本文件规定了显示货运集装箱装卸吊具和抓斗臂状态的指示灯要求。 适用于: a） 带扭锁的集装箱装卸吊具，用于装卸空载和/或载货集装箱； b） 抓斗（底部提升）臂，用于搬运半拖车和交换车身； 当安装到: -ISO 5053-1:2015第3.3节中定义的带桅杆的平衡式起重卡车； -ISO 5053-1中定义的带桅杆的越野卡车: 2015, 3.7; -ISO 5053-1:2015，3.18中定义的非堆叠式低升力跨运车； -按照ISO 5053-1:2015第3.19节的定义，堆叠高提升跨运车； -ISO 5053-1:2015，3.20中定义的可变行程卡车； -ISO 5053-1:2015第3.21节中定义的崎岖地形可变到达卡车； -ISO 5053-1:2015，3.23中定义的可变伸缩集装箱装卸机，“伸缩式堆垛机”； -根据ISO 5053-1:2015第3.24节的定义，平衡集装箱装卸工。

This document specifies requirements for indicator lights to show the status of freight-container-handling spreaders and grappler arms. It is applicable to: a) container-handling spreaders with twistlocks for handling unladen and/or laden freight containers; b) grappler (bottom lift) arms for handling semi-trailers and swap bodies; when fitted to: — counterbalance lift trucks, with masts, as defined in ISO 5053？1:2015, 3.3; — rough terrain trucks, with masts, as defined in ISO 5053？1:2015, 3.7; — non-stacking low-lift straddle carriers, as defined in ISO 5053？1:2015, 3.18; — stacking high-lift straddle carriers, as defined in ISO 5053？1:2015, 3.19; — variable-reach trucks, as defined in ISO 5053？1:2015, 3.20; — rough-terrain variable-reach trucks, as defined in ISO 5053？1:2015, 3.21; — variable-reach container handlers, "reach stackers", as defined in ISO 5053？1:2015, 3.23; — counterbalance container handlers, as defined in ISO 5053？1:2015, 3.24.