29
of
68
TECHNICIANS manual
ENGLISH
6.
COMMISSIONING
6.1
Safety precautions
The following residual risks are present during the
commissioning of the machine and cannot be elimi-
nated:
Electrical hazard:
When using the electrical appliance, several safety
standards must be observed:
t
do not touch the appliance with wet or damp hands
or feet;
t
do not use the appliance if barefooted;
t
do not pull the power cord to disconnect the appli-
ance.
Danger of high temperature:
Some parts of the machine can reach high tempera-
tures:
t
avoid contact with the coffee group, the filter holder
heater and water and steam spouts;
t
do not expose your hands or other body parts to the
coffee, steam, or hot water spouts.
Explosion hazard:
If provided with gas system, pay special attention to:
t
When indoors, always provide vents.
t
Check for gas leaks.
t
Do not under any circumstances attempt to light the
gas without first installing the proper injector.
t
Do not operate the gas burners when the boiler is
empty.
6.2
External motor pump adjustment
To adjust operating pressure proceed as follows:
t
Operate a coffee dispensing switch;
t
adjust the pressure by turning the screw located on
the pump (3) so as to obtain a pressure of between
8 and 9 bar. Tightening the screw increases the pres-
sure, and loosening it reduces the pressure. Check the
pressure by means of the pressure gauge (4) located
on the front part of the machine;
t
turn off the dispensing switch.
3
4
6.3
Preparing the filter holder
6.3.1 Filter
holders
t
In the housing of the filter holder (
1
) place the spring
to stop the filter (
2
).
t
Take the one-cup (
3
) or (
4
) filter and press it firmly
into the filter holder.
6.3.2 Spouts
Complete the filter holder by mounting the spout for
one cup (
5
) or two cups (
6
).
5
4
1
2
3
6
Properly connect the single filter with the single spout and the
double filter with the double spout.
Summary of Contents for 1GR Series
Page 67: ......
