Maintenance
Model API 3171 Installation, Operation, and Maintenance Manual
45
4. Remove the impeller key (178).
Save the key for reassembly unless it is damaged.
5. For L group models only, do the following:
a) Remove the casing (100) to adapter (108) bolts.
b) Remove casing. Do not remove casing collar (155) at this time.
c) Remove the adapter (108) to column bolts.
d) Remove the adapter. Do not remove steady bearing (197) at this time.
Figure 19: Remove adapter
CAUTION:
Two people should handle any shaft over 9 feet long. Improper handling can bend the shaft.
Disassemble the column
1. Remove the column down to the steady bearing housing bolts (372B).
If your pump has no intermediate steady bearings (only one column section), then skip this
step since you do not have any column extension (306) or steady bearing housing (213).
a) Start at the casing end of the pump and remove the column extensions (306), steady
bearing housings (213), and deflectors (123) one at a time. Support the shaft in order to
prevent bending while you remove these sections.
It is not necessary to remove the head column (192). Do not remove the steady
bearings at this time. Refer to inspection procedures prior to removal.
Figure 20: Disassemble the column
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