Dismantling The Thrust Bearing And Shaft Seal - Grundfos BMS Series Service Instructions Manual

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7. Pull back the thrust bearing and shaft from the bearing
housing.
Shaft bearing with shaft
Fig. 7
8. Remove the two O-rings.
Note: Always replace the O-rings and use soapy water for
lubrication.
Removing O-rings
Fig. 8

5.3 Dismantling the thrust bearing and shaft seal

1. Remove the thrust bearing shaft.
Removing the shaft
Fig. 9
6
2. Remove the four pins.
Fig. 10 Removing the pins
3. Pull out the thrust bearing and support.
Note: Inspect the up-thrust bearing surfaces, stationary and
rotary. Both must be free of scratches, cracks and any visible
wear.
Fig. 11 Removing the thrust bearing and support
4. Pull out the shaft seal.
Fig. 12 Removing the shaft seal