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工程机械电器设备出现故障后,应采取科学、便捷、准确、安全的方法进行诊断,并应遵循必要的检修原则,具体如下所述。1.诊断方法(1)直观检查法此方法不使用任何仪器设备,不改变电路接线,只根据电器故障的外部表现,凭视觉、听觉、嗅觉和触觉等手段,直接观察、检查和判断故障。实践证明,电器设备的多数故障可用直观检查法来发现其故障点,因此对电器设备故障的检修应首先
After the failure of construction machinery and electrical equipment, scientific, convenient, accurate and safe methods should be taken for diagnosis, and the necessary maintenance rules should be followed, as described below. 1. Diagnostic methods (1) visual inspection method This method does not use any equipment, does not change the circuit wiring, only based on the external electrical failure, visual, auditory, olfactory and tactile methods such as direct observation, inspection and judge the fault. Practice has proved that the majority of electrical equipment failures available visual inspection method to find the point of failure, the electrical equipment failure of the overhaul should first