KSB Magnochem-Bloc, Installation & Operating Manual

Page: 58 / 96

7 Servicing/Maintenance
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Magnochem-Bloc
To ensure reliable operation, the plain bearing components (taper lock ring 515.21,
bearing sleeve 529.21, thrust bearing 314, bearing sleeve 529.22, taper lock ring
515.22) are positioned and held in place as a clamped assembly. The clamped
assembly may remain intact or break up into individual components during
dismantling.
▪ If the clamped assembly remains intact, the components can be dismantled
together.
▪ If the clamped assembly breaks up into individual components, the components
must be removed individually.
ü The notes and steps stated in ( ð Section 7.4.1, Page 51) to
(
ð
Section 7.4.6, Page 57) have been observed/carried out.
ü The parts are kept in a clean and level assembly area.
CAUTION
Load on taper lock ring due to the weight of the assembly
Damage to the plain bearing assembly!
▷ Never set the assembly down on taper lock ring 515.22.
▷
Turn over casing cover 161 with bearing ring carrier 391 and set down on casing
cover 161.
1. Lift casing cover 161 with bearing ring carrier 391, taper lock ring 515.21,
bearing sleeve 529.21, thrust bearing 314, bearing sleeve 529.22 and taper lock
ring 515.22 from shaft 210.03.
NOTE
When turning casing cover 161 over, taper lock ring 515.21 and bearing sleeve
529.21 may become loose or may come off. For this reason, check whether taper
lock ring 515.21 and bearing sleeve 529.12 can be undone and removed before
setting down casing cover 161.
2. Turn over casing cover 161 with bearing ring carrier 391.
3. Place casing cover 161 with bearing ring carrier 391 in a clean and level assembly
area. The bearing ring carrier 391 must face upwards.
4. Undo hexagon socket head cap screws 914.07.
5. Remove bearing ring carrier 391. Use forcing screws if required. Remove taper
lock ring 515.22 (if present) with bearing ring carrier 391.
6. Take bearing sleeve 529.22 and thrust bearing 314 off the casing cover. If
necessary, remove thrust bearing 314 with bearing sleeve 529.21.
7. If required (e.g. during replacement), pull bearing bush 545.21 out of casing
cover 161 from the pump end and remove locking element 500.61.
NOTE
Only remove bearing bushes 545.21 and 545.22 if signs of excessive wear or damage
are detected.
8. If required (e.g. during replacement), pull bearing bush 545.22 out of bearing
ring carrier 391 from the motor end and remove locking element 500.62.
9. Take disc springs 950.23 off shaft 210.03.
Only on models with bearing brackets CS50 and CS60 and nominal magnetic
coupling diameters 85 and 123:
remove disc springs 950.23 and intermediate
ring 509.02 from shaft 210.03.
10. Pull inner rotor 818.01 off shaft 210.03.
11. Remove keys 940.31 from shaft 210.03.