Goulds Pumps 3393 - IOM - Manual (Page 92)

Maintenance
Assembly of complete pump
End and radial suction configuration common assembly procedures
See "End Suction Configuration" or "Radial Suction Configuration" below for steps
specific to end or radial suction configuration.
See Appendix B for running clearances
See relevant sectional drawing.
If the whole pump is to be assembled, it should be assembled in a vertical position. Start with
the discharge casing facing down so that the side that mounts against the bearing housing is
facing up. It is important that the pump be secured, stable and supported during assembly. A
workbench with a hole (approximately W' larger than the shaft) is very helpful in such cases. A
hoist or a second person is required for safe assembly.
WARNING:Make sure that the unit cannot roll or fall over and injure people or damage property.
NOTICE:
• Take care not to damage the shaft (122) during reassembly.
• Final stage diffuser is machined differently to fit into the discharge casing
• First stage impeller may be different than remaining impellers
• Any trimmed impellers are to be located at the discharge end of the pump
• Ensure suction and discharge casings are in the proper orientation
• Follow torqueing instructions and sequence and assembly checks in Appendix D.
90 Model 3393 Installation, Operation, and Maintenance Manual