The oil level of the cooling tower fan fluctuates significantly
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The current model of the cooling tower fan at our site is LF42D; the impeller rotates at 240 r/min, and the air volume is approximately 380,000 m³/h. During a recent on-site inspection, it was found that the oil level of the fan fluctuated significantly – it would rise above the upper mark at times, and at other times the oil level could not be seen at all. On-site checks revealed no obvious leaks, and the other two fans were operating normally. I would like to ask fellow sailors here: have you encountered similar problems? How should it be handled?
Are there any other issues with the fan? Is the respirator clogged? Check it
Check the gearbox exhaust pipe.
It has been checked; the pipes are not blocked at the site.
Pour some oil out to see if there is a lot of foam in it, any signs of emulsification?
New oil has just been added, and it has been tested; its foam properties, emulsification characteristics, and moisture content are all within acceptable limits.
Has the lubrication pipe of the reducer been led outside the cooling tower? If so, the oil level might be an incorrect reading