KSB CTN - Reassembly of Hydraulic System

7 Servicing/Maintenance
51 of 76
CTN / CTN-H
6. Insert bearing housing 350.04 with bearing bush 545.03, grooved pin 561.22 and
O-Ring 412.10 (if applicable) into the recess in the pipe assembly (not for CTN-
H).
7. If pipe assembly 71-9.02 is fitted, repeat steps 1 to 6.
8. If pipe assembly 71-9.03 is fitted, repeat steps 1 to 6.
CAUTION
Bending of the shaft
Damage to the shaft!
▷ Support the shaft assembly if the shaft is long.
9. CTN-H: after assembling the pump, fit the pipes 710.23/.24/.25/.26 with pipe
unions 731.18/.37/.38/.39/.40/.41.
7.5.4 Reassembly of hydraulic system
Single-stage pumps ü The notes and steps stated in (ðSection7.5.1,Page48) bis
(ðSection7.5.3,Page50) have been observed/carried out.
ü All disassembled 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ü Any damaged or worn parts have been replaced by original spare parts.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. Fit volute casing 102 with bearing bush 545.01, casing wear ring 502.02 (if
applicable) and gasket 400.16 to the pipe assembly with bolts 901.29 and nuts
920.29.
2. Insert key 940.01 into the shaft.
Fit impeller 230.01 with a jig.
3. Insert lockwasher 931.02.
4. Tighten cap nut 920.22.
Bend over lockwasher 931.02.
5. Fasten suction cover 162, casing wear ring 502.01 (if applicable) with joint ring
411.58 to the volute casing 102 using bolts 901.28 and nuts 920.28 (and
additional studs 902.28 and hexagon nuts 920.28, if applicable).
Two-stage pumps ü The notes and steps stated in (ðSection7.5.1,Page48) bis
(ðSection7.5.3,Page50) have been observed/carried out.
ü All disassembled 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ü Any damaged or worn parts have been replaced by original spare parts.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. Fit volute casing 102 with bearing bush 545.01, casing wear ring 502.02 (if
applicable) and gasket 400.16 to the pipe assembly with bolts 901.29 and nuts
920.29.
2. Insert key 940.01 into the shaft.
Fit impeller 230.01 with a jig.
3. Slip spacer sleeve 525 (or bearing sleeve 529.02, if applicable) onto the shaft.
4. Fit stage casing 108, casing wear rings 502.03/.04, bearing bush 545.02 (if
applicable) and joint ring 411.57 using bolts 901.28 and nuts 920.28 (and
additional studs 902.28 and hexagon nuts 920.28, if applicable).
5. Insert key 940.03 into the shaft.
6. Fit impeller 230.02 with a jig.
Insert lockwasher 931.02.
7. Tighten cap nut 920.22.
Bend over lockwasher 931.02.
8. Fasten suction cover 162, casing wear ring 502.01 (if applicable) with joint ring
411.58 to the stage casing 108 using bolts and nuts 901.27/920.27 (and
additional studs 902.27 and hexagon nuts 920.27, if applicable).