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© Rocket Milano s.r.l. - RE DOPPIA series. User Manual Ed. 01.2019. Specifications subject to change without notice. Page 16
Now put a small amount of special detergent for espresso machines into the blind
filter.
Now you have two options to back flush the group using
•
The “manual” procedure
:
Press key
“
P
”
and switch it off after 15 seconds.
The purpose of this is to push espresso machine cleaning solution back through the
coffee brewing head (group) and back out through the exhaust solenoid thus cleaning
the coffee brewing circuit of the machine.
Repeat the procedure several times, and each time you turn off key
“
P
”
remove the
filter handle and empty the water sitting in the blind filter. Tighten the filter handle
firmly into the brewing head (group). Repeat until the discarded water is clean and
fresh.
Ensure that you back flush the machine once again so the detergent residues are
washed away.
•
The “automatic” proced
ure:
P
ress “P” and “I.” key of the group you wish to back flush. The back-flushing cycle
stops by itself when terminated.
For the following operations, the machine must be switched off, unplugged
and completely cooled down:
Clean showers, group gaskets and group flange with a clean brush (to be used only
for this purpose).
Cleaning the filter holder and the metal filter baskets:
With a small screwdriver or teaspoon, flick out the filter basket from the handle.
Once you have the filter basket out, clean both the filter basket and the internal
surface of the handle with a pot scourer until both surfaces are clean from the black
coffee oils.
Should the oils in the handle have built up to excessive amounts, it may be necessary
to soak the handle and the metal filter basket in hot water with a cap full of special
detergent product for espresso machines for 30 minutes or so and then rinse
thoroughly in fresh water.
Wash metal filter baskets and filter handle in warm water adding a special detergent
product or espresso machines following the instructions of the specific product. It
must be food quality and for this specific use with coffee machines.
Clean the drip tray (Fig. 1 - 9) and grid with a non-abrasive damp cloth.
Clean drain tray (located under the drip tray) with a clean damp cloth and a clean
brush.
