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一台沃尔沃EC210BLC型挖掘机的动臂提升缓慢。产生这种故障的原因很多,碰到类似的故障时,不要急于去拆卸某些液压元件,应当通过思考,运用测试手段来解决问题。
A Volvo EC210BLC excavator has a slow boom lift. There are many reasons for this kind of breakdown. In case of similar faults, do not rush to dismantle some hydraulic components. You should solve the problem by thinking and using test methods.