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Repair
Service Manual EF 473 / EF 474 enVersion 1.0
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
compact brewing unit (34).
9. Remove clip (14) and hose (32) with o-ring
(15) from compact brewing unit (34).
10. Assemble new compact brewing unit
together with new coffee outlet (3) in
reverse sequence.
Replace o-ring (15).
)
Tighten new (EFR nr. 39256) closing
handle screws (36) with a torque of
450 N/cm.
33
7+8+6
2
23
34
36
36
5
3
14+32
23
23
35
37
23
15