KSB ILN, Operating Manual

Page: 52 / 92

7 Servicing/Maintenance
52 of 92
ILN / ILNC / ILNR
5211.8/08-EN
7.4.5.2 Removing the motor
WARNING
Motor tipping over
Risk of crushing hands and feet!
▷ Suspend or support the motor to prevent it from tipping over.
ü The notes and steps stated in ( ð Section 7.4.1, Page 46) to
( ð Section 7.4.2, Page 47) and ( ð Section 7.4.5.1, Page 51) have been observed/
carried out.
1. Undo hexagon head bolts 901.1.
2. Remove washer 550.1.
3. Remove the motor.
7.4.5.3 Dismantling the coupling
ü The notes and steps stated in ( ð Section 7.4.1, Page 46) to
( ð Section 7.4.2, Page 47) and ( ð Section 7.4.5.1, Page 51) to
(
ð
Section 7.4.5.2, Page 52) have been observed/carried out.
1. Remove the coupling guard.
2. Remove grub screws on both coupling hubs.
3. Remove the coupling with a puller. Never loosen the coupling by tapping it with
a mallet as this can severely damage the bearings or mechanical seal.
7.4.5.4 Removing the back pull-out unit
WARNING
Back pull-out unit tilting
Risk of crushing hands and feet!
▷ Suspend or support the bearing bracket at the pump end.
ü The notes and steps stated in ( ð Section 7.4.1, Page 46) to
( ð Section 7.4.2, Page 47) and ( ð Section 7.4.5.1, Page 51) to
( ð Section 7.4.5.3, Page 52) have been observed/carried out.
1. If required, suspend or support the back pull-out unit to prevent it from tipping
over.
2. Undo and remove nuts 920.3.
3. Remove drive lantern 341. If it is difficult to remove, use hexagon head bolts
901.3.
4. Pull the back pull-out unit out of volute casing 102.
5. Place the back pull-out unit on a clean and level surface.
ð After the back pull-out unit has been removed, the casing wear ring is accessible.
7.4.5.5 Removing the impeller
ü The notes and steps stated in ( ð Section 7.4.1, Page 46) to
( ð Section 7.4.2, Page 47) and ( ð Section 7.4.5.1, Page 51) to
(
ð
Section 7.4.5.4, Page 52) have been observed/carried out.
ü The back pull-out unit has been placed in a clean and level assembly area.
1. Undo impeller nut 922.
2. Remove impeller 230.
3. Place impeller 230 on a clean and level surface.
ð After the impeller has been removed, casing wear ring 502.2 is accessible.