The crankcase has to drain before you put on the new filter.
在安放新过滤器之前，曲轴箱必须滴干。
2
The filter pressure drainage and drainage are two ways to manually drain. Manual drainage when the water level below the level reached before the filter must be excluded.
本过滤器排水有压差排水与手动排水二种方式。手动排水时当水位达到滤芯下方水平之前必须排除。
3
Liquids collecting in the coalescing filter sump are automatically drained into the common drain tank.