Shaft Seal; Dismantling, 0.9 - 1.5 Kw; Assembly, 0.9 - 1.5 Kw - Grundfos seg autoadapt Service Instruction

10. Shaft seal

10.1 Dismantling, 0.9 - 1.5 kW

1. Drain the oil. See section
2. Remove the two bolts (pos. 188a) in seal ring retainer (pos. 58) and fit them into the extractor holes.
3. Remove the retainer by means of the two bolts. Cross-tighten the bolts to ensure an even pull.
4. Remove the rotating shaft seal part with two angle screwdrivers. Insert the screwdriver tips behind the shaft
seal.
Removing the shaft seal, 0.9 - 1.5 kW
Fig. 4
5. Check the shaft where the secondary seal touches the shaft. If there signs of wear, replace the shaft.
6. Carefully loosen bush (pos. 103) from the bearing using two screwdrivers with straight slot and pull it off the
shaft using two angle screwdrivers.

10.2 Assembly, 0.9 - 1.5 kW

1. Check and clean the oil chamber.
2. Fit tool (pos. C) on the shaft.
3. Check O-ring (pos. 102) in bush (pos. 103).
4. Lubricate the shaft end and journal. See section
5. Fit bush (pos. 103) and press it home with a piece of pipe.
6. Lubricate O-ring (pos. 107) of the shaft seal. See section
7. Fit shaft seal (pos. 105a) with tool (pos. C) from the shaft seal kit.
Fitting the shaft seal
Fig. 5
8. Tighten the two bolts (pos. 188a) in seal ring retainer (pos. 58). See section
9. 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).
10. Check that the grinder head rotates freely and noiselessly.
9.2 Draining of oil.
4.2
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Lubricants.
4.2 Lubricants.
4.1 Tightening torques.