本文件规定了安全要求、试验程序，并制定了伸缩式机械螺钉和螺母式牵引杆千斤顶和液压牵引杆千斤顶应用的最低验收标准，该牵引杆千斤顶拟安装在可互换牵引机械的工具舌上，以下称为“工具”，作为原始设备或安装有千斤顶附件支架的千斤顶。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies safety requirements, test procedures, and establishes minimum acceptance criteria for the application of telescopic mechanical screw- and nut-type drawbar jacks and hydraulic drawbar jacks intended to be fitted on the implement tongue of interchangeable towed machinery and hereafter referred to as "implement(s)" as original equipment or jacks fitted with a jack attachment mount.All current amendments available at time of purchase are included with the purchase of this document.