54
6. Screw impeller nut 922 to shaft 210. ( Section 7.6.2 Page 55)
7.5.5 Fitting the back pull-out unit
The notes and steps stated in (
Section 7.5.1 Page 50) to (
Section 7.5.4 Page 53) have been
observed/carried out.
Any damaged or worn parts have been replaced by original spare parts.
The sealing surfaces have been cleaned.
For back pull-out units without coupling, fit the coupling in accordance with the
manufacturer’s instructions.
1. If required, suspend or support the back pull-out unit to prevent it from tipping over. Then
push it into volute casing 102 with a new gasket 400.
2. Tighten nut 920.01 at the volute casing.
3. Fasten support foot 183 to the baseplate with a foundation bolt.
7.5.6 Mounting the motor
1. Shift the motor to connect it to the pump via the coupling.
2. Fasten the motor to the baseplate.
3. Align the pump. (
Section 5.7 Page 26)
4. Connect the motor to the power supply (refer to manufacturer’s product literature).
7.6 Tightening torques
7.6.1 Tightening torques
Use torque wrench to tighten the screwed connections (920.01/902.02) between the volute
casing and the bearing bracket lantern.
WAR NING
Back pull-out unit tipping over
Risk of squashing hands and feet!
Suspend or support the bearing bracket at the pump end.
NOTE
Steps 1 and 2 do not apply to versions with spacer-type coupling.
7 Servicing/Maintenance
