Service instructions
CR(N) 32, 45, 64 and 90
Model A
50/60 Hz
3~
96547183 0407
GB
1 / 20
1. Type identification........................................................................................................................... 2
1.1 Nameplate CR, CRN ...........................................................................................................................................2
1.2 Type key ..............................................................................................................................................................3
1.3 Codes used..........................................................................................................................................................3
2. Tightening torques and lubricants................................................................................................. 4
3. Service tools .................................................................................................................................... 5
3.1 Special tools ........................................................................................................................................................5
3.2 Standard tools......................................................................................................................................................6
3.3 Torque tools.........................................................................................................................................................6
4. Dismantling and assembly ............................................................................................................. 7
4.1 General information .............................................................................................................................................7
4.2 Replacement of motor .........................................................................................................................................8
4.3 Replacement of motor stool.................................................................................................................................9
4.4 Replacement of coupling .....................................................................................................................................9
4.5 Replacement of shaft seal .................................................................................................................................10
4.6 Replacement of basic unit .................................................................................................................................11
4.7 Replacement of chamber stack .........................................................................................................................12
4.8 Dismantling of chamber stack............................................................................................................................13
4.9 Assembly of chamber stack...............................................................................................................................15
5. Order of assembly for chambers and impellers ......................................................................... 17
5.1 CR(N) 32............................................................................................................................................................17
5.2 CR(N) 45............................................................................................................................................................18
5.3 CR(N) 64............................................................................................................................................................19
5.4 CR(N) 90............................................................................................................................................................20
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