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我公司使用的楚天IPF-85B混凝土泵车在泵送混凝土时发生臂架缓缓自动下落的现象,经检查是上段臂架液压缸自动回缩所致。这一故障不但妨碍安全生产,而且影响臂架泵送混凝土的准确性。
The Chutian IPF-85B concrete pump truck used by our company has a phenomenon in which the boom slowly falls down when pumping concrete. After inspection, it is caused by the automatic retraction of the upper boom hydraulic cylinder. This failure not only hinders safe production but also affects the accuracy of the boom pumping concrete.