标准摘要
[中文适用范围]： 本文件规定了确定后挂三点悬挂系统提升能力的测试程序：a) 液压提升在悬挂点全行程范围内所能施加的最大垂直力；b) 液压提升在连接于三点悬挂的框架上，位于悬挂点后方 610 mm 处，在全行程范围内所能施加的最大垂直力。注 1：静态测试可提供拖拉机之间的充分比较。测试结果仅用于比较拖拉机，不作为推荐拖拉机可携带的农具尺寸的途径。注 2：本测试程序可用于确定前挂三点悬挂系统的提升能力。 [外文原描述]： ISO 789-2:2018 specifies test procedures for determining the lifting capacity of rear-mounted three-point linkage systems: a) the maximum vertical force which can be exerted by the hydraulic lift at the lower hitch points throughout their full range of movement; b) the maximum vertical force which can be exerted by the hydraulic lift, at a point 610 mm to the rear of the hitch points on a frame attached to the three-point linkage, throughout its full range of movement. NOTE 1 A static test provides an adequate comparison between tractors. The test results are used only as a means of comparing tractors and not as a way of recommending the size of an implement which can be carried by the tractor. NOTE 2 This test procedure can be used to determine the lifting capacity of front-mounted three-point hitch systems.
英文名称Agricultural tractors — Test procedures — Part 2: Rear three-point linkage lifting capacity