KSB Magnochem-Bloc, Installation & Operating Manual

Page: 57 / 96

7 Servicing/Maintenance
57 of 96
Magnochem-Bloc
4. For models with intermediate piece only: undo screws 914.28.
5. Carefully remove flange 723.
6. Carefully take off ceramic containment shroud 82-15.
7. For models with intermediate piece only: cleanly remove joint ring 411.09 from
intermediate piece 132.01.
8. Cleanly remove joint ring 411.08 from casing cover 161.
9. For models with auxiliary impeller only: undo screws 914.26 at inner rotor
818.01 and remove auxiliary impeller 23-2.02.
WARNING
Insufficient stability
Risk of crushing hands and feet!
▷ During dismantling secure the inner rotor assembly (impeller, casing cover,
bearing ring carrier, plain bearings, inner rotor) against tilting or tipping over.
10. Place inner rotor assembly (impeller, casing cover, bearing ring carrier, plain
bearings, inner rotor) on the face of inner rotor 818.01 and into the guard.
NOTE
The magnetic inner rotor must be protected from damage and above all from
contamination (metal particles). Use a non-magnetic guard made of wood or plastic
for this purpose (see table: manufacturing dimensions of guard).
7.4.6 Removing the impeller
ü The notes and steps stated in ( ð Section 7.4.1, Page 51) to
( ð Section 7.4.5, Page 55) have been observed/carried out.
ü
The parts are kept in a clean and level assembly area.
1. Undo hexagon nut 920.95 and take disc 550.87 off shaft 210.03.
2. Pull impeller 230 off shaft 210.03.
3. Remove key 940.01.
7.4.7 Dismantling the plain bearings
CAUTION
Uncontrolled loosening of the clamped plain bearing assembly
Damage to the bearing sleeves!
▷
Check during the individual dismantling steps whether the components of the
clamped plain bearing assembly (taper lock ring 515.21, bearing sleeve 529.21,
bearing sleeve 529.22, taper lock ring 515.22) come off individually; in this case,
remove them individually.
▷ When casing cover 161 is lifted and transported, taper lock ring 515.22 and
bearing sleeve 529.22 may come off. Check whether taper lock ring 515.22 and
bearing sleeve 529.22 can be undone and removed before transportation.