30
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 1-1/2" (3.8 cm) high object (or 2x4 laid
flat) on the floor.
ADJUSTMENT STEP 3
Test the Safety Reversal System
TEST
• With the door fully open, place a 1-1/2" (3.8 cm)
b
oard (or a 2x4 laid flat) on the floor, centered
under the garage door.
• Operate the door in the down direction. The door
must
re
v
erse on striking the o
b
struction.
ADJUST
• If the door stops on the o
b
struction, it is not
tra
v
eling far enough in the down direction.
Increase the DOWN limit
b
y 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 26.
• Repeat the test.
• When the door re
v
erses on the 1-1/2" (3.8 cm)
b
oard, remo
v
e the o
b
struction and run the opener
through 3 or 4 complete tra
v
el 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
b
uckling of the garage floor.
• Any repair to or adjustment of the opener.
ADJUSTMENT STEP 4
Test the Protector System
®
• Press the remote control push
b
utton to open the
door.
• Place the opener carton in the path of the door.
• Press the remote control push
b
utton to close the
door. The door will not mo
v
e 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
o
b
structed).
If the opener closes the door when the safety
reversing sensor is obstructed (and the sensors
are no more than 6" (15 cm) above the floor), call
for a trained door systems technician.
Safety Reversing Sensor
Safety Reversing Sensor
Without a properly installed safety reversing sensor,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
1-1/2" (3.
8
cm) board
(or a 2x4 laid flat)
WARNING
CAUTION
WARNING
WARNING
WARNING
CAUTION
WARNING
WARNING
