【正文】
tion Procedures 梯子檢查程序 Extension Ladders 延長梯 A If the top ends of the extension ladder is not rounded, the ends shall have protective plastic 長梯的頂部不是圓的,必須有保護(hù)塑料帽。 B Test the rung locks and springs before the ladder is erected to make sure the mechanism 梯之前,測試橫檔的鎖扣和彈簧。 C Make sure the rope and pulley works freely and no parts are worn, loose, or ,沒有部件磨損,松動(dòng)或斷裂 。