本单位使用的郑工ＺＬ４０（５０）装载机和ＴＬ２１０Ａ、２２０Ａ轮式推土机，其传动部分曾出现４例典型故障。 １．变矩器输出无力 变矩器输出无力，通常表现为装载机（推土机）行驶、作业无力；压力表指针不稳，摆动较大。原因是供油不足，具体情况有以下几种： （１）变速 The unit used Zheng workers ZL40 (50) Loader and TL210A, 220A wheeled bulldozer, the transmission part of the four cases have been typical failure. 1. Torque converter output powerless torque converter output weakness, usually manifested as loader (bulldozer) driving, work weakness; pressure gauge pointer instability, swing larger. The reason is the lack of oil, the specific circumstances are the following: (1) speed