Chamberlain 1270LMC - Manual (Page 18)

1/4x1-1/2"
Lag Screw
#10-32x3/8"
Screw
1/4"-20
Lock Nut
#10x32
Lock Nut Staples
1/4"-20x1/2"
Carriage Bolts
Installation Step 10
Install the Safety Reversing Sensor
Mounting Bracket
With Square Holes
#10-32x3/8"
Screws
"C" Wrap
#10-32
Lock Nuts
Garage WALL or DOOR TRACK Installation
Figures 2, 3 and 4 show recommended assembly of
bracket(s) and "C" wrap based on the
wall install
ation of the sensors on each side of the garage door
as shown on page 17, or on the
garage door tracks
themselves.
Figures 5 and 6 are variations which may fit your
installation requirements better. Make sure the
wraps and brackets are aligned so the sensors
will face each other across the garage door.
For Garage Wall or Door Track Installation
• Fasten the "C" wraps to the mounting brackets
having square holes, using the hardware shown in
Figure 2.
For Door Track Installation Only
• Discard slotted bracket. Drill 3/8" holes in each
track and fasten securely with hardware as shown
in Figure 3.
For Wall Installation
• Connect each assembly to a slotted bracket, using
the hardware shown in Figure 4. Note 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" above the floor (but not
exceeding 6"). See warning on page 17.
• Attach bracket assemblies with 1/4"x1-1/2"
lag screws as shown in Figure 4.
• 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.
18
Hardware Shown Actual Size
Inside
Garage
Wall
"C" Wrap
Mounting Bracket
with Square Holes
1/4"-20x1/2"
Carriage Bolts
1/4"-20 Lock Nuts
Drill 3/8"
Holes
Garage
Door Track
Garage DOOR Track Installation
Mounting Bracket
with Slot
1/4"-20
Lock Nuts
1/4x1-1/2"
Lag Screws
1/4-20x1/2" Carriage Bolts
(with square shoulder)
Inside
Garage
Wall
"C" Wrap
Mounting Bracket
with Square Holes
Garage WALL Installation
"C" Wrap
Inside
Garage
Wall
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Alternate Wall Mount
Sensor
Garage
Floor
Indicator Light
Garage
Floor
Inside
Garage
Wall
Alternate Floor Mount
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
"C" Wrap
Sensor
Indicator
Light
Attach with
concrete anchors
(not provided)
Figure 2
Figure 3
Figure 4
Figure 6 Figure 5