KSB Etanorm-R, Installation & Operating Manual

Page: 54 / 78

7 Servicing/Maintenance
54 of 78
Etanorm-R
1222.8/13-EN
7.4.6 Removing the shaft seal
7.4.6.1 Removing the KSB cartridge seal
Removing the KSB cartridge seal (4ES)
59-13
509.95
902.03
920.05
900.97
500.97
904.97
412.56
471.01 411.15
Fig. 19: Removing the KSB cartridge seal (4ES)
ü The notes and steps stated in ( ð Section 7.4.1, Page 51) to
(
ð
Section 7.4.5, Page 53) have been observed/carried out.
ü The back pull-out unit is kept in a clean and level assembly area.
1. Undo screws 900.97 at seal cover 471.01. Push assembly fixture 59-13 inwards
into the groove of ring 500.97. Insert screws 900.97 into the second bore of the
assembly fixture and fasten the assembly fixture to seal cover 471.01 again.
2. Undo grub screws 904.97 in ring 500.97.
3. Undo nuts 920.05.
4. Remove the KSB cartridge seal from casing cover 161.
Removing the KSB cartridge seal (4EB)
ü The notes and steps stated in ( ð Section 7.4.1, Page 51) to
( ð Section 7.4.5, Page 53) have been observed/carried out.
ü
The back pull-out unit is kept in a clean and level assembly area.
ü The impeller has been removed.
1. Use two pry bars to prise out complete mechanical seal 433 (cartridge design) at
the circumferential groove (see Fig.: Prising out the mechanical seal using pry
bars
Fig. 20: Prising out the mechanical seal using pry bars
2. Remove and dispose of gasket 400.04.