The paper briefly introduces the structure and working prinple of working devices of 72-71B wheel - loader - reversing device, position limitators of lining arm and for leveling the bucket.

• 简要介绍72-71B轮式装载机反转工作装置举升臂限位器和铲斗放平限位器位置的构成，各部分结构及工作原理。