Craftsman 139.30437 Manual Del Propietário página 30

ADJUSTMENT STEP 2
Test the SafetyReversa/ System
TEST
1. 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 garage door.
2. 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. Complete Adjustment Step 1.
NOTE:On a sectional door, make sure limit adjustments do not
force the door arm beyond a straight up and down position.
SeeFigure 3, page 20.
* Repeatthe test.
* When the door reverses on the 1-1/2" (3.8 cm) board (or 2x4
laid flat), remove the obstruction and run the opener through
3 or 4 complete travel cycles to 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 garage door
(including springs and hardware).
* Any repair to or buckling of the garage floor.
* Any repair to or adjustment of the opener.
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLYINJUREDor
KILLEDby a closing garage door.
* Safety reversal system MUST be tested every month.
* 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.
1
E ]
_" 1-1/2" (3.8 cm) board
(or a 2x4 laid flat)
ADJUSTMENT STEP 3
Test The ProtectorSystem ®
1. Press the remote control push button to open the door.
2. Placethe 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 (2.5 cm), and the opener
lights will flash.
The garage door opener wiii 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 closesthe door when the safety reversingsensor
is obstructed (and the sensorsare no more than 6" (15 cm)
above the floor), call for a trained door systems technician.
Without a properly installed safety reversing sensor, persons
(particularly small children) could be SERIOUSLYINJUREDor
KILLED by a closing garage door.
Safety Reversing Sensor Safety Reversing Sensor
3O