Multitec

7.3.3Dismantling the bearings

The sections below describe partial dismantling (bearings, seals, etc.) and complete dismantling of the pump unit.

7.3.3.1Dismantling 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.

16

Shaft in 1.4021 / 1.4462

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

 

Multitec 32 - 125

Multitec 150

Fig. 20

Fig. 21

Oil lubrication with lip seal

 

Multitec 32 - 125

Multitec 150

Fig. 22

Fig. 23

Oil lubrication with labyrinth seal

 

Multitec 32 - 125

Multitec 150

Fig. 24

Fig. 25

Page 16
Image 16
Multitech 1777.8/7-10 G3 Dismantling the bearings, Dismantling the non-drive-end bearings Plain bearing

1777.8/7-10 G3 specifications

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