EVOCA La Radiosa - Brewing Unit Maintenance

05-2019 0073 00 71
BREWING UNIT MAINTENANCE
After 10,000 dispensed beverages or every
6 months, the coee unit requires a small
amount of maintenance work in order to
optimise how it works over time.
To perform the maintenance work, the unit
needs to be removed as follows:
1. Disconnect the coffee outlet nozzle from
the unit by rotating it 90° away from the
connecting rod and pull it outwards.
2. Turn the unit end stop lever, rotating it
until it is in a horizontal position.
3. Remove the coffee unit.
1
2
3
4
5
6
7
8
rEmoviNg/rEplaciNg tHE uppEr filtEr
aND sEal
In order to remove or replace the upper
lter and seal, proceed as follows:
1. Unscrew the lateral fixing screw (5) of the
upper piston key (6).
2. Rotate the upper piston (1) upwards.
3. Remove and replace the upper seal (7).
4. Unscrew the upper filter (9) so that it can
be removed and replaced.
rEmoviNg/rEplaciNg tHE lowEr filtEr
aND sEal
In order to remove or replace the lower lter
and seal, proceed as follows:
1. Manually bring the unit to the discharge
position with the lower piston (12).
2. Unscrew the central fixing screw to re-
move the filter (10).
3. Press on the end of the piston guide ring
(14) to obtain an extra stroke from the
lower piston (12).
4. Using a small screwdriver, pry and slide
the lower piston (12) out from the piston
rod (14) whilst being careful not to dam-
age the piston or the sealing elements.
5. Remove and replace the lower seal (13).
1
10
12
2
7
9
15
11
13
14
Fig. 49
1. Upper piston
2. Coffee outlet nozzle
3. Lower scraper
4. Connecting rod
5. Lateral screw
6. Key
7. Upper seal
8. Unit stop lever
9. Upper filter
10. Lower filter
11. Lower scraper
12. Lower piston
13. Lower seal
14. Piston guide ring
15. Upper scraper
16. Unit cover