How can you overhaul gear pump?

To overhaul a gear pump, first, disassemble the pump by removing the end cover and any mounting hardware. Inspect the gears, housing, and seals for wear or damage, and clean all components thoroughly. Replace any worn parts, including bearings, seals, and gaskets, and reassemble the pump, ensuring proper alignment and torque specifications. Finally, test the pump for proper operation and leaks before returning it to service.