Because the hydraulic pump manufacturer modified the HD valve design of the hydraulic pump and added a damping hole,the pressure of the HD valve will be lost.In addition,the control hose of the winch is too long(10 m),and the pressure loss generated during the transmission of the control oil is too large,resulting in insufficient pressure build-up for the pilot control pressure of the system.By changing the control circuit and reducing the motor pilot control pressure,the output speed of the winch is increased.
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