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我部一台2008年产GJW111型挖掘机,在作业转场途中,变速器位置突发猛烈振动和几声闷响。操作手停车检查,挖掘机没有爆胎,变速器周围没有开裂、漏油,车架及连接件没有断裂现象,于是将挖掘机牵引回修理场,做进一步检查修理。1故障初判该型挖掘机的传动系统采用泵-马达结构,液压油路采用液压先导控制,主泵液压油通过中央回
I am a 2008 GJW111 excavator produced in the field, the job transition on the way, the transmission suddenly violent vibration and sound muffled. Operators hand parking inspection, digger no tire, no cracking around the transmission, oil spills, frames and connectors did not break, so the excavator towed back to the repair yard for further inspection and repair. 1 fault judgment This type of excavator drive system using pump - motor structure, the hydraulic circuit using hydraulic pilot control, the main pump hydraulic oil through the Central back