Check the impeller rotation.............................................................................................................27
Operation..............................................................................................................................................28
Precautions.........................................................................................................................................28
Distance to wet areas........................................................................................................................28
Noise level..........................................................................................................................................28
Start the pump...................................................................................................................................28
Clean the pump.................................................................................................................................29
Maintenance.........................................................................................................................................30
Precautions.........................................................................................................................................30
Maintenance guidelines...................................................................................................................30
Torque values....................................................................................................................................30
Service................................................................................................................................................31
Inspection........................................................................................................................................31
Major overhaul................................................................................................................................33
Change the oil...................................................................................................................................33
Empty the oil...................................................................................................................................33
Fill with oil........................................................................................................................................34
Replace the impeller.........................................................................................................................34
Remove the impeller......................................................................................................................34
Install the impeller..........................................................................................................................36
Troubleshooting...................................................................................................................................38
Introduction.......................................................................................................................................38
The pump does not start..................................................................................................................38
The pump does not stop when a level sensor is used.................................................................39
The pump starts-stops-starts in rapid sequence...........................................................................39
The pump runs but the motor protection trips.............................................................................40
The pump delivers too little or no water........................................................................................40
Technical Reference............................................................................................................................42
Application limits...............................................................................................................................42
Motor data..........................................................................................................................................42
Specific motor data...........................................................................................................................42
Dimensions and weights..................................................................................................................46
Performance curves..........................................................................................................................50
Table of Contents
2 2125 Installation, Operation, and Maintenance Manual
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