LiftMaster MGJ Installation Manual - Page 17

Install The Photoelectric Sensors, Door Track Installation

Page 17 highlights

ENTRAPMENT PROTECTION INSTALL THE PHOTOELECTRIC SENSORS The following instructions show recommended assembly of the bracket(s) and "C" wrap based on the wall installation of the photoelectric 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 photoelectric sensors will face each other across the door. 1 Fasten the "C" wraps to the mounting brackets having square holes, using hardware shown. Mounting Bracket with Square Holes "C" Wrap #10-32 Lock Nuts WALL INSTALLATION 2 Connect each assembly to a slotted bracket, using the hardware shown. Note alignment of brackets for left and right sides of the door. 3 Finger tighten the lock nuts. 4 Use bracket mounting holes as a template to locate and drill (2) 3/16" diameter pilot holes on both sides of the garage door, 4-6 inches (10-15 cm) above the floor. Do not exceed 6 inches (15 cm). 5 Attach bracket assemblies with 1/4"x1-1/2" lag screws. 6 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. Inside Wall 1/4"x1-1/2" Lag Screws 1/4"-20x1/2" Carriage Bolts (with square shoulders) DOOR TRACK INSTALLATION #10-32x3/8" Screws 2 Discard slotted bracket. Drill 3/8" holes in each track and fasten securely with hardware. Door Track Inside Wall 1/4" Lock Nuts Drill 3/8" Holes 1/4"-20x1/2" Carriage Bolts "C" Wrap Mounting Bracket with Square Holes 1/4"-20 Lock Nuts Mounting Bracket "C" Wrap with Slot Mounting Bracket with Square Holes ALTERNATE WALL INSTALLATION Inside Wall Mounting Bracket with Slot Mounting Bracket with Square Holes "C" Wrap Sensor with Wire - Floor - Indicator Light ALTERNATE FLOOR INSTALLATION Inside Wall Sensor with Wire Indicator Light Mounting Bracket with Square Holes "C" Wrap - Floor - Mounting Bracket with Slot Attach with Concrete Anchors (Not Provided) 17

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28

17
Mounting Bracket
with Square Holes
“C” Wrap
#10-32x3/8"
Screws
#10-32
Lock Nuts
ENTRAPMENT PROTECTION
WALL INSTALLATION
2
3
4
5
Connect each assembly to a slotted bracket, using the
hardware shown. N
ote alignment of brackets for left and
right sides of the door.
Finger tighten the lock nuts.
Use bracket mounting holes as a template to locate and drill
(2) 3/16" diameter pilot holes on both sides of the garage
door, 4-6 inches (10-15 cm) above the floor. Do not exceed
6 inches (15 cm).
Attach bracket assemblies with 1/4"x1-1/2" lag screws.
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
ALTERNATE WALL INSTALLATION
ALTERNATE FLOOR INSTALLATION
2
Discard slotted bracket. Drill 3/8" holes in each track and
fasten securely with hardware.
DOOR TRACK INSTALLATION
1/4"x1-1/2"
Lag Screws
1/4"-20x1/2" Carriage Bolts
(with square shoulders)
1/4"-20
Lock Nuts
Inside
Wall
Mounting Bracket
with Slot
Mounting Bracket with
Square Holes
“C” Wrap
Mounting Bracket with Slot
Mounting Bracket with Square Holes
“C” Wrap
Sensor with Wire
Indicator Light
- Floor -
Inside
Wall
Inside
Wall
“C” Wrap
Mounting Bracket with
Square Holes
1/4" Lock Nuts
Door Track
Drill 3/8" Holes
1/4"-20x1/2"
Carriage Bolts
Sensor with Wire
Inside
Wall
Indicator Light
Mounting Bracket with
Square Holes
Mounting Bracket with Slot
“C” Wrap
- Floor -
Attach with Concrete Anchors
(Not Provided)
INSTALL THE PHOTOELECTRIC SENSORS
The following instructions show recommended assembly of the bracket(s) and “C” wrap based on the wall installation of the
photoelectric 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 photoelectric sensors will face each other across the door.
Fasten the “C” wraps to the mounting brackets having square
holes, using hardware shown.
1