针对某型国产挖掘装载机作业过程中经常出现发动机冒蓝烟,同时伴有机油过度消耗故障进行分析,并按照“先易后难、先外后内”的思路,进行故障排查,最终确定导致发动机冒蓝烟及烧机油故障的主要原因是发动机1缸、4缸活塞与气缸套之间发生过度磨损。除了更换相应的磨损零件修复设备外,为防止类似故障再次发生,提出应针对具体应用工况对设备进行操作、保养。 For a certain type of domestic backhoe loader operation process often appear blue smoke engine, accompanied by excessive consumption of oil fault analysis, and in accordance with the “easy first hard after the first outside after” train of thought, troubleshooting Determine the main cause of blue smoke and burning oil engine failure is the engine 1 cylinder, 4 cylinder piston and cylinder liner over wear. In addition to replacing the corresponding wear parts repair equipment, in order to prevent similar failures from happening again, it is suggested that the equipment should be operated and maintained according to the specific application conditions.