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11866576 Installation, Operation and Maintenance Manual – Synchronous Motors – S Line – Brushless – Horizontal l 9

7.4.2 Re-impregnation ................................................................................................................................. 40

7.4.3 Insulation resistance ............................................................................................................................ 40

7.5 COOLING SYSTEM MAINTENANCE ............................................................................................... 40

7.6 RADIATOR MAINTENANCE ............................................................................................................ 40

7.7 VIBRATION ..................................................................................................................................... 40

7.8 SHAFT GROUNDING DEVICE ......................................................................................................... 40

7.9 EXCITER MAINTENANCE ................................................................................................................ 40

7.9.1 Exciter ................................................................................................................................................ 40

7.9.2 Insulation resistance ............................................................................................................................ 40

7.9.3 Diode test ........................................................................................................................................... 40

7.9.3.1 Diode Replacement ............................................................................................................. 41

7.9.4 Thyristor test ....................................................................................................................................... 41

7.9.4.1 Thyristor replacement .......................................................................................................... 41

7.10 BEARING MAINTENANCE .............................................................................................................. 42

7.10.1 Grease-lubricated rolling bearings ....................................................................................................... 42

7.10.1.1 Lubrication instructions ........................................................................................................ 42

7.10.1.2 Procedures for rolling bearing relubrication .......................................................................... 42

7.10.1.3 Rolling bearing relubrication with drawer device for grease removal ..................................... 42

7.10.1.4 Type and amount of grease ................................................................................................. 43

7.10.1.5 Grease compatibility ............................................................................................................ 43

7.10.1.6 Bearing disassembly ........................................................................................................... 43

7.10.1.7 Bearing assembly ................................................................................................................. 44

7.10.2 Oil-lubricated rolling bearing ................................................................................................................ 44

7.10.2.1 Lubrication instructions ........................................................................................................ 44

7.10.2.2 Oil type.......... ...................................................................................................................... 44

7.10.2.3 Oil change...... ..................................................................................................................... 44

7.10.2.4 Bearing operation ................................................................................................................. 45

7.10.2.5 Bearing disassembly ........................................................................................................... 45

7.10.2.6 Bearing assembly ................................................................................................................ 45

7.10.3 Sleeve bearings. ................................................................................................................................. 46

7.10.3.1 Bearing data.. ...................................................................................................................... 46

7.10.3.2 Bearing installation and operation ........................................................................................ 46

7.10.3.3 Cooling by water circulation ................................................................................................. 46

7.10.3.4 Oil change...... ..................................................................................................................... 46

7.10.3.5 Sealings........ ...................................................................................................................... 46

7.10.3.6 Sleeve bearing operation ..................................................................................................... 47

7.10.3.7 Sleeve bearing maintenance ................................................................................................ 47

7.10.4 Protection setting ................................................................................................................................ 47

7.10.5 Disassembly/assembly of the bearing temperature sensors ................................................................. 47

8 MOTOR DISASSEMBLY AND ASSEMBLY ........................................................... 48

8.1 DISASSEMBLY ............................................................................................................................... 48

8.2 ASSEMBLY ..................................................................................................................................... 48

8.3 TIGHTENING TORQUE ................................................................................................................... 48

8.4 AIR GAP MEASURMENT ................................................................................................................ 49

8.5 SPARE PARTS ................................................................................................................................ 49

9 MAINTENANCE PLAN ......................................................................................... 50

10 ABNORMALITIES, CAUSES AND SOLUTIONS ..................................................... 51

11 DECLARATION OF CONFORMITY ....................................................................... 53

12 ENVIRONMENTAL INFORMATION ....................................................................... 54

12.1 PACKAGE ....................................................................................................................................... 54

12.2 PRODUCT ....................................................................................................................................... 54

12.3 HAZARDOUS WASTE ..................................................................................................................... 54

13 WARRANTY TERM ............................................................................................. 55