14
ADJUSTMENT OF THE BARRIER BEAM IN OPENING POSITION
(Pic. 24)
ADJUSTMENT OF THE LIMIT SWITCHES
Once the procedure on the stop positions of the
Bayt 980 barrier beam has been finished, it is possible
to adjust the opening and closing limit switches by
loosening the lock nuts of the adjustable ridged
feelers, which operate the flexible limit switch levers.
After having verified the correct operation of the
flexible lever (both in vertical and in horizontal
positions) on the limit switch micro-switch, it is
necessary to securely tighten the respective lock nuts
(Pic. 25).
1. Screw the opening limit switch feeler (a) tighter, so it is no loger operating.
2. Mechanical adjustment phase: position the beam at 45° and re-adjust by means of a screwdriver on the washer (b) posizioned
under the compression spring. Tighten the screw to the left to reduce the piston stroke (therefore the beam reaches the end of
the permitted open position earlier - vertical position); unscrew to the right to increase the piston stroke (therefore the beam
reaches the end of the permitted open position later - vertical position).
It is recommended that the limit vertical position is adjusted beyond 90°; in this way the limit switch feeler is caused to
operate before the very end of the permitted stroke.
3. Micro-switch adjustment phase: with the beam at 90° opening,
unscrew the opening limit switch feeler (a) until the micro-
switch snaps; after a command pulse to open has been given, tighten the respective M6 lock nut hard.
English
BAYT 980
Pic. 24
!
Important:
the adjustment of the Bayt 980 arm is factory pre-set. Make sure of the absolute necessity of changing it at
the time of the installation , and carry out some opening and closing operations before doing it.
!
!
Important:
at the moment of the first
running test at the factory, the position of
the two feelers is correctly adjusted in
accordance with the vertical and
horizontal positions of the barrier beam
in opening and closing respectively.
NOT
NOT
YES
a
b
a
b
c
10
11
Pic. 25
a. Flexible limit switch lever
b. Adjustable ridged feelers
c. M6 counter nut
oil-hydraulic barrier
Important:
with the barrier beam in an intermediate position at 45° and the piston rod therefore at its half stroke point,
it is possible to adjust the barrier beam in the open position. Do not adjust with the barrier beam in the vertical or
horizontal stop positions (Pic. 24).
