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23
Adjustments
2 Test the Safety Reversal System
Withouta properly installed safetyreversal system, persons (particularly small children) could be
SERIOUSLY INJUREDor KILLED by a closing garage door.
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Safety reversal system MUSTbe tested every month.
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After ANY adjustments are made, the safetyreversal system MUST be tested.Door MUST
reverse on contact with 1-1/2" (3.8 cm) high object(or 2x4 laid flat) on the floor.
1. With the door fully open, place a 1-1/2 inch (3.8 cm) board (or a 2x4 laid flat) on the floor,
centered under the garage door.
2. Press the remote control push button to close the door. The door MUSTreverse when it makes
contact with the board.
If the door stopsand does notreverse on the obstruction, increase the down travel (refer to Adjustment
Step 1). Repeat the test. When the door reverses upon contact with the 1-1/2 inch board, remove the
board and open/close the door 3 or 4 timesto test the adjustment. Ifthe garage door opener continues to
fail the safetyreversal test, call a trained door systems technician.
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3 Test the Protector System
®
Withouta properly installed safetyreversing sensor, persons (particularlysmall children) could be
SERIOUSLY INJURED or KILLED by a closing garage door.
1. Open the door. Place the garage door opener carton in the path ofthe door.
2. Press the remote control push button to close the door. The door will notmove more than an
inch (2.5 cm), and the garage door opener lights will flash 10 times.
The garage door opener will not close from a remote control if the LEDin either safetyreversing sensor
is off (alerting you to the fact that the sensor is misaligned or obstructed).If the garage door opener
closes the door when the safetyreversing sensor is obstructed (and the sensors are no more than
6inches[15 cm] above the floor), call for a trained door systems technician.
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