Test The Safety Reversal System; Test The Protector System - Merik 411M Manual Del Proprietário

ADJUSTMENT STEP 3

Test the Safety Reversal System

TEST
1. With the door fully open, place a 38 mm obstacle
on the floor, centered under the garage door.
2. 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 27.
• Repeat the test.
• When the door reverses on the 38 mm obstacle,
remove the obstruction and run the opener through
3 or 4 complete travel cycles to test adjustment.
IMPORTANT SAFETY CHECK:
Repeat Adjustment Steps 1, 2 and 3 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 Protector System ®
1. Press the remote control push button to open the
door.
2. Place the opener carton in the path of the door.
3. Press the remote control push button to close the
door. The door will not move more than an inch,
and the opener lights will flash.
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 15 cm above the floor), call for a
trained door systems technician.
Without a properly installed safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing door or
gate.
• 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 38 mm obstacle on the floor. Gate MUST
reverse on contact with 38 mm obstacle at the closing
edge.
SECTIONAL DOOR
38 mm Obstacle
Without a properly installed safety reversing sensor,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
Safety Reversing Sensor
31
ONE-PIECE DOOR
38 mm Obstacle
Safety Reversing Sensor