KIRLOSKAR i-HT, Инструкция по установке, эксплуатации и обслуживанию

Страница: 29 / 50

IOM/i_HT Issue Date: 26/06/2009
Page 29 of 50
Last Revision:26/10/2009
7.5 Assembly Procedure
1. Check the “O” rings (522) for cut or flows, discard if faulty, lubricate and roll
the “O” ring in groove.
2. Wipe over the shaft (180) with clean light oil.
3. Place the impeller key (320) into the keyway and interstage ring (204) along
with interstage bush (313).
4. Check the 1st & 2nd stage impeller for correct rotation and slide onto the shaft
from DE and NDE.
5. Place the impeller nut (330) onto the shaft DE and NDE and the DE impeller nut
against the impeller hub. After fixing the DE Impeller nut at a distance “A”
509mm. (See pate34) locate the NDE impeller nut. Slide the casing rings (190)
onto the impellers.
6. Check the “O” rings (522) for cuts or flaws, discard if faulty. Lubricate and roll
the “O” ring (522) into the groove in each insert (979.1 and 979.2).
7. Slide insert (979) tightened with cartridge mechanical seal with gland nuts,
liquid deflectors (236) & bearing cover (271) simultaneously over the shaft.
8. Ensure that no foreign particle should enter in bearing assembly. See the
cross-sectional drawing.
9. Heat the bearing (260) to approximately 100 deg. C. (212 deg. F) using
bearing oil bath.
10. Slide the heated bearing onto the shaft. 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.
11. Cool the bearing to room temperature and coat both the slides with 200
grams of recommended grease.
12. Place the bearing cartridge over the bearings and tighten up with the insert.
13. Tighten the bearing cover (271) with bearing cartridge.
14. Apply same procedure to the DE end side.
15. Lift the rotating unit by means of crane. Place it in lower half casing such
that DE insert takes guide on lower half casing, casing rings should takes guide
in groove provided in lower half casing.