KSB Etanorm-R, Installation & Operating Manual

Page: 60 / 78

7 Servicing/Maintenance
60 of 78
Etanorm-R
1222.8/13-EN
7.5.3.2 Installing a standardised mechanical seal
903.24
411.24
400.04 500.03 433
1
0
5
7
5
B
C
471.01
561.03 411.15 904 523
902.02
920.02
Fig. 25: Fitting the standardised mechanical seal
Table 22: Installation dimensions B and C:
Design NU KU
Size B C B C
150-500.1
200-260,
200-330,
200-400,
200-500
250-330,
250-400,
250-500
300-360,
300-400,
300-500
71 5.5 91 5.5
200-250
250-300
300-340
92.5 5.5 112.5 5.5
125-500/2 80.5 5.5 100.5 5.5
Installing the
mechanical seal
The following rules must be observed when installing the mechanical seal:
▪ Work cleanly and accurately.
▪ Only remove the protective wrapping of the contact faces immediately before
installation takes place.
▪ Prevent any damage to the sealing surfaces or O-rings.
ü The notes and steps stated in ( ð Section 7.5.1, Page 56) to
( ð Section 7.5.2, Page 57) ( ð Section 7.5.3, Page 58) have been observed/carried
out.
ü The bearing assembly as well as the individual parts are kept in a clean and level
assembly area.
ü All dismantled parts have been cleaned and checked for wear.
ü
Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
1. Slide thrower 507 (if any) onto shaft 210 from the pump end.
2. Clean the stationary ring location of the mechanical seal in casing cover 161 and
seal cover 471.01.