Grundfos SEG AUTOAdapt Service Instructions Manual page 14

6. Fit the oil chamber (155) with bearing (153) on the rotor/shaft
(172). Fit the punch (F) on the inner ring and tighten gently.
See fig. 13.
Fig. 13 Fitting the oil chamber on the rotor/shaft
Pos. Description
1 Punch
7. Turn the assembly horizontally in the vice.
8. Press the bearing home on the journal.
Upper bearings
1. Fit the corrugated spring (158) on the stator housing (55).
2. Fit the upper bearing (154) on the rotor/shaft (172) by
pressing on the inner ring.
3. Make sure that the O-ring (159) is fitted in the groove of the
stator housing (55).
4. Fit the corrugated spring (158) on the upper bearing (154).
5. Lubricate the groove for the O-rings (37a).
6. Fit and lubricate the O-rings (37a).
7. Make sure that the spring pins (6a) are fitted on the stator
housing (55).
8. Fit the rotor assembly to the stator housing (55). The pin on
the stator housing (55) must engage with the hole in the oil
chamber (155).
9. Fit the screws (188a) to attach the oil chamber (155) to the
stator housing (55). See section
11.2.2 Fitting the shaft seal
0.9 to 1.5 kW
1. Check and clean the oil chamber (155).
2. Lubricate the groove for the O-rings (107).
3. Fit and lubricate the two O-rings (107) on the shaft seal.
4. Make sure that the O-ring (102) is fitted inside the bush (103).
5. Cover the shaft end and lubricate the shaft.
6. Fit the bush (103) in the seal ring (104) of the shaft seal (105).
7. Fit a new shaft seal (105) using the mounting bush included in
the shaft seal kit. See fig. 14.
Make sure that the shaft seal parts are concentric.
Wrong orientation breaks the seal parts when they
are pressed home.
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8. Torques and lubricants.
2
Fig. 14 Shaft seal assembly, 0.9 - 1.5 kW
Pos. Description
Lubricate with soapy water only.
1
Do not use oil.
No soap or oil between the SiC ring and the rubber
2
seal.
8. Remove the screw (188a) from the shaft end.
9. Fit two screws (188a) in the shaft seal carrier (58). See
section
8. Torques and lubricants.
10. Fit the key (9a) on the shaft (172) and lubricate the surface of
the key.
2.6 to 4 kW
1. Lubricate the shaft surface on the point where the seal is
fitted.
2. Fit the locking washer (153a).
3. Fit the shaft seal (105a) to the shaft. Make sure that the pin of
the shaft seal engages with the shaft groove. See fig. 15.
Fig. 15 Fitting the shaft seal, 2.6 - 4 kW
Make sure that the shaft seal parts are concentric.
Wrong orientation breaks the seal parts when they
are pressed home.
4. Lubricate the groove for the O-ring (107) on the shaft seal
carrier (58).
5. Fit and lubricate the O-ring (107).
6. Fit the shaft seal carrier (58) with screws (188a). See section
8. Torques and lubricants.
7. Fit the retaining ring (112a).
8. Fit the key (9a).
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