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徐州工程机械研究所在２０００年开发的ＷＹ２０Ｃ型履带式液压挖掘机推向市场后很受用户欢迎，产品供不应求。其电气系统采用２４Ｖ单线制负极搭铁形式。下面就其充电系统可能出现的故障从原理上进行探讨，供用户在使用过程中参考。 该型挖掘机的充电系统由交流发电机、点火开
Xuzhou Construction Machinery Research Institute developed in 2000 WY20C crawler hydraulic excavator to the market very popular with users, the product in short supply. The electrical system uses 24V single-wire negative ground form. The following on the charging system may occur from the principle of failure to explore for users in the course of reference. This type of excavator charging system by the alternator, ignition on