| 摘要 |
PURPOSE:To obtain maximum results of washing within a short period of time by estimating the progress conditions of a washing process from a washing range and the collecting efficiency of foreign matter and stepwise changing the washing range and the mesh of a foreign matter collecting strainer according to the degree of progress to perform washing. CONSTITUTION:First, oil is circulated and passed through a route from an oil tank 8 to lube oil feeding piping 4, a bearing bypass, a waste oil returning pipe 5 and the oil tank 8 to remove the residual foreign matter as far as possible. After that, switching is done to oil passing through bearings, and the whole system is gradually washed. As the weight of the collected foreign matter is reduce, the mesh size of strainers 15, 16, 17 in various places is stepwise made fine. Together with this, the foreign matter returning to the oil tank 8 and remaining there is cleaned by drawing out the oil. The implementation time for heating/cooling/temp. swing of oil temp., and air injection as well as switching between these oil passing routes, switching between the strainer meshes, the timing of oil draw-out cleaning and the washing of an oil cooler 12 is judged from the collecting efficiency of the foreign matter and the contamination degree of the lube oil. |
