根据ISO 730-1或ISO 8759-2规定，规定了将三点悬挂装置机具连接到配有三点自由连杆悬挂装置和a形架悬挂装置连接器的农业轮式拖拉机上的基本尺寸。三点悬挂连接器系统构成了一种特殊的机具安装方法。挂接装置连接器是位于三点悬挂机构和机具之间的附加部件，可从操作员座椅上挂接和松开。适用于ISO 730-1中定义的2类农业轮式拖拉机。

Specifies the essential dimensions for the attachment of three-point hitch implements to agricultural wheeled tractors equipped with a three-point free link hitch according to ISO 730-1 or ISO 8759-2, and an A-frame hitch coupler. The three-point hitch coupler systems constitute a special method of implement mounting. The hitch couplers are an additional component located between the three-point linkage and the implement making it possible to hitch and unhitch from the operator's seat. Applies to category 2 of agricultural wheeled tractors as defined in ISO 730-1.