Excavator Hydraulic Pump 708-2L-00680 708-2L-00681 708-2L-00682 Komatsu PC1250-8 Main Piston Pump Pressure Pump High-performance hydraulic pump designed for Komatsu PC1250-8 excavators, available in multiple part numbers for main and auxiliary pump applications. Common Faults Insufficient output pressure of main pump, weak digging force and slow machine movement Abnormal noise and vibration of pump housing with loud operating noise Severe internal leakage of main pump or