Operation Description; Operation Of Barrier; Description Of Parts - Chamberlain LiftMaster BARS1 Mode D'emploi

5

Operation description

5.1

Operation of barrier

Barriers are available in models Right / Left. The casing is made of welded sheet steel (apart from
specific models) and is powder coated against corrosion. The drive unit and control are integrated
into the casing and accessible by lifting off the hood and opening the service door.
The drive motor is powered by the control and is fed by line voltage. Force and rotary motion are
transferred by a leverage system.
This leverage mechanism is defined ex works by a slow deceleration in both directions in case of
quick movement of barrier.
The effective force is limited through the applied capacitor and is defined ex works.
An incorporated sensor reverses the barrier in the direction OPEN if an obstacle should be hit.
The maximum run time of the motor as well as the opening time of the barrier are determined by
the drive in use and the time setting on the control (1-3-6 seconds).
5.2

Description of parts

1. Slot for emergency release key
2a. End stop screw OPEN
2b. End stop screw CLOSE
3. Intermediate lever
4. Spring setting
5. Barrier pole bracket
6. Tilting lever Hole 1
7. Tilting lever Hole 2
8. Spring casing
9. Spring
10. Sensor
11. Motor
5
2a
6
7
8
9
4
12/40
Notes
2b
1
3
11
10