This paper analyses the usage of LGK series of air plasma arc cutting machine,and enumerates the causes and solutions of striking arc,main circuit,gas path and cutting torch breakdown.

• 分析了LGK系列空气等离子弧切割机的使用方法,例举了其引弧故障、主电路故障、气路故障、割枪故障产生的原因和解决方法。