Goulds Pumps NM 3196 i-FRAME - IOM - Manual (Page 85)

319
408N
408A
241
370F
408N
408W
372T 113A 408W
408M
761B
2. Install the outboard bearing (112A) on the shaft (122).
The regreaseable bearing has a single shield. The outboard bearing is installed with the shield toward
the impeller.
a) Inspect the shaft (122) to ensure that it is clean, dimensionally correct, and is free of nicks and
burrs.
b) Lightly coat the bearing seating with a thin film of oil.
c) Remove the bearing (112) from its packaging.
d) Wipe the preservative from the bearing (112) bore and outer diameter.
e) Use an induction heater with a demagnetizing cycle to heat the bearing (112) to an inner ring
temperature of 230 °F (110 °C).
f) Position the bearing (112) on the shaft (122) against the shoulder and snug the locknut (136)
against the bearing until it is cool.
The locknut prevents the bearing from moving away from the shaft shoulder as it cools.
g) Remove the bearing locknut (136) after the bearing (112) cools.
3. Put the lockwasher (382) onto the shaft (122).
4. Thread the locknut (136) onto the shaft (122) and tighten it until it is snug.
5. Bend the tangs of the lockwasher into the slots of the locknut.
6. Put the bearing-retaining ring (361A) onto the shaft (122).
Make sure that the flat side of the ring is towards the bearing.
7. Coat the inner surfaces of the bearings with lubricant.
8. Put the inboard bearing (168) onto the shaft (122).
The regreasable bearing has a single shield. Make sure that the bearing is installed with the shield away
from the impeller.
168
361A
122
112
382
136
Maintenance
Model NM 3196 i-FRAME Installation, Operation, and Maintenance Manual 83