U
M
SER
ANUAL
• The first rule to follow is to sit down correctly covering the whole depth of
the seat, leaning well and uniformly your back on the backrest, and regulate
the height of the seat in such a way that your legs are at a 90° angle. To do so,
move upwards the upper lever placed on the right side of the seat (1).
• Then, adjust the height of the lumbar support in order to find the best
regulation of the back.
While sat, lift and let down, at the desired position (2), the two knobs of the
lumbar support placed on the sides of the backrest.
• The button on the lever placed on the right side of the seat side allows you
disable the synchronised oscillation of the seat and of the backrest or to lock
them at the desired position.
To obtain a free oscillation, press the button; to lock the armchair at a definite
position press again the button (1).
N.B.: since the armchair is furnished with an anti-shock security device, to
free the oscillation, decrease the pressure on the backrest by leaning yourself
a bit forward. Only after doing so, you can push the lever downwards and lean
again against the backrest. This movement will unlock the anti-shock device.
• The intensity of the oscillation can be regulated depending on the weight of
the user by moving the knob which is situated on the lower right part of the
armchair (3).
To obtain a hardening of the oscillation mechanism, turn the knob clock-wise
and vice-versa.