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1.故障现象1台D375-5R型推土机工作1万h后,出现推土机推土铲提升缓慢故障,有时甚至无法提升。从厂家提供的技术资料中可知,该推土机在无负载、液压油温度达到50℃、发动机高怠速时,推土铲从地面提升到最大高度所用时间为4.0~5.1s。如果提升时间大于7s应进行修理。现场检查推土铲提升全过程所用时间为6.5s,基本符合要求。但据操作人员反映,推土机连续作业数小时后,才
1. Symptom 1 D375-5R type bulldozers work 10,000 h, there bulldozers bulldozers to promote slow failure, and sometimes can not even improve. From the technical information provided by the manufacturer, we can see that the bulldozer without load, the hydraulic oil temperature reaches 50 ℃, engine high idle speed, the blade lift from the ground to the maximum height of 4.0 ~ 5.1s. If the lifting time is greater than 7s should be repaired. On-site inspection bulldozers to enhance the entire process time is 6.5s, basically meet the requirements. However, according to the operator, bulldozers work continuously after a few hours before