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Table of Contents

Introduction and Safety...................................................................................................................................................3

Introduction.......................................................................................................................................................................3

Transportation and Storage..........................................................................................................................................3

Inspect the delivery........................................................................................................................................................3

Product warranty............................................................................................................................................................3

Safety...................................................................................................................................................................................4

Safety message levels.....................................................................................................................................................4

User safety.......................................................................................................................................................................5

Ex-approved products...................................................................................................................................................6

Environmental safety.....................................................................................................................................................7

Product Description..........................................................................................................................................................8

Products included..............................................................................................................................................................8

The data plate.....................................................................................................................................................................9

Approvals............................................................................................................................................................................9

Product denomination....................................................................................................................................................11

Installation.........................................................................................................................................................................12

General precautions........................................................................................................................................................12

Requirements...................................................................................................................................................................12

Cables................................................................................................................................................................................12

Earthing (Grounding).....................................................................................................................................................13

Connect the motor cable to the pump.........................................................................................................................13

Connect the motor cable to the starter and monitoring equipment.......................................................................14

Cable charts......................................................................................................................................................................15

Sensor-connection.......................................................................................................................................................20

Check the impeller rotation...........................................................................................................................................21

Maintenance......................................................................................................................................................................22

Precautions.......................................................................................................................................................................22

Maintenance guidelines..................................................................................................................................................22

Torque values...................................................................................................................................................................22

Change the oil..................................................................................................................................................................23

Empty the oil................................................................................................................................................................23

Fill with oil....................................................................................................................................................................24

Disassemble the pump...................................................................................................................................................25

Remove the motor cable and the stator housing....................................................................................................25

Remove the pump housing.........................................................................................................................................26

Remove the mechanical seal.......................................................................................................................................27

Remove the stator from the stator housing.............................................................................................................30

Assemble the pump........................................................................................................................................................31

Install the stator in the stator housing......................................................................................................................31

Install the mechanical seal..........................................................................................................................................32

Install the motor cable in the stator housing...........................................................................................................35

Replace wear parts and cutting parts........................................................................................................................37

Install the pump housing............................................................................................................................................41

Replace the impeller........................................................................................................................................................42

Replace the C- or D-impeller.....................................................................................................................................43

Replace the F-impeller.................................................................................................................................................46

Replace the M-impeller...............................................................................................................................................51

Replace the N-impeller................................................................................................................................................55

Requirements for Ex-approved products....................................................................................................................57

Table of Contents

Flygt 3102 Service and Repair Instructions 1