KSB CTN - Dismantling the Bearing Bush; Reassembling the Pump Set; General Information;Safety Regulations

7 Servicing/Maintenance
48 of 76
CTN / CTN-H
Bearing sleeve 529.01/03 fastened with parallel pin (for hard metal)
ü The notes and steps stated in (ðSection7.4.1,Page43) bis
(ðSection7.4.7,Page46) have been observed/carried out.
1. Carefully bore open parallel pins 561.18/.19 and remove.
If the bearing sleeve shows signs of wear and needs to be replaced, it can be
smashed and the parallel in can be removed.
7.4.9 Dismantling the bearing bush
In the volute casing
ü The notes and steps stated in (ðSection7.4.1,Page43) bis
(ðSection7.4.8,Page47) have been observed/carried out.
1. Undo hexagon nut 920.10 and grub screw 904.10.
Press out bearing bush 545.01.
In the stage casing (for two-stage pumps)
ü The notes and steps stated in (ðSection7.4.1,Page43) bis
(ðSection7.4.8,Page47) have been observed/carried out.
1. Press out bearing bush 545.02 from below.
In the intermediate bearing (for large installation depths, the shaft assembly is
supported by an intermediate bearing)
CTN ü The notes and steps stated in (ðSection7.4.1,Page43) bis
(ðSection7.4.8,Page47) have been observed/carried out.
1. Remove grub screw 904.12 and bearing bush 545.03.
CTN-H ü The notes and steps stated in (ðSection7.4.1,Page43) bis
(ðSection7.4.8,Page47) have been observed/carried out.
1. Use an appropriate jig to press bearing bush 545.03 out of pipe assembly
71-9.01.
Smash the bearing bush if it is made of carbon.
7.5 Reassembling the pump set
7.5.1 General information/Safety regulations
WARNING
Improper lifting/moving of heavy assemblies or components
Personal injury and damage to property!
▷ Use suitable transport devices, lifting equipment and lifting tackle to move
heavy assemblies or components.
CAUTION
Improper reassembly
Damage to the pump!
▷ Reassemble the pump (set) in accordance with the general rules of sound
engineering practice.
▷ Use original spare parts only.
Sequence Always reassemble the pump in accordance with the corresponding general assembly
drawing.
Sealing elements ▪ Gaskets
– Always use new gaskets, making sure that they have the same thickness as
the old ones.