ITT Goulds Pumps XHD, Installation, Operation And Maintenance Manual

Page: 99 / 160

Maintenance
XHD Installation, Operation, and Maintenance Manual 97
7. Loosen the knock off ring bolts and disassemble the knockoff ring halves(149) from the
shaft.
8. Turn the shaft (122) counterclockwise with a strap wrench or shaft wrench to disengage the
shaft threads from the impeller. This will cause the bearing frame to move rearward on the
pedestal until the shaft disengages from the impeller (101) which is held captive in the
casing by the adjustable seal ring and casing volute liner. NOTE: This should take 4 to 5
complete shaft turns.
9. Slide the bearing frame backwards away from the liquid end until the shaft is completely
free of the liquid end.
10. Insert hoist hook through the bearing cartridge housing (228) lifting lug.
11. Remove the bearing frame adjustment plate bolts (352G) and threaded adjustment rod
nuts on the outer face of the adjustment plate (234F) ears.
12. Remove and set aside the bearing frame adjustment plates (234F).
13. Tension the hoist fully to lift and move the bearing frame to designated work area.
Remove the expeller (optional feature)
1. Remove the impeller hub o-ring (412U).
2. Remove the expeller (263) from the shaft (122).
Figure 81: Removal of expeller