Chamberlain B4603TC Installation Manual page 25

Installation
STEP 12 Install the Protector System (continued)
WALL OPTION
Make sure the brackets on each side are clear of the door track and have the same amount of clearance so
the sensors will align correctly. If additional clearance is needed, use extension brackets 041A5281-1 (not
provided) or wood blocks.
Attach the sensor bracket against the wall with two lag screws (not provided).
1.
Slide the hex screw through the sensor.
2.
Attach the sensor to the bracket with the wing nut. Make sure the lens is not obstructed by
3.
the bracket.
Repeat the steps with the other sensor on the opposite side of the garage door. Both lenses must face each
other.
1
Inside
garage wall
Door track
Not provided
2
OPTIONAL
OR
3
FLOOR OPTION
Measure the position of both sensor brackets so they will be the same distance from the wall
1.
and unobstructed.
Attach the bracket to the floor with concrete anchors (not provided).
2.
Slide the hex screw through the sensor.
3.
Attach the sensor to the bracket with the wing nut. Make sure the lens is not obstructed by
4.
the bracket.
Repeat the steps with the other sensor on the opposite side of the garage door. Both lenses must face each
other.
1
Door track
3
Wing Nut
6" (15 cm)
max.
25
Inside
2
garage wall
4
6" (15 cm) max.
Not
provided
Wingnut