Hydraulic Piston Pumps Maintenance By Hydromech Services

WE ARE SPECIALISED IN THE REPAIRS / RE-CONDITONING / REPALCEMENT OF THE VARIOUS INTERNAL COMPONENTS OF THE PUMP LIKE VALVE PLATE, PORT PLATE, BARREL, SHAFT, CRADLE, PISTONS, SERVO PISTONS, SERVO PISTON BORE, CO NC VALVES ETC TO REDUCE THE REPAIRING COST WE CARRY OUT RE-CONDITIONING OF THE INTERNAL SPARES BY THE FOLLOWING PROCEDURES Hydraulic Piston Pump Re-conditioning Every piston pump is assembled from cylinder blocks, valve plates, and piston shoe subassemblies that have been checked and/or re-conditioned to exact tolerance Every cylinder block has each bore diameter checked including its concentricity to ensure pump efficiency Every cylinder block face is machine lap polished to 12 millionths of flatness and is surface treated to allow a thin layer of oil to exist between mated parts Every valve plate is machine lap polished to 12 millionths of flatness Every metering and timing notch on the plate is checked and any found out of tolerance are cut to meet specifications The plate is surface treated to ensure no internal slippage Every piston shoe subassembly diameter is matched with cylinder bore diameters to ensure efficiency within manufacturer's tolerances Piston shoe height is checked on each shoe using a micrometer to ensure the component is within tolerance Each pump is further tested to manufacturer's specification before it is released