Figure 42: Lifting sling through bearing frame
4.
Remove and discard the casing gasket (351).
You will insert a new casing gasket during reassembly.
5.
Remove the jackscrews (418).
6.
Clean all gasket surfaces.
Clean surfaces prevent the casing gasket (351) from partially adhering to the casing (100) and cov-
er (184) due to binders and adhesives in the gasket material.
7.
Secure the back pull-out assembly to prevent movement during transport.
8.
Transport the back pull-out assembly to a clean work area for further disassembly.
6.4.5 Remove the coupling hub
1.
If the coupling hub overhangs the shaft, mark the shaft for relocating the coupling hub during reas-
sembly.
Coupling hubs are normally mounted flush with the end of the shaft.
2.
Remove the coupling hub using a spanning-type puller or puller holes provided in the hub.
Refer to the coupling manufacturer's instructions for assistance.
6.4.6 Remove the impeller
CAUTION:
Risk of physical injury from sharp edges. Wear heavy work gloves when handling impellers.
1.
Loosen the set screw (198A) at the end of the impeller nut (304).
2.
Loosen and remove the impeller nut (304).
The impeller nut has left-hand threads.
6.4 Disassembly
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