Safety Reversing Sensor Information - Craftsman 139.53491SRT Owner's Manual

The Safety Reversing Sensor
Information you'll need before you begin the installation of the safety reversing sensor
The safety reversing sensor must be connected and
aligned correctly before the garage door opener will
move in the down direction. This is a required safety
device and cannot be disabled.
Installation procedures are the same Jbr sectional and
one-piece doors.
Be sure power to the opener is disconnected.
The sending eye transmits an invisible light beam to the
receiving eye. The units can be installed on either side of
the garage door as long as the sun never shines directly
into the receiving eye lens.
Look at the label on the connector end of each case to
identify the sensors.
The brackets must be connected and fastened so that the
sending and receiving eyes face each other as shown.
If an obstruction breaks the light beam while the garage
door is closing, the door will stop and reverse to full open
position and the opener lights will flash for 5 seconds.
The brackets must be securely fastened to a solid surface
such as the studs on either side of the door, or add a piece
of wood at each location if installing in masonry
construction.
Without a proper/y working safety reversing sensor,
persons(particu/ar/ychildren)cou/d be injuredor ki//ed
by a c/osing garage door. Read and follow all
instructions.
To protect small children, install the safety reversing
sensor so that the beamwill be no higher than 4"-6"
abovethegaragefloor.
Disconnect power to the garage door opener before
installingthe safetyreversingsensor.
The invisible light beam path must be unobstructed. No
part of the garage door (or door tracks, springs, hinges,
rollers or other hardware) can interrupt the beam while
the door is closing. If it does, use a piece of wood to build
out each sensor mounting location to the minimum depth
required for light beam clearance.
//
Sensor
| / Beam
I/4-6"
max.
i_ above floor
Facing the door from inside the garage
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