20
Manual 4804 Rev C p/n 004804 0000
07
DISASSEMBLY
GENERAL
KLRC liquid ring pumps incorporate two sets
of tie-rods, which fasten either stages or ends
of the pump to the center housing. This allows
independent work on each stage. The stages are
referred to as drive end (DE) and non-drive end
(NDE). For models 125 through 525, the suction
À
ange and the longer
¿
rst stage are located at the
drive end, and the discharge
À
ange and shorter
second stage are located at the non-drive end. For
models 40 and 75, which do not have a crossover
pipe, the suction
À
ange and
¿
rst stage are located
at the non-drive end, and the discharge
À
ange and
second stage are located at the drive end.
Repair on the pump is most easily accomplished
with the pump axis in a vertical position. Adequate
support is provided by pump stands as shown in
Figure 8-1 on page 26
. Disassemble a pump
only to the extent necessary for repair. See the
following applicable disassembly and assembly
steps.
DISASSEMBLY PROCEDURE
Remove pump from installation and drive coupling
with drive key from pump shaft. Drain sealant
À
uid
from pump by removing all 1/4" NPT drain plugs.
NDE Shaft Seal
1. Position pump vertically on support stand,
NDE up.
2. Remove NDE bearing housing cap.
3. Remove bearing housing
À
ange screws and
use two in threaded holes to push off bearing
housing.
4. Remove the loose elastomer
À
inger, the shaft
seal seat and the ball bearing from the bearing
housing.
5. Remove the shaft seal head from the shaft.
Because various shaft seal types with different
lengths can be used in the seal cavity, some
seals require the use of seal spacer washers
between seal head and impeller locknut. For
identical seal replacement, these spacers must
be reused.
OTE:
N
For NDE shaft seal replacement only, see
NDE Shaft Seal and Bearing Housing on
page 25. For disassembly of the NDE
stage only or complete disassembly, see
NDE Stage on page 20.
NDE Stage
1. Remove the crossover pipe at connecting
À
anges.
2. Remove NDE tie-rod nuts and lift off the NDE
end casing. Remove the end plate from the
end casing only if it needs to be replaced.
3. Remove the impeller housing.
Содержание KLRC Series
Страница 6: ...iv Table of Contents Manual 4804 Rev C p n 004804 0000 ...
Страница 33: ...27 08 Reassembly Manual 4804 Rev C p n 004804 0000 Figure 8 2 Bearing Driver Tool ...
Страница 34: ...28 08 Reassembly Manual 4804 Rev C p n 004804 0000 Figure 8 3 Foot Alignment Tool ...
Страница 37: ...31 09 Troubleshooting Manual 4804 Rev C p n 004804 0000 NOTES ...
Страница 38: ...32 Parts Lists and Assembly Drawings Manual 4804 Rev C p n 004804 0000 CROSS SECTION KLRC 40 AND KLRC 75 ...
Страница 42: ...36 Parts Lists and Assembly Drawings Manual 4804 Rev C p n 004804 0000 CROSS SECTION KLRC 125 TO KLRC 525 ...
