Water-cooled type
Is the cooling water flow rate sufficient? Please check the flow indicator.
Clean the water-cooling jacket to ensure that it is not dirty or clogged. (Check by opening the flange at the lower part of the bearing)
Air-cooled type
Are there any abnormal conditions with the air-cooling fan?
Are the bearing heat dissipation fins dirty, or is any foreign material trapped in them?
Is the oil cooler working normally?
Check the temperature difference between the lubricant cooler inlet and outlet.
Are the oil pressure and oil volume appropriate?
Check the lubricant pressure gauge and lubricant flow indicator.
Rotating, but water does not come out. Discharge quantity is not enogh to specified capacity.
Over load (Overcurrent) occurs.
Excessive water leakage from stuffing box
Electric motor does not work well with noise.
Water comes out at first, but it doesn't come out soon.