Goulds Pumps ANSI FAMILY IOM (ATEX Compliant) - IOM - Manual (Page 83)

STX, MTX with Duplex Bearings
1. Install the oil fill plug (113A), oil drain plug (408A),
sight window (319), sight oiler plug (408J), four oil
mist connection plugs (408H), or grease fittings
(193) and grease relief plugs (113), and oil cooler
inlet and outlet plugs or oil cooler (408L, 408M) in
bearing frame (228) (Fig. 127).
2. Attach bearing frame foot (241) with bolts (370F).
Hand tighten (Fig. 127).
NOTE: There are several methods used to
install bearings. The recommended method is
to use an induction heater that heats as well as
demagnetizes the bearings.
s
! WARNING
Wear insulated gloves when using a bearing
heater. Bearings will get hot and can cause
physical injury.
3. Install outboard bearings (112A) on shaft (122).
NOTE: Refer to Appendix VII-2 for detailed
outboard bearing installation instructions.
l
! CAUTION
Duplex bearings are mounted back to back.
Make sure orientation of bearings is correct.
4. Place lockwasher (382) on shaft (122). Place tang
of lockwasher in keyway of shaft (Fig. 128).
5. Thread locknut (136) onto shaft (122). Tighten
locknut until snug. Bend any tang of lockwasher
(382) into a slot of locknut.
NOTE: Tighten locknut if necessary to align the
closest tab of lockwasher with slot on locknut.
6. Place bearing clamp ring (253B) over shaft (122).
Note orientation.
7. Install inboard bearing (168A) on shaft (122).
NOTE: Regreaseable bearing has a single
shield. The inboard bearing is installed with
shield away from impeller.
NOTE: Coat internal surfaces of bearings with
lubricant to be used in service.
8. Coat outside of outboard bearing (112A) and bore
of bearing housing (134) with oil.
9. Lower shaft/bearing assembly into bearing
housing (134) (Fig. 129).
NOTE: Do not force assembly together.
ANSIFAM IOM - 5/08
81
6
Fig. 127
Fig. 128
Fig. 129