Multitech 1777.8/7-10 G3 - Manual (Page 16)

Shaft in 1.4021 / 1.4462
Multitec 32 - 125 Multitec 150
Multitec 32 - 125 Multitec 150
Multitec 32 - 125 Multitec 150
Multitec
16
7.3.3 Dismantling the bearings
The sections below describe partial dismantling (bearings,
seals, etc.) and complete dismantling of the pump unit.
7.3.3.1 Dismantling the non-drive-end bearings
Plain bearing
The plain bearing is removed without dismantling the hydraulic
section of the pump.
Axial suction nozzle:
Fig. 17
- Pull off bearing cover 160.2 using forcing screw.
- Remove circlip 932.1 (shaft in C45) or bolt 901.2 and disc
550.7 (shaft in 1.4021 / 1.4462).
- Take out bearing sleeve 529.
- Pull out bearing cartridge 381 with its two O-rings 412.2.
N.B.: Anti-rotation pin 561.1 remains in position.
Radial suction nozzle:
Fig. 18
- Undo bolts 901.3 and remove cover 160.1 with O-ring 412.3
and bearing cartridge 381 with O-rings 412.2.
- Remove circlip 932.1 (shaft in C45) or bolt 901.2 and disc
550.7 (shaft in 1.4021 / 1.4462).
- Pull out bearing sleeve 529.
- Remove disc 550.6.
N.B.: Anti-rotation pin 561.1 remains in position.
Fig. 19
Rolling element bearings:
If the pump is oil-lubricated, drain the oil before dismantling.
- Unscrew bolts 901.4 or 914.5 and remove non-drive-end
bearing cover 361.1 or 361.2.
- Unscrew nut 920.7 with lockwasher 931 or the nut with
castellated nut 920.6.
- Pull out sleeve 520.2 with rolling element bearing 320.2.
Grease lubrication with lip seal
Fig. 20 Fig. 21
Oil lubrication with lip seal
Fig. 22 Fig. 23
Oil lubrication with labyrinth seal
Fig. 24 Fig. 25