KSB MK, Installation & Operating Manual

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7 Servicing/Maintenance
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MK
8. Slide the motor shaft into sleeve 520.
9. Bolt the motor to thrust and radial bearing 303.01 with hexagon head bolts
901.01.
10. Apply a thin coat of grease to the bearing positions on shaft 210.
11. Press ring 550.01 into the first support column 712.01 following thrust and
radial bearing 303.01.
12. Swiftly press bearing bushes 545 into the corresponding radial bearings 303.02
and 303.03 (if any).
CAUTION
Damage to the shaft assembly
Warping of the shaft!
▷ Support the shaft assembly if the shaft is long.
13. Carefully slide first support column 712.01 with fitted ring 550.01 on the shaft.
Secure it to radial bearing 303.01 with nut 920.01.
14. Depending on the installation depth, carefully fit further radial bearings 303.02
and 303.03 (if any) with pressed-in bearing bush 545 and support columns
712.02/.03 and secure them with hexagon head bolts 901.03 and nuts 920.03.
15. Slide impeller 230 onto the shaft stub and secure it with grooved pin 561.02.
Make sure it is firmly seated.
16. Apply a thin layer of grease to the impeller face 230 at the sealing clearance.
17. Fit cover plate 68-3 and sightly tighten nuts 920.12.
18. Fit volute casing 102 with casing wear ring 502.
19. Tighten nuts 920.02.
20. Run pipe 710.01 through cover plate 68-3 with nut 920.40, disc 550.30 and
gasket 400.06 and screw it into the nozzle of casing 102.
21. Secure cover plate 68-3 by tightening nuts 920.12.
22. Secure the pipe above the plate with another nut 920.11 with disc 550.11 and
gasket 400.11.
N.B.: Make sure the pump is free from stresses and strains when tightening the
R2 hexagon nuts.
23. Fit screw plug 903.01 with joint ring 411.01 in radial bearing 303.02 and 303.03
(if any).
24. Install any lubricating lines.
25. Fit float switch control equipment, if any.
NOTE
For lubrication by the fluid handled, screw the pipe union tightly into the support
column and connect it via a pipe with the weld-on threaded union of the discharge
pipe.
7.5.2.3 Re-assembling the pump set (MKY)
NOTE
If the shaft is worn at the bearing positions, it may be turned upside down and
installed again for continued use. At first re-installation in reversed position, the
running faces on the shaft are as new. The bearing bushes have to be replaced at
the same time.
1. Press coupling sleeve 520 into radial ball bearing 321 in cold condition.
2. Pull shaft 210 into sleeve 520 and secure it with grooved pin 561.01. Make sure
it is firmly seated.