8
Choosing the spring and anchoring orifice
The balancing spring and its anchoring orifice depend
on the length (L) of the barrier arm:
ULS3EC Barriers:
•
Arm 2.0m < L < 3.0m:
spring D= 4.5mm, orifice 1
•
Arm 1.5m < L < 2.0m:
spring D= 4.5mm: orifice 2
ULS45EC Barriers:
•
Arm 2.5m < L < 4.0m:
spring D= 5.5mm, orifice 2
•
Arm 4.0m < L < 4.5m:
spring D= 6.5mm: orifice 2
ULS6EC Barriers:
•
Arm 4.5 m < L < 6.0 m:
2 springs D = 6.5 mm, orifice 2
AUL03/AUL04/AUL08 rubber band and/or AUL05/
AUL06/AUL09 LED strip can be used indistinctly.
Using other accessories may influence the choice of
spring and orifice.
If the spring or anchoring orifice needs to be
changed, do it before installing the barrier and
the arm.
P289L
2
1
P289C1
Arm assembly
Choose the barrier in accordance with the assembly
side and length of the arm:
ULS6ECD: right, 100x45mm, 6m;
ULS45ECD: right, 100x45mm, 4.5m;
ULS3ECD: right, 80x45mm, 3m;
ULS6ECI: left, 100x45mm, 6m;
ULS45ECI: left, 100x45mm, 4.5m;
ULS3ECI: left, 80x45mm, 3m.
Lock the operator and mount the arm.
Changing the anchoring orifice
+
–
P289J
M
1
2
S
V
1
Place the barrier arm in
upright position.
2
Turn the tensioning handle
(M) anti-clockwise until the
spring is tensionless.
3
Release the anchor bolt (1)
and mount it in the other
orifice.
4
Balance the barrier as
described below.
Changing the spring
1
Place the arm in upright position.
2
Turn the tensioning handle (M) anti-
clockwise until the spring is tensionless.
3
Release the anchor bolt (1).
4
Take down the spring box (S), releasing
the pivot (V).
5
Completely unscrew the tensioning
handle, remove the spring and position
the new spring in place. Finally, screw the
tensioning handle.
6
Mount the spring box (S), inserting the
pivot (V).
7
Secure the anchor bolt in the appropriate
orifice, (1) or (2).
8
Balance the barrier as described below.
If the spring or anchoring orifice needs to be changed, do
it before installing the barrier and the arm.
The illustrations and explanations refer to ULS3C, ULS45EC barriers, which have a single
balancing spring. The procedure for ULS6EC barriers is similar, bearing in mind that the
spring and its adjacent elements are duplicated.
