulic filter removes contaminants from the hydraulic fluid to protect sensitive hydraulic components from wear and damage. As the filter captures more contaminants, it becomes increasingly restricted, causing the pressure on the ....