By using examples, the steps of diagnosing faults of machine tool by using Electrical Manual were elaborated and references were given for machine tool maintenance.
结合实例，阐述了利用电气手册进行数控机床故障诊断的方法步骤，为机床维修提供了借鉴。
Improved the CNC machine tool maintenance quality, and reduce to break down the occurrence rate, and increase the diagnosis efficiency, and CNC machine's use efficiency.
提高数控机床维修的质量，减少故障发生率，提高诊断效率，充分发挥数控机床的使用效率。
"Machinery and parts", "benchwork technics" and "machine tool maintenance and breakdown elimination" are main curriculum for benchwork of machine repaires specialties in technical schools.
“机械与零件”、“钳工工艺”和“机床维护与故障排除”是技工学校机修钳工专业最主要的专业课程。
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