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介绍了轮式装载机工作装置液压系统和转向液压系统经常发生的故障现象，并逐一进行了故障原因分析，同时给出了故障排除方法。
The frequent failures of the hydraulic system and the steering hydraulic system of the working equipment of the wheel loader are introduced. The cause of the failure is analyzed one by one, and the troubleshooting method is also given.