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１．故障现象 机器刚起动时，行走、振动一切正常，过了一会儿，逐渐感到无力，同时驱动泵出现振动和噪声。大约半小时后就不能行走了，此时驱动泵的噪声越来越大，目前驱动马达油管感觉有窜动现象。机器熄火后重新起动时，在平道上行走一段时间后又会重复上述现象，且每次的行
1. Symptoms When the machine just started, walking, vibration everything is normal, after a while, gradually feel weak, while driving the pump vibration and noise. About half an hour later can not walk, then drive the noise of the pump is getting bigger and bigger, the current sense of the motor tubing feel movement phenomenon. When the machine is restarted after the flameout, the above phenomenon will be repeated after walking on the sidewalk for a period of time, and each time the line