Adjustments And Technical Interventions; Arm Balance Adjustment - Ier Automatic Systems BL52 Operating Manual

5.

ADJUSTMENTS AND TECHNICAL INTERVENTIONS

Before any operation, refer to the "safety warnings", p4.
5.1.

Arm balance adjustment


The power needed to set the mechanism in motion is minimal due to the built-in compression spring. To
operate properly, the tension of the spring must be correctly adjusted, i.e. the strength needed to activate
the mechanism must be equal in either direction. If necessary, proceed with the adjustment as follows:
-- Insert the crank handle (1:11) into the crank hole (1:10) and turn it in either direction to unlock the arm
and bring it to an angle of approx. 20°.
-- Uncouple the torque limiter by loosening the 8 lock nuts (18:1) and the 8 screws (18:2) without
removing them.
-- Move the barrier arm manually to an angle of 45°.
a) If the arm moves downwards:

Loosen the lock nut (15:1).

Tighten the nut (15:2) smoothly to compress the spring harder and position the arm at 45°.

When the desired result is obtained, tighten the nut (15:1) again to block the nut (15:2).
b) If the arm moves upwards:

Loosen the lock nut (15:1).

Loosen the nut (15:2) smoothly to release the compression spring and position the arm at 45°.

When the desired result is obtained, tighten the nut (15:1) again to block the nut (15:2).

Check the V-belt following the instructions of paragraph [5.2 Belt tension adjustment], then adjust the safety
clutch referring to paragraph [5.3 Safety torque limiter adjustment].
The information contained in this document is the property of Automatic Systems and is confidential. The recipient shall refrain from using it for any purpose other than the use of the products or the
execution of the project to which it refers, and from communicating it to third parties without Automatic Systems' prior written agreement. Document subject to change without notice.
BL5x-MT-EN-13
15:1
15:2
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