本文件规定了用于将液压动力从农业拖拉机传输至农业机械的液压耦合器的基本接口尺寸和操作要求。它适用于液压管路中使用的连接器，而不是制动回路中使用的连接器。 注？所有液压联轴器应经常连接和断开，以便在不使用工具或特殊装置的情况下将机械从一台拖拉机转移到另一台拖拉机。

This document specifies the essential interface dimensions and the operating requirements for hydraulic couplers employed to transmit hydraulic power from agricultural tractors to agricultural machinery. It is applicable to couplers used in hydraulic lines other than those used for braking circuits. NOTE       All hydraulic couplers are intended to be connected and disconnected frequently to allow the transfer of machinery from one tractor to another without the use of tools or special devices.