1台日立ZAXS230型挖掘机进行拆除河流下游围堰施工。在围堰将要完成拆除时,由于上游突然放水泄洪,水位迅速上涨,导致挖掘机被水淹没。两天后,挖掘机被吊到岸上,随后开展了以下修复工作。1.柴油机的修复柴油机修复步骤如下:首先,拆下柴油机的6个喷油器,发现除Ⅱ缸外,其他5个汽缸均流进较为干净的水。其次,拆下排气管和油底壳,从喷油器座孔往汽缸内加入适量煤油,用启动机带动曲轴转动,以清洗缸套组件。此项工作需连续清洗几次,直到各 A Hitachi ZAXS230 excavator to remove the downstream cofferdam construction. When the cofferdam is going to be demolished, the excavator is submerged due to the sudden release of flood water from the upper reaches and the rapid rise of the water level. Two days later, the excavator was suspended ashore, followed by the following restoration work. 1. Diesel engine repair Diesel engine repair steps are as follows: First, remove the six diesel injector, found that in addition to Ⅱ cylinder, the other five cylinders into the more clean water. Secondly, remove the exhaust pipe and oil sump, add appropriate amount of kerosene to the cylinder through the hole of the injector, and turn the crankshaft with the starter to clean the cylinder liner assembly. This work needs to be cleaned several times until all