FLYGT 3085 - Page 4

6.3.1 Inspection.................................................................................................................... 43
6.3.2 Major overhaul............................................................................................................ 44
6.3.3 Service in case of alarm..............................................................................................44
6.4 Replace the impeller......................................................................................................... 44
6.4.1 Replace the C-, D-, or L-impeller.............................................................................. 45
6.4.2 Replace the F-impeller...............................................................................................49
6.4.3 Replace the M-impeller..............................................................................................54
6.4.4 Replacing the Adaptive N-impeller..........................................................................57
7 Troubleshooting....................................................................................................................... 63
7.1 The pump does not start...................................................................................................63
7.2 The pump does not stop when a level sensor is used..................................................64
7.3 The pump starts-stops-starts in rapid sequence............................................................64
7.4 The pump runs but the motor protection trips..............................................................65
7.5 The pump delivers too little or no water.........................................................................66
8 Technical Reference.................................................................................................................67
8.1 Motor data.......................................................................................................................... 67
Table of Contents
2 Flygt 3085 Installation, Operation, and Maintenance Manual