Goulds Pumps 3408 - IOM - Manual (Page 37)

DISASSEMBLY & REASSEMBLY
3408 IOM 03/99
35
PRO CE DURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
CHANGING ROTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DIS MAN TLING (PUMP WITH PACKING) . . . . . . . . . . . . . . . . . . . 37
ASSEMBLY (PUMP WITH PACKING) . . . . . . . . . . . . . . . . . . . . 39
DIS MAN TLING (ME CHAN I CAL SEALS ON SHAFT) . . . . . . . . . . . . . 42
AS SEM BLY (ME CHAN I CAL SEALS ON SHAFT) . . . . . . . . . . . . . . 44
DIS MAN TLING (ME CHAN I CAL SEALS ON SHAFT SLEEVES) . . . . . . . 47
AS SEM BLY (ME CHAN I CAL SEALS ON SHAFT SLEEVES) . . . . . . . . 49
OIL LU BRI CATED BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . 52
VER TI CAL UNITS (MODEL 200, 250, 300) . . . . . . . . . . . . . . . . . . 53
Up per Cas ing Half Re moval . . . . . . . . . . . . . . . . . . . . . . . . 53
Ro tating El e ment Re moval . . . . . . . . . . . . . . . . . . . . . . . . . 54
Reassembly of Ro tating El e ment . . . . . . . . . . . . . . . . . . . . . . 54
Re placing Up per Cas ing Half . . . . . . . . . . . . . . . . . . . . . . . . 54
Com plete Pump Re moval. . . . . . . . . . . . . . . . . . . . . . . . . . 55
PROCEDURES
The procedures outlined in this section cover the
dismantling and reassembly of three different types of
3408 pump construction.
A. 3408 pump with pack ing on shaft sleeves.
B. 3408 pump with me chan i cal seals on shaft.
C. 3408 pump with me chan i cal seals on shaft
sleeves.
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.
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! CAUTION
For pumps in the vertical configuration,
(Models 200 and 300) please follow the
instructions for the disassembly and
reassembly of a vertical rotating element
starting on page 53.
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