Goulds Pumps 3409 - IOM - Manual (Page 45)

DISMANTLING (PUMP WITH MECHANICAL SEALS)
s
! WARNING
Prior to working on the pump, the power source
should be disconnected with lockout provisions so the
power cannot be re- energized to the motor. Close
isolating and discharge valves. Failure to follow these
instructions could result in property damage, severe
personal injury, or death (See Cross Sectional View in
the Appendices).
1. Drain pump by opening vent plug (408G) and
removing drain plugs (408G) on suction and discharge
nozzle.
2. Remove coupling guard and separate the coupling to
disconnect the pump from the driver.
3. Remove seal lines (102), if supplied.
4. Remove gland bolts (353B) and slide gland (250) away
from casing.
5. Remove all casing main joint cap screws (426 &
426A) and dowels (469G). Use slot in casing main
joint and separate the casing halves with a pry bar.
Lift upper half casing (100) by cast lugs.
6. Remove cap screws (372U) which hold bearing
housings (134) to the casing and lift rotating element
out of lower half casing (100). Rotating element may
now be moved to a suitable working location.
7. Pull coupling half and key (400) off shaft (122).
NOTE: A spare rotating element can be
installed at this point.
8. Remove cap screws from bearing covers (109 & 119).
9. Remove bearing housings (134), locknut (136), and
lockwasher (382). Mount bearing puller and remove
bearings (168 & 410). Remove thrust washer (535)
and snap rings (276).
NOTE: Locknut, lockwasher, and thrust washer are not
used on inboard bearing.
3409 IOM 11/04
45
Pump
Size
Qty. of
Item nos.
426 &
426A
Dimension
A
6x10-22 26
13.50 8x12-21 26
8x12-22 26
8x12-27 44
15.81
10x14-20S 26
12x16-23 26
14x16-17 24
14x18-23 32
14x18-28 34
10 x14-20L 26 16.60
Fig. 23
6