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BL5x-MT-EN-13
page
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4.7.
Levelling the barrier arm
4.7.1. Horizontal position "closed"
The barrier is closed (arm horizontal) if the three conditions below are fulfilled:
1. the motor is stopped;
2. the closing limit switch is activated;
3. the steel plate of the crankshaft is flush (without any pressure) with the screw of the closing abutment
(
12:4
).
x
z
11:1
11:1
11:2
y
(Arm horizontal)
If necessary, adjust the arm level as follows:
12:2
12:1
12:3
12:4
--
Make sure that the arm is perfectly aligned with the arm bracket (
1:4
) or (
1:5
).
--
Loosen the nuts (
12:1
) and (
12:2
).
Note
;
The nut (
12:1
) have a left-handed thread and the nut (
12:2
) a right-handed thread.
--
Rotate the rod (
12:3
) clockwise to raise the arm, counter-clockwise to lower it.
--
While holding the rod strongly, tighten the nuts (
12:1
) and (
12:2
) firmly again.
