La Marzocco leva 1 group, Manual

Page: 12 / 60

EN
12
8) Adjusting volumetric pump pressure.
The volumetric pump is factory set at 3
bar pressure. If it becomes necessary
to change the pressure please use the
following procedure:
1. Remove the back panel.
2. Locate the water pump adjustment
screw and loosen the lock nut.
3. Adjust the volumetric pump pressure
to the desired measurement, looking
at the relative pressure gauge.
4. Rotate clockwise to increase pressure
and counter-clockwise to reduce
pressure.
NOTE:
The volumetric pump pressure
should be adjusted when the machine
is operating and coffee is present in the
portafilter.
Figure 3 - Water Pump Pressure Adjustment
Lock nut
Adjustment
screw
Pressure gauge