Goulds Pumps 3393 - IOM - Manual (Page 98)

Maintenance
13. Tighten the bearing locknut (136A) until resistance is felt when rotating the bearing outer
races in opposite directions by hand. See illustration.
14. Replace the bearing bracket (228C) and align with the shaft (122) and seal chamber (184).
15. Reinstall and tighten nuts (425) to proper torque values.
16. Position bearing housing o-ring (412) and reinstall bearing housing cover (119) with cap
screws (371C) and tighten to correct torque values.
The drain hole in the isolator must be at bottom dead center when the pump is in the
horizontal position. Use Loctite® thread sealant 5699 or equal when installing the cap
screws.
17. Replace cooling fan (392) if applicable.
18. Refit the seal guards.
19. Rotate shaft (122) to see that it turns smoothly.
20. Reorient the assembly 180
O so that the discharge casing is down and the shaft extends
up.
21. Install last stage impeller (101) and key (178) into discharge casing (100D). Any impeller
wear rings should have been installed first.
22. Install final stage piece (100H) and discharge casing o-ring (497D) and secure against
discharge casing. Casing and stage piece wear rings should be installed prior to this step
23. Install remaining impellers (101), impeller keys (178), stage casings (100G) and stage
casing o-rings (412K). Impellers should all butt up against one another.
96 Model 3393 Installation, Operation, and Maintenance Manual