Install The Safety Reversing Sensor - Craftsman 139.53525SRT Owner's Manual

Installation Step 10
install the Safety Reversing Sensor
Figures 2 and 3 show assembly of brackets and
"C" wrap based on the recommended installation of
the sensors as shown on page 21.
However, Figures 4 and 5 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.
• Fasten the "C" wraps to the mounting brackets
having square holes, using the hardware shown
in Figure 2.
• Connect each assembly to a slotted bracket, using
the hardware shown in Figure 3.
Note the alignment of the 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 21 .)
• Attach bracket assemblies with 1/4"x1-1/2" lag
screws as shown in Figure 3.
• Adjust right and left side bracket assemblies to the
same distance out from the mounting surface.
Make sure all door hardware obstructions are
cleared. Tighten the nuts securely.
Figure 2
Mounting Bracket
With Square Holes
/
"C" Wrap
#10-32
Lock Nuts
#10-32x3/8"
Screws
Figure 3
Inside
Garage --
Wa
1/4x1-1/2"
Lag Screws
1/4-20xl/2" Carriage Bolts
(with square shoulder)
g Bracket
,vith Slot
/1/4 _ Mounting Bracket
20 _otes
/ %
// Lock Nuts
"C" Wrap
©
#10-32x3/8" #10x32
Screw Lock Nut
Hardware Shown Actual Size
_ I I I I I I I Ill/[Ix!_11!I,I I I I I I I_'_
Lag Screw Staples
1/4"-20x 1/2"
Carriage Botts
©
1/4"-20
Lock Nut
Alternate Wall Mount
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
Sensor
Indicator Light
Garage
Ftoor
Figure 5
Alternate Floor Mount
Inside
Garage I
Wail sensor Indicator Light
Mounting Bracket
with Square HoIes
j/J
,C!' Wrap
Mounting Bracket
with Slot
Attach with
anchors
(net provided)
Garage
Ftoor
22