KSB Vitacast, Installation & Operating Manual

Page: 63 / 80

7 Servicing/Maintenance
63 of 80
Vitacast / Vitacast Bloc
101
230
161
210
922
412.3
940.1
551 433.1
Fig. 29: Fitting the impeller for seal types Q, T and Y
ü The rolling element bearings and shaft seal have been properly installed.
1. Insert suitable spacer discs 551 to adjust the impeller clearance as specified.
( ð Section 7.5.5, Page 63)
ð Seal type H is designed with the spacer discs inside the rotating assembly of
mechanical seal 433.1. To be able to fit spacer discs, remove the rotating
assembly of mechanical seal 433.1. Fit spacer discs 551. Re-install the rotating
assembly of mechanical seal 433.1. All other seals are designed with the
spacer discs between the impeller and the shaft shoulder.
ð Check the clearance. Adjust it if required.
2. Fit impeller 230. Secure it with impeller nut 922.
3. Check the clearance. Adjust it if required.
7.5.5 Adjusting the clearances
D
B
C
A
Fig. 30: Pump clearances
1. Adjust the clearance by fitting spacer discs 551. Please note that the location of
spacer discs varies. (
ð
Section 7.5.4, Page 62)
Table 23: Clearances [mm]
Pump size Motor size (IEC) Distances (with spacer disc)
71 80 90 100 112 132 160 180 200 225 250 A B C D
032-025-145
✘ ✘ ✘ ✘
- - - - - - - 0,3 0,3 34,8 35,2
032-025-175
✘ ✘ ✘ ✘
- - - - - - - 0,3 0,3 34,3 34,6
040-032-110 - ✘ ✘ - - - - - - - - 0,3 0,4 29,8 30,2
040-032-145 - ✘ ✘ ✘ ✘ ✘ ✘ - - - - 0,3 0,3 37,8 38,1