LiftMaster ATSW Mode D'emploi page 20

Install the Protector System
1 Assemble and Mount the Brackets
Screw
#10-32x3/8"
Lag Screw
1/4"x1-1/2"
The following instructions show recommended assembly of the bracket(s) and "C" wrap based on the wall installation
of the safety reversing sensors on each side of the door or on the door tracks themselves. There are also alternate
mounting methods which may fit your installation requirements better. Make sure the wraps and brackets are
aligned so the safety reversing sensors will face each other across the door. Mount sensors no more than
6" (15 cm) above the floor and at a width between 7'-30' (2.1 m - 9.1 m).
Fasten the "C" wraps to the mounting brackets having square holes, using hardware shown.
#10-32 Lock Nuts
Mounting Bracket with Square Holes
DOOR TRACK INSTALLATION
Discard slotted bracket. Drill 3/8" holes in each track and fasten securely with hardware . Do not exceed 6" (15 cm)
above the floor. NOTE: Ensure the door track does not vibrate when the door is in motion. Excessive vibration can
create nuisance reversals.
Door Track
Drill 3/8" Holes
1/4-20x1/2"
Carriage Bolts
®
HARDWARE
Lock Nut
Lock Nut
1/4"-20
#10-32
Carriage Bolt
1/4"-20 x 1/2"
"C" Wrap
#10-32x3/8" Screws
1/4" Lock Nuts
Inside Wall
"C" Wrap
Mounting Bracket
with Square Holes
WALL INSTALLATION
1. Connect each assembly to a slotted bracket, using the hardware shown. Note alignment of brackets for
left and right sides of the door.
2. Finger tighten the lock nuts
3. Use bracket mounting holes as a template to locate and drill (2) 3/16" diameter pilot holes on both sides of
the door, 4-6" (10-15 cm) above the floor. Do not exceed 6" (15 cm).
4. Attach bracket assemblies with 1/4"x1-1/2" lag screws.
5. Adjust right and left side bracket assemblies to the same distance out from mounting surface. Make sure all
door hardware obstructions are cleared. Tighten the nuts securely.
6. Center each sensor in the bracket with the lenses pointing toward each other across the door.
7. Attach the sensors to the brackets with the provided hardware. Finger tighten the receiving sensor wing
nut. Securely tighten the sending sensor wing nut.
1/4"x1-1/2" Lag Screws
Inside Wall
Mounting Bracket
1/4"-20 Lock Nuts
with Slot
Mounting Bracket
Inside
with Slot
Wall
Mounting Bracket
with Square Holes
"C" Wrap
Floor
Alternate Wall Mount
20
1/4"-20x1/2" Carriage Bolts
(with square shoulders)
"C" Wrap
Mounting Bracket with Square Holes
Sensor with wire
Inside
Indicator Light
Wall
Sensor
with wire
"C" Wrap
Indicator
Light
Floor
Alternate Floor Mount
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Attach with
concrete
anchors
(not provided)