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推土机在工作中有时会遇到铲刀提升缓慢或提不起来的现象，以致造成工作效率低下，影响施工进度等问题，这里就经常遇到的问题列表如下：序号异常现象主要原因判断方法排除方法１发动机运转正常，但铲刀提不起来（１）主溢流阀阀芯弹簧折断或阀芯被卡住（２）操纵杆调整不当或
Bulldozers at work sometimes encounter the slow blade lift or can not mention the phenomenon, resulting in inefficient work, affecting the progress of construction and other issues, the list of problems often encountered are as follows: No. Anomalies The main reason to determine the method of exclusion 1 The engine is operating normally but the blade can not lift (1) The main relief valve spool spring is broken or the spool is stuck (2) The control lever is not properly adjusted or