2010-03-25
According to customer feedback, there is oneKobelco excavatorThe engine emits white smoke when starting and cannot be started. Upon inspection, it was found that three out of four fuel injectors were defective, with only one in operation. Therefore, the engine cannot start in reverse. In addition, mechatronicsComputer boardThe 5A fuse has blown.
During the working hours between 56Hr and 146Hr, it was discovered that fault codes P2127/P2122/P2120/P0686 and W010 were recorded. The specific gravity of diesel was measured using a portable densitometer, and the result was 0.799g/cm3.
The next day, as a treatment for the actual machine, after replacing the common rail assembly, 4 fuel injectors, and the fuse of the electromechanical computer board, the operation returned to normal. → Entrust the Kanto service to analyze and investigate the fuel samples used by this machine. (As it is a paid service)
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