介绍宇通客车电涡流缓速器手控开关、速度控制开关、气压控制开关、继电器盒等故障的检测方法。
The authors introduce the troubles inspection methods of the manual control switch, speed control switch, gas-pressure control switch and relay box of electromagnetic retarders used in Yutong coaches.
该机采用气压传动，继电器控制，操作简单。
The machine is drove by compressed air plant and controlled by relay. so it is easy to operate.
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