Goulds Pumps 3600 - IOM - Manual (Page 84)

Maintenance
7. Keep the bearing housing level from side to side during the bearing housing adjustment in
order to ensure the correct oil level setting.
8. Double-check the centering of the rotor with a feeler gauge between the casing rings and
impeller rings and confirm the clearance around the circumference.
For standard clearance use a 0.003 in. (0.076 mm) feeler gauge. For API clearance use a
0.006 in. (0.152 mm) feeler gauge. Make minor adjustments to the bearing housings
accordingly.
9. Recheck the shaft-to-seal chamber bore TIR after this adjustment.
Side-to-side readings must be 0.005 in. (0.127 mm) or less. The bottom reading must be
0.0025 in. (0.0635 mm) or less.
10. Tighten the mounting screws on the bearing housing.
Confirm that the shaft-to-seal chamber TIR has not changed. Adjust the bearing housings
until the TIR criteria is met with the mounting screws firmly tightened.
11. Mount a magnetic base dial indicator on the thrust end of the shaft and indicate the housing
face of the thrust bearing.
Readings must be within 0.003 in. (0.076 mm) TIR. If this value is exceeded, inspect the
bearing housing and the casing face, and correct any condition that is out of tolerance.
12. Drill pilot holes, taper-ream holes for the dowel pins, and install the dowels.
13. Remove the temporary shims from under the center case bushing either by removing the
bushing or by removing the rotor.
Assemble the casing
1. Lower the upper half of the casing, using taper pins to correctly align to the lower half.
82 Model 3600, API 610 8th, 9th, 10th & 11th Editions (ISO 13709) Installation, Operation, and Maintenance Manual