11
PART. C
PART. A
Adjusting limit switches and rubber stoppers
Adjusting the spring tension:
90
30
Adjust the rubber stoppers
and the switches so that the
arm is horizontal when in
closed position and vertical
when in open position.
After having installed the arm on the barrier is mandatory to adjust the spring tension :
1.Unlock the reducer
2.Set the arm in the opening position
3.Lock the reducer
4.Turning the tensioning nut, tension the spring until obtaining the best setting
Verification of the best setting :
1.Unlock the reducer
2.Carefully bring the arm in the closed position
3.Release the arm
4.If the spring is tensioned correctly the arm should open and stop at about 30° degree
The spring should be tensioned
during the entire travel of the arm
without any play
The spring tensioning should be
checked after 15 days from the
installation
FIG.10
FIG.11
