Craftsman 139.535006 - Manual (Page 20)

Adjustment
STEFS
Test Safety Reverse System
THE SAFETY REVERSE SYSTEM TEST IS IMPORTANT. THE GARAGE DOOR MUSTREVERSE ON CONTACT
WITH AONE INCH OBSTACLE PLACEDON THE FLOOR. FAILURETO PROPERLY ADJUSTTHE OPENER MAY
RESULT IN SERIOUS PERSONAL INJURY FROM ACLOSING GARAGE DOOR. REPEATTHE TEST AT LEAST
ONCE A YEAR AND MAKE ANY NEEDED ADJUSTMENTS,
PROCEDURE: Place a 1-inch obsiacle on the floor under the garage door. Operate the door in the DOWN
direction. The door must reverse on the obstruction.
If a SECTIONAL door STOPS on the obstruction,
lenghthen door arm (Step 10, Page 16) until the door
reverses in DOWN direction,.
If a ONE-PIECE door stops on obstruction, door is
not traveling far enough in DOWN direction. Increase
the DOWN limit by turning the DOWN limit adjust­
ment screw counter-clockwise 1/4 turn REPEATTEST.
When the door reverses on the 1-inch obstruction,
remove obstruction and run opener through a com­
plete travel cycle, Door must not reverse in closed
position, if it does, repeat Adjustment Steps 2 and 3.
SECTIONAL DOOR
;
REPEAT ADJUSTMENT STEP 3 AFTER:
1. EACH ADJUSTMENT OF DOOR ARM LENGTH, CLOSE FORCE OR DOWN LIMIT
2. ANY REPAIR OR ADJUSTMENT OF THE GARAGE DOOR (INCLUDING SPRINGS AND HARDWARE)
3. ANY REPAIR OR BUCKLING OF THE GARAGE FLOOR
4,. ANY REPAIR OR ADJUSTMENT OF THE GARAGE DOOR OPENER
(Optional)
STEP 4
Install Infrared Reversing System
The INFRARED REVERSING SENSOR provides an
ADDITIONAL
measure of safety against small child­
ren being caughtunderagarage door, It uses an invis­
ible beam which, when broken by an obstruction,
causes a closing door to open or prevents an open
door from closing
After the garage door opener has been completely
installed and adjusted, the INFRARED REVERSING
SENSOR accessory can be installed. Instructions are
included with this optional device
CAUTION: The Infrared Reversing Sensor will not
be in effect when Vacation Light is ON.
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