30
B614
27
732998 - Rev.A_DRAFT
45°
!
Tr
ansla
tion of the original instruc
tions
ENGLISH
5.6 ACCESSORIES ON THE BEAM
!
The accessories on the beam must be considered when
choosing the balancer spring (single or double).
The accessories on the beam must be fitted before balanc-
ing the beam. If the accessories are added or removed
later it may be necessary to change the spring. After
a modification of the beam, it is necessary to balance
it again.
The spring appropriate for the configuration and length
of the beam is defined in the balancing charts (see
2
).
See § 10 for fitting accessories to the beam.
5.7 BALANCING THE BEAM
RISKS
PERSONAL PROTECTIVE EQUIPMENT
!
This phase requires the release of the barrier.
- Perform the release manoeuvre when there is no
electrical power.
- Keep away from the moving elements inside the box
and from the coil spires.
- Do not leave the beam vertical when the barrier is
unlocked.
See the specific instructions for balancing a jointed beam.
1. Perform the release manoeuvre and position the
beam horizontally.
!
Support the beam during the movement.
2. Leave the beam free: it is balanced when it rises
to 45°.
3. Make the adjustment, if necessary:
-
to raise the beam further, it is necessary to shorten
the tie rod
-
to lower the beam further, it is necessary to
lengthen the tie rod
4. Repeat the regulation until obtaining the balanc-
ing: the beam holds the position at 45°.
5. Restore the automatic operation.