本SAE标准适用于SAE J1057 SEP88中定义的自行式橡胶轮胎装载机、拖拉机、平地机、反铲装载机、拖拉机铲运机、挖掘机和自卸车。包括行车、辅助和停车制动系统以及减速器。本文件规定了制动系统的最低性能和试验标准，以便对范围内定义的土方机械的制动能力进行统一评估。

This SAE Standard applies to self-propelled, rubber-tired loaders, tractors, graders, back-hoe loaders, tractor-scrapers, excavators, and dumpers as defined in SAE J1057 SEP88. Service, secondary and parking brake systems, and retarders are included. This document specifies brake system minimum performance and test criteria to enable uniform evaluation of the brake capability of earthmoving machines as defined in the scope.