Goulds Pumps CV 3171 - IOM - Manual (Page 42)

42
CV 3171 IOM 05/11
NOTE: There are several methods for installing
bearings. The recommended method is to use
an induction heater that heats as well as
demagnetizes the bearing.
WARNING
Use insulated gloves when using a
bearing heater. Bearings will get hot
and can cause physical injury.
3. Install lockwasher (382) on shaft (122). Place
tang of lockwasher in keyway of shaft.
4. Thread locknut (136) onto shaft (122). Tighten
locknut until snug. Bend any tang of the
lockwasher into one of the slots on the locknut.
Tighten the locknut if necessary to align
lockwasher tab with a locknut slot.
5. Press grease seal (333) into bearing shell (134).
The seal is mounted with the lip out, facing
toward the pump casing.
6. Slide bearing shell onto pump end of shaft and
over the bearing.
7. Insert retaining ring (361A) in bearing shell
groove keeping flat side against bearing.
8. Slide labyrinth seal (332A) over coupling end of
shaft. Press into bearing shell unit to shoulder.
9. With the support plate in a vertical position,
slide the shaft horizontally through the motor
support. Support the shaft and column with
suitable stands (Figure 35).
10. Install hold down bolts (370C) and jacking bolts
(370D) with jam nuts (415).
ASSEMBLY OF COLUMN (WHEN
REQUIRED)
When intermediate steady bearings are required,
there will be additional column extensions (306) and
steady bearing housings (213) required.
1. Prepare the steady bearing housing
assembly(s) if required. Press in new steady
bearing. Install snap ring and seals on sealed
bearings (Figure 31). The seals are mounted
with the lips out, facing away from the steady
bearing.
NOTE: The steady bearing does not have to be
centered exactly nor do the holes in the bearing
have to line up with the holes in the housing.
There is a recessed area on the inside of the
housing (213) that allow lubricants to find the
opening in the bearing.
2. Slide steady bearing housing assembly (213)
onto the shaft. Seat housing against flange of
column pipe. Make sure that the drilled flush tap
matches the location of the holes in the support
plate.
3. Install column extension (306). Make sure
match marks scribed during disassembly line
up. Install bolts (372B).
4. Repeat steps 1-4 as necessary.
Figure 35
Figure 34