Goulds Pumps 3409 - IOM - Manual (Page 39)

DISASSEMBLY&REASSEMBLY
PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CHANGING ROTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
DISMANTLING (PUMP WITH PACKING) . . . . . . . . . . . . . . . . . . . . 41
ASSEMBLY (PUMP WITH PACKING) . . . . . . . . . . . . . . . . . . . . . . . 42
Pumps With Grease Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Pumps With Oil Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
DISMANTLING (PUMP WITH MECHANICAL SEALS). . . . . . . . . . . . . 45
ASSEMBLY WITH MECHANICAL SEALS . . . . . . . . . . . . . . . . . . . . 46
Pumps with Grease Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Pumps with Oil Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
ADJUSTABLE WEAR RINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
OIL LUBRICATED BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
VERTICAL UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Upper Casing Half Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Rotating Element Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Reassembly of Rotating Element . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Replacing Upper Casing Half . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Complete Pump Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
LIMITED END FLOAT COUPLINGS. . . . . . . . . . . . . . . . . . . . . . . . 54
PROCEDURES
The procedures outlined in this section cover the
dismantling and reassembly of two different types of 3409
pump construction.
A. 3409 pump with packing.
B. 3409 pump with mechanical seals.
Each procedure provides the step-by-step instructions for
dismantling and then reassembling the pump, depending
upon the type of shaft seal used.
When working on the pump, use accepted mechanical
practices to avoid unnecessary damage to parts. Check
clearances and conditions of parts when pump is
dismantled and replace if necessary.
Steps should usually be taken to restore impeller and casing
ring clearance when it exceeds three times the original
clearance.
If your pump has adjustable wear rings, see Adjustable
Wear Rings in the Disassembly & Reassembly Section.
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CAUTION
For pumps in a vertical configuration (half pedestal
or full pedestal), please follow the instructions for the
disassembly and reassembly in the Vertical Units
(Half and Full Pedestal) Section.
3409 IOM 11/04
39
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