✓
The upper section of the volute casing has been removed.
✓
Suitably dimensioned lifting tackle is available.
1.
Undo screwed connection 901.4 between bearing housing 350.1 and the
bearing brackets. Undo screwed connection 901.07 / 920.05 for fastening
bearing cover 360.
2.
Press the bearing housing out of the centring hub of the volute casing. Use
suitable lifting equipment, e.g. looped ropes, to lift the rotor out of the lower
casing half and securely place it down in a horizontal position.
7.4.5
Dismantling the rotor
Dismantling the rotor of a horizontally installed pump
✓
The rotor has been placed on a clean assembly surface and secured against
rolling off.
✓
The general assembly drawing is available.
1.
Dismantle the pump-end coupling half.
2.
Pull off the bearing housing of the fixed bearing (opposite the drive end).
3.
Remove slotted round nut 920.03.
4.
Take deep groove ball bearing 312 with bush 520 off the shaft.
5.
Remove bearing cover 360.
6.
Pull V-ring 411.01 off the shaft protecting sleeve.
7.
Remove seal cover 471 with the mating ring of the mechanical seal.
8.
Pull off shaft protecting sleeve 524.01 with mechanical seal 433.
9.
Remove shaft seal housing 441.
10. Impeller 234 sits on the shaft with a sliding fit. Normally, it can be removed
easily. If the impeller is hard to remove, it can be loosened by gently tapping
the hub with a wooden mallet.
11. If applicable, remove the complete second shaft protecting sleeve 524.01 with
shaft seal housing 441 and shaft seal ring.
12. Pull off bearing housing 350.01.
13. Remove circlip 932 and pull off deep groove ball bearing 321.
Dismantling the rotor of a vertically installed pump
✓
The rotor has been placed on a clean assembly surface and secured against
rolling off.
✓
The general assembly drawing is available.
1.
Dismantle the pump-end coupling half.
2.
Undo nuts 920.02. Remove bearing cover 160. Then remove locknut 920.01, disc
springs 950 and disc 550.03.
3.
Remove bearing housing 350.02, shaft protecting sleeve 524.02, bearing bush
545 and spacer sleeve 525.
4.
Impeller 234 sits on the shaft with a sliding fit. Normally, it can be removed
easily. If the impeller is hard to remove, it can be loosened by gently tapping
the hub with a wooden mallet.
5.
Pull off shaft seal housing 441 with the shaft seal and shaft protecting sleeve
524.01.
6.
Remove nuts 920.05, bearing housing 350.01 with spacer ring 550.02 and circlip
932 as well as spacer ring 550.01.
7.
Pull off bearing cover 360 and deep groove ball bearing 321.
7 Servicing/Maintenance
Omega / Omega V
59 of 94
Содержание Omega
Страница 93: ......
