Craftsman 139.53664SRT2 - Manual (Page 22)

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
#10-32
Lock Nuts
Figure 3
Inside
-Oarage
WJtìt
1/4X1-1/2"
Lag Screws
1/4-20x1/2" Carriage Bolts
(with square shoulder)
C" Wrap
Hardware Shown Actual Size
3
#10-32x3/8"
Screw
1 1 1 1 1 1 i 11 1
1/4X1-1/2"
0
ñ
(H
Lag Screw Staples
1/4"-20x1/2"
Carriage Bolts
1/4"-20
Lock Nut
Figure 4 Figure 5
Alternate Wall Mount
■ J-
, insMe
Garage
KiiWsifiS:''
Mounting Bracket
with Slot
Mounting Bracket
with Square Holes
"C" Wrap
Indicator Light
Alternate Floor Mount
Sensor with wire
Indicator Ught
Mounting Bracket
with Square Holes
Mounting Bracket
with Slot
Attach with
concrete anchors
(not provided)
22