Page 58 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

Installation, Maintenance, and Repair of Horizontal Pumps 43

u E. Measure gap between housing and end cap and remove bearing
housing from bearings.
h. Insert gaskets with a thickness of .003 in. greater than mea-
sured gap and push bearing housing over bearings, insert dow-
els and bolt into place.
i. Bring outboard end cap forward and tighten cap screws.
j. Check shaft assembly for end play. End play should be .002 in.
k. Slide deflectors into place and lock to shaft with socket head set
screws.
1. Rotate shaft to check that it is free to rotate and does not bind.
m. Reinstall coupling. Make sure coupling is firmly seated on
shaft, and coupling key does not interfere with proper mount-
ing.
n. Fill housing with proper grade of oil.
0. Check alignment of unit and lubricate coupling (lubricated type
only).

Bearing Housing-Sleeve Bearing Construction

This arrangement consists of ring-oiled sleeve-type babbitt-lined radial
bearings combined with an angular contact ball thrust bearing. The thrust
bearing is relieved in the bore of the housing to assure freedom from in-
terference with the radial alignment, and is oil-ring lubricated. Only por-
tions of Figure 1-16 apply.

1. Remove coupling spacer and coupling nut (2 1-5).
2. Tap pump half coupling off its taper seat on shaft.
3. Loosen socket head set screws in deflectors and slide deflector
back against sleeve seat.
4. Remove top halves of bearing housings and sleeve bearings.
5. Remove in sequence:

a. End cap (13-1)
b. Oil ring (17)
c. Thrust bearing lock nut (21-4)
d. Thrust bearing lock washer
e. Oil ring collar (82-2)
f. Thrust bearing and bearing mounting sleeve
g. Thrust bearing spacer

6. Remove lower halves of sleeve bearing and unbolt bearing hous-
ings.
7. Slide deflectors off shaft.