KSB Magnochem-Bloc, Installation & Operating Manual

Page: 62 / 96

7 Servicing/Maintenance
62 of 96
Magnochem-Bloc
5. Press bearing bush 545.22 into bearing ring carrier 391. Observe the position of
the groove in bearing bush 545.22. ( ð Section 9.3, Page 88)
Fig. 19: Checking the face run-out of the bearing bush relative to the bearing ring
carrier
6. Check the face run-out of bearing bush 545.22. Maximum permissible face run-
out: 0.02 mm.
CAUTION
Dirt particles between conical surfaces of bearing components
Damage to the plain bearings!
▷
Thoroughly clean the bearing components prior to reassembly.
CAUTION
Dry bearing surfaces during assembly
Dry running of the bearings at pump start-up!
▷ Before installing the bearings, wet the running surfaces of the bearings with a
suitable fluid (e.g. water or oil).
7. Wet the running surfaces of thrust bearing 314 with liquid.
8. Place thrust bearing 314 onto bearing bush 545.21.
NOTE
If the bearing ring carrier 391 cannot be fitted: check the alignment of thrust
bearing 314, correct by turning if necessary.
9. Slide bearing ring carrier 391 over thrust bearing 314 and place it onto casing
cover 161.
10. Tighten hexagon socket head cap screws 914.07 to the torques given in this
manual. (
ð
Section 7.6, Page 74)
11. Insert keys 940.31 into shaft 210.03.
12. Place shaft 210.03 down into the guard with the max. diameter shaft end facing
downwards. The thread on shaft 210.03 for nut 920.95 points upwards.
13. Slide inner rotor 818.01 onto shaft 210.03.
CAUTION
Incorrect installation of disc springs 950.23.
Plain bearing malfunction!
▷ Fit the disc springs such that they are pointing in the same direction.
▷
Insert the disc springs in such a way that the highest point of the disc spring
pack points towards the impeller.