17
TORQUE ADJUSTMENT THROUGH BY-PASS VALVES
(operating pressure for anti-crush safety)
PRELIMINARY NOTES:
- At the first installation the manual release is not yet mounted (Fig. 33 - 34), so after the by-pass valves
adjustments (Fig. 35 - 36) by using the
, it can be mounted as shown on pages 18
provided special key «
A
»
or 19, according to the release model.
- All the successive adjustments of the valves (eg. periodic maintenance) should be made by unscrewing the
by-pass cover only (Fig. 38). The pressure of the by-pass valves can be adjusted with the provided special
key «
A
» (installer equipment) (Fig. 39)
The opening and closing forces transmitted to the gate by the motor-pump assembly are regulated by
adjusting two by-pass valves; the grey valve adjusts the opening pressure while the yellow valve adjusts the
closing pressure. To increase the operating pressure turn valves clockwise; to decrease turn anti-clockwise
THE MAXIMUM THRUST FORCE DURING THE MOVEMENT, MEASURED AT THE LEADING EDGE OF THE
LEAF, IS SUBJECTED TO THE LAWS IN FORCE IN THE COUNTRY WHERE THE GATE IS INSTALLED
Grey
Yellow
+
-
+
-
NOTE:
Regulate the opening and closing
forces of the gate respecting the Laws in
force;
The thrust force however must not be
superior than 15 KgF
CAUTION:
The valves must be adjusted
in parallel, there must be no calibration
differences between them (ie. between
opening and closing).
Example: if you
adjust the gray valve by half a turn, then
the yellow valve must also be adjusted in
the same way
Grey (Opening)
Yellow (Closing)
NOT YET INSTALLED MANUAL RELEASE
A
Fig. 33
Fig. 35
MINI TANK - HALF TANK
Grey (Opening)
Yellow (Closing)
Fig. 34
FULL TANK
A
MINI TANK - HALF TANK
FULL TANK
Fig. 36
UNSCREW
AND
REMOVE
THE
BY
-
PASS
COVER
NOT
SUPPLIED
A
INSTALLED
MANUAL
RELEASE
REMOVE
THE
BY
-
PASS
COVER
TO
ADJUST
BY
-
PASS
VALVES
Fig. 39
Fig. 38
Fig. 37
BY-PASS VALVES
MINI TANK - HALF TANK - FULL TANK
