KSB MegaCPK User Manual

7.4.4 Removing the back pull-out unit
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 48) to (⇨ Section 7.4.3 Page
49) have been observed/carried out.
✓ On pump sets without spacer-type coupling, the motor has been removed.
WARNING
Back pull-out unit tipping over
Risk of crushing hands and feet!
▷ Suspend or support the bearing bracket at the pump end.
1. If required, suspend or support bearing bracket 330 to prevent it from tipping
over.
2. Unbolt support foot 183 from the baseplate.
3. Only for heated version: Undo pipe union 731.01/.02.
4. Only for heated version: Remove by-pass pipe 710.02.
5. Undo hexagon nut 920.01 at the volute casing.
6. Pull the back pull-out unit out of the volute casing.
7. Remove and dispose of joint ring 411.10.
8. Place the back pull-out unit on a clean and level surface.
7.4.5 Removing the impeller
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 48) to (⇨ Section 7.4.4 Page
50) have been observed/carried out.
✓ The back pull-out unit is kept in a clean and level assembly area.
1. Undo impeller nut 922 (right-hand thread).
2. Remove impeller 230 with an impeller removal tool.
3. Place impeller 230 on a clean and level surface.
4. Remove keys 940.01 from shaft 210.
5. Remove and dispose of joint rings 411.31/411.32.
7.4.6 Removing the shaft seal
7.4.6.1 Removing the mechanical seal - cylindrical casing cover
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 48) to (⇨ Section 7.4.5 Page
50) have been observed/carried out.
✓ The back pull-out unit is kept in a clean and level assembly area.
1. Unscrew hexagon nuts 920.02 and slide back seal cover 471 (if fitted).
2. Undo hexagon head bolts 901.22, if any.
3. Remove casing cover 161 from bearing bracket 330.
4. Pull complete mechanical seal 433 with shaft protecting sleeve 524.01, seal
cover 471 and thrower 507.01 off shaft 210.
7.4.6.2 Removing the mechanical seal - conical casing cover
✓ The notes and steps stated in (⇨ Section 7.4.1 Page 48) to (⇨ Section 7.4.5 Page
50) have been observed/carried out.
✓ The back pull-out unit is kept in a clean and level assembly area.
1. Pull shaft sleeve 524.01 with the rotating assembly of mechanical seal 433 off
the shaft.
2. Undo hexagon head bolts 901.22, if any.
3. Dismantle casing cover 161 with the stationary ring of mechanical seal 433.
7 Servicing/Maintenance
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MegaCPK

KSB MegaCPK Specifications

General

Brand	KSB
Model	MegaCPK
Category	Water Pump
Language	English