Goulds Pumps 3420 - IOM - Manual (Page 44)

6. Remove the coupling guard endplate.
7. Oil Lubrication: Drain the oil from the bearing
housings by removing the bearing housing drain plugs
(item 358). Replace the plugs after the oil is drained.
Remove the oiler.
NOTE: Oil analysis should be a part of a preventative
maintenance program, and is helpful in determining a
cause of a failure. Save the oil in a clean container for
inspection.
8. Packing: Remove the gland nuts (355) and slide the
glands (107) away from the stuffing boxes.
Conventional Mechanical Seal: Remove the gland
nuts (355) and slide the gland, with the stationary seat,
away from the seal chamber.
Cartridge Mechanical Seal: Replace the spacer clips
on the mechanical seal sleeve. Loosen the set screws
in the locking collar on the mechanical seal. Remove
the gland nuts (355) and slide the mechanical seal
away from the seal chamber.
9. Remove the casing parting nuts (425B).
10. Remove the dowel pins (469G).
11. Loosen the upper half casing (100) by using the
casing jacking bolts (418).
12. Remove the upper half casing evenly using the lifting
lugs. See Fig 28. Make sure adequate clearance is
available to remove the upper half. See Table 6.
Table 6
Minimum Headroom
for U.H. Removal
Frame Pump Size
(From Suct C/L)
inches (mm)
SX
12x14-15 25 (635)
16x18-17h 31 (787)
MX 18x20-20 34 (864)
M
16x18-30 41.25 (1048)
18x20-30 41.75 (1061)
20x24-24 37.75 (959)
20x24-30 42.5 (1080)
M (Mod) 20x24-28 44 (1118)
- 18x20-24 38 (965)
L 24x30-32 45 (1143)
LDS
30x30-31 50.69 (1288)
30x30-38 53.25 (1353)
XL
30x36-42 62 (1575)
20x30-42 70 (1778)
XXL 36x42-52 76 (1930)
s
! WARNING
Do not lift the entire pump using the lifting lugs. They
are not designed to support the full weight of the
casing. They may break and cause serious physical
injury and severely damage the pump.
13. Exercise care to prevent the casing gasket from
tearing.
40
3420 IOM 8/09
Fig. 28