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我公司一台多田野TR2000M型汽车起重机回转不灵,起初表现不明显,仅在4节吊臂全伸出后回转有轻微发卡的现象,后来随着工作时间、负荷的增加,在起吊重物时吊臂往往会停在某一位置而不能转动到位。经外观检查发现,回转优先阀和回转液压
My company a multi-field TR2000M truck crane slewing is not working, at first the performance is not obvious, only after 4 full boom out after a slight rotation of the card issue, and later with the working hours, the load increases, lifting heavy objects When the boom will often stop in a position and can not be rotated in place. The appearance inspection found that swing priority valve and swing hydraulic