Goulds Pumps 3610 - IOM - Manual (Page 84)

Maintenance
g) Check the condition of the outer races by rotating the bearings by hand in opposite
directions:
• The outer races generally cannot be counter-rotated by hand, but if they do move,
the resistance must be high.
• If the outer races are loose, the bearing is not properly seated and must be
retightened.
h) When you have achieved the proper bearing assembly, set the lockwasher tab in the
slot in the locknut.
4. Lift the lower half of the bearing housing (134A) into place, positioning the two inboard oil
rings (323) in the bearing housing grooves.
5. Place the installed inboard labyrinth seal (333A) in the lower housing.
6. Finger tighten the lower housing to the head-bearing flange with the head-to-bearing
housing studs (371T) and nuts (427J).
7. Install the sleeve bearing (117):
a) Place the lower half of the sleeve bearing (117) onto the shaft (122) and slide it around
the shaft into the lower bearing housing, moving the oil rings accordingly. Position the
inboard oil rings (323) in the grooves on the sleeve bearings.
b) Install the dowel pins in the pre-drilled dowel pin holes between the housing flange and
the head-bearing flange.
c) Tighten the nuts (427J) on the bearing housing to the head studs (371T).
d) Place the upper half of the sleeve bearing (117) on the shaft, moving the oil rings aside.
When the bearing top half is in place, move the oil rings back into the bearing housing
and sleeve grooves.
8. Install the upper half of the bearing housing (134A).
9. Place the outboard oil ring (114) on the oil-ring sleeve (443B).
10. Adjust the end play with the gasket (361A) and the thrust end cover (109A).
When new bearings are installed, you must measure the axial end play:
a) Bolt the end cover to the thrust housing.
b) Move the shaft axially from the coupling end.
c) Measure the shaft axial movement with a dial indicator mounted on the radial bearing
housing.
This table shows the clearance requirements between the thrust bearing end cover and the
bearing:
Bearing type Clearance in inches (millimeters)
Ball/ball 0.005-0.010 (0.127-0.254)
Sleeve/ball 0.005-0.010 (0.127-0.254)
Sleeve/Kingsbury 0.010–0.013 (0.254–0.330)
11. Install the thrust bearing outboard-end cover (109A), with the gasket (361A). Tighten the
end cover to the housing with the capscrews (371C).
82 Installation, Operation, and Maintenance Manual