Industrial Rexroth Hydraulic Pump A10VSO71DRG/31R-PPA12N00 A10VSO71DRG/31R-PPA42N00

Follow this sequence to avoid damage:
① Pre-filling: Inject HLP 46 oil into the pump housing via the case drain port until oil overflows; rotate the motor manually 5-8 turns to ensure all components are lubricated;
② Air bleeding: Open the pressure port valve slightly, jog the motor (10s on, 20s off) 3 times--air is purged when continuous oil flows from the pressure port;
③ Control parameter setting: For FR control, adjust the flow control knob to set max flow (e.g., 60 L/min) and the pressure limiting knob to 300 bar (20 bar below peak pressure);
④ Run-in: Operate at 50% speed (750 rpm) and 50% load for 30 minutes, check for leaks (focus on flange and port seals) and abnormal noise (normal noise ≤75 dB);
⑤ Performance test: Gradually increase to full speed and full load, verify flow stability (fluctuation ≤5%) and pressure response time (≤0.2s).

Vertical installation is allowed (motor above or below the pump), but with additional precautions:
① Motor above pump: Ensure the case drain line is installed with a siphon loop (height ≥ pump center) to prevent oil from flowing back into the motor;
② Motor below pump: Fill the pump housing with oil before startup to avoid dry friction of upper bearings;
③ Suction line: Install a check valve to prevent oil from draining back to the tank when the pump is stopped;
④ Ventilation: Ensure the pump housing has good ventilation to avoid heat accumulation (vertical installation may increase temperature by 5-8°C).