Always reassemble the pump in accordance with the corresponding general assembly
drawing and installation instructions.
▪ Never use O-rings that have been made by cutting an O-ring cord to size and
gluing the ends together.
▪ Replace all O-rings and V-rings and clean their seats on the shaft. Place all sealing
elements into their seats in the relevant components before assembling the
components.
▪ Remove the tension spring (2) of shaft seal ring 421.02.
Fig. 29: Removing the tension spring
1
Metal insert 2 Tension spring
3 Sealing lip 4 Elastomer component
▪ Observe the installation instructions regarding cleaning, lubricating and sealing
agents.
▪ Remove any residues of liquid sealants prior to assembly.
▪ Coat the locating surfaces of the individual components and screwed connections
with graphite or similar before reassembly.
For reassembly, tighten all screws and bolts as specified in this manual.
7.5.2 Installing the rotor
✓ Suitably dimensioned lifting equipment is available.
✓ The pump shaft has been placed down in a horizontal position on a level and
clean assembly surface and secured against rolling off.
✓ The corresponding general assembly drawing and installation instructions are
available.
1. The locating surfaces, threads and sliding fits of pump shaft 211 have been
cleaned. Assembly paste has been applied in accordance with the installation
instructions.
2. Fit keys into the keyways of pump shaft 211.
3. Fit impeller 234. Check that the direction of rotation of the impeller is correct!
Fig. 30: Direction of rotation of the impeller
Sequence
O-rings/V-rings
Tension spring
Assembly adhesives
Tightening torques
7 Servicing/Maintenance
Omega / Omega V
61 of 94
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