Hi again guys I have a komatsu Pc300-6 when I start up the motor the pump is killing the motor. I removed the hydraulic hoses from the valve bank and directed them directly to the hydraulic tank . In this way I'm guessing I isolate the excavator systems as faulty . It's still doing the same thing . I have noticed that the front pump does get hotter than the rear pump . Has any one else experienced this problem ?
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