No.1 engine is the power core of DWL-48 tamping car,whose performance influence is very great.once fault ap-pears,it will directly influence the construction progress and quality of line,and even affect the opening and operating line.This paper analyzes control circuit principle of No.1 engine starting system of DWL-48 stable continuous tamping car,and puts forward common processing methods of No.1 engine starting system fault of DWL-48 stable continuous tamping car.%一号发动机是DWL-48捣固车的动力核心,其性能影响很大,一旦出现问题将会直接影响施工进度和线路质量,甚至影响线路的开通和运营。文章分析了DWL-48连续捣固稳定车一号发动机起动系统起动控制电路的原理,并提出了DWL-48连续捣固稳定车一号发动机起动系统故障的常见处理方法。
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