KSB KWP User Manual

7. Apply a few spots of a suitable lubricant (e.g. Molykote) to the contact faces
of lockwasher 931.01 and locknut 920.21.
8.
For bearing brackets P08sx/P10ax/P12sx: fit disc 507.12.
9. Fit lockwasher 931.01.
10. Tighten locknut 920.21.
11. Bend back lockwasher 931.01.
12. Pull bearing carrier 382 onto angular contact ball bearing 320.02.
13. Remove support disc 550.23.
14. Insert circlips 932.01/932.03 into the bearing bracket/bearing carrier.
15. Fit the outer ring of angular contact ball bearing 322.01.
16. Carefully push pre-assembled shaft 210 with bearing carrier 382, O-ring 412.02
and lip seal 421.02 into bearing bracket 330 from the drive end until it will not
go any further.
Watch the position of the return bores for oil recirculation.
17. Tighten socket head cap screws 914.02 (for bearing brackets P08sx/P10ax/
P12sx: hexagon head bolt 901.95).
Tightening torque (⇨ Section 7.6.1 Page 64)
18. Insert grub screws 902.04.
19. For bearing brackets P08sx/P10ax/P12sx: fit V-ring 411.78 and hexagon forcing
screws 901.91.
Make sure the external surfaces of V-rings 411.77/.78 are flush with the
external surface of the bearing cover/bearing carrier.
20. Fit O-ring 412.36 and disc 507.11.
21. Fit pump-end bearing cover 360.01 with joint ring 400.01.
Take care not to damage lip seal 421.01.
For bearing brackets P08sx/P10ax/P12sx: fit V-ring 411.77 instead of lip seal.
22. Tighten socket head cap screws 914.01 at the pump end..
Tightening torque (⇨ Section 7.6.1 Page 64)
23. Fit bearing bracket lantern 344 with studs 902.04.
24. Tighten hexagon nuts 920.04 at the flange of bearing bracket 330.
25. Fit keys 940.02.
26. Pull the coupling hub onto the shaft end.
27. Secure the coupling hub with the set screw.
28. Fit thrower 507.01, if any.
7.5.4 Installing the shaft seal
7.5.4.1 Installing the mechanical seal
The following rules must be observed when installing the mechanical seal:
▪ For mounting the mechanical seal, proceed as shown in the seal installation
drawing.
▪ Work cleanly and accurately.
▪ Only remove the protective wrapping of the contact faces immediately before
assembly takes place.
▪ Prevent any damage to the sealing surfaces or O-rings.
▪ After inserting the seat ring, check that it is plane-parallel in relation to the
casing part.
▪ Make sure that the surface of the shaft protecting sleeve is absolutely clean and
smooth, and that the sleeve's mounting edge is chamfered.
7 Servicing/Maintenance
56 of 78
KWP

KSB KWP Specifications

General

Brand	KSB
Model	KWP
Category	Water Pump
Language	English