6.1.7 Remove the bearing lock nut (336) and lock washer (415) from the NDE side of the
shaft. By using bearing puller remove the bearings from the shaft. Remove the driving
end bearing in the same manner.
6.1.8 Remove shoulder rings & bearing cover (271) in the same manner. Remove the
liquid deflectors (236).
6.1.9 Take out gland (229) and remove the stuffing box packing. Remove fasteners used
for tightening gland with pump casing.
6.1.10 Remove the sleeve lock nut, sleeve.
6.1.11 Remove impellers with impeller ring from shaft. Before removing impellers, put
the marks of the first & second stage on the impellers.
6.1.12 Remove the impeller key (320). Take out interstage ring (204)
6.2 Assembly Procedure for gland packed pumps
6.2.1 Check the “O” rings of impellers for cut or flows, discard if faulty, lubricate and
roll the “O” ring in groove.
6.2.2 Wipe over the shaft (180) with clean light oil.
6.2.3 Place the impeller key (320) into the keyway and interstage ring (204).
6.2.4 Check the 1st & 2nd stage impeller for correct rotation and slide onto the shaft
from DE and NDE.
6.2.5 Place the sleeves (310) onto the shaft DE and NDE and using the DE sleeve lock
nut (334) tight the DE sleeves against the impeller hub.After fixing the DE sleeve locate
the NDE sleeve with sleeve nut. Slide the casing rings (190) onto the impellers. Insert the
gland (229) from DE & NDE side of shaft.
6.2.6 Heat the bearing (260 & 263) to approximately 100 deg. C. (212 deg. F) using
bearing oil bath.
6.2.7 Slide the heated bearing onto the shaft to about shoulder ring (199) non driving
end. Place the locking washer (415) onto the shaft and screw the bearing lock nut (336)
using spanner Lock up tightly against the bearing. Bend the washer in slot of bearing lock
nut.
6.2.8 Cool the bearing to room temperature and coat both the slides with 200 grams of
recommended grease. Tighten the bearing cover (271) with bearing cartridge.
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