KSB Etachrom L, Installation & Operating Manual

Page: 52 / 70

7 Servicing/Maintenance
52 of 70
Etachrom L
1212.8/19-EN
6. Fit the rotating assembly of the mechanical seal (primary ring) on shaft sleeve
523
7)
or shaft 210.
7.5.4 Fitting the impeller
ü
The notes and steps stated in (
ð
Section 7.5.1, Page 49) to
( ð Section 7.5.3, Page 51) have been observed/carried out.
ü
The assembled bearing bracket as well as the individual parts have been placed
in a clean and level assembly area.
ü
All dismantled 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ü Any damaged or worn parts have been replaced by original spare parts.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. Insert key 940.01. Slip impeller 230 onto shaft 210.
2. Fasten impeller nut 920.95 and safety device 930.95. Observe the tightening
torques.
7.5.5 Installing 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 7.5.1, Page 49) to
( ð Section 7.5.4, Page 52) have been observed/carried out.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
ü
For back pull-out units without coupling, fit the coupling in accordance with the
manufacturer's instructions.
1. Prevent the back pull-out unit
8)
from tipping over, e.g. by suspending or
supporting it. Then fit new or undamaged O-ring 412.35 on discharge cover 163.
2. Tighten nut 920.01 and hexagon head bolt 901.99 at the volute casing.
3. Bolt support foot 183 to the baseplate.
7.5.6 Mounting the motor
NOTE
Steps 1 and 2 do not apply to versions with spacer-type coupling.
1. Shift the motor to connect it to the pump via the coupling.
2. Fasten the motor to the baseplate.
3. Align pump and motor. ( ð Section 5.6, Page 30)
4. Connect the motor to the power supply (refer to manufacturer's product
literature).
8 If any