Repair

Replacing compact brewing unit (CBU)

Tools:

-Torx screwdrivers T10, T20

-Blade screwdriver no. 4

-Oval screwdriver

-Long-nose pliers

-Torque wrench

Procedure:

1.

Remove water tank (33) and drip tray (8)

 

together with drip grid (7) and capsule

 

container (6).

2.

Place machine on the repairing/service

 

holder device (see page 32).

3.

Remove 4 screws (2) on the bottom of the

 

machine.

4.

Swing out (EF 473) or snap out (EF 474)

 

and remove both side panels (5).

5.

Remove 2 screws (36) and pull off closing

 

handle (37).

6.

Remove 2 screws (23) at the front and 1

 

screw (23) at the back to detach cover (35).

7.

Unlatch coffee outlet (3) from compact

 

brewing unit (34) with a blade screwdriver.

8.

Remove 4 screws (23) and detach

 

 

 

33

 

 

 

23

 

 

 

 

 

 

2

 

36

34

 

 

 

 

 

 

 

35

 

 

 

 

23

 

7+8+6

5

37

 

15

23

36

 

 

14+32

 

 

 

 

 

 

23

 

 

 

 

 

3

 

 

compact brewing unit (34).

9. Remove clip (14) and hose (32) with o-ring

(15) from compact brewing unit (34).

Service Manual EF 473 / EF 474

10.Assemble new compact brewing unit together with new coffee outlet (3) in reverse sequence.

Replace o-ring (15).

22

)Tighten new (EFR nr. 39256) closing handle screws (36) with a torque of 450 N/cm.

Version 1.0 en

Page 22
Image 22
Nespresso EF 474, EF 473 manual Replacing compact brewing unit CBU