KSB HPK-L, Инструкция по установке и эксплуатации

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7 Servicing/Maintenance
52 of 74
HPK-L
1136.8/15-EN
Pump set with standardised mechanical seal
ü The notes and steps stated in ( ð Section 7.4.1, Page 49) to
( ð Section 7.4.6, Page 51) have been observed/carried out.
ü The bearing has been placed in a clean and level assembly area.
1. Undo the socket head cap screw or grub screw in the coupling hub and use a
puller to pull the coupling half off the pump shaft. Remove key 940.02.
2. Loosen hexagon head bolts 901.84 and remove fan hood 832.
3. Undo hexagon socket head cap screws 914.02.
4. Gently drive shaft 210 together with rolling element bearings 320.02, bearing
cover 360.02, fan impeller 831, mating ring carrier 476 and mechanical seal 433
out of bearing bracket 330 towards the drive end.
5. Undo grub screws 904.32.
6. Remove support disc 550.59 (LP02 and LP03 only) and O-ring 412.07.
7. Pull shaft sleeve 523 with mechanical seal 433.02 off shaft 210 towards the
pump end.
8. Pull mating ring carrier 476 off at the pump end together with the mating ring
of the mechanical seal.
9. Take the mating ring out of mating ring carrier 476.
10. For versions with mechanical seals in tandem arrangement only: Unscrew the
grub screw of the second mechanical seal and pull the seal off the shaft at the
pump end.
11. For versions with mechanical seals in tandem arrangement only: Remove the
second mating ring carrier 476.02 with the mating ring of the mechanical seal at
the pump end.
12. For versions with mechanical seals in tandem arrangement only: Remove the
mating ring from mating ring carrier 476.02.
7.4.8 Dismantling the bearings
NOTE
The bearings are packed with grease and must not be heated up for dismantling. If
heated up, they must be re-packed with grease.
ü The notes and steps stated in ( ð Section 7.4.1, Page 49) to
( ð Section 7.4.7, Page 51) have been observed and carried out.
ü The shaft with the rolling element bearings has been placed in a clean and level
assembly area.
1. Unbend lock washer 931.01. Unscrew slotted round nut 920.21 (right-hand
thread). Remove lock washer 931.01, fan impeller 831, bearing cover 360.02,
spacer sleeve 525.24 and drive-end ring 500.32.
2. For versions with bearing carriers LN02 to LN04 only: Pull bearing 320.02 off the
shaft. Remove thrower 507.12, spacer sleeve 525.03 and pump-end ring 500.32
from shaft 210.
3. For versions with bearing carriers LN05 and LN06 only: Pull bearings 320.02,
321.02 off the shaft.
4. For versions with one mechanical seal and shaft seal ring only : Remove pump-
end ring 500.32 from shaft 210.
5. For versions with one mechanical seal and shaft seal ring only : Remove O-ring
412.03 and spacer sleeve 525.03.
6. For versions with one mechanical seal and two angular contact ball bearings
only:
Remove spacer sleeve 525.03 and thrower 507.12 from shaft 210.