Interpretation:1. Supply flow rate is set to 30+/2 LPM to port B. Set the pressure >41 Mpa2. Connect Port A to a Load Circuit with a flow meter, then return to tank. 3. Check and record B port pressure within Table-1 when oil started to flow out (3LPM) from Port A4. Continue test, record the supply flow and flow from Port A, the B port pressure should be within 38Mpa ~40Mpa when the flow difference is greater than 1LPM5. Continue test, record the supply flow and flow from Port A, the flow difference should be less than 4.5 LPM