14
Fig. 12
Stop and start dispensing several times until clean
water comes out of the discharge unit tube.
Remove the filter-holder, take out the blind filter, and
insert a normal filter. Replace the filter-holder on the
group and rinse by dispensing water several times.
Make a coffee to eliminate any unpleasant taste.
CLEANING THE AIR FILTER AND DELIVERY HEADS
This operation must be carried out when the machine is
off and cold:
· Prepare a solution of 4 sachets of detergent powder,
Code 69000124, dissolved in a liter of boiling water
in a stainless steel, plastic, or glass container(NOT
ALUMINUM OR IRON).
· Remove the filters and immerse them with the filter
holders in the prepared solution, leaving them for at
least 10-20 minutes(all night is recommended).
· Remove them from the container and rinse them
thoroughly in running water.
· Remove the cup rack(Fig.11 - 1), slide out the drip
tray and clean them both.
· Check and clean the drainage sump of
Fig.12 - 3, removing any sludge with a spoon.
10.3. Periodic maintainance
Operation to be carried out with
machine under pressure.
·Discharge the water from the boiler (about 4 litres)
with hot water delivery switch 6.
·Wait until the machine has re-heated before use.
10.3.1. Replenishing water in the boiler
(To be carried out by qualified personnel)
· Turn off the machine and wait for the pressure in the
boiler to diminish(gauge needle on "0").
· Using a wrench(Fig.12 -1), firmly hold the outlet pipe
(Fig.12 -2) situated near the drainage sump while
loosening the hexagonal sealing screw(Fig.12 - 4) by
three turns at the most.
· Drain off the water and tighten the screw.
· Refill the boiler(see paragraph 7.3.)
10.3.2. Softener Regeneration
For Rancilio Softener Model DP-2 & DP-4
Regenerate the water softener within the time limits
specified for the softener as follows:
DP2
1 regeneration per month for 500 coffees/day;
2 regenerations per month(once a fortnight) for
1000 coffees/day.
DP4
1 regeneration per month for 1000 coffees/day;
2 regenerations per month(once a fortnight) for
2000 coffees/day.
This table has been drawn up according to a water
hardness of 25 degrees calculated on the French
scale.
See the documentation included with the softener
for instructions on how to use your softener.
Fig. 11
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