Assembling Meachanical Seal; Assembling Impeller; Assembling Motor Unit - BADU Normblock Multi Originalbetriebsanleitung

8.5.2

Assembling meachanical seal

NOTICE
Observe the following points:
– Clean and careful working methods.
– Only remove protection against contact on sliding surfaces
directly before assembly.
– Use water as an assembly agent.
– Never use oil or grease as an assembly agent.
1. Clean the counter ring in the gland housing (161).
2. Insert the counter ring carefully. Beware of applying pressure
evenly.
3. Assemble the gland housing (161) on the drive lantern (341).
4. Assemble the rotating insert in the mechanical seal (433) on
the impeller hub.
8.5.3

Assembling impeller

1. Insert shaft key (940) into shaft key nut.
2. Push the impeller (230) onto the shaft (210).
3. Hold the pump shaft at the opening. See "Fig. 8" on page 40
4. Fasten the impeller nut (922), with the inserted O-ring
(412.4). Observe the torque! See point 8.6 on page 41
8.5.4

Assembling motor unit

1. If necessary hang or support the motor unit to protect it from
tipping over.
2. Attach a new O-ring (412) to the gland housing (161) if
necessary.
3. Push the motor unit into the volute casing (101).
4. Tighten the hexagon nut (920) on the volute casing.
5. Connect the hose to the vent line (701) (BADU Block Multi).
04/2019
Maintenance
EN 39