Hi everyone I have a Mini excvator komatsu 2001 and I have Hydraulic Piston Pump Assy PC30MR-3 Valve and I guess someone just mess with it can you please provide me with some resources about how to fix it, or if there videos/pictures that I can benifit form it beacuse the valve is kinda empty it does not have only spring in it which kinda of wrong I wish the help This is the valve that I am talking about it The excvator model is PC30MR-1 Manufact. Year is 2001
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