ELEKTRA S1 Brass Manual de formación - Página 6
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Imprimir página8.MAINTENANCE AND CLEANING
5.
Remove filter baskets from
coffee handle and wash in
warm soapy water. Rinse them
thoroughly under hot running
water.
6.
Remove the metal drip tray
cover and plastic drip tray and
wash them in warm soapy
water.
7.
Use a clean, wet paper towel
or soft cloth to remove marks
from the surface of the
machine (while warm) and
polish with a clean, dry soft
paper towel or soft cloth.
Do not use any alcohol, solvents
or abrasive creams or cloths
on the surface of the machine.
Weekly
•
With commercial espresso
machine cleaning chemical
1.
Put three teaspoons of
cleaning chemical into half a
litre of very hot water.
2.
Place coffee baskets and
handle into the solution to
soak for 20 to 30 minutes.
Ensure that the bakelite part of
the handle is not immersed in
the solution.
9.BACKGROUND INFORMATION
Operating
The beauty of the Elektra Micro
casa a leva is that it uses a tradi-
principles
tional spring-loaded piston to
produce the eight bars of pressure
needed to pump hot water
through the coffee grounds.
The water in the boiler is heated
to give a boiler pressure of around
one bar of pressure. The boiler
pressure is governed by a pres-
sure release valve (called a pres-
sure-stat) that allows maximum
pressure to be reached regardless
of the boiler water level.
10
Looking into the group head.
Clean all parts, including the rubber sealing
ring and the surface of the shower head.
group head
shower head
rubber sealing ring
3.
Rinse and wash all parts with
warm soapy water.
4.
Rinse thoroughly in hot water.
The spring-loaded piston is com-
pressed by pulling a lever down.
This allows the pressurised boiler
water to enter the group head
chamber. When the lever is
released, the spring causes the
piston to return to the upright
position, forcing water through the
coffee grounds to extract a true
flavoursome espresso.
This machine allows the user to
extract coffee and froth/heat milk
at the same time.
9.BACKGROUND INFORMATION
The group head
The coffee handle fits into the
group head, with water flowing
through a "shower screen", as
below. If the basket is too full, the
grounds will press against the
shower screen, stopping the han-
dle from being fitted to the group
head.
The coffee handle has two lugs
either side that locate into two
slots in the group head.
The handle is fitted by aligning the
lugs and slots, then pushing the
handle up so it can be twisted to
the right.
When the coffee handle is fitted
into the group head, a rubber ring
inside the group head seals
against the top of the filter basket.
It's therefore important to make
sure the top of the filter basket is
clean and free of coffee grounds.
10.PRECAUTIONS
•
Place machine on a suitable
surface – which should be firm
and low enough to allow easy
operation of the pump lever.
When you are pulling it down,
your elbow should be above
the lever at all times to give
best control.
The boiler plug/safety release
•
valve – which should be firmly
screwed into the top of the
boiler before the machine is
switched on. This device incor-
porates a pressure release
valve (pressure stat) to regu-
late the boiler pressure.
It should only be tightened by
hand, as over-tightening can
damage the valve. Turn the
plug clockwise to tighten.
Precaution symbol
11
Otherwise leakage can occur, and
in some cases the rubber seal can
become dislodged due to a build-
up of coffee grounds behind the seal.
Coffee handle and group head.
Water passes through the shower screen
to give an even flow of water through
the coffee grounds.
locating lug
shower screen
•
When refilling the boiler, make
sure all pressure has been
released before removing the
boiler plug.
•
Other precautions are shown
elsewhere, indicated with an
exclamation symbol.
The boiler plug, safety release valve.
Turn clockwise to tighten.