Remove the impeller and the wear protections ........................................................................36
Install the impeller and the wear protections.............................................................................36
Adjust the lower wear protection.................................................................................................37
Service the pump..............................................................................................................................37
Intermediate service.......................................................................................................................37
Major service...................................................................................................................................38
Service in case of alarm.................................................................................................................39
Troubleshooting...................................................................................................................................40
Introduction.......................................................................................................................................40
The pump does not start..................................................................................................................40
The pump does not stop when a level sensor is used.................................................................41
The pump starts-stops-starts in rapid sequence...........................................................................41
The pump runs but the motor protection trips.............................................................................42
The pump delivers too little or no water........................................................................................42
Technical reference.............................................................................................................................44
Application limits...............................................................................................................................44
Motor data..........................................................................................................................................44
Table of Contents
2 Flygt 3201 Installation, Operation, and Maintenance Manual
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