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

Страница: 25 / 50

IOM/i_HT Issue Date: 26/06/2009
Page 25 of 50
Last Revision:26/10/2009
2. Remove all casing main joint nuts (58001) and dowel pins (61100). Remove
flushing piping.
3. Insert a screw driver or peg bar into the slots between the Upper and Lower
half casing and separate the halves, lifting off the upper half casing.
4. Tap the stuffing box inserts (97900) with a soft headed hammer to break the
seal between the stuffing box insert and lower half casing and lift the rotating
element out of the lower half.
5. Remove four hex. Head screws (57100) from each bearing housing (24001 &
24002) and remove the bearing housings from the bearings.
6. Remove bearing retaining nut (33600) and lock washer (41500) from the
outboard end of the shaft and using a puller remove the bearing [260] from the
shaft. Remove the drive end bearing [260] in the same manner. NOTE:
Retaining nut and lock washer are not used on the drive end bearing.
7. Remove shoulder rings [19900] from the shaft. Remove oil seals [50000] from
the supporting frame [22000].
8. Slide stuffing box inserts [97900] off the shaft. Mark the mechanical seal
position correctly before removing mechanical seal.It is very important to
assemble the pump. Remove mechanical seal from each stuffing box insert.
9. Remove casing rings [19000] from the impeller [15900].
10. a. Clockwise rotation :
Unscrew impeller nut [33000] from the non-drive end and slide it off the shaft.
b. Anti-clockwise rotation:
Unscrew impeller nut [33000] from the drive end and slide it off the shaft.
11. Remove impeller [15900], slide back impeller key [32000] and remove the
other impeller nut .Remove impeller key.
NOTE: For the overhauling of bearings, bearing hosing can be removed without
removing top casing. Pull the bearing housing by means of grip provided on the
bearing housing. There is slot on the insert face. By locating the puller in that
slot bearing can be easily removed.