A: 

(1). Bearing cooling water is interrupted.

(2). The bearing oil quality is degraded, the oil itself is not clean or the oil is degraded during operation, such as the increase of water in the oil will cause the acidity of the oil to increase, which will reduce the lubrication effect of the oil, cause the bearing bush to be corroded, and cause the bearing temperature to rise.

2. Phenomenon

(1). There is an alarm bell.

(2). The mechanical failure of the water wheel on the machine side plate lights up, the temperature of the meter indicating the bearing temperature rises, and the signal relay operates.

(3). The black needle of the thermometer plate (expansion thermometer) overlaps or exceeds the yellow needle.

(4). Send out the fault signal that the bearing temperature rises.