Test the Safety Reverse System, Adjust

ADJUSTMENT STEP 3

Test the Safety Reverse System

TEST

•With the door fully open, place a 40mm board on the floor, centered under the garage door.

•Operate the door in the down direction. The door must reverse on striking the obstruction.

ADJUST

•If the door stops on the obstruction, it is not traveling far enough in the down direction. Increase the DOWN limit by turning the DOWN limit adjustment screw counterclockwise 1/4 turn. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down position. See the illustration on page 23.

•Repeat the test.

•When the door reverses on the 40mm board, remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment.

If the door will not reverse on the board after repeated adjustment attempts, call for professional B&D garage door service.

IMPORTANT SAFETY CHECK:

Repeat Adjustment Steps 1, 2 and 4 after:

•Each adjustment of door arm length, limits, or force controls.

•Any repair to or adjustment of the garage door (including springs and hardware).

•Any repair to or buckling of the garage floor.

•Any repair to or adjustment of the opener.

ADJUSTMENT STEP 4

Test the Safety Infrared Reversing Sensors (if installed)

•Press the remote control push button to open the door.

•Place the opener carton in the path of the door.

•Press the remote control push button to close the door. The door will not move more than 25mm, and the door control will blink 10 times.

The garage door opener will not close from a remote if the indicator light in either sensor is off (alerting you to the fact that the sensor is misaligned or obstructed).

If the opener closes the door when the safety reversing sensor is obstructed (and the sensors are no more than 150mm above the floor), call for professional B&D garage door service.

WARNING

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

•Safety reversal system MUST be tested every month.

•If one control (force or travel limits) is adjusted, the other control may also need adjustment.

•After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 40mm high object on the floor.

40mm board laid flat

WARNING

Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

The force, as measured on the closing edge ot the door, should not exceed 400N (40kg). If the closing force is more than 400N, the Safety Infrared Reversing Sensor must be installed. Do not use the force setting procedure to compensate for a binding or sticking garage door. Excessive force will interfere with the proper operation of the Safety Reverse System or damage the garage door.

Safety Reversing Sensor

114A2845

1155, 1156, 1140, 1150, 80ad specifications

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Chamberlain 1156, 1160, 80ad, 1150 Test the Safety Reverse System, Adjust, Important Safety Check

Models: 1155 1156 1140 1150 80ad 1145jg 1145 120ad 1146 1160 1160jg