It is good practice to monitor the conditions and performance of the Single Phase Self-Priming Monobloc. Diagnosis
may be carried out by checking the following:
Checking the current drawn by the pump at the duty flow rate.
Both these data should be compared to corresponding data recorded when the unit was
initially installed.
Any increase in motor current at duty flow rate indicates a possible overload condition,
possibly due to rotating impeller rubbing against the stationary pump casing.
Measure the insulation resistance of the winding to check the condition of the motor.
Check for leakage from the Mechanical Seal location.
Check the capacitance of the capacitor.
OMMM001A
26
2020.01
