38
0450
0030
0801
0250
0020
0171
0540 0081
0804
0130
0090
0082
0080
0082
A.0500.251 – IM-TL/13.00 EN (08/2009)
4.6 Disassembly
See also section 4.2 General instructions, section 4.3 O-rings and lip seals,
4.4 Shut down and 4.5 Tightening torque for nuts and screws.
4.6.1 Pump cover and rotor removal
Do not forget that liquid may still flow out of
the rotor case when removing the pump cover.
1. Remove the cap nuts (0450).
2. Grooves are provided along the circumference to permit removing pump cover
(0030) with aid of e.g. a screwdriver. Check the O-ring (0801).
3. Lock rotors (0020) against rotation by putting a block of soft material between them.
4. Unscrew retainer (0250) counter clockwise by using
the retainer tool.
5. Remove the rotor (0020).
Note! If lip seals are installed, the shaft sleeves
might come out together with the rotor. Take care
not to drop the shaft sleeves.
6. Make sure that the shims (0171) remain in place.
7. Remove the second rotor in the same way.
4.6.2 Disassembly of seals
Only if section 4.6.1 has been completed
It is possible to remove the rotor case
including seal assembly without
dismantling the seals first.
Retainer tool