Dismantling, 2.6 - 4 Kw; Assembly, 2.6 - 4 Kw - Grundfos seg autoadapt Service Instruction

10.3 Dismantling, 2.6 - 4 kW

1. Remove key (pos. 9a) from the shaft.
2. Remove lock ring (pos. 112).
3. Remove the two bolts in seal ring retainer (pos. 58) and fit them in the extractor holes.
4. Remove seal ring retainer (pos. 58).
5. Insert an angle screwdriver behind the shaft seal and pull the shaft seal off the shaft.
6. Remove O-ring (pos. 102) from the shaft.
7. Remove spacer ring (pos. 153b).

10.4 Assembly, 2.6 - 4 kW.

1. Clean spacer ring (pos. 153b) and its contact surface on the bearing.
2. Fit the distance ring against the bearing.
3. Fit O-ring (pos. 102) in the groove of the shaft. See section
4. Fit the shaft seal. The "ears" of the seal must point towards the bearing. The projection of the shaft seal must
engage with the keyway in the shaft.
5. Fit O-ring (pos. 107) in seal ring retainer. See section
6. Fit seal ring retainer (pos. 58). Cross-tighten the retainer to ensure that the shaft seal is in the correct position.
7. Press back the shaft seal using a piece of pipe and fit lock ring (pos. 112a) on the shaft. Check that the lock
ring is fitted correctly in the groove.
8. Fit key and impeller (see section 8.2), grinder head (see section 7.2) and fill the oil chamber with oil (see
section 9.3).
9. Check that the grinder head rotates freely and noiselessly.
Fitting the shaft seal, 2.6 - 4 kW
Fig. 6
4.2 Lubricants.
4.2 Lubricants.
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