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This is a proprietary document of Kirloskar Brothers Limited, Kirloskarvadi-416308, Dist-Sangli (India)
ISSUE DATE: 17.09.2010 LAST REV. DATE:
5.2.1.1 Dismantling:
Follow the following simple steps to dismantle the pump.
5.2.1.1.1 Isolate power supply to motor.
5.2.1.1.2 Shut off valves controlling flow to and from the pump.
5.2.1.1.3 Remove the gland sealing connection and auxiliary piping, if any.
5.2.1.1.4 Remove the spacer of jaw type coupling in case of pumps fitted with spacer type
coupling. Remove the prime-mover in case of pumps fitted with standard type of
jaw type coupling. Remove the pump half of coupling from the pump shaft.
5.2.1.1.5 Drain the delivery casing by removing the drain plug (601). Remove support foot
(251).
5.2.1.1.6 Pumps covered under assembly ‘A’. (Please refer exploded view page 19).
Unscrew the nuts (581) holding delivery casing (105) and stuffing box housing
(220) and bearing housing (240). Take out the sub-assembly of bearing housing
with stuffing box and impeller etc.
5.2.1.1.7 Pumps covered under assembly ‘B’. (Please refer exploded view page 19).
Unscrew the nuts (581) holding delivery casing (105) and st. box housing and
take out the sub-assembly of stuffing box housing, bearing housing, impeller etc.
5.2.1.1.8 Unscrew the impeller nut (330) and remove washer under it (410).
5.2.1.1.9 Remove the impeller (151) from the shaft.
5.2.1.1.10 Take out the impeller key (320).
5.2.1.1.11 In case of assembly ‘A’ just separate the stuffing box housing (220) from the
bearing housing.
5.2.1.1.12 In case of assembly ‘B’ separate the stuffing box housing (220) from the bearing
housing by unscrewing the nuts (528.2) holding them together.
5.2.1.1.13 Unscrew the gland nuts (582.1) and take out gland (223).
5.2.1.1.14 Remove stuffing box packings (430) along with Lantern ring (227) from the
stuffing box housing.
5.2.1.1.15 Remove the shaft sleeve (310) and remove gasket for shaft sleeve (515).
5.2.1.1.16 Remove liquid deflector (236). Remove the bolts (631) holing bearing cover
NDE and DE and remove bearing cover (272).
5.2.1.1.17 Take out the shaft (180) from the bearing housing along with bearing (260) by
light hammering from driving end.
5.2.1.1.18 Remove the bearings (260) from shaft with the help of puller. Do not hammer the
bearings as hammering may spoil them.
5.2.1.2 Reassembly
Before assembling, all the parts should be thoroughly cleaned in Kerosene, Petrol
or Benzene to remove the dirt rust etc. After cleaning, all the parts should be
thoroughly checked for wear and replaced, if necessary. Replace all paper
packings.
5.2.1.2.1 Mount the driving and non-driving end side bearings on the shaft. Use arbor
press or induction heater. Do not use hammer. Fill-up the bearings with grease.
5.2.1.2.2 Fit the NDE Bearing cover and tighten the bolts to hold it on bearing housing.
5.2.1.2.3 Insert the shaft along with bearings in bearing housing from DE side.
5.2.1.2.4 Fit the DE bearing cover and tighten the bolts to hold it on bearing housing.
5.2.1.2.5 Mount the liquid deflector on shaft on NDE side.
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