Dismantling The Rotating Shaft Seal Part - Grundfos BMS Series Service Instructions Manual

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5.5 Dismantling the rotating shaft seal part

1. Loosen and remove the shaft seal (left-hand thread). For
service tool, see section 4. Service tools.
Fig. 18 Loosening the shaft seal
2. Remove the shaft seal and O-ring.
Fig. 19 Shaft seal and O-ring
Always replace the O-rings. Use soapy water for
Note
lubrication.
3. Mount a new O-ring and shaft seal.
4. Tighten the shaft seal.
Fig. 20 Tightening the shaft seal
8
5. Remove the support bearing and replace it.
Fig. 21 Support bearing
6. Insert the inner and outer O-rings.
O-rings
Fig. 22 Replacing the O-ring
Always replace the O-rings. Use soapy water for
Note
lubrication.
7. Insert the complete thrust bearing.
Fig. 23 Mounting the thrust bearing