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Excavator Hydraulic Main Pump HPV145 Repair Parts Kit for Hitachi Excavator EX300-1 EX300-2 Excavato

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September 22, 2026
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Video Description:
In this video, we walk you through a complete overhaul of the Hitachi EX300 excavator's hydraulic main pump using our HPV145 repair kit. Watch as we demonstrate the step-by-step replacement of critical components including piston assemblies, cylinder blocks, and valve plates, and explain how this comprehensive kit addresses common issues like low pressure, strange noises, and internal leakage. See real inspection processes and learn practical maintenance insights for restoring optimal excavator performance.
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