Loss of digging strength, delayed cylinder action, or unstable pressure output usually points to fatigue inside the main hydraulic pump system. The RITO 31N5-15030 / 31N515030 hydraulic pump is designed for R210LC-7 / R215-7 / R220LC-7 excavators, using the K3V112DT piston structure to rebuild steady hydraulic energy delivery across the machine.
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