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execution of the project to which it refers, and from communicating it to third parties without Au
tomatic Systems’ prior written agreement. Document subject to change without notice.
BL5x-MT-EN-13
page
45/56
5.5.
Changing the arm model
Your barrier type BL52/BL53 has been factory-adjusted according to the arm boom mounted on it. Should
you decide at a later stage to mount an arm of a different length, follow the instructions below.
--
Make sure that the arm tube to be replaced is mechanically locked in its open position, and dismount it
(follow the inverted order of paragraphs 4.3 or 4.4). Make sure that the mechanism remains locked!
--
Mount the new arm referring to
paragraph [
4.3 or 4.4
. Installing the arm]
. At the end of the mounting
procedure, the barrier arm will be in the closed position.
--
Raise the arm with the crank (
1:11
) up to the vertical position. Continue turning the crank to make sure
that the mechanism is locked.
--
Make sure that the mechanism remains locked!
22:1
22:2
22:3
22:4
22:5
22:6
x
--
Loosen the lock nut (
22:1
) then the nut (
22:2
) to release the spring to the maximum.
--
Position the screw (
22:3
) and/or the lower axle (
22:4
) on the upper fixing points (
22:5
)
a
to
f
and lower
(
22:6
)
1
or
8
as illustrated in Fig. 22 and 23, referring to the tables on next page.
--
Tighten the nut (
22:2
) according to the distance "x" shown in the tables, depending on the new arm,
and lock it with the nut (
22:1
).
