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ADJUSTMENT STEP 3
Testthe SafetyReversalSystem
TEST
• With the door fully open, place a 1-1/2" (3.8 cm) board (or a
2x4 laid flat) on the floor, centered under the garagedoor.
• Operatethe 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. Increasethe DOWNlimit by
turning the DOWNlimit adjustment screw counterclockwise
1/4 turn.
NOTE:Ona sectional door, make sure limit adjustments do not
force the door arm beyond a straight up and down position. See
the illustration on page 25.
• Repeatthe test.
• When the door reverses on the 1-1/2" (3.8 cm) board, remove
the obstruction and run the opener through 3 or 4 complete
travel cyclesto test adjustment.
• If the unit continues to fail the Safety ReverseTest, call for a
trained door systems technician.
IMPORTANTSAFETYCHECK:
Test the Safety ReverseSystem after:
• Each adjustment of door arm length, limits, or force controls.
• Any repair to or adjustment of the garagedoor (including
springs and hardware).
• Any repair to or buckling of the garagefloor.
• Any repair to or adjustment of the opener.
Without a properly installed safety reversalsystem, persons
(particularly small children) could be SERIOUSLYINJUREDor
KILLEDby a closing garage door.
• Safety reversalsystem MUST betested 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
1-1/2" high (3.8 cm) object (or 2x4 laid flat) on the floor.
(or a 2x4 laid flat)
ADJUSTMENT STEP 4
Test The ProtectorSysterrP
• Press the remote control push button to open the door.
• Placethe 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 an inch (2.5 cm), and the opener
lights will flash.
The garage door openerwill 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 openerclosesthe doorwhen the safety reversingsensor
is obstructed(and the sensorsare no more than 6" (15 cm)
abovethe floor), call for a trained doorsystemstechnician.
Without a properly installed safety reversing sensor, persons
(particularly small children) could be SERIOUSLYINJUREDor
KILLEDby a closing garage door.
Safety Reversing Sensor Safety Reversing Sensor
29
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