![background image](http://html.mh-extra.com/html/goulds-pumps/xhd/xhd_installation-operation-and-maintenance-manual_2247661090.webp)
512B
512A
822
757A
562
356F
Figure 57: Removal of adjustable seal ring - metal lined
6.2.7.7 Impeller removal - Metal-Lined
Two people should work together to remove the impeller for safety purposes.
1.
Remove the gland assembly halves (107) by removing the gland adjusting bolts (353).
2.
Loosen the bearing frame adjustment plate bolts (352G) and nuts (427D) but DO NOT remove
hardware or adjustment plates (234F). Keep hardware finger-tight to keep the bearing frame con-
strained to the pedestal while allowing it to slide along the pedestal rails.
3.
Slide the bearing housing and shaft assembly forward towards the suction side of the pump to allow
better access to the impeller (101).
4.
Remove the two-piece knock-off ring (149).
5.
Support the impeller (101) using a Goulds-provided impeller hook attached to the hoist. An over-
head hoist chain or sling can also be routed through a vane passage to support the impeller.
6.
With one person holding the impeller (101) in place, the other person rotates the shaft (122) coun-
terclockwise to unscrew the impeller. This step should take 4 to 5 complete shaft turns.
7.
Guide the impeller (101) completely free of the shaft threads and casing volute liner (561).
Figure 58: Impeller removal - metal lined
6.2.7.8 Stuffing box removal
Pump Model
Next step to follow
XHD
•
The stuffing box is split and can be disassembled prior to casing volute liner removal. Con-
tinue with the Remove the split stuffing box step below.
XHD Value Op-
tion
•
The stuffing box is integral to the seal cover. Skip to the Remove the seal cover step.
6.2 Disassembly
88
XHD Installation, Operation, and Maintenance Manual
Summary of Contents for XHD
Page 1: ...Installation Operation and Maintenance Manual XHD ...
Page 2: ......