Looking for some help on diagnosing a problem with a Auto Crane 5005H. So this unit came off a service truck but we set it up in a shop. It has 2 cylinders to lift and extend the boom and it has 2 hydraulic motors to wind the cable and turn the table. So we have a continental hydraulic PVR6-4B20 hydraulic pump mounted behind a 5 hp electric motor. This pump can supply .7 cubic inches per revolution and 2000 psi at 1800 rpm. What we are experiencing is the pump stalls the motor off before we can even adjust the pump to have more then 500 psi. I assumed the relief valve in the main control valve for the crane is enough or do we need to install another relief valve before the control valve? Any help is appreciated.
Auto Crane 5005H ideas
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