Flowserve IJ, Installation Operation & Maintenance

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IJ PUMP OPERATION AND MAINTENANCE MANUAL
BO2660-01 6-34
b. Loosen bearing housing bolting.
c. Use jacking bolts on bearing housings to center rotor in seal bore.
d. Tighten bearing housing bolting.
e. Reindicate shaft to ensure it is still centered in seal bores.
f. Redowel bearing housings.
6.6.3.2 Rotor Axial Alignment
To set the rotor axial running position, proceed as follows:
1. Establish that the rotor has been radially centered and that the journal bearings and bearing
housings remain in position.
NOTE
If your pump is equipped with a hydraulic thrust collar, then
refer to the COUPLING AND THRUST COLLAR
INSTALLATION drawing at the back of this manual for
installation procedure. Do not use heat to install a hydraulic
thrust collar.
2. Oil and assemble:
a. Inner retaining plate (if applicable), thrust collar spacer (76), collar (57), and key (309) (if
installed); and
b. thrust collar nut (171).
NOTE
Install base rings in matched sets. Matching identification
appears on both halves.
3. Assemble inner parts of thrust bearing (54), as follows:
a. Lubricate base ring, leveling plates, and shoes with light oil.
b. Set bottom half of base ring on shaft and rotate ring to bottom position.
c. Set top half of base ring on shaft and make certain that ends of leveling plates interlock
properly.
d. Rotate bottom half of base ring to top, insert shoes, and rotate back into bottom position;
then insert shoes in top half of base ring.
4. Check thrust collar runout.
a. Set up dial indicator to read on face of thrust collar (57). Hold shaft against thrust
bearings and rotate shaft. See OPERATING SPECIFICATIONS for limit. If runout is
greater than limit, check for burrs and dirt on parting surfaces of shaft shoulder and thrust
collar.
b. Set up dial indicator to read outside diameter of thrust collar. See OPERATING
SPECIFICATIONS for limit.