10
c
d
f
e
a
b
The 422 operator has an anti-crushing safety device which
limits the operator’s force if an obstacle is encountered while
the gate is moving.
To adjust the intervention threshold of the anti-crushing system,
turn the By-Pass screws, that are accessible under the manual
release cover.
Lift the protective plug (Fig. 14, ref
a
) and insert the supplied
key (Fig. 14, ref
b
). Turn it 90°clockwise to unlock the cover.
Fig. 15
Fig. 14
Lift up the cover (Fig. 15)
Unscrew the screw that secures the knob (Fig. 15, ref
c
), and
pull out the knob (Fig. 14, ref
d
).
Turn the pressure adjustment screws (By-Pass) (Fig. 15, ref
e
and
f
) on the operator.
OPEN screw (green) : gate opening direction.
CLOSE screw (red) : gate closing direction.
(the opposite applies in case of outwards opening)
To reduce pressure, turn the screws counterclockwise.
To increase pressure, turn the screws clockwise.
When the adjustment is complete, re-position the knob (Fig. 15,
ref
d
) and tight the screw (Fig. 15, ref
c
).
Close the cover and lock it by turning the key counterclockwise.
3. MANUAL OPERATION
If the gate has to be moved manually due to a power outage
or other failures, use the release device as follows:
- Lift the protective plug (Fig. 16, ref
a
) and insert the supplied
key (Fig. 16, ref
b
). Turn it 90° clockwise to unlock the cover.
- Lift up the cover (Fig. 16 ref
c
).
- Turn the release knob counterclockwise for about two turns
(Fig. 16, ref
d
).
- Open or close the leaf manually.
Restoring Normal Operation Mode
- To re-lock the operator, turn the release knob clockwise until it
stops (Fig. 16, ref
d
).
- Close the cover and turn the key 90° counterclockwise (Fig. 16,
ref
b
).
- Finally, remove the key and close the protective plug
(Fig. 16, ref
a
).
d
a
b
c
UNLOCK
LOCK
Fig. 16
2.5. BY-PASS VALVES ADJUSTMENT
