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• Make sure that the lever trajectory doesn’t
intercept any body parts (especially face
parts).
• Make sure that no other operator is
standing nearby.
10.7) Adjusting the pre-infusion pressure
Turning the regulator knob clockwise will
increase the pressure.
Turning the regulator knob counterclockwise
will decrease the pressure.
NOTE:
the reducer is of “no relieving” type;
that means the reducer cannot relieve
the downstream circuit pressure. As a
consequence, just turning the reducer
counterclockwise will not result in a
pressure decrease; you also need to relieve
the excess pressure by opening a group.
Pre-infusion pressure
adjuster
Pre-infusion pressure
adjuster
We recommend that you never set any
pressures outside the 2÷4bar range.
10.8) Adjusting the spring preload
The spring system lies inside an adjustable
housing (1). A screw control allows to
increase or decrease the spring preload in
order to increase or decrease pressure.
To adjust the preload:
• Unscrew the lock nut using your hands
(2)
• Using a size-30 spanner, turn the housing
(1). Turn it clockwise to increase the
preload or counterclockwise to reduce it.
• Manually re-tighten the lock nut (2). This
lock nut must be tightened by hand with
strength and tightening must be checked
from time to time.
The marks (3) may be used as an
approximate indication of the pressure
value. The difference between two
consecutive
marks
corresponds
to
approximately 1bar.
To verify that the pressure has been
accurately regulated, brew a coffee and
read the pressure value on the group
pressure gauge/display.
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Summary of Contents for LEVA X
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