ITT Goulds Pumps XHD, Installation, Operation And Maintenance Manual

Page: 84 / 160

Maintenance
XHD Installation, Operation, and Maintenance Manual 82
5. Support the impeller (101) using a Goulds-provided impeller hook attached to the hoist. An
overhead 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)
counterclockwise 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 57: Impeller removal - metal lined
Stuffing box removal
Pump Model Next step to follow
XHD
• The stuffing box is split and can be disassem-
bled prior to casing volute liner removal. Con-
tinue with the Remove the split stuffing box
step below.
XHD Value Option
• The stuffing box is integral to the seal cover.
Skip to the Remove the seal cover step.
Remove the split stuffing box XHD
NOTICE:
This section applies only to units equipped with a split stuffing box. If your unit is not equipped
with a split stuffing box, the seal cover /chamber will be removed at a later step.
1. Remove the shoulder bolts (328) that hold the two halves together.
2. Remove the hex head bolts (569L) that attach the split stuffing box (159) to the seal cover
(184).
3. Remove the split stuffing box halves (159).
4. Remove the split stuffing box gaskets (367B).