Goulds Pumps XHD - IOM - Manual (Page 89)

Maintenance
• Inspect the inboard-bearing bores.
If any bores are outside the measurements in the Bearing fits and tolerances table, replace
the bearing frame.
• Inspect the shafts and sleeves for wear.
• Inspect the labyrinth seal O-rings for cuts and cracks.
Reassembly
Assemble the power end- XHD, oil lubrication
NOTICE:
Do not use a flame to heat bearings. Doing so will damage the bearing surfaces.
1. Install the bearings onto the shaft (items 346A grease shields shown below are for grease
lube only):
a) Use an induction bearing heater to heat the bearings to approximately 250ºF (121ºC).
This expands the bearings to ease their installation on the shaft.
b) Install the inboard and outboard taper roller bearings (409 and 410) onto the shaft (122)
in a face-to-face orientation.
c) Push the inner races firmly against the shaft shoulders until the bearings cool and are
locked into place.
2. Lubricate and install the spacer sleeve o-rings (512D) into the spacer sleeve (157).
3. Slide the spacer sleeve (157) onto the inboard end of the shaft (122) until it is flush with the
inner race of the inboard taper roller bearing (409). Use care when sliding the spacer
sleeve onto the shaft to prevent o-ring damage.
4. Coat the outside bearing races with oil to ensure they float in the frame.
5. Insert the inboard Inpro labyrinth seal (333A) into the inboard bearing cover (119).
6. Lubricate the inboard bearing cover o-ring (412) and insert into the inboard bearing cover
(119).
7. Insert the Bellville preload washer (529) into the inboard end of the bearing cartridge
housing (228) so it is in contact with the inboard taper roller bearing (410).
8. Slide the inboard bearing cover (with Inpro seal and o-ring attached) into the bearing
cartridge housing (228) carefully to avoid o-ring damage.
XHD Installation, Operation, and Maintenance Manual 87