Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
ON THE SIDE OF THE UNIT THERE ARE 2 SCREWS.
THIS IS A VERY FINE ADJUSTMENT TURN ABOUT 1/4 TURN AT A TIME AND RUN THE DOOR.
OPEN YOU WANT EVEN WITH HEADER CLOSE YOU WANT AS TIGHT TO THE FLOOR AS IT WILL GO WITHOUT REVERSING-THIS HELPS IT SENSE ANY OBSTRUCTION THAT MAY BE THERE. (BICYCLE, CAT ETC,)
HOPE THIS HELPS
Posted on May 27, 2010
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Posted on Jan 02, 2017
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Jul 12, 2011 | Sears Craftsman LiftMaster Chamberlain...
May 19, 2011 | Sears Craftsman LiftMaster Chamberlain...
force adjustments control the pressure used to open and close the
door. A new garage door opener from the factory is set to the lowest
possible force adjustment. If you have a properly balanced door, the
forces required to open and close the door should be minimal.
force adjustments are usually located on the rear of the garage door
opener and/or under one of the light lenses, If your opener has two
lights. If you have lights on the side of your opener, the force
adjustment will be located under the right light lens. The force
adjustments are labeled with an arrow indicating open or close and
numbered 1 to 9, with one being the lowest force and nine the
highest. The force adjustments can only turn 260 degrees, or ¾ of a
complete turn. Changes to the forces should be done in 10-degree
increments. Please remember that too much force will interfere with
the proper operation of the safety reversal system. Do not increase
the force beyond the minimum required to close the door. Do not use
the force adjustments to compensate for a sticking, binding, or
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