Goulds Pumps XHD - IOM - Manual (Page 101)

Maintenance
5. Lift the liner into position and insert into the gland half casing (100D) using the installed
retention studs (353K) as a guide.
6. Secure the casing volute liner (561) to the gland half casing (100D) by installing and fully
tightening the volute liner retention hex nuts (355C).
Install the impeller
Two (2) people should work together to install the impeller for safety purposes.
1. Loosen the adjustment plate bolts (352G) and nuts (427D) but DO NOT remove bolts or
adjustment plates (234F). Bolts should remain finger-tightened to keep rotating assembly
constrained to the pedestal.
2. Slide the power end forward towards the suction side of the pump to allow better access to
the shaft (122) impeller threads.
3. Apply anti-seize compound to the shaft (122) impeller threads.
4. Lift the impeller (101) using a Goulds-provided impeller hook or a chain/sling threaded
through a vane passage attached to the hoist.
5. Guide the impeller (101) into position to engage with the shaft impeller threads.
6. With one person holding the impeller steady, the other should turn the shaft (122) clockwise
to screw the shaft into the impeller. Begin this operation by hand and finish with an
adjustable spanner wrench.
7. After the shaft (122) has been tightly screwed into the impeller (101), the bearing frame can
be slid backwards toward the drive end until the impeller sits completely recessed in the
casing volute liner (561).
8. Re-secure the bearing frame adjustment plates (234F) by tightening the hold down bolts
(352G) and nuts (427D).
XHD Installation, Operation, and Maintenance Manual 99