KSB Etaprime L, Installation & Operating Manual

Page: 54 / 76

7 Servicing/Maintenance
54 of 76
Etaprime L
Grease lubrication
5
b)
a)
1
2
3
4
Fig. 16:
Installing the radial ball bearing a) shaft units 25 and 35 b) shaft unit 17
1 Bearing bracket 2 Cover plate
3 Radial ball bearing 4 Shaft
5 Bearing housing
ü The individual parts have been placed 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Any damaged or worn parts have been replaced by original spare parts.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.
Press radial ball bearings 321.01 and 321.02 onto shaft 210.
2.
Push the pre-assembled shaft into bearing bracket 330 or bearing housing 350.
3.
Fit circlips 932.01 and 932.02.
4.
Fit bearing covers 360.01 and 360.02.
5.
Fit axial sealing rings 411.77 and 411.78.
6.
Insert key 940.02.
7.
Pull the coupling half onto the motor-end shaft stub.
8.
Secure the coupling hub with a grub screw.
7.5.3 Installing the mechanical seal
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 52)
to
(
ð
Section 7.5.2, Page 53)
have been observed/carried out.
ü
The bearing assembly as well as the individual parts have been placed 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ü Any damaged or worn parts have been replaced by original spare parts.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.
Clean shaft sleeve 523 (if any), and touch up any score marks or scratches with a
polishing cloth.
If score marks or scratches are still visible, fit new shaft sleeve 523.
2.
Slide shaft sleeve 523 (if any) onto shaft 210 with new gasket 400.75.
3.
Clean the mating ring location in casing cover 161.