Excavator Komatsu PC1250-7 Hydraulic Pump Transfer Case PTO Shaft Assembly 21N-38-00034 21N-38-00060 Product Overview Komatsu PC1250-7 Excavator PTO (Power Take-Off) Transmission Assembly Part Numbers: 21N-38-00034, 21N-38-00060 Common Operational Issues Insufficient PTO output power, power drop under loaded operation Abnormal noise from transfer case, housing vibration during operation Oil leakage at transfer case mating surface and shaft end, damaged oil seals and gaskets