kmx15ra 31N7-10110 31N7-19111 Construction Machinery Hydraulic Main Control Valve For r250lc-7

Learn how this hydraulic main control valve functions as the central distribution hub for excavator operations. In this video, we demonstrate the KMX15RA valve's role in directing hydraulic flow to boom, arm, bucket, swing, and travel functions, plus show common troubleshooting methods for sluggish operation, unstable movements, and oil leakage issues.