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1发动机起动困难案例1故障症状:起动机和发动机均有正常启动转速,但不着火;或者有时经过多次长时间的起动方可着火。故障原因:燃油管路有空气。故障性质:机械故障。处理方法:燃油管路排空气。故障分析:“国III”车采用共轨系统,油路排空气相对困难一些,往往操作人员感觉到空气排除干净的,实际还是没有彻底排干净。根据实际使用情况来看,应该松开油泵回油螺栓来排空气,必要时可松开高压油管,利用起动机带动发动机空转来排空气;如果仅仅是松开
1 Engine Startup Difficulty Case 1 Symptom of Problem: Both the starter and the engine have a normal start-up speed but do not catch a fire; or sometimes after a long, long start. Cause of the malfunction: There is air in the fuel pipeline. Fault nature: mechanical failure. Approach: the fuel pipeline exhaust air. Failure Analysis: “Country III ” car using the common rail system, the oil exhaust air is relatively difficult, often the operator felt the air to exclude clean, the actual or not completely drained. According to the actual use of the situation, the pump should be loosen the oil return bolt to vent the air, if necessary, can release the high-pressure tubing, the use of the starter to drive the engine idle to vent the air; if only to release