KIRLOSKAR i-HT, Instruction On Installation, Operation And Maintenance

Page: 28 / 50

IOM/i_HT Issue Date: 26/06/2009
Page 28 of 50
Last Revision:26/10/2009
3. Check impeller for correct rotation page 31 and slide onto shaft from drive
end.
4. Screw second impeller locking nut [33000] or shaft sleeve onto shaft at
drive end and using hook spanner, lock up tight against the impeller hub.
From step 5 the assembly procedure is the same as for clockwise rotation
pumps.
Two Stage Pump
7.4 Dismantling Procedure
1. Drain the pump by opening air vent valve
2. Remove all the screws of bearing housing (240) tightened with casing,
insert (979) & bearing cover (271) and dismantle the bearing cartridge.
3. Remove all the nuts and bolts (577, 581) and locating pin (611) of the upper
and lower casing flange.
4. Insert a screw driver or peg bar into the slot between the two halves and
separate two halves, lifting of the upper half casing.
5. Tap the inserts (979) with a soft hammer to break the seat between the
insert and lower half casing and lift the rotating unit out of the lower half
casing.
6. 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.
7. Remove bearing cover (271) in the same manner. Remove the liquid
deflectors (236).
8. While removing cartridge mechanical seal.
9. Lock the seal with 4 clamps provided with on seal.
10. Release the allen screws provided to clamp the seal with shaft sleeve
11. Remove fasteners used for tightening gland plate with insert.
12. Remove the impeller nut & insert from DE.
13. Remove impellers with impeller ring from shaft. Impellers at DE and NDE are
with different bores 70 and 72 respectively. So they can’t be interchanged
with there positions.
14. Remove the impeller key (320). Take out interstage ring (204) along with
the interstage bush (313).