Fuel pump is three,mobile crane bearing small displacement pump as the outrigger retractable circuit and power supply circuit of rotary mechanism; the larger displacement pump for telescopic crane boom luffing loop and loop injection.( radar bearing ) The largest displacement oil pump and oil pump confluence in the larger displacement car combined control valve common power supply circuit for lifting mechanism.
Whether two or three oil supply, oil supply,ship loader bearing the basic forms of hydraulic circuit for hydraulic pump, the pressure oil discharged a routing pressure relief valve adjustment after the return tank.
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